Manual de Servcio PRO Movil

CDM™ and PRO SERIES™

Mobile Radios

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CA, Motorola, Professional Radio, CDM Series and CDMModel numbers, PRO Series and PRO Series Model num-bers are trademarks of Motorola.© 1999 Motorola, Inc. All rights reserved. Printed in USA.

*6881091C63*68P81091C63-O

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Computer Software Copyrights

The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola cer-tain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

Safety-1

SAFETY INFORMATIONImportant information on safe and efficient operation is included in this manual. Read this information before using your radio.

SAFE AND EFFICIENT OPERATION OF MOTOROLA TWO-WAY RADIOSThis document provides information and instructions for the safe and efficient operation of Motorola Portable and Mobile Two-Way Radios.

The information provided in this document supercedes the general safety information contained in user guides published prior to 1st. January 1998.

For information regarding radio use in hazardous areas, please refer to the Factory Mutual (FM) approval manual supplement or Instruction Card which is included with radio models that offer this capability.

EXPOSURE TO RADIO FREQUENCY ENERGYYour Motorola Two-Way Radio, which generates and radiates radio frequency (RF) electromagnetic energy (EME) is designed to comply with the following National and International Standards and Guidelines regarding exposure of human beings to radio frequency electromagnetic energy:

l Federal Communications Commission Report and Order No. FCC 96-326 (August 1996)

l American National Standards Institute (C95.1 - 1992)l National Council on Radiation Protection and Measurements (NCRP-1986)l International Commission on Non-Ionizing Radiation Protection (ICNRP- 1986)

l European Committee for Electrotechnical Standardisation (CENELEC):

To assure optimal radio performance and to ensure that your exposure to radio frequency electromagnetic energy is within the guidelines in the above standards, always adhere to the following procedures:

PORTABLE RADIO OPERATION AND EME EXPOSUREl When transmitting with a portable radio, hold radio in a vertical position with the

microphone 2.5 to 5 centimeters (one or two inches) away from the mouth. Keep antenna at least 2.5 centimeters (one inch) from your head or body when transmit-ting.

l If you wear a portable Two-Way radio on your body, ensure that the antenna is at least 2.5 centimeters (one inch) from the body when transmitting.

ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

l To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospital or health facilities may be using equipment that is sensitive to external RF energy.

l When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be in accor-dance with airline regulations or crew instructions.

ENV 50166-1 1995 E Human exposure to electromagnetic fields Low frequency (0 Hz to 10 kHz)

ENV 50166-2 1995 E Human exposure to electromagnetic fields High frequency (10 kHz to 300 GHz)

Proceedings of SC211/B 1996 “Safety Considerations for Human Exposure to EMFs from Mobile Telecommunication Equipment (MTE) in the Fre-quency Range 30MHz - 6 GHz.” (EMF - Electro-Magnetic Fields)

NOTE Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inade-quately shielded, designed or otherwise configured for electromagnetic compatibility

MAN WITH RADIO

Safety-2

OPERATIONAL WARNINGS

Vehicles with an air bag

l Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a portable radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of vehicle.

Potentially explosive atmospheres

l Turn off your Two-Way radio when you are in any area with a potentially explosive atmosphere, unless it is a radio type especially qualified for use in such areas (e.g. FM or Cenelec approved). Sparks in a potentially explosive atmosphere can cause an explosion or fire resulting in bodily injury or even death.

Batteries

l Do not replace or recharge batteries in a potentially explosive atmosphere. Contact sparking may occur while installing or removing batteries and cause an explosion.

Blasting caps and areas

l To avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting caps. In a “blasting area” or in areas posted “turn off two-way radio”, obey all signs and instructions.

OPERATIONAL CAUTIONS

Damaged antennas

l Do not use any portable Two-Way radio that has a damaged antenna. If a damaged antenna comes into con-tact with your skin, a minor burn can result.

Batteries

l All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as jewelery, keys or beaded chains touch exposed terminals. The conductive material may complete an electrical circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when placing it inside a pocket, purse or other container with metal objects.

INTRINSICALLY SAFE RADIO INFORMATIONFMRC Approved Equipment

Anyone intending to use a radio in a location where hazardous concentrations of flammable material exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and with the National Electric Code NFPA 70 (National Fire Protection Association) Article 500 (hazardous [classified] locations).

An Approval Guide, issued by Factory Mutual Research Corporation (FMRC), lists manufacturers and the products approved by FMRC for use in such locations. FMRC has also issued a voluntary approval standard for repair service (“Class Number 3605”).

FMRC Approval labels are attached to the radio to identify the unit as being FM Approved for specified hazardous atmospheres. This label specifies the hazardous Class/Division/Group along with the part number of the battery that must be used. Depending on the design of the portable unit,

NOTE The areas with potentially explosive atmospheres referred to above include fuelling areas such as: below decks on boats; fuel or chemical transfer or storage facilities; areas where the air contains chemicals or particles, such as grain, dust or metal powders; and any other area where you would normally be advised to turn off your vehicle engine. Areas with poten-tially explosive atmospheres are often but not always posted.

!W A R N I N G

!

!C a u t i o n

Safety-3

this FM label can be found on the back of the radio housing or the bottom of the radio housing.Their Approval mark is shown below.

Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and FM Approval labeling. Radios will not be “upgraded” to this capability and labeled in the field.

A modification changes the unit’s hardware from its original design configuration. Modifications can only be done by the original product manufacturer at one of its FMRC audited manufacturing facilities.

Unauthorized or incorrect modification of an FMRC Approved Product unit will negate the Approval rating of the product.

Repair of FMRC Approved Products

REPAIRS FOR MOTOROLA FMRC APPROVED PRODUCTS ARE THE RESPONSIBILITY OF THE USER.

You should not repair or relabel any Motorola manufactured communication equipment bearing the FMRC Approval label (“FMRC Approved Product”) unless you are familiar with the current FMRC Approval standard for repairs and service (“Class Number 3605).

You may want to consider using a repair facility that operates under 3605 repair service approval.

WARNING: Do not operate radio communications equipment in a hazardous atmosphere unless it is a type especially qualified (e.g. FMRC Approved) for such use. An explosion or fire may result.

WARNING: Do not operate the FMRC Approved Product in a hazardous atmosphere if it has been physically damaged (e.g. cracked housing). An explosion or fire may result.

WARNING: Do not replace or charge batteries in a hazardous atmosphere. Contact sparking may occur while installing or removing batteries and cause an explosion or fire.

WARNING: Do not replace or change accessories in a hazardous atmosphere. Contact sparking may occur while installing or removing accessories and cause an explosion or fire.

WARNING: Do not operate the FMRC Approved Product unit in a hazardous location with the accessory contacts exposed. Keep the connector cover in place when accessories are not used.

WARNING: Turn radio off before removing or installing a battery or accessory.

WARNING: Do not disassemble the FMRC Approved Product unit in any way that exposes the internal electrical circuits of the unit.

WARNING: Failure to use an FMRC Approved Product unit with an FMRC Approved battery or FMRC Approved accessories specifically approved for that product may result in the dan-gerously unsafe condition of an unapproved radio combination being used in a hazardous location.

WARNING: Incorrect repair or relabeling of any FMRC Approved Product unit could adversely affect the Approval rating of the unit.

WARNING: Use of a radio that is not intrinsically safe in a hazardous atmosphere could result in serious injury or death.

FM

APPROVED

!W A R N I N G

!

!W A R N I N G

!

!W A R N I N G

!

Safety-4

FMRC’s Approval Standard Class Number 3605 is subject to change at any time without notice to you, so you may want to obtain a current copy of 3605 from FMRC. Per the December, 1994 publication of 3605, some key definitions and service requirements are as follows:

RepairA repair constitutes something done internally to the unit that would bring it back to its original condition Approved by FMRC. A repair should be done in an FMRC Approved facility.

Items not considered as repairs are those in which an action is performed on a unit which does not require the outer casing of the unit to be opened in a manner which exposes the internal electrical circuits of the unit. You do not have to be an FMRC Approved Repair Facility to perform these actions.

Relabeling

The repair facility shall have a method by which the replacement of FMRC Approval labels are controlled to ensure that any relabeling is limited to units that were originally shipped from the Manufacturer with an FM Approval label in place. FMRC Approval labels shall not be stocked by the repair facility. An FMRC Approval label shall be ordered from the original manufacturer as needed to repair a specific unit. Replacement labels may be obtained and applied by the repair facility providing satisfactory evidence that the unit being relabeled was originally an FMRC Approved unit. Verification may include, but is not limited to: a unit with a damaged Approval label, a unit with a defective housing displaying an Approval label, or a customer invoice indicating the serial number of the unit and purchase of an FMRC Approved model.

Do Not Substitute Options or AccessoriesThe Motorola communications equipment certified by Factory Mutual is tested as a system and consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or options, or both. This Approved portable and battery combination must be strictly observed. There must be no substitution of items, even if the substitute has been previously Approved with a different Motorola communications equipment unit. Approved configurations are listed in the FM Approval guide published by FMRC, or in the product FM Supplement. This FM Supplement is shipped with FM Approved radio and battery combination from the manufacturer. The Approval guide, or the Approval standard Class Number 3605 document for repairs and service, can be ordered directly through Factory Mutual Research Corporation located in Norwood, Massachusetts.

i

TABLE OF CONTENTS

Chapter 1 Introduction

1.1 Scope of Manual ........................................................................................................................... 1-11.2 Warranty and Service Support ...................................................................................................... 1-1

1.2.1 Warranty Period ..................................................................................................................... 1-11.2.2 Return Instructions ................................................................................................................. 1-11.2.3 After Warranty Period ............................................................................................................ 1-1

1.3 Related Documents ...................................................................................................................... 1-21.4 Technical Support ......................................................................................................................... 1-21.5 Warranty and Repairs.................................................................................................................... 1-21.6 Radio Model Chart and Specifications .......................................................................................... 1-41.7 Radio Model Information ............................................................................................................... 1-4

Chapter 2 Theory of Operation

2.1 Overview....................................................................................................................................... 2-12.2 Controller Section ......................................................................................................................... 2-1

2.2.1 Radio Power Distribution ....................................................................................................... 2-22.2.2 Automatic On/Off ................................................................................................................... 2-32.2.3 Emergency............................................................................................................................. 2-42.2.4 Mechanical On/Off ................................................................................................................. 2-42.2.5 Ignition ................................................................................................................................... 2-42.2.6 Microprocessor Clock Synthesizer......................................................................................... 2-52.2.7 Serial Peripheral Interface (SPI) ............................................................................................ 2-52.2.8 SBEP Serial Interface ............................................................................................................ 2-62.2.9 General Purpose Input/Output ............................................................................................... 2-62.2.10 Normal Microprocessor Operation ......................................................................................... 2-72.2.11 Static Random Access Memory (SRAM) ............................................................................... 2-8

2.3 Controller Board Audio and Signalling Circuits ............................................................................. 2-82.3.1 Audio Signalling Filter IC with Compander (ASFIC CMP) ..................................................... 2-82.3.2 Transmit Audio Circuits.......................................................................................................... 2-92.3.3 Microphone Input Path ........................................................................................................... 2-9

2.3.3.1 PTT Sensing and TX Audio Processing ........................................................................ 2-102.3.3.2 TX Secure Audio (optional) ........................................................................................... 2-102.3.3.3 Option Board Transmit Audio ........................................................................................ 2-10

2.3.4 Transmit Signalling Circuits ................................................................................................. 2-112.3.4.1 Sub-Audible Data (PL/DPL) .......................................................................................... 2-112.3.4.2 High Speed Data ........................................................................................................... 2-122.3.4.3 Dual Tone Multiple Frequency (DTMF) Data ................................................................ 2-12

2.3.5 Receive Audio Circuits......................................................................................................... 2-132.3.5.1 Squelch Detect .............................................................................................................. 2-132.3.5.2 Audio Processing and Digital Volume Control ............................................................... 2-142.3.5.3 Audio Amplification Speaker (+) Speaker (-) ................................................................. 2-142.3.5.4 Handset Audio ............................................................................................................... 2-152.3.5.5 Filtered Audio and Flat Audio ........................................................................................ 2-152.3.5.6 RX Secure Audio (Optional) .......................................................................................... 2-15

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2.3.5.7 Option Board Receive Audio 2-152.3.6 Receive Signalling Circuits................................................................................................... 2-16

2.3.6.1 Sub-audible Data (PL/DPL) and High Speed Data Decoder ........................................ 2-162.3.6.2 Alert Tone Circuits .........................................................................................................2-162.3.6.3 Voice Storage (Optional) .............................................................................................. 2-17

2.4 UHF (403-470 MHz) Receiver Front-End ................................................................................... 2-172.4.1 Front-End Band-Pass Filters & Pre-Amplifier....................................................................... 2-192.4.2 First Mixer and 1st Intermediate Frequency (IF) ................................................................... 2-192.4.3 2nd Intermediate Frequency (IF) and Receiver Back-End................................................... 2-19

2.5 Transmitter Power Amplifier (PA) 40 W ...................................................................................... 2-202.5.1 Power Controlled Stage ....................................................................................................... 2-202.5.2 Pre-Driver Stage .................................................................................................................. 2-202.5.3 Driver Stage ......................................................................................................................... 2-212.5.4 Final Stage........................................................................................................................... 2-212.5.5 Bi-Directional Coupler .......................................................................................................... 2-212.5.6 Antenna Switch .................................................................................................................... 2-212.5.7 Harmonic Filter......................................................................................................................2-212.5.8 Power Control ....................................................................................................................... 2-21

2.6 Frequency Synthesis .................................................................................................................. 2-222.6.1 Reference Oscillator............................................................................................................. 2-222.6.2 Fractional-N Synthesizer...................................................................................................... 2-222.6.3 Voltage Controlled Oscillator (VCO) .................................................................................... 2-232.6.4 Synthesizer Operation.......................................................................................................... 2-25

2.7 VHF (136-174MHz) Receiver Front-End ..................................................................................... 2-262.7.1 Front-End Band-Pass Filters and Pre-Amplifier ................................................................... 2-272.7.2 First Mixer and 1st Intermediate Frequency (IF) .................................................................. 2-272.7.3 2nd Intermediate Frequency (IF) and Receiver Back-End................................................... 2-27

2.8 Transmitter Power Amplifier (PA) 45 W ...................................................................................... 2-282.8.1 Power Controlled Stage ....................................................................................................... 2-282.8.2 Pre-Driver Stage .................................................................................................................. 2-282.8.3 Driver Stage ......................................................................................................................... 2-292.8.4 Final Stage........................................................................................................................... 2-292.8.5 Directional Coupler............................................................................................................... 2-292.8.6 Antenna Switch .................................................................................................................... 2-292.8.7 Harmonic Filter..................................................................................................................... 2-292.8.8 Power Control ...................................................................................................................... 2-30

2.9 Frequency Synthesis .................................................................................................................. 2-302.9.1 Reference Oscillator............................................................................................................. 2-302.9.2 Fractional-N Synthesizer...................................................................................................... 2-302.9.3 Voltage Controlled Oscillator (VCO) .................................................................................... 2-322.9.4 Synthesizer Operation.......................................................................................................... 2-33

2.10 Control Head (PRO3100, CDM750) ........................................................................................... 2-342.10.1 Power Supplies .................................................................................................................... 2-342.10.2 Power On/Off ....................................................................................................................... 2-342.10.3 Microprocessor Circuit ......................................................................................................... 2-342.10.4 SBEP Serial Interface .......................................................................................................... 2-352.10.5 Keypad Keys........................................................................................................................ 2-352.10.6 Status LED and Back Light Circuit ....................................................................................... 2-352.10.7 Microphone Connector Signals ............................................................................................ 2-362.10.8 Speaker................................................................................................................................. 2-362.10.9 Electrostatic Transient Protection ........................................................................................ 2-36

2.11 Control Head (PRO5100, PRO7100, CDM1250, CDM1550) ..................................................... 2-372.11.1 Power Supplies .................................................................................................................... 2-372.11.2 Power On / Off ..................................................................................................................... 2-37

iii

2.11.3 Microprocessor Circuit ......................................................................................................... 2-372.11.4 SBEP Serial Interface .......................................................................................................... 2-382.11.5 Keypad Keys........................................................................................................................ 2-382.11.6 Status LED and Back Light Circuit....................................................................................... 2-382.11.7 Liquid Crystal Display (LCD)................................................................................................ 2-392.11.8 Microphone Connector Signals............................................................................................ 2-392.11.9 Speaker................................................................................................................................ 2-402.11.10 Electrostatic Transient Protection ........................................................................................ 2-40

Chapter 3 Maintenance

3.1 Introduction ................................................................................................................................... 3-13.2 Preventive Maintenance ............................................................................................................... 3-1

3.2.1 Inspection............................................................................................................................... 3-13.2.2 Cleaning................................................................................................................................. 3-1

3.3 Safe Handling of CMOS and LDMOS ........................................................................................... 3-23.4 General Repair Procedures and Techniques ............................................................................... 3-23.5 Recommended Test Tools ............................................................................................................ 3-53.6 Transmitter Troubleshooting Chart ................................................................................................ 3-63.7 Receiver Troubleshooting Charts ................................................................................................. 3-73.8 Synthesizer Troubleshooting Charts ............................................................................................. 3-93.9 VCO Troubleshooting Charts....................................................................................................... 3-11

Chapter 4 Schematic Diagrams, Overlays, and Parts Lists

4.1 Introduction ................................................................................................................................... 4-14.1.1 Notes For All Schematics and Circuit Boards ........................................................................ 4-1

List of Figures

2-1 Controller Block Diagram............................................................................................................... 2-12-2 DC Power Distribution Block Diagram ........................................................................................... 2-32-3 Transmit Audio Paths .................................................................................................................... 2-92-4 Transmit Signalling Paths ............................................................................................................ 2-112-5 Receive Audio Paths ................................................................................................................... 2-132-6 Receive Signalling Paths ............................................................................................................. 2-162-7 UHF Receiver Block Diagram...................................................................................................... 2-182-8 UHF Transmitter Block Diagram.................................................................................................. 2-202-9 UHF Synthesizer Block Diagram ................................................................................................. 2-232-10 UHF VCO Block Diagram ............................................................................................................ 2-242-11 VHF Receiver Block Diagram ...................................................................................................... 2-262-12 VHF Transmitter Block Diagram .................................................................................................. 2-282-13 VHF Synthesizer Block Diagram ................................................................................................. 2-312-14 VHF VCO Block Diagram ............................................................................................................ 2-32

4-1 PRO3100/CDM750 Control Head Top Overlay ............................................................................ 4-34-2 PRO3100/CDM750 Control Head Bottom Overlay ....................................................................... 4-44-3 PRO3100CDM750 Control Head Schematic Diagram, Sheet 1 ................................................... 4-54-4 PRO3100CDM750 Control Head Schematic Diagram, Sheet 2 ................................................... 4-6

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4-5 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Top Overlay ..........................................................................................................................................4-9

4-6 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Bottom Overlay ........................................................................................................................................4-10

4-7 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Schematic Diagram ..................................................................................................................... 4-11

4-8 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Keypad Schematic Diagram..................................................................................................................... 4-12

4-9 PRO5100/PRO7100/CDM1250/CDM1550 Control Head LCD Schematic ................................................................................................................................... 4-13

4-10 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Display Schematic ................................................................................................................................... 4-14

4-11 Complete Controller Schematic Diagram .................................................................................... 4-174-12 Controller Control Schematic Diagram ......................................................................................4-184-13 Controller I/O Schematic Diagram .............................................................................................. 4-194-14 Controller Audio Schematic Diagram .......................................................................................... 4-204-15 Controller Supply Voltage Schematic Diagram ........................................................................... 4-214-16 UHF (403-470MHz) Voltage Controlled Oscillator Schematic Diagram ...................................... 4-254-17 UHF (403-470MHz) Fractal-N Schematic Diagram .................................................................... 4-264-18 UHF (403-470MHz) Power Amplifier Schematic Diagram .......................................................... 4-274-19 VHF (136-174MHz) Main Board Top Side PCB .......................................................................... 4-334-20 VHF (136-174MHz) Receiver Front End Schematic Diagram .................................................... 4-344-21 VHF (136-174MHz) Receiver IF Schematic Diagram ................................................................. 4-354-22 VHF (136-174MHz) Fractal-N Schematic Diagram ..................................................................... 4-364-23 VHF (136-174MHz) Voltage Controlled Oscillator Schematic Diagram ...................................... 4-374-24 VHF (136-174MHz) Power Amplifier Schematic Diagram .......................................................... 4-38

List of Tables

1-1 Radio Model Number ..................................................................................................................... 1-3

3-1 Recommended Test tools .............................................................................................................. 3-5

4-1 PRO3100/CDM750 Control Head Parts List.................................................................................. 4-74-2 PRO5100/PRO7100/CDM1250/CDM1550 Control Head Parts List............................................ 4-154-3 Controller Parts List ..................................................................................................................... 4-224-4 UHF B1 Radio Parts List.............................................................................................................. 4-284-5 VHF (136-174MHz) Radio Parts List ........................................................................................... 4-39

1-1

Chapter 1

Introduction

1.1 Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes that occur after the printing date are incorporated by a complete manual revision or alternatively, as additions.

1.2 Warranty and Service SupportMotorola offers long term support for its products. This support includes full exchange and/or repair of the product during the warranty period, and service/repair or spare parts support out of warranty. Any “return for exchange” or “return for repair” by an authorized Motorola dealer must be accompanied by a warranty claim form. Warranty claim forms are obtained by contacting customer service.

1.2.1 Warranty PeriodThe terms and conditions of warranty are defined fully in the Motorola dealer or distributor or reseller contract. These conditions may change from time to time and the following notes are for guidance purposes only.

1.2.2 Return InstructionsIn instances where the product is covered under a “return for replacement” or “return for repair” warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.

Prior to shipping any radio back to a Motorola warranty depot, please contact the appropriate customer service for instructions. All returns must be accompanied by a warranty claim form, available from your customer services representative. Products should be shipped back in the original packaging, or correctly packaged to ensure no damage occurs in transit.

1.2.3 After Warranty PeriodAfter the Warranty period, Motorola continues to support its products in two ways:

Firstly, Motorola's Accessories and Aftermarket Division (ADD) offers a repair service to both end users and dealers at competitive prices.

Secondly, Motorola’s service department supplies individual parts and modules that can be purchased by dealers who are technically capable of performing fault analysis and repair.

NOTE Before operating or testing these units, please read the Safety Information Section in the front of this manual.

1-2 Related Documents

1.3 Related DocumentsThe following documents are directly related to the use and maintainability of this product.

1.4 Technical SupportTechnical support is available to assist the dealer/distributor and self-maintained customers in resolving any malfunction which may be encountered. Initial contact should be by telephone to customer resources wherever possible. When contacting Motorola technical support, be prepared to provide the product model number and the unit’s serial number. The contact locations and telephone numbers are listed below.

1.5 Warranty and RepairsFor warranty and repairs, contact Motorola Technical Support as listed below. Be prepared to provide the product model number and the unit’s serial number .

Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, and it is not identified as “Depot ONLY”, the part is available from Motorola Accessories and Aftermarket Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by a Motorola depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.Technical Support the product model number and the unit’s serial number .

Title Part Number

Service Manual, Basic, Engl 68P81091C62

Service Manual, Basic, Engl 68P81092C71

Service Manual, Basic, Port 68P81092C73

Service Manual, Basic,Span 68P81092C72

Service Manual, Detailed, Engl 68P81091C63

Service Manual, Detailed, Port 68P81092C76

Service Manual, Detailed, Span 68P81092C75

United States and Puerto Rico: 1-800-694-2161, Options 1, 3

Brasil: 000-811-682-0550

Colombia: 980-12-0451

Mexico: 001-800-694-2161

From other countries: (954)723-3008

Warranty and Repairs 1-3

Parts Order Entry7:00 A. M. to 7:00 P. M. (Central Standard Time)Monday through Friday (Chicago, U. S. A.)

To Order Parts in the United States of America:1-800-422-4210, or 847-538-80231-800-826-1913, or 410-712-6200 (U. S. Federal Government)TELEX: 280127FAX: 1-847-538-8198FAX: 1-410-712-4991 (U. S. Federal Government)(U. S. A.) after hours or weekends:1-800-925-4357

To Order Parts in Latin America and the Car-ibbean:1-847-538-8023Motorola PartsAccessories and Aftermarket Division(United States and Canada)Attention: Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196Accessories and Aftermarket Division Attention: Latin America and Caribbean

Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196

Parts Identification1-847-538-0021 (Voice)1-847-538-8194 (FAX)

ColombiaMotorola de ColombiaDiagonal 127A 17-64Santa Fe de BogotaColumbiaTelefono: 1-615-5759

BrazilMotorola Do BrasilRua Bandeira Paulista, 580Phone: (11)821-9991Fax: (11)828-0157

Puerto RicoMotorola de Puerto RicoA BE. Chardon, Edificio Telemundo 2Hato Rey, PR 00918Telefono: (787)641-4100Fax: (787)782-3685

MexicoMotorola De MexicoBlvd. Manuel Avila Camacho #32, Primer PisoCOL. Lomas de ChapultepecMexico D.F. 06700 CP 11000MexicoPhone: (5)387-0501Fax: (5)387-0554

1-4 Radio Model Chart and Specifications

1.6 Radio Model Chart and SpecificationsThe radio model charts and specifications are located in the Basic Service Manual listed under the Related Documents paragraph of this chapter.

1.7 Radio Model InformationThe model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages from these numbers. The example below shows one portable radio model number and its specific characteristics.

Table 1-1. Radio Model Number

Example: AAM25RHC9AA1AN

Type of Unit

Model Series

Freq. Band

Power Level

Physical Packages

Channel Spacing

ProtocolFeature Level

ModelRevision

Model Package

AAorLA

M 25 KVHF(136-

174MHz)

H1-25W

ANo Display, No Keypad

9Program-

mable

AAConventional

14F

A N

RUHF1(403-

470MHz)

K25-40W

CNo DisplayBasic Key-

pad

DULTR

264F

SUHF2(450-

512MHz)

D1-Line Dis-play, Lim-

ited Keypad

5128F

BLow

Band, R1 (29.7-

36.0MHz)

F1-Line Dis-play, Stan-

dard Keypad

8160F

CLow

Band, R2 (36.0-

42.0MHz)

N4-Line Dis-

play, Enhanced

Keypad

DLow

Band, R3 (42.0-

50.0MHz)

Mot

orol

a In

tern

al U

se

M =

Mob

ile

2-1

Chapter 2

Theory of Operation

2.1 OverviewThis chapter provides a detailed theory of operation for the radio and its components. The radio is designed as a single board unit consisting of a transmitter, receiver, and controller circuits. The board also accepts one additional option board that can provide functions such as secure voice/data, voice storage, or a signalling decoder.

A control head mounted directly on the front of the radio or remotely connected by an extension cable provides a user interface for controlling the various features of the radio.The control head contains, LED indicators, microphone connector, and buttons depending on the radio type, display, and speaker.

If a control head is not mounted directly on the front of the radio, an expansion board containing circuits for special applications can be mounted in its place on the front of the radio. An additional control head may be connected using an extension cable.

The rear of the radio provides connections for a power, antenna, and accessory cable. The accessory cable provides connections for items such as an external speaker, emergency switch, foot operated PTT, and ignition sensing, etc.

2.2 Controller The radio controller, shown in Figure 2-1, is divided into three main functions:

n Digital control

n Audio processing

n Voltage regulation.

The digital control section of the radio consists of a microprocessor (µP), support memory, support logic, signal MUX ICs, on/off circuit, and general purpose input/output circuits.

Figure 2-1. Controller Block Diagram

ExternalMicrophone

ExternalSpeaker

InternalSpeaker

SCI to

Control Head

Audio PA

Audio/Signalling

To SynthesizerMod Out

16.8 MHzReference Clockfrom Synthesizer

Recovered Audio

To RF SectionSPI

Digital

µP Clock

5VRegulator (5VD)

RAM

EEPROM

FLASH

HC11FL0

ASFIC_CMP

Accessory &

5Vfrom SynthesizerSection (5V_RF)

Connector

2-2 Theory of Operation

2.2.1 Radio Power Distribution

The dc power distribution throughout the radio board is shown in Figure 2-2. Voltage regulation for the controller is provided by four separate devices:

n U0651 (MC78M05) +5 volts

n U0641 (LM2941) +9.3 volts

n U0611 (LM2941) +12 volts

n VSTBY 5V (a combination of R0621 and VR0621)

n Additional 5 volt regulator located in the RF section.

The dc voltage applied to connector J0601 supplies power directly to the following:

n Electronic on/off control

n RF power amplifier

n 12 volt regulator

n 9.3 volt regulator

n Audio PA

n 5.6 volt stabilization circuit

n 9.3 volt regulator (U0641) supplies power to the 5 volt regulator (U0651) and 6 volt voltage divider Q0681

Regulator U0641 generates the 9.3 volts required by some audio circuits, the RF and power control circuits. Input and output capacitors C0641 and C0644 / C0645 are used to reduce high frequency noise. Resistors R0642 / R0643 set the output voltage of the regulator. If the voltage at pin 1 is greater than 1.3 volts the regulator output decreases and if the voltage is less than 1.3 volts the regulator output increases. This regulator output is enabled by a 0 volt signal on pin 2. Transistors Q0661, Q0641, and R0641 are used to disable the regulator when the radio is turned off.

Voltage regulator U0651 provides 5 volts operating voltage for the digital circuits. Operating voltage is from the regulated 9.3volts supply. Input and output capacitors (C0651 / C0652 and C0654 / C0655) reduce high frequency noise and provide proper operation during battery transients. Voltage sense device U0652 or alternatively U0653 provides a reset output that goes to 0 volts if the regulator output goes below 4.5 volts. This resets the controller to prevent improper operation. Diode D0651 prevents discharge of C0652 by negative spikes on the 9.3 volt supply.

Transistor Q0681 and resistors R0681 / R0682 divide the regulated 9.3 volts down to about 6 volts. This voltage supplies the 5 volt regulator, located on the RF section. By reducing the supply voltage of the regulator, the power dissipation is divided between the RF section and the controller section.

The VSTBY signal, derived directly from the supply voltage by components R0621 and VR0621, buffers the internal RAM. Capacitor C0622 allows the battery voltage to be disconnected for several seconds without losing RAM information. Dual diode D0621 prevents radio circuits from discharging this capacitor. When the supply voltage is applied to the radio, C0622 is charged via R0621 and D0621. When the radio is switched on, the µP enters the wrong mode if the voltage across C0622 is still too low. The regulated 5 volts charges C0622 via diode D0621.

Theory of Operation 2-3

Figure 2-2. DC Power Distribution Block Diagram

The INT SW B+ voltage from switching transistor Q0661 provides power to the circuit controlling the audio PA output. The voltage is monitored by the µP through voltage divider R0671/R0672 and the line battery voltage. Diode VR0671 limits the divided voltage to 5.6 volts to protect the µP.

Regulator U0611 generates the voltage for the switched supply voltage output (SWB+) at accessory connector J0501, pin 13. U0611 operates as a switch with voltage and current limit. Resistors R0611/R0612 set the maximum output voltage to 16.5 volts. This limitation is only active at high supply voltage levels. The regulator output is enabled by a 0 volt signal at Q0661, pin 2. Q0641 and R0641 disable the regulator when the radio is turned off. Input and output capacitors C0603 and C0611/C0612 reduce high frequency noise.

Diode VR0601 protects against transients and reverse polarity of the supply voltage.

2.2.2 Automatic On/Off

The radio software and/or external triggers turn the radio on or off without direct user action. For example, automatic turn on when ignition is sensed and off when ignition is off.

Q0661 provides the INT SW B+ voltage to the various radio circuits and to enable the voltage regulators via transistor Q0641 which contains a pnp and an npn transistor that provide an electronic on/off switch. The switch is on when the collector of the npn transistor within Q0661 is low. When the radio is off the collector is at supply voltage level. This effectively prevents current flow from emitter to collector of the pnp transistor. When the radio is turned on the voltage at the base of the npn transistor is pulled high and the pnp transistor switches on (saturation). With the INT SWB+ voltage now at supply voltage level, transistor Q0641 pulls pin 2 of the voltage regulators U0611 and U 0641 to ground level, enabling their outputs.

The electronic on/off circuits are enabled by the µP through ASFIC CMP port GCB2, line DC POWER ON, emergency switch (line EMERGENCY CONTROL), the mechanical On/Off/Volume knob on the control head (line ON OFF CONTROL), or the ignition sense circuits (line IGNITION CONTROL). If any of the four paths cause a low at the collector of the npn transistor within Q0661, the electronic "ON" is engaged.

VCOBIC

FRACTN

VSTBY

5V_RF

9V3

FLT_A+

5VD

SWB+

Option Board 40 Pin Connector

PA, Driver Antenna Switch

Control Head12 Pin Connector

Accessories20 Pin Connector

J0601 13.2V

PASUPVLTG

FLT_A+

12VRegulator

ON / OFFControl

ASFIC_CMP5.6V

IgnitionEmergencyON/OFF

9.3VRegulator

Audio PA

6VRegulator

5VRegulator

5VD

5VRegulator

5V/VDDA

MCU µP, RAM,

FLASH & EEPROM

PCIC, TX Amp

Temp Sense

RX RF AmpIF Amp


2.2.3 Emergency

The emergency switch (J0501, pin 9), when engaged, grounds the base of Q0662 via the EMERGENCY CONTROL line. This switches Q0662 off and resistor R0662 pulls the collector of Q0662 and the base of Q0663 to levels above two volts. Transistor Q0663 then switches on and pulls the collector of the npn transistor within Q0661 to ground level This enables the voltage regulators via Q0641. When the emergency switch is released, R0541 pulls the base of Q0662 up to 0.6 volts causing the collector of transistor Q0662 to go low (0.2 volts), switching Q0663 off.

While the radio is on, the µP monitors the voltage at the emergency input on the accessory connector via pin 60 and the GP5 IN ACC9 line. Three different conditions can exit: no emergency, emergency, and open connection to the emergency switch. If no emergency switch is connected or the connection to the emergency switch is broken, the resistive divider R0541/R0512 sets the voltage to about 4.7 volts. If an emergency switch is connected, a resistor to ground within the emergency switch reduces the voltage on line GP5 IN ACC9 to inform the µP that the emergency switch is operational. An engaged emergency switch pulls line GP5 IN ACC9 to ground level. Diode D0179 limits the voltage to protect the µP input.

While the EMERGENCY CONTROL signal is low and INT SW B+ is on, the µP starts execution, reads that the emergency input is active through the voltage level of line GP5 IN ACC9, and sets the DC POWER ON output of the ASFIC CMP, pin 13 to a logic high. This keeps Q0661 and Q0641 switched to allow a momentary press of the emergency switch to power up the radio. When the µP has finished processing the emergency press, it sets the DC POWER ON line to a logic 0. This turns off Q0661 and the radio turns off. Notice that the µP is alerted to the emergency condition via line GP5 IN ACC9. If the radio is already on when the emergency is triggered, the DC POWER ON signal is already high.

2.2.4 Mechanical On/Off

This refers to the on/off/volume knob located on the control head which is used to turn the radio on and off and control the volume.

If the radio is turned off and the on/off/volume knob is pressed, line ON OFF CONTROL (J0401, pin 11) goes high and switches the radio’s voltage regulators on as long as the button is pressed. The µP is alerted through line ON OFF SENSE (U0101, pin 6) which is pulled to low by Q0110 while the on/off/volume knob is pressed. In addition, an interrupt is generated at µP, pin 96. The µP asserts line DC POWER ON via ASFIC CMP, pin 13 high which keeps the radio switched on. The µP switches the radio off by setting DC POWER ON to low via ASFIC CMP pin 13.

2.2.5 Ignition

Ignition sense prevents the radio from draining the vehicle’s battery because the engine is not running.

When the IGNITION input (J0501, pin 10) goes above 5 volts, Q0661 is turned on via line IGNITION CONTROL. Q0661 turns on INT SW B+ and the voltage regulators by turning on Q0641 and the µP starts execution. The µP is alerted through line GP6 IN ACC10. While the on/off button is pressed, a high signal turns Q0181 on, which pulls µP, pin 74 to low. If the software detects a low state it asserts DC POWER ON via ASFIC, pin 13 high which keeps Q0661 and Q0641 and the radio switched on.

When the IGNITION input goes below 3 volts, Q0181 switches off and R0181 pulls µP, pin 74 to high. This alerts the software to switch off the radio by setting DC POWER ON to low. The next time the IGNITION input goes above 5 volts the above process is repeated.


2.2.6 Microprocessor Clock Synthesizer

The clock source for the µP system is generated by the ASFIC CMP (U0221). Upon power-up the synthesizer IC (FRAC-N) generates a 16.8 MHz waveform that is routed from the RF section to the ASFIC CMP, pin 34. For the main board controller the ASFIC CMP uses 16.8 MHz as a reference input clock signal for its internal synthesizer. The ASFIC CMP, in addition to the audio circuit, has a programmable synthesizer which can generate a synthesized signal ranging from 1200Hz to 32.769MHz in 1200Hz steps.

When power is first applied, the ASFIC CMP generates its default 3.6864MHz CMOS square wave UP CLK (on U0221, pin 28) and this is routed to the µP (U0101, pin 90). After the µP starts operation, it reprograms the ASFIC CMP clock synthesizer to a higher UP CLK frequency (usually 7.3728 or 14.7456 MHz) and continues operation.

The ASFIC CMP may be reprogrammed to change the clock synthesizer frequencies at various times depending on the software features that are executing. In addition, the clock frequency of the synthesizer is changed in small amounts if there is a possibility of harmonics of this clock source interfering with the desired radio receive frequency.

The ASFIC CMP synthesizer loop uses C0245, C0246 and R0241 to set the switching time and jitter of the clock output. If the synthesizer cannot generate the required clock frequency it switches back to its default 3.6864MHz output.

Because the ASFIC CMP synthesizer and the µP do not operate without the 16.8 MHz reference clock, the synthesizer and the voltage regulators should be checked first in debugging the system.

The µP uses crystal oscillator Y0131 and associated components to form a real time clock used to display the time on control heads (with display) or as time stamp for incoming calls or messages. The real time clock is powered from the voltage VSTBY to keep running while the radio is switched off. If the radio is disconnected from the supply voltage, the time must be reset.

2.2.7 Serial Peripheral Interface (SPI)

The µP communicates to many of the IC’s through its SPI port. This port consists of SPI TRANSMIT DATA (MOSI) (U0101, pin 100), SPI RECEIVE DATA (MISO) (U0101, pin 99), SPI CLK (U0101, pin 1) and chip select lines going to the various ICs. The BUS is a synchronous bus, in that the timing clock signal CLK is sent while SPI data (SPI TRANSMIT or RECEIVE) is sent. Therefore, whenever there is activity on either SPI TRANSMIT DATA or SPI RECEIVE DATA there should be a uniform signal on CLK.

The SPI TRANSMIT DATA sends serial data from the µP to a device, and SPI RECEIVE DATA is sends data from a device to the µP. On the controller there are two ICs on the SPI BUS: ASFIC CMP (U0221, pin 22), and EEPROM (U0111, pin 5). In the RF section there are two ICs on the SPI BUS: FRAC-N Synthesizer, and the Power Control IC (PCIC). The SPI TRANSMIT DATA and CLK lines going to the RF section are filtered by L0481/R0481 and L0482/R0482 to minimize noise. The chip select line CSX from U0101, pin 2 is shared by the ASFIC CMP, FRAC-N Synthesizer, and PCIC. Each of these IC‘s check the SPI data and when the sent address information matches the IC’s address, the data that follows is processed. The chip select lines for the EEPROM (EE CS), voice storage (VS CS), expansion board (EXP1 CS, EXP2 CS) and option board (OPT CS) are decoded by the address decoder U0141.

When the µP needs to program any of these IC’s it brings the chip select line CSX to a logic 0 and then sends the proper data and clock signals. The amount of data sent varies, for example the ASFIC CMP can receive up to 19 bytes (152 bits) while the PCIC can receive up to 6 bytes (48 bits). After the data is sent, the chip select line is returned to logic 1.


The option board interfaces are different in that the µP can also read data back from devices connected.The timing and operation of this interface is specific to the option connected, but the general pattern is as follows:

n Option board generates a service request via J0551, pin 29, line RDY, and µP, pin 79

n The main board asserts a chip select for that option board via U0141,pin 14, line OPT CS, J0551,pin 30

n The main board µP generates the CLK (J0551, pin 3)

n The main board µP writes serial data via J0551, pin 15 and reads serial data via J0551, pin 16

n When data transfer is complete the main board terminates the chip select and CLK activity

2.2.8 SBEP Serial Interface

The SBEP serial interface allows the radio to communicate with the Customer Programming Software (CPS), or the universal tuner via the Radio Interface Box (RIB). This interface connects to the microphone connector via control head connector (J0401, pin 8) or to the accessory connector J0401, pin 17 and comprises BUS+. The line is bi-directional, meaning that either the radio or the RIB can drive the line. The µP sends serial data via pin 98 and D0101 and it reads serial data via pin 97. Whenever the µP detects activity on the BUS+ line, it starts communication.

In addition, the SBEP serial interface is used to communicate with a connected control head. When a control head key is pressed or the volume knob is rotated, the line ON OFF CONTROL goes high. This turns on transistor Q0110 which pulls line ON OFF SENSE and µP, pin 6 to ground level. In addition, an interrupt is generated via R0109 (for SELECT 5 / MDC models) or R0128, U0125, pins 17/26 (for MPT models) and µP, pin 96. This indicates that the control head wants to start SBEP communication. The µP then reads the registers of the Universal Asynchronous Receiver Transmitter (UART) U0125 to determine whether the interrupt source was the control head or the UART (MPT models only). If the interrupt source was from the control head, the µP requests the data from the control head. The control head starts sending and after all data has been sent, the ON OFF CONTROL line goes low. The control head ignores any data on BUS+ during SBEP communication with the CPS or universal tuner.

2.2.9 General Purpose Input/Output

The controller provides eight general purpose lines (DIG1 through DIG8) available on the accessory connector J0501 to interface the external options. Lines DIG IN 1,3,5,6, are inputs, DIG OUT 2 is an output and DIG IN OUT 4,7,8 are bidirectional. The software and the hardware of the radio model define the function of each port.

DIG IN 1 can be used as external PTT input or others, set by the CPS. The µP reads this port via pin 77 and Q0171.

DIG OUT 2 can be used as normal output or external alarm output, set by the CPS. Transistor Q0173 is controlled by the µP via ASFIC CMP, pin 14.

DIG IN 3 is read by µP, pin 63 via resistor R0176

DIG IN 5 can be used as normal input or emergency input, set by the CPS. The µP reads this port via R0179 and µP, pin 60. Diode D0179 limits the voltage to protect the µP input.

DIG IN 6 can be used as normal input, set by the CPS. The µP reads this port via, pin 74 and Q0181.

DIG IN OUT 4,7,8 are bidirectional and use the same circuit configuration. Each port uses an output transistor Q0177, Q0183, Q0185 controlled by µP, pins 46, 47, 53. The ports are read by µP, pins 75, 54, 76. To use one of the ports as input the µP must turn off the corresponding output transistor.

In addition the signals from DIG IN 1, DIG IN OUT 4 are fed to the option board connector J0551 and the expansion board connector J0451.


2.2.10 Normal Microprocessor Operation

The µP is configured to operate in one of two modes: expanded or bootstrap. In expanded mode, the µP uses external memory devices to operate. In bootstrap mode, the µP uses only its internal memory.

During normal operation of the radio, the µP is operating in expanded mode and the µP (U0101) has access to three external memory devices: U0121 (EEPROM), U0122 (SRAM), and U0111 (EEPROM). Also, within the µP there are three KBs of internal RAM, as well as logic to select external memory devices.

The external EEPROM (U0111) space contains the information in the radio which is customer specific, referred to as the codeplug. This information consists of items such as:

n Band in which the radio operates

n What frequencies are assigned to what channel

n Tuning information.

The external SRAM (U0122) as well as the µP’s own internal RAM space are used for temporary calculations required by the software during execution. All of the data stored in both of these locations is lost when the radio powers off (See the particular device subsection for more details).

The µP provides an address bus of 16 address lines (ADDR 0 - ADDR 15), and a data bus of eight data lines (DATA 0 - DATA 7). There are also three control lines: CSPROG (U0101, pin 38) to chip select U0121, pin 30 (EEPROM), CSGP2 (U0101, pin 41) to chip select U0122, pin 20 (SRAM) and PG7 R W (U0101, pin 4) to select whether to read or to write. The external EEPROM (U0111,pin 1), the OPTION BOARD and EXPANSION BOARD are selected by three lines of the µP using address decoder U0141. The chips ASFIC CMP / FRAC-N / PCIC are selected by line CSX (U0101, pin 2).

When the µP is functioning normally, the address and data lines are toggling at CMOS logic levels. Specifically, the logic high levels should be between 4.8 to 5.0 volts, and the logic low levels should be between 0 to 0.2 volts. No other intermediate levels should be observed, and the rise and fall times should be <30ns.

The low-order address lines (ADDR 0 - ADDR 7) and the data lines (DATA 0-DATA 7) should be toggling at a high rate, e. g., you should set your oscilloscope sweep to 1µs/div. or faster to observe individual pulses. High speed CMOS transitions should also be observed on the µP control lines.On the µP the lines XIRQ (U0101, pin 48), MODA LIR (U0101, pin 58), MODB VSTPY (U0101, pin 57) and RESET (U0101, pin 94) should be high at all times during normal operation. Whenever a data or address line becomes open or shorted to an adjacent line, a common symptom is that the RESET line goes low periodically, with the period being in the order of 20msecs. In the case of shorted lines you may also detect the line periodically at an intermediate level, i.e. around 2.5 volts when two shorted lines attempt to drive to opposite rails.

The MODA LIR (U0101, pin 58) and MODB VSTPY (U0101, pin 57) inputs to the µP must be at a logic 1 for it to start executing correctly. After the µP starts execution it periodically pulses these lines to determine the desired operating mode. While the central processing unit (CPU) is running, MODA LIR is an open-drain CMOS output which goes low whenever the µP begins a new instruction. One instruction typically requires 2-4 external bus cycles, or memory fetches.

There are eight analog-to-digital converter ports (A/D) on U0101 labelled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which is read by the software to take appropriate action.

For example U0101, pin 67 is the battery voltage detect line. R0671 and R0672 form a resistor divider on INT SWB+. With 30K and 10K and a voltage range of 11V to 17V, that A/D port is 2.74V to 4.24V which is then be converted to ~140 to 217 respectively.


U0101-69 is the high reference voltage for the A/D ports on the µP. Capacitor C0101 filters the +5 volt reference. If this voltage is lower than +5 volt, the A/D reading is incorrect. Likewise U0101, pin 68 is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings could be incorrect.

2.2.11 Static Random Access Memory (SRAM)

The SRAM (U0121) contains temporary radio calculations or parameters that can change very frequently, and which are generated and stored by the software during its normal operation. The information is lost when the radio is turned off.

The device allows an unlimited number of write cycles. SRAM accesses are indicated by the CS signal U0122, pin 20 which is the result of U0101-CSGP2 going low. U0122 is commonly referred to as the external RAM as opposed to the internal RAM which is the 3 KBs of RAM (part of the 68HC11FL0). Both RAM spaces serve the purpose. However, the internal RAM is used for the calculated values which are accessed most often.

Capacitor C0122 filters out any ac noise which may ride on +5V at U0122.

2.3 Controller Board Audio and Signalling Circuits

2.3.1 Audio Signalling Filter IC with Compander (ASFIC CMP)

The ASFIC CMP (U0221) used in the controller has the four following functions:

n RX/TX audio shaping, i.e. filtering, amplification, attenuation

n RX/TX signalling, PL/DPL/HST/MDC/MPT

n Squelch detection

n µP clock signal generation

The ASFIC CMP is programmable through the SPI BUS (U0221-20/21/22), normally receiving 19 bytes. This programming sets up various paths within the ASFIC CMP to route audio and/or signalling signals through the appropriate filtering, gain, and attenuator blocks. The ASFIC CMP also has six general control bits (GCB0-5) which are CMOS level outputs and used for NOISE BLANKER (GCB0) in low band radios, EXTERNAL ALARM (GCB1), and DC POWER ON (GCB2) to switch the voltage regulators (and the radio) on and off. GCB3 controls U0251, pin 11 to output either RX FLAT AUDIO or RX FILTERED AUDIO on the accessory connector, pin 11. GCB4 controls U0251, pin 10 to use either the external microphone input or the voice storage playback signal. GCB5 switches the audio PA on and off.


2.3.2 Transmit Audio Circuits

Refer to Figure 2-3 for the descriptions that follow.

Figure 2-3. Transmit Audio Paths

2.3.3 Microphone Input Path

The radio supports two microphone input paths. One from the control head external microphone accessory connector J0501, pin 2, and one from the microphone auxiliary path (FLAT TX AUDIO) via accessory connector J0501, pin 5. The microphones require a DC biasing voltage provided by a resistive network.

The two microphone audio input paths enter the ASFIC CMP at U0221, pin 48 (external microphone) and U0221, pin 46 (auxiliary microphone).

The microphone is plugged into the radio control head which is connected to the controller board via J0401, pin 9. The signal is then routed via R0409 and line INT MIC to R0205. Resistors R0201 and R0202 provide 9.3Vdc bias. Resistive divider R0205/R0207 divide the input signal by 5.5 and provide input protection for the CMOS amplifier input. R0202 and C0201 provide a 560 ohm AC path to ground that sets the input impedance for the microphone and determines the gain based on the emitter resistor in the microphone’s amplifier circuit.

Capacitor C0204 provides dc blocking. The audio signal at U0221, pin 46 (TP0221) is approximately 14mV for 1.5kHz or 3kHz of deviation with 12.5kHz or 25kHz channel spacing.

The external microphone signal enters the radio on accessory connector J0501, pin 5, then it is routed via line EXT MIC to resistor R0206. Resistors R0201 and R0204 provide a 9.3Vdc bias. Resistive divider R0206 / R0208 divide the input signal by 5.5 and provide input protection for the CMOS amplifier input. R0204 and C0201 provide a 560 ohm AC path to ground that sets the input impedance for the microphone and determines the gain based on the emitter resistor in the microphone’s amplifier circuit. Capacitor C0254 provides dc blocking.

MIC IN

MOD INTORF

SECTION(SYNTHESIZER)

3644

33

40

J0501

ACCESSORYCONNECTOR

J0401

CONTROL HEADCONNECTOR

MIC

EXT MIC

FLAT TXAUDIO

42

32

5

48

46

9

2

INOUT

OPTIONBOARD

FILTERS ANDPREEMPHASIS

HS SUMMER

SPLATTERFILTER

LS SUMMER

LIMITER

ATTENUATOR

VCO ATN

TX RTNTX SND

MICINT

AUX TX

ASFIC_CMP U0221

TP0221

TP0222

MICEXT

J0451 J0551

18FLATTX RTN

EXPANSION BOARD

31IN

39 OUT


Multi switch U0251 controlled by ASFIC CMP port GCB4 selects either the external microphone input signal or the voice storage playback signal for entering the ASFIC CMP at pin 48. The audio signal at U0221-48 (TP0222) is approximately 14mVrms for 1.5kHz or 3kHz of deviation with 12.5kHz or 25kHz channel spacing.

The FLAT TX AUDIO signal from accessory connector J0501-5 is fed to the ASFIC CMP (U0221, pin 42) through C0541 and line FLAT TX RTN.

The ASFIC has an internal AGC that controls the gain in the microphone audio path. The AGC can be disabled/enabled by the µP. Another feature that can be enabled/disabled in the ASFIC is the VOX. This circuit, along with the capacitor at U0221, pin 7, provides a dc voltage allows the µP to detect microphone audio. The ASFIC can also be programmed to route the microphone audio to a speaker for public address operation.

2.3.3.1 PTT Sensing and TX Audio Processing

The microphone PTT signal coming from the control head is sent via the SBEP bus to the µP. An external PTT can be generated by grounding pin 3 on the accessory connector if this input is programmed for PTT by the CPS. When microphone PTT is sensed, the µP always configures the ASFIC CMP for the "internal" microphone audio path, and external PTT results in the external microphone audio path being selected.

Inside the ASFIC CMP, the microphone audio is filtered to eliminate frequency components outside the 300-3000Hz voice band, and pre-emphasized if pre-emphasis is enabled. The signal is then limited to prevent the transmitter from over deviating. The limited microphone audio is then routed through a summer, which is used to add in signalling data, and then to a splatter filter to eliminate high frequency spectral components that could be generated by the limiter. The audio is then routed to an attenuator, which is tuned in the factory or the field to set the proper amount of FM deviation. The TX audio emerges from the ASFIC CMP at U0221-40 MOD IN, at which point it is routed to the RF section.

2.3.3.2 TX Secure Audio (optional)

The audio follows the normal transmit audio processing until it emerges from the ASFIC CMP TX SND pin (U0221-44), which is fed to the Secure board residing at option connector J0551-33. The Secure board contains circuits to amplify, encrypt, and filter the audio. The encrypted signal is then fed back from J0551-32 to the ASFIC CMP TX RTN input (U0221-36). The signal level at this pin should be about 65mVrms. The signal is then routed through the TX path in the ASFIC CMP and emerges at MOD IN pin 40.

2.3.3.3 Option Board Transmit Audio

The audio follows the normal transmit audio processing until it emerges from the ASFIC CMP TX SND pin (U0221-44), which is fed to the option board residing at option connector J0551-33. The option board contains circuits to process the audio. The processed signal is then fed back from J0551-32 to the ASFIC CMP TX RTN input (U0221-36). The signal level at this pin is approximately 65mVrms. The signal is then routed through the TX path in the ASFIC CMP and out at MOD IN, pin 40.


2.3.4 Transmit Signalling Circuits


Figure 2-4. Transmit Signalling Paths

The three types of transmit signalling paths are as follows:

• Sub-audible data (PL/DPL/connect tone) summed with transmit voice or signalling• DTMF data for telephone communication between trunked and conventional systems• Audible signalling

2.3.4.1 Sub-Audible Data (PL/DPL)

Sub-audible data implies signalling whose frequency/data rate is below 300Hz. PL and DPL waveforms are used for conventional operation and connect tones for trunked voice channel operation. The trunking connect tone is simply a PL tone at a higher deviation level than PL in a conventional system. Although it is referred to as "sub-audible data," the actual frequency spectrum of these waveforms may be as high as 250 Hz, which is audible to the human ear. However, the radio receiver filters out any audio below 300Hz, so these tones are never heard in the actual system.

Only one type of sub-audible data can be generated by U0221 (ASFIC CMP) at any one time. The process is as follows, using the SPI BUS, the µP programs the ASFIC CMP to set up the proper low-speed data deviation and select the PL or DPL filters. The µP then generates a square wave which strobes the ASFIC PL / DPL encode input LSIO U0221-18 at twelve times the desired data rate. For example, for a PL frequency of 103Hz, the frequency of the square wave is 1236Hz.

This drives a tone generator inside U0221 which generates a staircase approximation to a PL sine wave or DPL data pattern. This internal waveform is then low-pass filtered and summed with voice or data. The resulting summed waveform then appears on U0221-40 (MOD IN), where it is sent to the RF board as previously described for transmit audio. A trunking connect tone would be generated in the same manner as a PL tone.

NOTE All three types are supported by the hardware while the radio software determines which signalling type is available.


2.3.4.2 High Speed Data

High speed data refers to the 3600 baud data waveforms, known as inbound signalling words (ISWs) used in a trunking system for high speed communication between the central controller and the radio. To generate an ISW, the µP first programs the ASFIC CMP (U0221) to the proper filter and gain settings. It then begins strobing U0221-19 (HSIO) with a pulse when the data is supposed to change states. U0221’s 5-3-2 state encoder, which is in a 2-state mode, is then fed to the post-limiter summer block and then the splatter filter. From that point, it is routed through the modulation attenuators and then out of the ASFIC CMP to the RF board. MPT 1327 and MDC are generated in much the same way as trunking ISW. However, in some cases these signals may also pass through a data pre-emphasis block in the ASFIC CMP. Also these signalling schemes are based on sending a combination of 1200 Hz and 1800 Hz tones only. Microphone audio is muted during high speed data signalling.

2.3.4.3 Dual Tone Multiple Frequency (DTMF) Data

DTMF data is a dual tone waveform used during phone interconnect operation. It is the same type of tones which are heard when using a "Touch Tone" telephone.

There are seven frequencies, with four in the low group (697, 770, 852, 941Hz) and three in the high group (1209, 1336, 1477Hz).

The high-group tone is generated by the µP (U0101-44) strobing U0221-19 at six times the tone frequency for tones less than 1440Hz or twice the frequency for tones greater than 1440Hz. The low group tone is generated by the ASFIC CMP, controlled by the µP via SPI bus. Inside U0221 the low-group and high-group tones are summed (with the amplitude of the high group tone being approximately 2 dB greater than that of the low group tone) and then pre-emphasized before being routed to the summer and splatter filter. The DTMF waveform then follows the same path as described for high-speed data


2.3.5 Receive Audio Circuits


Figure 2-5. Receive Audio Paths

2.3.5.1 Squelch Detect

The squelch detect circuits are all contained within the ASFIC CMP as shown in Figure 2-5. The radio’s RF circuits are constantly producing an output (DISC AUDIO) at the discriminator IF IC. The output signal is applied to the ASFIC CMP’s squelch detect circuits DISC input (U0221, pin 2). The squelch signal entering the ASFIC CMP is amplified, filtered, attenuated, and rectified. It is then sent to a comparator to produce an active high signal (CH ACT). The squelch circuit produces the SQ DET signal at U0221, pin 17 from the CH ACT input signal. The state of CH ACT and SQ DET go from a low (logic 0) to a high (logic 1) when an RF carrier is detected. The CH ACT and SQ DET signals from the squelch circuit are applied to the µP pins 84 and 83 respectively.

SQ DET is used to determine all audio mute/unmute decisions except for conventional scan. In this case CH ACT is a pre-indicator as it occurs slightly faster than SQ DET.

FLT RX AUDIO

J0501

11

16

1 EXTERNALSPEAKER

INTERNALSPEAKER

ACCESSORYCONNECTOR

CONTROLHEADCONNECTOR

HANDSETAUDIO

7

2

3

J0401

INTSPKR-

SPKR +

SPKR -

1

9

2

J0551

4110

INTSPKR+

4

6

DISC

ASFIC_CMPU0221

AUDIO PA

U0271

IN

OPTIONBOARD

IN

OUTVOLUMEATTEN.

FILTER ANDDEEMPHASIS

17

MICRO CONTROLLER

U0101

80

FROMRF

SECTION(IF IC)

LIMITER, RECTIFIERFILTER, COMPARATOR

SQ DET

SQUELCHCIRCUIT

16

PL FILTER LIMITER

CH ACT

AUX RX43

18LS IO

U IO AUDIO

8384

39URX OUT

17J0451

EXPANSIONBOARD

DISCAUDIO

34

2835

85

IN

7


2.3.5.2 Audio Processing and Digital Volume Control

The receiver audio signal (DISC AUDIO) enters the controller section from the IF IC where it is AC coupled by C0227 before entering the ASFIC CMP via the DISC input at U0221, pin 2. The signal is then applied to both the audio and the PL/DPL paths.

The signal on the audio path is applied to a programmable amplifier, whose setting is based on the channel bandwidth being received, an LPF filter to remove any frequency components above 3000Hz, and HPF filter to strip off any sub-audible data below 300Hz. The recovered audio passes through a de-emphasis filter, if it is enabled, to compensate for pre-emphasis which is used to reduce the effects of FM noise. The audio then goes through the 8-bit programmable attenuator whose level is set depending on the value of the volume control. The resulting filtered audio signal is passed through an output buffer within the ASFIC CMP and exits the ASFIC CMP at the AUDIO output (U0221, pin 41).

The µP programs the attenuator, using the SPI BUS, based on the volume setting. The minimum/maximum settings of the attenuator are set by codeplug parameters.

Since sub-audible signalling is summed with voice information on transmit, it must be separated from the voice information before processing. Any sub-audible signal enters the ASFIC CMP from the IF IC at DISC U0221, pin 2, then through the PL/DPL path. The signal first passes through one of two low pass filters, either PL low pass filter, or DPL/LST low pass filter. Either signal is then filtered, goes through a limiter, and exits the ASFIC CMP at LSIO (U0221, pin 18). At this point the signal appears as a square wave version of the sub-audible signal the radio received. The µP (U0101, pin 80) decodes the signal directly to determine if it is the tone/code currently active on that mode.

2.3.5.3 Audio Amplification Speaker (+) Speaker (-)

The output of the ASFIC CMP’s digital volume pot (U0221, pin 41) is routed through dc blocking capacitor C0256 to a buffer formed by U0211, pin 1. Resistors R0256 and R0268 set the correct input level to the audio PA (U0271). This is necessary because the gain of the audio PA is 46 dB and the ASFIC CMP output is capable of overdriving the PA unless the maximum volume is limited. Resistor R0267 and capacitor C0267 increase frequency components below 350 Hz.

The audio then passes through R0269 and C0272 which provides AC coupling and low frequency roll-off. C0273 provides high frequency roll-off as the audio signal is routed to audio power amplifier U0271, pins 1 and 9 which are both tied to the received audio. The audio power amplifier has one inverted and one non-inverted output that produces the differential audio output SPK+/SPK- (U0271, pins 4 and 6).

The audio PA’s dc biases are not activated until the audio PA is enabled at pin 8. The audio PA is enabled via the ASFIC CMP (U0221, pin 38). When the base of Q0271 is low, the transistor is off and U0271-8 is high via pull-up resistor R0273, and the audio PA is ON. The voltage at U0273-8 must be above 8.5Vdc to properly enable the device. If the voltage is between 3.3 and 6.4V, the device is active, but has its input (U0273, pins 1 and 9) off. This is a mute condition used to prevent an audio pop when the PA is enabled.

The SPK+ and SPK- outputs of the audio PA are dc biased and vary proportionately with FLT A+ (U0271, pin 7). FLT A+ of 11V yields a dc offset of 5V, and FLT A+ of 17V yields a dc offset of 8.5V. If either of these lines is shorted to ground, it is possible that the audio PA could be damaged. SPK+ and SPK- are routed to the accessory connector (J0501, pins 1 and 16) and to the control head connector (J0401, pins 2 and 3).


2.3.5.4 Handset Audio

Certain accessories have a self contained speaker which requires a different voltage level than that provided by U0271. For those devices, HANDSET AUDIO is available at control head connector J0401, pin 7.

The received audio from the output of the ASFIC CMP’s digital volume attenuator and buffered by U0211, pin 1, is also routed to U0211, pin 9 where it is amplified by 20 dB. This is set by the 10k/100k combination of R0261 and R0262. This signal is routed from the output of the op amp U0211 to J0401-7. The control head sends this signal directly out to the microphone jack. The maximum value of this output is 6.6Vp-p.

2.3.5.5 Filtered Audio and Flat Audio

The ASFIC CMP audio output at U0221, pin 39 is filtered and de-emphasized, but has not yet gone through the digital volume attenuator. From ASFIC CMP U0221, pin 39 the signal is routed via R0251 through gate U0251, pin 12 and AC coupled to U0211, pin 2. The gate controlled by ASFIC CMP port GCB3 (U0221, pin 35) selects between the filtered audio signal from the ASFIC CMP at pin 39 (URXOUT) or the unfiltered flat audio signal from the ASFIC CMP, U10, pin 10. Resistors R0251 and R0253 determine the gain of op amp U0211, pin 2 for the filtered audio while R0252 and R0253 determine the gain for the flat audio.The output of U0253, pin 7 is then routed to J0501, pin 11 via dc blocking capacitor C0542. Note that any volume adjustment of the signal on this path must be done by the accessory.

2.3.5.6 RX Secure Audio Option

Discriminator audio, which is now encrypted audio, follows the normal receive audio processing until it is output from the ASFIC CMP UIO (U0221, pin 10), which is fed to the secure audio board at option connector J0551, pin 35. On the secure board, the encrypted signal is converted back to normal audio format, then fed back through J0551, pin 34 to AUX RX of the ASFIC CMP (U0221, pin 43). The signal then follows a path identical to the conventional receive audio, where it is filtered (0.3 - 3kHz) and deemphasized. The signal URX SND from the ASFIC CMP (U0221-39) also routed to option connector J0551, pin 28, is not used for the secure board, but for other option boards.

2.3.5.7 Option Board Receive Audio

Unfiltered audio from the ASFIC CMP (U0221, pin 10) enters the option board at connector J0551, pin 35. Filtered audio from the ASFIC CMP URXOUT (U0221, pin 39) enters the option board at connector J0551, pin 28. On the option board, the signal is processed, then fed back through (J0551, pin 34) to AUX RX of the ASFIC CMP (U0221, pin 43). The signal then follows a path identical to conventional receive audio, where it is filtered (0.3 - 3kHz) and de-emphasized.


2.3.6 Receive Signalling Circuits


Figure 2-6. Receive Signalling Paths

2.3.6.1 Sub-Audible Data (PL/DPL) and High Speed Data Decoder

The ASFIC CMP (U0221) filters and limits all received data. The data enters the ASFIC CMP at input DISC (U0221, pin 2). Inside U0221 the data is filtered according to data type (HS or LS), then it is limited to a 0-5V digital level. The MDC and trunking high speed data appear at U0221, pin 19, where it connects to the µP U0101, pin 82

The low speed limited data output (PL, DPL, and trunking LS) appears at U0221, pin 18, where it connects to the µP U0101, pin 80.

The low speed data is read by the µP at twice the frequency of the sampling waveform; a latch configuration in the ASFIC CMP stores one bit every clock cycle. The external capacitors C0236, and C0244 set the low frequency pole for a zero crossings detector in the limiters for PL and HS data. The hysteresis of these limiters is programmed based on the type of received data.

2.3.6.2 Alert Tone Circuits

When the software determines that it needs to give the operator an audible feedback for a good key press, or for a bad key press, or radio status (trunked system busy, phone call, circuit failures), it sends an alert tone to the speaker. It does so by sending SPI BUS data to U0221 which sets up the audio path to the speaker for alert tones. The alert tone itself can be generated in one of two ways: internally by the ASFIC CMP, or externally using the µP and the ASFIC CMP.

The allowable internal alert tones are 304, 608, 911, and 1823Hz. In this case a code contained within the SPI BUS load to the ASFIC CMP sets up the path and determines the tone frequency, and at what volume level to generate the tone. (It does not have to be related to the voice volume setting).

For external alert tones, the µP can generate any tone within the 100-3000Hz audio band. This is accomplished by the µP generating a square wave which enters the ASFIC CMP at U0221-19. Inside the ASFIC CMP this signal is routed to the alert tone generator

The output of the generator is summed into the audio chain just after the RX audio de-emphasis block. Inside U0221 the tone is amplified and filtered, then passed through the 8-bit digital volume attenuator, which is typically loaded with a special value for alert tone audio. The tone exits at U0221-41 and is routed to the audio PA like receive audio.

DET AUDIODISCRIMINATOR AUDIO

FROM RF SECTION(IF IC)

19

18

25

2

82

80

DISC

PLCAP2

LSIO

HSIODATA FILTERAND DEEMPHASIS LIMITER

FILTER LIMITER

ASFIC_CMPU0221

MICROCONTROLLER

U0101

85

44

8

PLEAP


2.3.6.3 Voice Storage Option

The Voice Storage (VS) option can be used to store audio signals coming from the receiver or from the microphone. Any stored audio signal can be played back over the radio’s speaker or sent out via the radio’s transmitter.

The Voice Storage option can by placed on the controller section or on an additional option board which resides on option board connector J0551. Voice Storage IC U0301 provides all required functionality and is powered from 3.3 volts regulator U0351 which is powered from the regulated 5 volts. Dual shottky diode D0301 reduces the supply voltage for U0301 to 3 volts. The µP controls U0301 via SPI bus lines CLK (U0301-8), DATA (U0301-10) and MISO (U0301-11). To transfer data, the µP first selects the U0301 via address decoder U0141, line VS CS and U0301 pin 9. Then the µP sends data through line DATA and receives data through line MISO. Pin 2 (RAC) of U0301 indicates the end of a message row by a low state for 12.5 ms and connects to µP pin 52. A low at pin 5 (INT), which is connected to µP pin 55 indicates that the Voice Storage IC requires service from the µP.

Audio, either from the radio’s receiver or from one of the microphone inputs, emerges the ASFIC CMP (U0221) at pin 43, is buffered by op-amp U0341-1, then enters the voice storage IC U0301 at pin 25. During playback, the stored audio emerges U0301 at pin 20. To transmit the audio signal, it is fed through resistive divider R0344 / R0345 and line VS MIC to input selector IC U0251. When this path is selected by the µP via ASFIC CMP port GCB 4, the audio signal enters the ASFIC CMP at pin 48 and is processed like normal transmit audio. To play the stored audio over the radio’s speaker, the audio from U0301 pin 20 is buffered by op-amp U0341-2 and fed via switch U0342 and line FLAT RX SND to ASFIC CMP pin 10 (UIO). In this case, this ASFIC CMP pin is programmed as input and feeds the audio signal through the normal receiver audio path to the speaker or handset. Switch U0342 is controlled by the µP via ASFIC CMP port GCB 4 and feeds the stored audio only to the ASFIC CMP port UIO when it is programmed as input.

2.4 UHF (403-470 MHz) Receiver Front-EndThe receiver is able to cover the UHF range from 403 to 470 MHz. It consists of four major blocks: front-end bandpass filters and preamplifier,

• First mixer• 1st IF• 2nd IF • Receiver back-end

Two varactor tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the 1st IF of 44.85 MHz. Low side first injection is used.


Figure 2-7. UHF Receiver Block Diagram

The 2-pole 44.85 MHz crystal filters in the 1st IF section and two pairs of 455 kHz ceramic filters in the 2nd IF section provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25 kHz channel spacing is selected via control line BWSELECT. The 2nd IF at 455 kHz is mixed, amplified, and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.

Demodulator

1. Crystal Filter

MixerVaractor Tuned Filter

RF AmpVaractor Tuned Filter

Pin Diode Antenna SwitchRF Jack

Control Voltagefrom PCIC First LO

from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter

455kHz Filter(25kHz)


455kHz Filter(12.5kHz)


Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp

Filter Bank Selectionfrom Synthesizer IC

Harmonic Filter

BWSELECT


2.4.1 Front-End Band-Pass Filters and Pre-Amplifier

The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C4001, C4002, D4001 and associated components). The 2-pole pre-selector filter tuned by the varactor diodes D4001 and D4002 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U4501) in the Transmitter section. A dual hot carrier diode (D4003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q4003) with collector base feedback to stabilize gain, impedance, and intermodulation. The collector current of approximately 11-16 mA is drawn from the 9.3 volt supply via L4003 and R4002. A 3dB pad (R4006,R4007,R4011 and R4008 - R4010) stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The varactor diodes D4004 and D4005 are controlled by the same signal FECTRL_1, which controls the pre-selector filter. A following 1 dB pad (R4013 - R4015) stabilizes the output impedance and intermodulation performance.

2.4.2 First Mixer and 1st Intermediate Frequency (IF)

The signal coming from the front-end is converted to the first IF (44.85 MHz) using a cross over quad diode mixer (D4051). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using low side injection via matching transformers T4051 and T4052. The injection signal (RXINJ) coming from the RX VCO buffer (Q4332) is filtered by the lowpass filter consisting of (L4053, L4054, C4053 - C4055) followed by a matching transformer T4052 and has a level of approximately 15dBm.

The mixer IF output signal (IF) from transformer T4501pin 2 is fed to the first two pole crystal filter FL3101. The filter output in turn is matched to the following IF amplifier.

The IF amplifier Q3101 is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the 5 volt supply. Its output impedance is matched to the second two pole crystal filter FL3102. The signal is further amplified by a preamplifier (Q3102) before going into pin 1 of IFIC (U3101).

A dual hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

2.4.3 2nd Intermediate Frequency (IF) and Receiver Back-End

The 44.85 MHz 1st IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the low IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The 2nd IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters (FL3112, FL3114) for 20/25 kHz channel spacing or FL3111 and FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3103 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101 pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101 pin 63) and is available at accessory connector J0501-15.


2.5 Transmitter Power Amplifier (PA) 40 WThe radio’s 40W power amplifier (PA) is a four stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. It consists of the following four stages in the line-up. The first stage is a LDMOS predriver (U4401) that is controlled by pin 4 of PCIC (U4501) via Q4473 (CNTLVLTG). It is followed by another LDMOS stage (Q4421), an LDMOS stage (Q4431), and a bipolar final stage (Q4441).

Figure 2-8. UHF Transmitter Block Diagram

Device Q4401 is surface mounted. Q4421, Q4431 and Q4441 are directly attached to the heat sink.

2.5.1 Power Controlled Stage

The first stage (U4401) amplifies the RF signal from the VCO (TXINJ) and controls the output power of the PA. The output power of the transistor U4401 is controlled by a voltage control line feed from the PCIC pin4(U4501). The control voltage simultaneously varies the bias of two FET stages within U4401. This biasing point determines the overall gain of U4401 and therefore its output drive level to Q4421, which in turn controls the output power of the PA.

In receive mode the voltage control line is at ground level and turns off Q4473 which in turn switches off the biasing voltage to U4401.

2.5.2 Pre-Driver Stage

The next stage is a 13dB gain LDMOS device (Q4421) which requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line PCIC_MOSBIAS_1 is set in transmit mode by PCIC pin 24 and fed to the gate of Q4421 via the resistive network R4407, R4408, R4416 and R4415. The bias voltage is tuned in the factory.

PCIC

Pin Diode Antenna Switch RF Jack

Antenna

Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor


2.5.3 Driver Stage

The following stage is an enhancement-mode N-Channel MOSFET device (Q4431) providing a gain of 10dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line Bias_2_UHF_PA_1 is set in transmit mode by the ASFIC and fed to the gate of Q4431 via the resistive network R4630, R4631, and R4632. This bias voltage is also tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s dc supply voltage input, A+, via L4421.

2.5.4 Final Stage

The final stage uses the bipolar device Q4441. The device’s collector current is also drawn from the radio’s dc supply voltage input. To maintain class C operation, the base is dc-grounded by a series inductor (L4441) and a bead (L4440). A matching network consisting of C5541-C5544 and two striplines transform the impedance to 50 Ohms and feeds the directional coupler.

2.5.5 Bi-Directional Coupler

The Bi-directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reverse power of the RF power from Q4441. The coupled signal is rectified to an output power proportional dc voltage by the diodes D4451 & D4452 and sent to the RFIN of the PCIC. The PCIC controls the gain of stage U4401 as necessary to hold this voltage constant. This ensures the forward power out of the radio is held to a constant value.

2.5.6 Antenna Switch

The antenna switch utilizes the existing dc feed (A+) to the last stage device (Q4441). Basic operation is to have both PIN diodes D4471 and D4472 turns on during key-up by forward biasing them. It is achieve by pulling down the voltage at the cathode end of D4472 to around 11.8V (0.7V drop across each diode). The current through the diodes needs to be set around 80mA to fully open the transmit path through resistor R4496. Q4472 is a current source controlled by Q4471 and is eventually connected to pin ANO of PCIC. VR4471 ensures the voltage at the resistor R4511 never exceeds 5.6V

2.5.7 Harmonic Filter

Inductors L4491, L4492, L4493 and capacitors C4448, C4493,C4494, C4496 and C4498 form a low-pass filter to attenuate harmonic energy from the transmitter. R4491 is used to drain any electrostatic charges that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

2.5.8 Power Control

The transmitter uses the Power Control IC (PCIC, U4501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the bi-directional coupler and rectified, to provide a dc voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power.

The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the control loop. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuits.


The PCIC provides a dc output voltage at pin 4 (INT) and applied as CNTLVLTG to the power-adjust input pin of the first transmitter stage U4401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the dc voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.

Capacitors C4502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels.

U4502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the dc voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced so as to reduce the transmitter temperature.

2.6 Frequency SynthesisThe synthesizer subsystem consists of the reference oscillator (Y4261 or Y4262), the low voltage fractional-N synthesizer (LVFRAC-N, U4201), and the Voltage Controlled Oscillator VCO.

2.6.1 Reference Oscillator

The reference oscillator (Y4262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An Analog-to-Digital (A/D) converter internal to U4201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U4201, pin 25 to set the frequency of the oscillator. The output of the oscillator (pin 3 of Y4262) is applied to pin 23 (XTAL1) of U4201 via an RC series combination.

In applications where less frequency stability is required the oscillator inside U4201 is used along with an external crystal Y4261, varactor diode D4261, C4261, C4262 and R4262. In this case, Y4262, R4263, C4235 and C4251 are not used. When Y4262 is used, Y4261, D4261, C4261, C4262 and R4262 are not used, and C4263 is increased to 0.1 uF.

2.6.2 Fractional-N Synthesizer

The LVFRAC-N synthesizer IC (U4201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balanced attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13V positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

A voltage of 5V applied to the super filter input (U4201 pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R4322) and the synthesizer charge pump resistor network (R4251, R4252). The synthesizer supply voltage is provided by the 5V regulator U4211.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U5701-32), a voltage of 13 Vdc is being generated by the positive voltage multiplier circuitry (D4201, C4202, C4203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase (U4201-14 and -15).


Figure 2-9. UHF Synthesizer Block Diagram

Output LOCK (U4201-4) provides information about the lock status of the synthesizer loop. A high level at this output indicates a stable loop. IC U4201 provides the 16.8 MHz reference frequency at pin 19.

The serial interface (SRL) is connected to the µP via the data line DATA (U4201-7), clock line CLK (U4201-8), and chip enable line CSX (U4201-9).

2.6.3 Voltage Controlled Oscillator (VCO)

The Voltage Controlled Oscillator (VCO) consists of the VCO buffer IC (VCOBIC, U4301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuits.

The VCOBIC together with Fractional-N synthesizer (U4201) generates the required frequencies in both transmit and receive modes. The TRB line (U4301 pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables TX tank and TX output (pin 10), and a low enables RX tank and RX output (pin 8). A sample of the signal from the enabled output is routed from U4301 pin 12 (PRESC_OUT), via a low pass filter, to pin 32 of U4201 (PREIN).

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER

DATA (U0101 PIN 100)

CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)

MOD IN (U0221 PIN 40)

+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT

U4201 LOW VOLTAGEFRACTIONAL-NSYNTHESIZER

AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection

TX RF INJECTION(1ST STAGE OF PA)

LO RF INJECTION

VOLTAGE CONTROLLED OSCILLATOR

LINE2-POLELOOP

FILTER


A steering line voltage (VCTRL) between 3.0V and 10.0V at varactor diode CR4311 will tune the full TX frequency range (TXINJ) from 403 MHz to 470 MHz, and at varactor diodes CR4301, CR4302 and CR4303 will tune the full RX frequency range (RXINJ) from 358 MHz to 425 MHz. The tank circuits uses the Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q4301 is used in conjunction with the internal transistor for better side-band noise.

Figure 2-10. UHF VCO Block Diagram

The external RX buffers (Q4332) are enabled by a high at U4201 pin 3 (AUX4) via transistor switch Q4333. In TX mode the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U4201 pin41) is applied to the modulation circuits CR4321, R4321, R4322 and C4324. These modulate the TX VCO frequency via coupling capacitor C4321. Varactor CR4321 is biased for linearity from the VSF.

Presc

RX

TX

MatchingNetwork Low Pass

Filter

Attenuator

Pin8

Pin14

Pin10

(U4201 Pin28)

VCC Buffers

TX RF Injection

U4201 Pin 32

AUX3 (U4201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20

TX/RX/BSSwitching Network

U4301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U4201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U4201 Pin28)

Steer Line Voltage (VCTRL)

Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332


2.6.4 Synthesizer Operation

The complete synthesizer subsystem comprises mainly of a low voltage FRAC-N (LVFRACN) IC, Reference Oscillator (crystal oscillator with temperature compensation), charge pump circuits, loop filter circuits, and dc supply. The output signal (PRESC_OUT) of the VCOBIC (U4301, pin12) is fed to of U4201, pin 32 (PREIN) via a low pass filter (C4229,L4225,C4226) which attenuates harmonics and provides correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U4201) is basically a dual modulus pre-scaler with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator (Y4261 or Y4262).

The output signal of the phase detector is a pulsed dc signal which is routed to the charge pump. The charge pump outputs a current at pin 43 of U4201 (IOUT). The loop filter (which consists of R4221-R4223, C4221-C4225,L4221) transforms this current into a voltage that is applied to the varactor diodes CR4311 for transmit, CR4301, CR4302 & CR4303 for receive and alters the output frequency of the VCO.The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U4201-40) or BIAS 2 (U4201-39). The currents are set by the value of R4251 or R4252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer the magnitude of the loop current is increased by enabling the IADAPT (U4201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U4201-4).

LOCK (U4201-4) signal is routed to one of the µP´s ADCs input U101-56. From the voltage the µP determines whether LOCK is active.

In order to modulate the PLL the two spot modulation method is utilized Via pin 10 (MODIN) on U4201. The audio signal is applied to both the A/D converter (low frequency path) as well as the balanced attenuator (high frequency path). The A/D converter converts the low frequency analog modulating signal into a digital code which is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U4201-41) and connected to the VCO modulation diode CR4321 via R4321, C4325.


2.7 VHF (136-174MHz) Receiver Front-EndThe receiver is able to cover the VHF range from 136 to 174 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, 1st IF, 2nd IF, and receiver back-end. Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. High-side injection is used.

Figure 2-11. VHF Receiver Block Diagram

There are two 2-pole 44.85 MHz crystal filters in the 1st IF section and 2 pairs of 455 kHz ceramic filters in the 2nd IF section to provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25kHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.

Demodulator

1. Crystal Filter

MixerVaractor Tuned FilterRF AmpVaractor

Tuned Filter

Pin Diode Antenna SwitchRF Jack

Control Voltagefrom PCIC First LO

from FGU

Recovered Audio

RSSI

IF

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp

Filter Bank Selectionfrom Synthesizer IC


2.7.1 Front-End Band-Pass Filters and Pre-Amplifier

The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C3001, C3002, D3001 and associated components). The 2-pole pre-selector filter tuned by the dual varactor diode D3001 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U3501) in the Transmitter section. A dual hot carrier diode (D3003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is a surface mount device (SMD) Q3001 with collector-base feedback to stabilize gain, impedance, and intermodulation. Transistor Q3002 compares the voltage drop across resistor R3002 with a fixed base voltage from divider R3011, R3000 and R3012, and adjusts the base current of Q3001 as necessary to maintain its collector current constant at approximately 15-20 mA. Operating voltage is from the regulated 9.3V supply (9V3). During transmit, 9.1 volts (K9V1) turns off both transistors Q3002 and Q3001. This protects the RF pre-amplifier from excessive dissipation during transmit mode. A following 3dB pad (R3006 – R3008 and R3016 – R3018) stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The dual varactor diode D3004 is controlled by the same signal FECTRL_1, which controls the pre-selector filter.

2.7.2 First Mixer and 1st Intermediate Frequency (IF)

The signal coming from the front-end is converted to the 1st IF frequency of 44.85 MHz using a cross over quad diode mixer (D3031). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using high side injection. The high-side injection signal (RXINJ) from the frequency synthesizer circuit has a level of approximately +13 dBm and is injected via matching transformer T3002.

The IF output signal (IF) from transformer T3001 pin 2 is fed to the first 2- pole crystal filter FL3101. The filter output in turn is matched to IF amplifier Q3101 which is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the 5 volt supply. Its output impedance is matched to the second 2-pole crystal filter FL3102. The signal is further amplified by a preamplifier (Q3102) before going into pin 1 of IFIC (U3101).

A dual hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

2.7.3 2nd Intermediate Frequency (IF) and Receiver Back-End

The 44.85 MHz 1st IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC, the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the 2nd IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The 2nd IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters FL3112, FL3114 for 20/25 kHz channel spacing or FL3111, FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3101 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101, pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101, pin 63) and in addition is available at accessory connector J0501-15.


2.8 Transmitter Power Amplifier (PA) 45 WThe radio’s 45 W PA is a four-stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. The line-up consists of three stages which utilize LDMOS and VMOS technology, followed by a final stage using a bipolar device. The gain of the first stage (U3401) is adjustable, controlled by pin 4 of PCIC (U3501) via Q3501 and Q3502 (VCONT). It is followed by an LDMOS pre-driver stage (Q3421), a VMOS driver stage (Q3431) and a bipolar final stage (Q3441).

Figure 2-12. VHF Transmitter Block Diagram

Devices U3401 and Q3421 are surface mounted. The remaining devices are directly attached to the heat sink.

2.8.1 Power Controlled Stage

The first stage (U3401) is a 20 dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U3401 is controlled by a dc voltage applied to pin 1 from the power control circuit (U3501 pin 4, with transistors Q3501 and Q3502 providing current gain and level-shifting). The control voltage simultaneously varies the bias of two FET stages within U3401. This biasing point determines the overall gain of U3401 and therefore its output drive level to Q3421, which in turn controls the output power of the PA.

In receive mode the voltage control line is at ground level and turns off Q3501-2, which in turn switches off the biasing voltage to U3401.

2.8.2 Pre-Driver Stage

The next stage is an LDMOS device (Q3421) providing a gain of +13 dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line PCIC_MOSBIAS_1 is set during transmit mode by the PCIC pin 24, and fed to the gate of Q3421 via the resistive network R3410, R3415, and R3416. The bias voltage is factory tuned.

PCIC

Pin Diode Antenna Switch RF Jack

Antenna

Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor


2.8.3 Driver Stage

The following stage is an enhancement-mode N-Channel MOSFET device (Q3431) providing a gain of 10 dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set in transmit mode by the ASFIC and fed to the gate of Q3431 via the resistive network R3404, R3406, and R3431-5. This bias voltage is also tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s dc supply voltage input, PASUPVLTG, via L3431 and L3432.

2.8.4 Final Stage

The final stage uses bipolar device Q3441. The device’s collector current is also drawn from the radio’s dc supply voltage input. To maintain class C operation, the base is dc-grounded by a series inductor (L3441) and a bead (L3442). A matching network consisting of C3446-52, C3467, L3444-5, and two striplines, transforms the impedance to approximately 50 ohms and feeds the directional coupler.

2.8.5 Directional Coupler

The directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reflected power delivered by Q3441. The coupled signals are rectified by D3451-2 and combined by R3463-4. The resulting dc voltage is proportional to RF output power and feeds the RFIN port of the PCIC (U3501, pin 1). The PCIC controls the gain of stage U3401 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

An abnormally high reflected power level, such as may be caused by a damaged antenna, also causes the dc voltage applied to the PCIC to increase, and this will cause a reduction in the gain of U3401, reducing transmitter output power to prevent damage to the final device due to an improper load.

2.8.6 Antenna Switch

The antenna switch consists of two PIN diodes, D3471 and D3472. In the receive mode, both diodes are off. Signals applied at the antenna jack J3401 are routed, via the harmonic filter, through network L3472, C3474 and C3475, to the receiver input. In the transmit mode, the keyed 9 volts turns on Q3471 which enables current sink Q3472, set to 96 mA by R3473 and VR3471. This completes a dc path from PASUPVLTG, through L3473, D3471, L3477, L3472, D3472, L3471, R3474 and the current sink, to ground. Both diodes are forward biased into conduction. The transmitter RF from the directional coupler is routed via D3471 to the harmonic filter and antenna jack. D3472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L3472 is selected to appear as a broadband guarter-wave transmission line, making the short circuit presented by D3472 appear as an open circuit at the junction of D3472 and the receiver path.

2.8.7 Harmonic Filter

Components L3491-L3494 and C3490-C3498 form a nine-pole Chebychev low-pass filter to attenuate harmonic energy of the transmitter. R3490 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.


2.8.8 Power Control

The transmitter uses the power control IC (PCIC, U3501) to control the power output of the radio. A portion of the forward and reflected RF power from the transmitter is sampled by the directional coupler, rectified and summed, to provide a dc voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power.

The ASFIC contains a digital to analog converter (DAC) which provides a reference voltage of the control loop to the PCIC via R3517. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuit.

The PCIC provides a dc output voltage at pin 4 (INT) which is amplified and shifted in dc level by stages Q3501 and Q3502. The 0 to 4 Vdc range at U1503, pin 4 is translated to a 0 to 8.5 Vdc range at the output of Q3501, and applied as VCONT to the power-adjust input pin of the first transmitter stage U3401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the dc voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.

Capacitors C3502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels.

U3502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the dc voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced so as to reduce the transmitter temperature.

2.9 Frequency SynthesisThe frequency synthesizer subsystem consists of the reference oscillator (Y3261 or Y3262), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U3201), and the voltage-controlled oscillators and buffer amplifiers (U3301, Q3301-2 and associated circuits).

2.9.1 Reference Oscillator

The reference oscillator (Y3262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An analog-to-digital (A/D) converter internal to U3201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U3201 (pin 25) to set the frequency of the oscillator. The output of the oscillator (U3262 pin 3) is applied to pin 23 (XTAL1) of U3201 via R3263 and C3235.

In applications were less frequency stability is required, the oscillator inside U3201 is used along with an external crystal Y3261, varactor diode D3261, C3261, C3262 and R3262. In this case, Y3262, R3263, C3235 and C3251 are not used. When Y3262 is used, Y3261, D3261, C3261, C3262 and R3262 are not used, and C3263 is increased to 0.1 uF.

2.9.2 Fractional-N Synthesizer

The LVFRAC-N synthesizer IC (U3201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balance attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13 volt positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.


Figure 2-13. VHF Synthesizer Block Diagram

A voltage of 5V applied to the super filter input (U3201 pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R3363) and the synthesizer charge pump resistor network (R3251, R3252). The synthesizer supply voltage is provided by the 5V regulator U3211.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U3201-47), a voltage of 13 Vdc is being generated by the positive voltage multiplier circuits (D3201, C3202, C3203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase signals (U3201-14 and -15).

Output LOCK (U3201-4) provides information about the lock status of the synthesizer loop. A high level at this output indicates a stable loop. IC U3201 provides the 16.8 MHz reference frequency at pin 19.

The serial interface (SRL) is connected to the µP via the data line DATA (U3201-7), clock line CLK (U3201-8), and chip enable line CSX (U3201-9).

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER

DATA (U0101 PIN 100)

CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)

MOD IN (U0221 PIN 40)

+5V (U3211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U3211 PIN 1)

AUX1

VDD, DC5V MODOUT

U3201 LOW VOLTAGEFRACTIONAL-NSYNTHESIZER

AUX2

TRB

TX RF INJECTION(1ST STAGE OF PA)

LO RF INJECTION

VOLTAGE CONTROLLED OSCILLATOR

LINE2-POLELOOP

FILTER

1


2.9.3 Voltage Controlled Oscillator (VCO)

The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U3301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuits.

Figure 2-14. VHF VCO Block Diagram

The VCOBIC together with the Fractional-N synthesizer (U3201) generates the required frequencies in both the transmit and receive modes. The TRB line (U3301, pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables the TX tank and TX output (pin 10), and a low enables the RX tank and RX output (pin 8). A sample of the signal from the enabled RF output is routed from U3301, pin 12 (PRESC_OUT), via a low pass filter, to U3201, pin 32 (PREIN).

A steering line voltage (VCTRL) between 2.5 volts and 11 volts at varactor diode D3361 tune the full TX frequency range (TXINJ) from 136 MHz to 174 MHz, and varactor diode D3341 tunes the full RX frequency range (RXINJ) from 181 MHz to 219 MHz. The RX tank circuit uses a Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q3304 is used for better side-band noise.

Presc

RX

TX

MatchingNetwork Low Pass

Filter

Attenuator

Pin8

Pin14

Pin10

(U3211 Pin1)

VCC Buffers

TX RF Injection

U3201 Pin 32

AUX3 (U3201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20

TX/RX/BSSwitching Network

U3301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U3201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U3211 Pin1)

Steer Line Voltage (VCTRL)

Pin13

Pin3

TRB IN

LO RF INJECTION

Q3304

Q3301


The external RX buffers (Q3301 and Q3302) are enabled by a high at U3301, pin 7 (RX_SWITCH) via transistor switch Q3303. In the TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U3201 pin 41) is applied to varactor diode D3362, which modulates the TX VCO frequency via capacitor C3362. Varactor D3362 is biased for linearity from the VSF.

2.9.4 Synthesizer Operation

The complete synthesizer subsystem consists of the low voltage FRAC-N (LVFRACN), reference oscillator (a crystal oscillator with temperature compensation), charge pump circuit, loop filter circuit and a dc supply. The output signal PRESC from the VCOBIC (U3301 pin 12) is fed to U3201 pin 32 (PREIN) via a low pass filter (C3318, L3318 and C3226) which attenuates harmonics and provides the correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U3201) is a dual modulus type with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal. The reference signal is generated by dividing down the signal of reference oscillator Y3261 or Y3262.

The output signal of the phase detector is a pulsed dc signal which is routed to the charge pump. The charge pump outputs a current at U3201 pin 43 (IOUT). The loop filter (which consists of R3221-R3223 and C3221-C3224) transforms this current into a voltage that is applied to the varactor diodes (D3361 for transmit, D3341 for receive) to alter the output frequency of the appropriate VCO. The current can be set to a value fixed within the LVFRAC-N IC, or to a value determined by the currents flowing into BIAS 1 (U3201-40) or BIAS 2 (U3201-39). The currents are set by the value of R3251 and R3252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT pin (U3201-45) for a certain software programmable time (adapt mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1 and BIAS 2, or by the internal current source. A settled synthesizer loop is indicated by a high level signal at U3201-4 (LOCK).

The LOCK signal is routed to one of the µP´s ADC inputs (U0101-56). From the measured voltage, the µP determines whether LOCK is active.

To modulate the PLL, the two spot modulation method is utilized. Via U3201, pin 10 (MODIN), the audio signal is applied to both the A/D converter (low frequency path) as well as the balance attenuator (high frequency path). The A/D converter changes the low frequency analog modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U3201-41) and connected to the VCO modulation diode D3362 via R3364.


2.10 Control Head (PRO3100, CDM750)ThE Control Head Contains the internal speaker, the on/off/volume knob, the microphone connector, several buttons to operate the radio and several indicator Light Emitting Diodes (LED) to inform the user about the radio status. To control the LED’s and to communicate with the host radio the control head uses the Motorola 68HC11E9 µP.

2.10.1 Power Supplies

The power supply to the control head is taken from the host radio’s FLT A+ voltage via connector J0801, pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at battery level and is used for the LED’s, the back light and to power up the radio via on / off / volume knob. The stabilized +5 volt is used for µP and the keypad buttons. The voltage USW 5V derived from the FLT A+ voltage and stabilized by the series combination of R0822, VR0822 is used to buffer the internal RAM of the µP (U0831). C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Dual diode D0822 prevents radio circuits from discharging this capacitor. When the supply voltage is applied to the radio, C0822 is charged via R0822 and D0822. To avoid the µP entering the wrong mode if the radio is switched on while the voltage across C0822 is still too low, the regulated 5 volt supply charges C0822 via diode D0822.

2.10.2 Power On/Off

The on/off/Volume knob, when pressed, switches the radio’s voltage regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital transistor Q0822 informs the control head’s µP about the pressed knob. The µP asserts pin 62 and line CH REQUEST low to hold the line ON OFF CONTROL at 5 volts via Q0823 and D0821. The high line ON OFF CONTROL also informs the host radio that the control head’s µP wants to send data via the SBEP bus. When the radio returns a data request message, the µP informs the radio about the pressed knob. If the radio is switched off, the radio’s µP switches it on and vice versa. If the on/off/volume knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF CONTROL and sends a data request message. The control head µP informs the radio about the pressed knob and the radio’s µP switches the radio off.

2.10.3 Microprocessor Circuit

The control head uses the Motorola 68HC11E9 microprocessor (µP) (U0831) to control the LED’s and to communicate with the host radio. RAM and ROM are contained within the µP.

The µP generates it’s clock using the oscillator inside the µP along with a 8 MHz ceramic resonator (U0833) and R0920.

The µP’s RAM is always powered to maintain parameters such as the last operating mode. This is achieved by maintaining 5V at uP, pin 25. Under normal conditions, when the radio is off, USW 5V is formed by FLT A+ running to D0822. Capacitor C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio circuits from discharging this capacitor.

There are eight analog-to-digital converter ports (A/D) on the uP. They are labeled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5 volts of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

The Pin VRH Pin is the high reference voltage for the A/D ports on the uP. If this voltage is lower than +5V the A/D reading is incorrect. The VRL signal is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings could be incorrect.


The µP determines the used keypad type and the control head ID by reading the levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic 1 to start executing correctly. The XIRQ and the IRQ pins should also be at a logic 1.

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes below 4.5 volts. This is used to reset the controller to prevent improper operation.


The host radio (master) communicates to the control head µP (slave) through its SBEP bus. This bus uses only line BUS+ for data transfer. The line is bi-directional meaning that either the radio or the control head µP can drive the line. The µP sends serial data via pin 50 and D0831 and it reads serial data via pin 47. Whenever the µP detects activity on the BUS+ line, it starts communication.

When the host radio needs to communicate to the control head uP, it sends data via line BUS+. Any transition on this line generates an interrupt and the µP starts communication. The host radio may send data like LED and back light status or it may request the control head ID or the keypad ID.

When the control head µP wants to communicate to the host radio, the uP brings the request line CH REQUEST to a logic 0 via µP pin 62. This switches on Q0823, which pulls line ON OFF CONTROL high through diode D0821. A low to high transition on this line informs the radio, that the control head requires service. The host radio then sends a data request message via BUS+ and the control head uP replies with the data it wanted to send. This data can be information like which key has been pressed or that the volume knob has been rotated.

The control head uP monitors all messages sent via BUS+, but ignores any data communication between the host radio and CPS or universal tuner.

2.10.5 Keypad Keys

The control head keypad is a 6-key design. All keys are configured as two analog lines read by µP pins 13 and 15. The voltage on the analog lines varies between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the voltage at both lines is 5 volts. The key configuration can be thought of as a matrix, where the two lines represent one row and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce the voltages on the analog lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both lines must be considered.

An additional pair of analog lines and A/D µP ports (PE 3 – 2) are available to support a keypad microphone, connected to the microphone connector J0811. Any microphone key press is processed the same way as a key press on a control head.

2.10.6 Status LED and Back Light Circuit

All indicator LED’s (red, yellow, green) are driven by current sources. To change the LED status the host radio sends a data message via SBEP bus to the control head µP. The control head µP determines the LED status from the received message and switches the LED’s on or off via port PB 7 – 0 and port PA4. The LED status is stored in the µP’s memory. The LED current is determined by the resistor at the emitter of the respective current source transistor.

The back light for the keypad is controlled by the host radio the same way as the indicator LED’s using uP port PA 5. The µP can switch the back light on and off under software control. The keypad back light current is drawn from the FLT A+ source and controlled by 2 current sources. The LED current is determined by the resistor at the emitter of the respective current source transistor.


2.10.7 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V, and two A/D converter inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the audio from the microphone to the radio’s controller via connector J0801-4. The Line HANDSET AUDIO (J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+, which is at supply voltage level, and +5V are used to supply any connected accessory like a microphone or a handset.

The two A/D converter inputs (J0811-9/10) are used for a microphone with keypad. A pressed key changes the dc voltage on both lines. The voltages depend on which key is pressed. The µP determines from the voltage on these lines which key is pressed and sends the information to the host radio.

Line PTT IRDEC (J0811-6) is used to key µP the radio’s transmitter. While the PTT button on a connected microphone is released, line PTT IRDEC is pulled to +5 volts level by R0843. Transistor Q0843 is switched on and causes a low at µP port PA2. When the PTT button is pressed, signal PTT IRDEC is pulled to ground level. This switches off Q0843 and the resulting high level at µP port PA2 informs the µP about the pressed PTT button. The µP informs the host radio about any status change on the PTT IRDEC line via SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode VR0821 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode loads the firmware into the radio’s flash memory.

The HOOK input (J0811-3) informs the µP when the microphone´s hang-up switch is engaged. Depending on the CPS programming, the µP may take actions like turning the audio PA on or off. While the hang µp switch is open, the line HOOK is pulled to +5 volts level by R0841. Transistor Q0841 is switched on and causes a low at µp port PA1. When the HOOK switch is closed, the HOOK signal is pulled to ground level. This switches off R0841and the resulting high level at µp port PA1 informs the µp about the closed hang µp switch. The µp informs the host radio about any status change on the HOOK line via SBEP bus.

2.10.8 Speaker

The control head contains a speaker for the receiver audio. The receiver audio signal from the differential audio output of the audio amplifier located on the radio’s controller, is fed via connector J0801-10, 11 to the speaker connector P0801, pins 1 and 2. The speaker is connected to the speaker connector P0801. The control head speaker can be disconnected only if an external speaker, connected on the accessory connector, is used.

2.10.9 Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the control head by diodes VR0811 VR00812 VR0816 - VR0817. The diodes limit any transient voltages. The associated capacitors provide radio frequency interference (RFI) protection.


2.11 Control Head (PRO5100, PRO7100, CDM1250, CDM1550)The control head contains the internal speaker, the on/off/volume knob, the microphone connector, several buttons to operate the radio, several indicator light emitting diodes (LEDs) to inform the user about the radio status, and a 14 character liquid crystal display (LCD) for alpha - numerical information, e.g. channel number or call address name. To control the LED’s and the LCD, and to communicate with the host radio the control head uses the Motorola 68HC11E9 µP.

2.11.1 Power Supplies

The power supply to the control head is taken from the host radio’s FLT A+ voltage via connector J0801 pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at battery level and is used for the LED’s, the back light and to power up the radio via on / off / volume knob. The stabilized +5 volt is used for the µP, display, display driver, and keypad buttons. The voltage USW 5V derived from the FLT A+ voltage and stabilized by the series combination of R0822, VR0822 is used to buffer the internal RAM of the µP (U0831). C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Dual diode D0822 prevents radio circuits from discharging this capacitor. When the supply voltage is applied to the radio, C0822 is charged via R0822 and D0822. To avoid that the µp enters the wrong mode when the radio is switched on while the voltage across C0822 is still too low, the regulated 5V charge C0822 via diode D0822.

2.11.2 Power On / Off

The on/off/volume knob when pressed switches the radio’s voltage regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital transistor Q0822 informs the control head’s µP about the pressed knob. The µP asserts pin 62 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts via Q0823 and D0821. The high line ON OFF CONTROL also informs the host radio, that the control head’s µP wants to send data via SBEP bus. When the radio returns a data request message, the µP informs the radio about the pressed knob. If the radio was switched off, the radio’s µp switches it on and vice versa. If the on/off/volume knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF CONTROL and sends a data request message. The control head µp will inform the radio about the pressed knob and the radio’s µp switches the radio off.

2.11.3 Microprocessor Circuit

The control head uses the Motorola 68HC11E9 microprocessor (µp) (U0831) to control the LED’s and the LCD and to communicate with the host radio. RAM and ROM are contained within the µP itself.

The µP generates it’s clock using the oscillator inside the µP along with a 8 MHz ceramic resonator (U0833) and R0920.

The µP’s RAM is always powered to maintain parameters such as the last operating mode. This is achieved by maintaining 5 volts at µp, pin 25. Under normal conditions, when the radio is off, USW 5V is formed by FLT A+ running to D0822. C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio circuits from discharging this capacitor.

There are eight analog-to-digital converter ports (A/D) on the µp. They are labeled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP. If this voltage is lower than +5V the A/D reading is incorrect. Likewise pin VRL is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings could be incorrect.


The µP determines the used keypad type and the control head ID by reading the levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic 1 for it to start executing correctly. The XIRQ and the IRQ pins should also be at a logic 1.

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes below 4.5 volts. This is used to reset the controller to prevent improper operation.


The host radio (master) communicates to the control head µP (slave) through its SBEP bus. This bus uses only line BUS+ for data transfer. The line is bi-directional, meaning that either the radio or the control head µP can drive the line. The µP sends serial data via pin 50 and D0831 and it reads serial data via pin 47. Whenever the µP detects activity on the BUS+ line, it starts communication.

When the host radio needs to communicate to the control head µP, it sends data via line BUS+. Any transition on this line generates an interrupt and the µP starts communication. The host radio may send data like display information, LED and back light status or it may request the control head ID or the keypad ID.

When the control head µP wants to communicate to the host radio, the µP brings request line CH REQUEST to a logic 0 via µP, pin 62. This switches on Q0823, which pulls line ON OFF CONTROL high through diode D0821. A low to high transition on this line informs the radio, that the control head requires service. The host radio then sends a data request message via BUS+ and the control head µP replies with the data it wanted to send. This data can be information such as a key is pressed or the volume knob rotated.

The control head µP monitors all messages sent via BUS+, but ignores any data communication between host radio and CPS or Universal Tuner.

2.11.5 Keypad Keys

The control head keypad is a 6-key keypad (Model B) or a 10- key keypad (model C). All keys are configured as two analog lines read by µP, pins 13 and 15. The voltage on the analog lines varies between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the voltage at both lines is 5 volts. The key configuration can be thought of as a matrix, where the two lines represent one row and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce the voltages on the analog lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both lines must be considered.

An additional pair of analog lines and A/D µP ports (PE 3 – 2) is available to support a keypad microphone, connected to the microphone connector J0811. Any microphone key press is processed the same way as a key press on the control head.

2.11.6 Status LED and Back Light Circuit

All the indicator LED’s (red, yellow, green) are driven by current sources. To change the LED status the host radio sends a data message via SBEP bus to the control head µP. The control head µP determines the LED status from the received message and switches the LED’s on or off via port PB 7 – 0 and port PA4. The LED status is stored in the µP’s memory. The LED current is determined by the resistor at the emitter of the respective current source transistor.

The back light for the LCD and the keypad is controlled by the host radio the same way as the indicator LED’s using µP port PA 5. This port is a Pulse Width Modulator (PWM) output. The output signal charges capacitor C0843 through R0847. By changing the pulse width under software control, the dc voltage of C0843 and thereby, the brightness of the back light can be changed in four steps.


The keypad back light current is drawn from the FLT A+ source and controlled by transistor Q0933. The current flowing through the LED’s cause a proportional voltage drop across the parallel resistors R0947, R0948. This voltage drop is amplified by the op-amp U0931-2. U0931-2 and Q0934 form a differential amplifier. The voltage difference between the base of Q0934 and the output of U0931-2 determines the current from the base of the LED control transistor Q0933 and in turn the brightness of the LED’s. The µP controls the LED’s by changing the dc level at the base of Q0934. If the base of Q0934 is at ground level, Q0934 is switched off and no current flows through Q0933 and the LED’s. If the base voltage of Q0934 rises a current flows through Q0934 and in turn through Q0933 causing the LED’s to turn on and a rising voltage drop across R0947, R0948. The rising voltage causes the output of the op-amp to rise and to reduce the base to emitter voltage of Q0934. This decreases the current of Q0933 until the loop has settled.

2.11.7 Liquid Crystal Display (LCD)

The LCD H0971 uses the display driver U0971. The display is a single-layer super-twist pneumatic (STN) LCD display. It has 14 characters with a 5*8 dot matrix for displaying alpha - numerical information and a line with 21 pre - defined icons above the dot matrix

The driver contains a data interface to the µP, an LCD segment driver, an LCD power circuit, an oscillator, data RAM and control logic. At power up the driver’s control logic is reset by a logic 0 at input SR2 (U0971-15). The driver’s internal oscillator is set to about 20 kHz and can be measured at pin 22. The driver’s µP interface is configured to accept 8 bit parallel data input (U0971-D0-D7) from the control head µP (U0831 port PC0-PC7).

To write data to the driver’s RAM the µP sets chip select (U0971-20) to logic 0 via U0831-11, RD (U0971-18) to logic 1 via (U0831-10) and WR (U0971-17) to logic 0 via U0831-9. With input A0 (U0971-21) set to logic 0 via U0831-12 the µP writes control data to the driver. Control data includes the RAM start address for the following display data. With input A0 set to logic 1 the µP then writes the display data to the display RAM. When data transfer is complete the µP terminates the chip select, RD, and WD activities.

The display driver’s power circuit provides the voltage supply for the display. This circuit consists of a voltage multiplier, voltage regulator and a voltage follower. The external capacitors C0971 - C0973 configure the multiplier to double the supply voltage. In this configuration the multiplier output VOUT (U0971-8) supplies a voltage of -5V (2* -5V below VDD). The multiplied voltage VOUT is sent to the internal voltage regulator. To set the voltage level of the regulator output V5 (U0971-5) this voltage is divided by the resistors R0973 and R0974 and fed back to the reference input VR (U0971-6). In addition the regulator output voltage V5 can be controlled electronically by a control command sent to the driver. With the used configuration the voltage V5 is about –2V. The voltage V5 is resistively divided by the driver’s voltage follower to provide the voltages V1 - V4. These voltages are needed for driving the liquid crystals. The level of V5 can be measured by one of the µP’s analog-to-digital converters (U0831-20) via resistive divider R0975, R0976. To stabilize the display brightness over a large temperature range the µP measures the temperature via analog-to-digital converter (U0831-18) using temperature sensor U0834. Dependent on the measured temperature the µP adjusts the driver output voltage V5, and in turn the display brightness, via parallel interface.

2.11.8 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V and 2 A/D converter inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the audio from the microphone to the radio’s controller via connector J0801-4. Line HANDSET AUDIO (J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+, which is at supply voltage level, and +5V are used to supply any connected accessory like a microphone or a handset.


The two A/D converter inputs (J0811-9/10) are used as a microphone with keypad. A pressed key changes the dc voltage on both lines. The voltages depend on which key is pressed. The µP determines, from the voltage on these lines, which key is pressed and sends this information to the host radio.

Line PTT IRDEC (J0811-6) is used to key up the radio’s transmitter. While the PTT button on a connected microphone is released, line PTT IRDEC line is pulled to a +5 volts level by R0843. Transistor Q0843 is then switched on causing a low at µP port PA2. When the PTT button is pressed, signal PTT IRDEC is pulled to ground level. This switches off Q0843 and the resulting high level at µP port PA2 informs the µP about the pressed PTT button. The µP informs the host radio about any status change on the PTT IRDEC line via the SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode VR0821 pulling the level on the line ON OFF CONTROL to FLT A+ level. This switches on the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware into the radio’s flash memory.

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0841. Transistor Q0841 is switched on causing a low at µP port PA1. When the HOOK switch is closed, signal HOOK is pulled to ground level. This switches off R0841 and the resulting high level at µP port PA1 informs the µP about the closed hang up switch. The µP informs the host radio about any status change on the HOOK line via SBEP bus.

2.11.9 Speaker

The control head contains a speaker for the receiver audio. The receiver audio signal from the differential audio output of the audio amplifier located on the radio’s controller is fed via connector J0801-10, -11 to the speaker connector P0801, pins 1 and 2. The speaker is connected to the speaker connector P0801. The control head speaker can only be disconnected if an external speaker, connected on the accessory connector, is used.

2.11.10Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the control head by diodes VR0811 VR00812 and VR0816 - VR0817. The diodes limit any transient voltages. The associated capacitors provide radio frequency interference (RFI) protection.

3-1

Chapter 3

Maintenance

3.1 IntroductionThis chapter of the manual describes:

n Preventive maintenance

n Safe handling of CMOS and LDMOS devices

n Repair procedures and techniques

3.2 Preventive MaintenanceThe radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended.

3.2.1 Inspection

Check that the external surfaces of the radio are clean, and that all external controls and switches are functional. It is not recommended to inspect the interior electronic circuitry.

3.2.2 Cleaning

The following procedures describe the recommended cleaning agents and the methods to be used when cleaning the external and internal surfaces of the radio. External surfaces include the front cover, housing assembly, and battery case. These surfaces should be cleaned whenever a periodic visual inspection reveals the presence of smudges, grease, and/or grime.

The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild dishwashing detergent in water. The only factory recommended liquid for cleaning the printed circuit boards and their components is isopropyl alcohol (70% by volume).

CAUTION: The effects of certain chemicals and their vapors can have harmful results on certain plas-tics. Aerosol sprays, tuner cleaners, and other chemicals should be avoided.

Cleaning External Plastic Surfaces

The detergent-water solution should be applied sparingly with a stiff, non-metallic, short-bristled brush to work all loose dirt away from the radio. A soft, absorbent, lintless cloth or tissue should be used to remove the solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks, or crevices.

Cleaning Internal Circuit Boards and Components

Isopropyl alcohol may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the dislodged material out and away from the inside of the radio. Make sure that controls or tunable components are

NOTE Internal surfaces should be cleaned only when the radio is disassembled forservicing or repair.

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3-2 Maintenance

not soaked with alcohol. Do not use high-pressure air to hasten the drying process since this could cause the liquid to collect in unwanted places. Upon completion of the cleaning process, use a soft, absorbent, lintless cloth to dry the area. Do not brush or apply any isopropyl alcohol to the frame, front cover, or back cover.

3.3 Safe Handling of CMOS and LDMOSComplementary metal-oxide semiconductor (CMOS) devices are used in this family of radios. CMOS characteristics make them susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent device damage during disassembly, troubleshooting, and repair.

Handling precautions are mandatory for CMOS circuits and are especially important in low humidity conditions. DO NOT attempt to disassemble the radio without first referring to the CMOS CAUTION paragraph in the Disassembly and Reassembly section of the manual.

CAUTION: This radio contains static-sensitive devices. Do not open the radio unless you are properly grounded. Take the following precautions when working on this unit:

n Store and transport all CMOS devices in conductive material so that all exposed leads are shorted together. Do not insert CMOS devices into conventional plastic “snow” trays used for storage and transportation of other semiconductor devices.

n Ground the working surface of the service bench to protect the CMOS device. We recom-mend using the Motorola Static Protection Assembly (part number 0180386A82), which includes a wrist strap, two ground cords, a table mat, and a floor mat.

n Wear a conductive wrist strap in series with a 100k resistor to ground. (Replacement wrist straps that connect to the bench top covering are Motorola part number RSX-4015.)

n Do not wear nylon clothing while handling CMOS devices.

n Do not insert or remove CMOS devices with power applied. Check all power supplies used for testing CMOS devices to be certain that there are no voltage transients present.

n When straightening CMOS pins, provide ground straps for the apparatus used.

n When soldering, use a grounded soldering iron.

n If at all possible, handle CMOS devices by the package and not by the leads. Prior to touching the unit, touch an electrical ground to remove any static charge that you may have accumu-lated. The package and substrate may be electrically common. If so, the reaction of a dis-charge to the case would cause the same damage as touching the leads.

3.4 General Repair Procedures and TechniquesParts Replacement and Substitution

When damaged parts are replaced, identical parts should be used. If the identical replacement component is not locally available, check the parts list for the proper Motorola part number and order

the component from the nearest Motorola Communications parts center listed in the Piece Parts Availability section of this manual (See Chapter 1). You also need to review Motorola’s Rework and Repair Technical Reference manual, P/N 6880309G53, which can be ordered from AAD at 1-800-422-4210.

Rigid Circuit Boards

The family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not accessible, some special considerations are required when soldering and unsoldering components.

NOTE Always use a fresh supply of alcohol and a clean container to prevent contaminationby dissolved material (from previous usage).

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Maintenance 3-3

The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, care should be exercised to avoid pulling the plated circuit out of the hole.

When soldering near the 20-pin and 40-pin connectors:

n Avoid accidentally getting solder in the connector.

n Be careful not to form solder bridges between the connector pins.

n Closely examine your work for shorts due to solder bridges.

n Do not exceed 210 degrees C when reworking boards.

n Do not exceed 5 degrees temperature ramp rate.

Flexible Circuits

The flexible circuits are made from a different material than the rigid boards and different techniques must be used when soldering. Excessive prolonged heat on the flexible circuit can damage the material. Avoid excessive heat and excessive bending.

For parts replacement, use the ST-1087 R1319A Temperature-Controlled Solder Station with a 600-700 degree tip for OMPAC (BGA) CSP, micro BGA and connectors. Use digital tweezers for all other component. Use small diameter solder such as ST-633. The smaller size solder will melt faster and require less heat to be applied to the circuit.

To replace a component on a flexible circuit:

1. Grasp the edge of the flexible circuit with seizers (hemostats) near the part to be removed.

2. Pull gently.

3. Apply the tip of the soldering iron to the component connections while pulling with the seizers.

Chip Components

Use either the RLN-4062 R1319A Chipmaster Hot-Air Repair Station or the Motorola 0180381B45 Repair Station R1364a digital heated tweezer system for chip component replacement. When using the 0180381B45 Repair Station, select the TJ-65 mini-thermojet hand piece. On either unit, adjust the temperature control to 700 degrees F. (370 degrees C), and adjust the airflow to a minimum setting. Airflow can vary due to component density.

To remove a chip component:

1. Use a hot-air hand piece and position the nozzle of hand piece R1319A approximately 1/8" (0.3 cm) above the component to be removed.

2. Begin applying the hot air. Once the solder reflows, remove the component using the pair of twee-zers contained in the SMD tool kit shipped with the R1319A.

3. Using a solder wick (Motorola P/N 6680334B25) and a soldering iron or a power desoldering sta-tion, remove the excess solder from the pads.

To replace a chip component using a soldering iron:

1. Select the appropriate micro-tipped soldering iron and apply fresh solder paste (Motorola P/N 6680333E72) to one of the solder pads.

2. Using a pair of tweezers, position the new chip component in place while heating the fresh solder.

3. Once solder wicks onto the new component, remove the heat from the solder.

4. Heat the remaining pad with the soldering iron and apply solder until it wicks to the component. If necessary, touch up the first side. All solder joints should be smooth and shiny.

NOTE Do not attempt to puddle out components. Prolonged application of heat may dam-age the flexible circuit.

3-4 Maintenance

To replace a chip component using hot air:

1. Use the hot-air hand piece and reflow the solder on the solder pads to smooth it. For components having two or three solder connections, apply a dot of NO-CLEAN solder paste to the lead joints before removal.

2. Apply a drop of solder paste flux to each pad. For dual leaded devices such as SOICs, TSOPs, and quad leaded devices less than 20 leads, such as PLCCs and QFPs, apply a bead of solder paste.

3. Using a pair of tweezers, position the new component in place. As component is removed, it will carry away excess solder, leaving the ideal amount on the pads for their surface area.

4. Position the hot-air hand piece approximately 1/8” (0.3 cm) above the component and begin applying heat. For an extensive discussion of chip component rework and other technical proce-dures, order manual 6880309G53 from Motorola AAD.

5. Once the solder wicks to the component, remove the heat and inspect the repair. All joints should be smooth and shiny.

Shields

Removing and replacing shields will be done with the R-1070 R1319A station with the temperature control set to approximately 415°F (215°C) [445°F (230°C) maximum].

To remove the shield:

1. Place the circuit board in the R-1070’s holder.

2. Select the proper heat focus head and attach it to the heater chimney.

3. Add paste flux (Motorola P/N 6680333E71) around the base of the shield.

4. Position the shield under the heat-focus head.

5. Lower the vacuum tip and attach it to the shield by turning on the vacuum pump.

6. Lower the focus head until it is approximately 1/8” (0.3 cm) above the shield.

7. Turn on the heater and wait until the shield lifts off the circuit board.

8. Once the shield is off, turn off the heat, grab the part with a pair of tweezers, and turn off the vac-uum pump.

9. Remove the circuit board from the R-1070’s circuit board holder.

To replace the shield:

1. Add solder to the shield if necessary, using a micro-tipped soldering iron.

2. Rub the soldering iron tip along the edge of the shield to smooth out any excess solder. Use solder wick and a soldering iron to remove excess solder from the solder pads on the circuit board.

3. Place the circuit board back in the R1070’s R1319A circuit board holder.

4. Place the shield on the circuit board using a pair of tweezers.

5. Place a small bead of no-clean flux (Motorola P/N 6680333E71) around the tinned surface.

6. Position the heat-focus head over the shield and lower it to approximately 1/8” (0.3 cm) above the shield.

7. Turn on the heater and wait for the solder to reflow. The R1319A will record removal time, add 30 to 40 seconds for replacement.

8. Once complete, turn off the heat, raise the heat-focus head and wait approximately one minute for the part to cool.

9. Remove the circuit board and inspect the repair. No cleaning should be necessary.

Maintenance 3-5

3.5 Recommended Test ToolsTable 3-1 lists the recommended tools used for maintaining this family of radios. These tools are also available from Motorola.

Table 3-1. Recommended Test Tools

Motorola PartNumber

Description Application

RSX4043 Torx Driver Tighten and remove chassis screws

6680387A70 T-6 Torx Bit Removable Torx driver bit

WADN4055A6604008K016604008K02

Portable soldering station0.4mm replacement tip0.8mm replacement tip

Digitally controlled soldering IronFor WADN4055A soldering Iron

0180386A78 Illuminated magnifying glass with lens attachment.

0180302E51 Illuminated Magnification System Illuminated and magnification of components

0180386A82

6684253C726680384A981010041A86

0180303E45

Anti-static grounding kit

Straight proberBrushSolder (RMA type), 63/37, 0.5mm diameter1 lb. spoolSMD tool kit (Include with R1319A)

Used during all radio assembly and disassemblyprocedures

R-1321A R1319A Shields andsurface-mountedcomponent and ICremoval/rework station(order all heat-focus headsseparately)

Removal and assembly of surface-mountedintegrated circuits and shields. Includes five noz-zles

6680334B496680334B506680334B516680334B526680334B536680370B516680370B546680370B576680370B586680371B156680371B746680332E456680332E46

0.410” x 0.410”0.430” x 0.430”0.492” x 0.492”0.572” x 0.572”0.670” x 0.790”0.475” x 0.475”0.710” x 0.710”0.245” x 0.245”0.340” x 0.340”0.460” x 0.560”0.470” x 0.570”0.591” x 0.315”0.862” x 0.350”

Heat-focus heads for R-1319A work station

R1364A Digital Heated Tweezer System Chip component removal

R1427A Board Preheater Reduces heatsink on multi-level boards

6680309B53 Rework Procedures Manual Contains Application notes, procedures, and tech-nical references regarding rework equipment

3-6 Maintenance

3.6 Transmitter Troubleshooting Chart

No

Is Q4441 OK ?

YesIs drive from VCO >+4dBm?

No

Is voltage drop across R4497 >4.5V ?

No

Check Q4431 gate(open)and drain resistances (11kohm)

NoCheck Q4421 gate(open)and drain resistances (11kohm)

No

CheckPCIC_MOSBIAS_1

No

No

ChangeQ4573

START

No power

Is Vctrlthere?

Is Q4573 OK?

Check voltageon pin 4 U4501

Check voltageon pin 5 U4501

Check R4422-5and go back to top

TroubleshootASFIC

Check voltageon TP4531

ChangePCIC

Check R4409 &

R4473 and go backto top

CheckMOSBIAS_2

CheckASFIC

Are D4471 &D4472 OK?

ChangeD4471 &D4472

NoNoNoNo No

Yes

Yes

YesYes

Yes

YesYes

Yes

No

No CheckPCIC

Yes

Change Q4421

Change Q4431

Yes

Change U4401

YesDo visual checkon all components

No

Change Q4441

Troubleshoot VCO

Maintenance 3-7

3.7 Receiver Troubleshooting Chart

Bad SINADBad 20dB Quieting

No Recovered Audio

START

Audio at pin 8 of U3101?

Check Controller (in the case of no audio).Or else go to “B”

Yes

No

Spray or inject 44.85MHz into XTAL Filter FL3101.

Audio heard?BYes

No

Check 2nd LO (44.395MHz) at C3135.

LO present?BYes

Check volt-ages on

U3101. OK?

Biasing OK?

No

No

A

Yes

Check Q3102 bias for faults.

Replace Q3102.

Go to B

Yes

No

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Check cir-cuitry around U3101. Replace U3101 if defect.

Check circuitry around Y3101. Replace Y3101 if defect.

3-8 Maintenance

IF Signal at C3101?

No

RF Signal at T4051?

RF Signal at C4015?

No

RF Signal at C4009?

No

RF Signal at C4025?

No or

Check harmonic filters L4491-L4493, C4492 and ant.switch D4471,D4472,L4472.

Check filter between C4025 & C4009. Check tuning voltage at R4060.

Inject RF into J4401

Is tuning volt-age OK?

No

Yes

Check RF amp (Q4003) Stage.

Check filter between C4015 & T4051.

Yes

Check T4051, T4052, D4051, R4052, L4008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes

Trace IF signal from C3101 to

Q3101. Check for bad XTAL filter.

No

Yes IF signal at Q3102 collec-

tor?

Before replacing U3101, check

U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?

Check Supply Voltage cir-cuitry. Check U0611 and

U0641.

No

No

No

Check U4501.

Check varactor filter.

No

Yes

Yes

Yes

A

A

B

weak RF

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)

Maintenance 3-9

3.8 Synthesizer Troubleshooting Chart

5V at pin 6 of

D4201

Is informationfrom µP U0101

correct?

Is U4201 Pin 47at = 13VDC

Is U4301 Pin 19<40 mVDC in RX &

>4.5 VDC in TX? (at VCO section)

Start

Visual check of the Board OK?

CorrectProblem

Check 5VRegulatorU4211

+5V at U4201Pin’s

13 & 30?

Is 16.8MHzSignal at

U4201 Pin 19?

Check Y4261, C4261, C4262, C4263, D4261

& R4261

Are signalsat Pin’s 14 &15 of U4201?

Check R4201

Check C4381

Is U4201 pin 2 >4.5 VDC in Rx & <40 mVDC in Rx

Replace U4201

RemoveShorts

Is there a shortbetween Pin 47 and

Pins 14 & 15 ofU4201?

Replace orresolder

necessarycomponents

Is RF level atU4201 Pin 32 -12 < x <-25

dBm?

Are R4221,R4222,R4223,C4221,C4222,

& C4223 OK?

Replace U4201

If L4225, C4229 & C4227are OK, then see VCOtroubleshooting chart

Are Waveformsat Pins 14 & 15

triangular?

Do Pins 7,8 & 9of U4201 togglewhen channel is

changed?

Check programminglines between U0101

and U4201 Pins 7,8 & 9

Replace U4201

Check uP U0101Troubleshooting

Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YES

YESNO

NO

NO

NO

YES

NO

YES

YES

Check D4201, C4202, C4203, & C4206

5V at U4201 pins 5, 20, 34 &

36

Check 5V Regulator

U4211

Is 16.8MHz signal at

U4201 pin 23?

Replace U4201

YES

NO

NO

YES

NO

YES

Troubleshooting Flow Chart for UHFMobile Synthesizer Section

3-10 Maintenance

This page intentionally left blank

Maintenance 3-11

3.9 VCO Troubleshooting Chartl

RX VCO

PARTS ASSOCIATED THOSE PINS ARE

REPLACE U4301

D L4361 ARE ACE U4301

WER OK BUT MODULATION

IO = 180 mVRMST “-” SIDE OF

C4325

4.5VDCAT CR4321

4321 AND R4321ARE OK, THENPLACE CR4321

REPLACER4322

REPLACE C4325

NO

NO

YES

YES

TX VCO
LOW OR NO RF SIGNAL AT TP4003
VISUAL CHECKOF BOARD

OK?

4.5V DC ATU4301 PIN 14&18

35mV DC ATU4301 PIN 19

ARE Q4301BASE AT 2.4V

EMITTER AT 1.7VCOLLECTOR AT 4.5V

CORRECTPROBLEM

NO

YES

MAKE SURE SYNTHESIZER ISWORKING CORRECTLY ANDRUNNER BETWEEN U4201 PIN

28 AND U4301 PIN 14&18 IS OK.

CHECK RUNNERBETWEEN U4201 PIN 2

AND U4301 PIN 19

REPLACE Q4301

IS RF AVAILABLE AT BASE OF Q4332

IF ALL PARTS FROM U4301PIN 8 TO BASE OF Q4332 ARE

OK, REPLACE U4301

ARE Q4332BASE AT 0.7V

EMITTER AT 110mVCOLLECTOR AT 4.5V

IF ALL PARTS ASSOCIATEDWITH THE PINS ARE OK, REPLACE Q4332

IF ALL PARTS FROM COLLECTOROF Q4332 TO TP4003 ARE

OK, REPLACE Q4332

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

LOW OR NO RF SIGNALAT INPUT TO PA

VISUAL CHECKOF BOARD

OK?

4.5V DC ATU251 PIN 14&18

4.8V DC ATU4301 PIN 19

ARE U251 PINS13 AT 4.4V

15 AT 1.1V10 AT 4.5V16 AT 1.9V

IS RF AVAILABLE AT TP4534

IF ALL WITHOK,

IF R4361 ANOK, REPL

IF ALL PARTS FROM TP4534

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

PONO

AUDA

IF C

RE

TO U4401 PIN 16 ARE OK, REPLACE U4301

3-12 Maintenance


4-1

Chapter 4

Schematic Diagrams, Overlays, and Parts Lists

4.1 IntroductionThis chapter provides schematic diagrams, overlays, and parts lists for the radio circuit boards and interface connections.

4.1.1 Notes For All Schematics and Circuit Boards* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.

1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads (pF) or microfarads (µF).

2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multime-ter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with the voltage probe to prevent circuit loading.

3. Reference Designators are assigned in the following manner:

800-900 = Control Heads

100/200/400/500/600 Series = Controller

100/200/400/500/600/3000/4000 Series = UHF Transmitter

3000 Series = VHF Transmitter

4. Interconnect Tie Point Legend:

UNSWB+ = Unswitched Battery Voltage (12V)

SWB+ = Switched Battery Voltage (12V)

R5 = Receiver Five Volts

CLK = Clock

Vdda = Regulated 5 Volts (for analog)

Vddd = Regulated 5 Volts (for digital)

CSX = Chip Select Line (not for LVZIF)

SYN = Synthesizer

DACRX = Digital to Analog Voltage (For Receiver Front End Filter)

VSF = Voltage Super Filtered (5 volts)

VR = Voltage Regulator

4-2 Introduction

LAYER 1 (L1)

LAYER 2 (L2)LAYER 3 (L3)LAYER 4 (L4)

LAYER 5 (L5)LAYER 6 (L6)

INNER LAYERS

SIDE 1

SIDE 2

6-LAYER CIRCUIT

COPPER STEPS IN PROPER LAYER SEQUENCE

BOARD DETAIL VIEWING

4-3

D0871

D0872

D0879

D0881

D0884

S0861

ZWG0130114

Figure 4-1. PRO3100/CDM750 Control Head Top Overlay

D0873

D0874D0875 D0876

D0877 D0878

D0885

D0886

D0887D0888

2

3579

8 6 4 10

J0811

JU0852

JU0853

JU0854

4

12

3

5R0823

S0862S0863S0864

S0865S0866

1

4-4

0810

C0811

C08

13

C08

15

C0816 C0817C0818

C0819

C0821

C0822

C0824

C0843

0821

D0822

Q0821

Q0822

R0810

R0811

R08

12

R08

13

R08

14

R08

15

R08

16

R0821

R0822

R0824

1 R0847

R0871

R0874

TP0835

0811

VR0816

VR0817

VR0821

VR0822

VR0823

ZWG0130113

Figu

0

C0802

C0803

C0804

C0805

C0806

C0808

C0809

C

C0823

C0831

C0832

C0833

D

D0831

12

J0801

1

2P0801

Q0823

Q0841

Q0843

Q0871

Q0872Q0873

Q0874

Q0875Q0876

Q0877Q0878

Q0879

Q0881

Q0885

R0825

R0831

R0832

R0833

R0834

R0835

R0836

R0837 R0838

R0839

R084

R0842R0843 R0844

R0845

R0849

R0852

R0853

R0854

R0861 R0862

R0864

R0866 R0867

R0872

R0873

R0875R0876

R0877R0878

R0879

R0880

R0881

R0885

TP0831

TP0832

TP0833

TP0834

TP0836

TP0837

TP0838

149

1733

U0831

1

45

8

U0832

3

U0833

VR

164

48

3216

re 4-2. PRO3100/CDM750 Control Head Bottom Overlay

4-5

KEYPAD ID

CONTROL HEAD ID

28RA_AS30B_RW*

7_AD7 42

7_A15 5

0_AD0 341_AD1 362_AD2 373_AD3 384_AD4 39

405_AD56_AD6 41

561_OC1

B0_A8 12

B1_A9 112_A10 10

3_A11 94_A12 8

75_A136_A14 6

1A0_IC364A1_IC263A2_IC1625_OC1594_OC1583_OC1572_OC1

NC

10N

C5 JU0853

12

10

6

1 0

0

C0804470pF

2

7

432

R084410K

P0801-2

54

R084947K

P0801-1NU82pFC0809

100KR0852

R084247K

4.7K

6 1

7

R0845

C0806470pF

NU

3

R084110K

5

4

82pFC0805

Q0841

3 2

1

Q0843

NU

C0802470pF470pF

7

C0803

JU0852

12

06

2

JU0854

12

10KR0843

5

100K100KR0854R0853

8

ON_OFF_SENSE

5V

HOOK

5V

CH_KP_ID(0:7)

LED_CNTRL(0:8)

CH_REQUEST

5V

5V

PTT_IRDEC

SCI_TX

BL_GREEN

ON_OFF_CONTROL

FLT_A+

MIC

BUS+

HANDSET_AUDIO

5V

ZWG0130239

Radio Interface

er Section

Figure 4-3. PRO3100/CDM750 Control Head Schematic Diagram, Sheet 1

10

CONTROLHEAD

GM300

SCI_RX

RESET

BOOT_VPP

BOOT_MODE

WARIS

HANDSET_AUDIO

1

CONTROLLER

MIC

GROUND

SCI_TX

EXT_KP_ROW

EXT_KP_COL

FLT_A+

456

BUS+

23 5V

HOOK

45 XIRQ

33 XTAL

J0811

PTT_IRDECODER

789

CONNECTOR

J0801

MICROPHONECONNECTOR

STSTR

55V

DD

22V

RH

21V

RL

23V

SS

1V

SS

224 49

VS

S3

PE1_AN115PE2_AN217PE3_AN319PE4_AN414

16 PE5_AN5PE6_AN618PE7_AN720

43 RESET

PC

PD0_RXD47PD1_TXD50PD2_MISO51

PD3_MOSI5253 PD4_SCK

PD5_SS*54

PE0_AN013

PB

PCPCPCPCPCPCPC

PA7_PA

PP

PBPBPBPBPB

60N

C9

PPP

PA3_OCPA4_OCPA5_OCPA6_OC

61

3N

C2

NC

34

NC

426 32

35N

C6

44N

C7

NC

848

U083129

CLK_E31 EXTAL

46 IRQ

27 MODA_LIR*25 MODB_VSTBY

NC

12

MC68HC711E9

J0811-5

100R0835

R08390NU

R0847

22

J0801-6

J0801-10

Q0823

NU

VR081133V

NU

C0818470pF470pF

C081682pF

J0811-8

C0817

J0801-7

2GND

CSTCC8.00MGU0833

1C1

3C2

J0801-11

J0801-8

0.1uFC0833

R083347K

J0811-4

J0811-3

R0831

J0811-2

1MEG

VR081620V

R0810

13KJ0811-10

J0811-9

J0801-9

J0801-14

2.2KR0832

TP08381

Q0821

J0811-6

C0810470pFNU

C0819470pF

NU

10KR0838R0834

270

R083733K

470pFC0808

J0801-4

51K

R0816

R0811

51K

C0815470pF

1

470pFC0811

10K

TP0831

1

R0836

TP0836

C0823.01uF

1

R082110K

J0801-13

TP0833

J0801-1

J0801-2

J0801-3

C0843

J0801-5

470pF470pF

C0813

1

TP08351

TP0834

C0824.01uFNU

1K

R0825

D0821

Q0822

D0831

J0811-7

J0801-12

VR081720V

TAB

TAB1

VA

R

C08222.2uF

R082350K

NEG

POS

R0824

4.7KC0821470pFNU

R082224K

5.6V5.6V

D0822

VR0822

C08320.1uF

J0811-1

C08313.3uF

1

NC5

RESET 1

TP0837

MC33064 NU

GND

4

INPUT2

NC13

NC25

NC3 6NC4 7

8

U0832MC33064

R0812

22

270

R081310

R0814

R0815

13K

VR08215.6V

5.6VVR0823

1

USW_5V

VOLUME

VOLUMEEXT_KP_ROWEXT_KP_COLINT_KP_ROWINT_KP_COL

USW_5V

5V

5V

5V

5VFLT_A+

BUS+

TP0832

CH_REQUEST

5V

5V

5V

HOOK

ON_OFF_SENSE

ON_OFF_CONTROL

5V

PTT_IRDEC

FLT_A+

FLT_A+

5V

5V

PTT_IRDEC

MIC

EXT_KP_ROW

EXT_KP_COL

SCI_TX

BUS+

FLT_A+

5V

5V

5V

5V

HANDSET_AUDIO

Microphone Interface

ControllON/OFF Section

4-6

LED3LED2 LED6LED4 LED5

Q0872Q0871

redD0876

redD0875

R0876R0875270270

Q0879Q0878

D0878yellow

D0879green

77

7

2

Q0873

D0887green

86

270

n

R0871

D0885green

greenD0888

n

n81

84

8

R0885270

1

Q0885

1 0

7

D0873red red

D0871 D0872red

R0873270

R0872270

Q0876Q0875

R0879270270

R0878

ZWG0130240

light

s LED

tion LED

Figu

green

0V/2V

0V/3V

1V/0V

LED1

F4 P2

F3 P1

F2

F1

F1 F2 F3 F4

P1 P2

LED1 LED2 LED3

1V/1V

0V/0V

0V/1V

LED4

LED6 LED5

S0864 S0863 S0862 S0861

S0866 S0865

KeypadLayout

red yellow

D0874red

51KR0861

43KR0864

R088022K D08

red

Q087

7

13KR0862

D08gree

gree

greeD08

D08

3

13K

R0867

4

R088270

P55

P66

P77

P88

Q0881

S0861

P11

P22

P33

4 P4

51K

7 P7

8 P8

R0866

1 P1

2 P2

3 P3

4 P4

5 P5

6 P6

P88

S0864

P11

P22

P33

4 P4P55

P66

P77

7 P7

8 P8

S0863

S0862

1 P1

2 P2

3 P3

4 P45 P5

6 P6 6 P6

P77

8 P8

1 P1

2 P2

3 P3

4 P45 P5

P55

P66

P77

P88

S0866

S0865

P11

P22

P33

P44

270R087

R0874270

Q0874

65

FLT_A+

LED_CNTRL(0:8)

BL_GREEN

FLT_A+

FLT_A+

LED_CNTRL(0:8)

5V

5V

INT_KP_COL

INT_KP_ROW

KeypadBack

Statu

Sunc

re 4-4. PRO3100/CDM750 Control Head Schematic Diagram, Sheet 2

4-7

T

CCCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDJJQQQQQQQQQQQQQQQ

Diode, ZenerDiode, 5.6VDiode, 5.6VDiode, 5.6V

Description
able 4-1. PRO3100/CDM750 Control Head Parts List
ReferenceDesignator

Motorola Part No. Description

0803 2113741F17 470pF0804 2113741F17 470pF0805 2113740F49 100pF0808 2113741F17 470pF0811 2113741F17 470pF0813 2113741F17 470pF0815 2113741F17 470pF0816 2113741F17 470pF0817 2113740F49 82pF0822 2311049A40 2.2uF0823 2113741F49 10nF0831 2311049A42 3.3uF0832 2113743E20 100nF0833 2113743E20 100nF0843 2113741F17 470pF0821 4813833C02 Dual Schottky0822 4813833C02 Dual Schottky0831 4880236E05 Schottky0871 4886171B01 LED, Red0872 4886171B01 LED, Red0873 4880479B01 LED, Red0874 4886171B01 LED, Red0875 4886171B01 LED, Red0876 4886171B01 LED, Red0877 4886171B01 LED, Red0878 4886171B03 LED, Yellow0879 4886171B04 LED, Green0881 4886171B04 LED, Green0884 4886171B04 LED, Green0885 4886171B04 LED, Green0886 4886171B04 LED, Green0887 4886171B04 LED, Green0888 4886171B04 LED, Green801 0902636Y02 12-Pin Connector811 2864287B01 10-Pin Jack0821 4805921T02 Transistor, Dual0822 4880048M01 Transistor, NPN0823 4805921T02 Transistor, Dual0841 4880048M01 Transistor, NPN0843 4880048M01 Transistor, NPN0871 4813824A10 Transistor, NPN0872 4813824A10 Transistor, NPN0873 4813824A10 Transistor, NPN0874 4813824A10 Transistor, NPN0875 4813824A10 Transistor, NPN0876 4813824A10 Transistor, NPN0877 4813824A10 Transistor, NPN0878 4813824A10 Transistor, NPN0879 4813824A10 Transistor, NPN0881 4813824A10 Transistor, NPN

Q0885 4813824A10 Transistor, NPNR0810 0662057A76 13K R0811 0662057A90 51K R0812 0662057A09 22 R0813 0662057A01 10R0814 0662057A35 270 R0815 0662057A76 13K R0816 0662057A90 51K R0821 0662057A73 10K R0822 0662057A82 24K R0823 1805911V01 Volume Pot R0824 0662057A65 4K R0825 0662057A49 1K R0831 0662057B22 1M R0832 0662057A57 2K R0833 0662057A89 47K R0834 0662057A35 270R0835 0662057A25 100R0836 0662057A73 10K R0837 0662057A85 33K R0838 0662057A73 10K R0841 0662057A73 10K R0842 0662057A89 47K R0843 0662057A73 10K R0844 0662057A73 10K R0845 0662057A65 4K R0847 0662057A09 22 R0849 0662057A89 47KR0852 0662057A97 100KR0853 0662057A97 100KR0854 0662057A97 100KR0861 0662057A90 51KR0862 0662057A76 13KR0864 0662057A88 43KR0866 0662057A90 51KR0867 0662057A76 13KR0871 0660076A35 270R0872 0660076A35 270R0873 0660076A35 270R0874 0660076A35 270R0875 0660076A35 270R0876 0660076A35 270R0877 0660076A35 270R0878 0660076A35 270R0879 0660076A35 270R0880 0662057A81 22KR0881 0662057A35 270R0885 0662057A35 270U0831 5113802A24 ICU0833 4886061B01 8 MHzVR0816 4805656W09 Diode, Zener

ReferenceDesignator


VR0817 4805656W09VR0821 4813830A15VR0822 4813830A15VR0823 4813830A15

ReferenceDesignator

MotorolaPart No.

4-8


4-9

D0937

D0941

D0942

D0945

D0946D0953

D0954

D0958

D0967

D0971

D0972

D0975

D0976D0983

D0984

D0988

40

80

S0908

S0910

30

70

ontrolhead B/CB04-P4 TOP SIDE

CHECKONE

O.K. AS IS

O.K. AS MARKED

( )

( )

ISS. REVISION RLSE.

CORRECTEDASMARKED

DATEENGINEERDATE PROGRAM DISK

RLSE.

DWG. NO.

E:

DATECHECKERDATE

Illustrator0/March/99

ZWG0130136

P4

ZWG0130136

Figure 4-5. PRO5100/PRO7100/CDM1250/CDM1550 Control Head Top Overlay

D0877D0879

D0880

D0931

D0932

D0933

D0934

D0935

D0936

D0938

D0939

D0940

D0943

D0944

D0947

D0948

D0949

D0950 D0951

D0952

D0955

D0956

D0957

D0961

D0962

D0963

D0964

D0965

D0966

D0968

D0969

D0970

D0973

D0974

D0977

D0978

D0979

D0980 D0981

D0982

D0985

D0986

D0987

41

H0971

2

3579

8 6 4 10

J0811

4

12

3

5R0823

S0852

S0853

S0854

S0901

S0902

S0903

S0904

S0905

S0906

S0907

S0909

U0834

1

1 10 20

6050

WARIS C8486155ILLUSTRATOR

LETTERING SIZREQUIRES:

EDITORRK 3

4-10

C0810

C0811

C08

12

C0813

C0815

C0816

C0817

C0818 C0819

C0821

C0822

C0823C0831

C0832

D08

21

D0822

Q08

21

Q08

22

Q08

23

Q08

41

Q0843

Q08

77

Q08

78

Q0879

R0810

R08

11

R0812R0813 R0814

R0815

R08

16

R08

17

R0821R0822

R0824

R0825

R0841

R0843

R0844R0845

R0847

8 R0849

R0877R0878

79

TP0831

TP0832

TP0833

TP0835

TP0837

TP0838

1

17

14

5 8

U0832 VR

0811

VR

0812

VR

0816

VR

0817

VR

0821

VR

0822

64

ZWG0130137

Figu

C0802

C0803

C0804

C0805

C0806

C0807

C0808

C0833

C0842

C0843

C0931

C0932

C0933

C0971

C0972

C0973

C0974C0975

C0976 C0977

C0978 C0979

C0980 C0981

C0982

C09

83

C0984

C0985

D0831

12

J0801

12

P0801

1

2

3

4 Q0931 Q0932

1

2

3

4 Q0933 Q0934

R0831

R0832

R0833

R0834

R0835

R0836

R0837

R0838R0842

R084

R0850R0851

R0852

R0853

R0854

R0855

R0856

R0857

R0858

R0859

R0860

R0861

R0862

R0863

R0864 R0865

R08

R0901

R0902R0903

R0904

R0905

R0906R0907

R0908 R0909

R0910

R0931

R0932

R0933 R0934R0935

R0936

R0937R0938

R0941 R0942

R0943

R0944 R0945

R0946R0947

R0948

R0972

R0973

R0974

R0975

R0976

R0977

R0978

TP0834TP0836

TP0971

TP0972

TP0973

TP0974TP0975

49

33

U0831

3U0833

14

58

U0931

128103102

6564

3839

U0971

1

1

re 4-6. PRO5100/PRO7100/CDM1250/CDM1550 Control Head Bottom Overlay

4-11

CONTROL HEAD ID

KEYPAD ID

OLLER

080270pFNU

2 1

R0862

R0858

100K

47K

Q0843

45

8

2

10

100K

56

R0861

7

R084768K

STRA_AS 28

STRB_RW* 30

41PC6_AD6 42PC7_AD7

6PB6_A14 5PB7_A15

34PC0_AD0 36PC1_AD1 37PC2_AD2 38PC3_AD3 39PC4_AD4 40PC5_AD5

PA6_OC2_OC1 57

PA7_PA1_OC1 56

12PB0_A8 11PB1_A9 10PB2_A10 9PB3_A11 8PB4_A12 7PB5_A13

NC

848

NC

960

PA0_IC3 1

PA1_IC2 64PA2_IC1 63

PA3_OC5_OC1 62

PA4_OC4_OC1 59

PA5_OC3_OC1 58

NC

12

NC

1061

NC

23

NC

34

NC

426

NC

532

NC

635

NC

744

711E9

4

31MC68HC711E9

6

1

6

3

2.2uF

0

5

2

C0843

47KR0842

3

3

R084947K

47KR0855 4.7K

R0863

R0850

NU47K

0

R085647K

2

NU47KR0853

0

R08454.7K

C08422.2uF

NU

Q0879

D0880

Q0878

yellowD0877red

Q0877

R084110K 10K

R0843

68KNU

R0848

67

R0879

5

270R0878270

R084410K

R0865

100K

4.7K

4

8R0860

5

7

NU47K

R0851

7 4

1

D0879green

R0857

Q0841

NU47K

NU47KR0854

6

47KR0859

270R0877

R0852

7

47K

12

12

S0854

2

S0853SWITCHS0852

1

3

R08644.7K

HOOK

5V

CH_REQUEST

ON_OFF_SENSE

BL_REDBL_GREEN

5V

5V

PTT_IRDEC

SCI_TX

5V

HANDSET_AUDIO

BUS+

MIC

FLT_A+

ON_OFF_CONTROL

FLT_A+

LED_CNTRL(0:8)

LED_CNTRL(0:8)

CH_KP_ID(0:7)

5V

CONTROLHEAD PRO5100/CDM1250 NU NU NU USED USED USED USED NU

CONTROLHEAD PRO7100/CDM1550 NU NU USED NU USED USED NU USED

R0850 R0851 R0852 R0853 R0855 R0856 R0857 R0858

Status LED

Controller Section

Figure 4-7. PRO5100/PRO7100/CDM1250/CDM1550 Control Head Schematic Diagram

RESET

TEMP_SENSE

CONTR

1

J0811

3

VPP

67

HANDSET_AUDIO

ANALOG_INPUT_3

5V

HOOK

89 10

WARISGM300

MICROPHONE

BOOT_MODE

SCI_RX

SCI_TX

FLT_A+5V

GND

MIC

PTT_IRDECODER

CONNECTOR

BUS+

CONTROLHEADCONNECTOR

GROUND

ANALOG_INPUT_2

FLT_A+

2

J0801

45

C4470pF

C0803C0807470pF

100R0835

D0821

J0801-1

82pFNU

3

C080

2

C0823.01uF

2

R0824

4.7K

J0801-6

470pFNU

C0810

33V

VR081133VNU

470pF

470pFNU

C0811

NU

C0818 C0819470pF

C0816470pF

C081782pF

TP08371

TP0838

P0801-2

TP0832

P0801-1

TP0835

J0811-1

J0801-2

4

470pF

470pF

C0813

VSS3

49

XIRQ45

XTAL33

C0815

RESET

VDD

55VR

H22

VRL

21

VSS1

23

VSS2

24

13 PE0_AN015 PE1_AN117 PE2_AN219 PE3_AN314 PE4_AN416 PE5_AN518 PE6_AN620 PE7_AN7

43

47 PD0_RXD50 PD1_TXD51 PD2_MISO52 PD3_MOSI53 PD4_SCK54 PD5_SS*

MC68HC

CLK_E29

EXTAL31

IRQ46

MODA_LIR*27

MODB_VSTBY25

U08

LM50

U0834

GND3

POS

1

VOUT2

LM50

R082110K

R0834270

C08320.1uF

C0833

0.1uFNU

10V

10VVR0821

TP0833

?X

TP0831

1

C0804470pF

TP0836

R082222K

TP0834

C0806470pF

NU

5.6V5.6V

VR0812

82pFC0805

D0822

J0811-5

J0811-4

J0811-3

2.2uF

J0811-2

C0822

R083810K

R083610K

VR081620V

VR081720V

J0801-11

Q0822

51KR0811

1KR0825

J0811-7

Q0823

C0821470pFNU

4

1

C08313.3uF

U0832

GN

D4

INPUT2

NC13

NC25

NC3 6NC4 7

8NC5

RESET

MC33064MC33064

R0812 22

10R0813

5.6V5.6VVR0822

D0831

3

1

R083347K

R08322.2K

R081651K

J0811-8

R08311MEG

50K

NEG

POS TAB

TAB1

VAR

R0823

J0801-9

J0801-12

J0801-10

J0801-14

J0801-13

J0811-9

J0811-10

0

J0801-5

J0801-7

R083733K

CSTCC8.00MG

1C1

3C2

2 GNDQ0821

CSTCC8.00MG

U0833

J0801-3

J0811-6

J0801-4

C0812

470pF

22

J0801-8

R0817

R0814

270

R0815

13K

R081013K

5V

5V

5V

5V

BUS+ 5V

RESET

5V

HOOK

SCI_TX

5V

VOLTAGE_SENSE

FLT_A+

HANDSET_AUDIO

PTT_IRDEC

MIC

BUS+

AN(0:4)

AN(0:4)

5V

USW_5V

FLT_A+

5V

CH_REQUEST

ON_OFF_CONTROL

5V

5V

ON_OFF_SENSE

PTT_IRDEC

FLT_A+

5V

AN(0:4)

USW_5V

FLT_A+

AN(0:4)

Transceiver InterfaceMicrophone Interface

ON/OFF Section

ZWG0130241

4-12

09

07

04

P7

P8

01

P1

P2

P3

P4P5

P6

P6

P7

P8

S0905

P1

P2

P3

P4P5

P5

P6

P7

P8

S0902

P1

P2

P3

P4

P5

P6

P7

P8

S0910

P1

P2

P3

P4

P4P5

P6

P7

P8

S0908

P1

P2

P3

P3

P4P5

P6

P7

P8

S0906

P1

P2

S0903

COL3 COL2

ROW1

ROW2

ROW3

ROW4

8

1

2

3

45

6

7

8

1

2

3

45

6

7

8

1

2

3

45

6

7

8

1

2

3

45

6

7

8

1

2

3

45

6

7

8

1

2

3

45

6

7

ZWG0130242

Figu

Keypad BLayout

P1

P2

P3

P4

SW0906 SW0910

SW0903

P1

P2

P3

P4

SW0906 SW0904

SW0903 SW0901

SW0909 SW0910

SW0908SW0907

SW0902

SW0905

SW0908

SW0905

SW0902

0

1

43KR0909

43K

130KNU

R0904

R0910

130KNU

R0905

51K51K R0906

R0901

22KR0908

22K

13K

R0903

R090213KR0907

P2

P3

P4P5

P6

P7

P8

S09

P1

P1

P2

P3

P4P5

P6

P7

P8

P8

S09

P1

P2

P3

P4P5

P6

P7

8 P8

S09

1 P1

2 P2

3 P3

4 P45 P5

6 P6

7 P7

S09

COL2

COL1

ROW2

ROW1

ROW3 COL3

5V

ROW5

ROW4

COL5

COL4

AN(0:4)

COL4

8

1

2

3

45

6

7

8

1

2

3

45

6

7

8

1

2

3

45

6

7CONTROLHEAD PRO5100/CDM1250 NU

CONTROLHEAD PRO7100/CDM1550 USED

R0909

Keypad CLayout

re 4-8. PRO5100/PRO7100/CDM1250/CDM1550 Control Head Keypad Schematic

4-13

D0949

D0948

NU

NU

D0946NU

NUD0945

D0944NU

D0942NU

NUD0941

NUD0940

NUD0938

D0937

D0958

NUD0957

NU

D0956

NU

NU

D0954

D0953

D0952

NUD0950

D0939D0935NU

NU

NU

D0934

D0933NU

NUD0936

NUD0951 D0955

NUD0947

NUD0943

NUD0932

NUD0931

NU10R0938R0937

10NU0.1uFC0932

R093610K

R093510K

18

4

Q0932NU

U0931-1

MC33072

MC33072

2

3

U31

R0934NU100K

NU

NU

NU

NU

ZWG0130243

Figure 4-9. PRO5100/PRO7100/CDM1250/CDM1550 Control Head LCD Schematic

BACKLIGHT GREEN

NU4.7K

R0933

NUD0961HSMG-H690

D0976

D0975

D0974

D0973

0.1uFC0933

D0968D0988

D0987

D0986

D0985

D0984

D0983

D0982

D0981D0969

D0967

D0965

D0966

D0964NU

NUD0963

D0962NU

D0970

D0971

Q0934R0943

4.7K

C09310.1uF

NU33K

R0931

R0932

NU10K

NQ09

D0980

D0979

D0978

D0977

10KR0946

10K

33KR0942

R0945

10KR0941

D0972

100KR0944

R094810 10

78

4

R0947MC33072

U0931-2MC33072

6

5

Q0933

FLT_A+

FLT_A+

FLT_A+

BL_GREEN BL_RED

FLT_A+

CONTROL HEAD PRO5100/CDM1250 NU NU NU NU

CONTROL HEAD PRO7100/CDM1550 USED USED USED USED

D0981 D982 D0983 D0984

4-14

C09852.2uF

C0984.01uF

SE

G65

_C66

SE

G66

_C67

SE

G67

_C68

SE

G68

_C69

SE

G69

_C70

SE

G62

_C63

SE

G63

_C64

SE

G64

_C65

NC

13

H097104B01

04B01NU

VD

D7

VS

S

125

SE

G77

126

SE

G78

127

SE

G79

128

118

SE

G70

119

SE

G71

120

SE

G72

121

SE

G73

122

SE

G74

123

SE

G75

124

SE

G76

SE

G62

111

SE

G63

112

SE

G64

113

SE

G65

114

SE

G66

115

SE

G67

116

SE

G68

117

SE

G69

CO

M8

40C

OM

941

CO

M10

42C

OM

1143

CO

M12

44C

OM

1345

CO

M14

46C

OM

1547

SED1526F0A

SED1526F0A

ZWG0130244

5V

Figu

DISPLAY

THE LCD IS OF HARDWAREKITS GLN7358A (EUR) and GLN7359A (US)

C09832.2uF

R0975200K

1.8MEG2

R0974

R09731.2MEG

0

1uFNU

R0972

1uFC0972C0971

C09731uF

C09800.1uF0.1uF0.1uF

C0976C0975C09740.1uF

C09820.1uFNU0.1uF

NU0.1uFNU

C0981C0979C09770.1uF

NU

6 7

012

100KNU

3 4 5

R0978

R0977200KNU

100K

SE

G9_

C10

0 1R0976

SE

G6_

C7

SE

G7_

C8

SE

G8_

C9

SE

G58

_C59

SE

G59

_C60

SE

G5_

C6

SE

G60

_C61

SE

G61

_C62

SE

G50

_C51

SE

G51

_C52

SE

G52

_C53

SE

G53

_C54

SE

G54

_C55

SE

G55

_C56

SE

G56

_C57

SE

G57

_C58

SE

G43

_C44

SE

G44

_C45

SE

G45

_C46

SE

G46

_C47

SE

G47

_C48

SE

G48

_C49

SE

G49

_C50

SE

G4_

C5

SE

G36

_C37

SE

G37

_C38

SE

G38

_C39

SE

G39

_C40

SE

G3_

C4

SE

G40

_C41

SE

G41

_C42

SE

G42

_C43

SE

G29

_C30

SE

G2_

C3

SE

G30

_C31

SE

G31

_C32

SE

G32

_C33

SE

G33

_C34

SE

G34

_C35

SE

G35

_C36

SE

G21

_C22

SE

G22

_C23

SE

G23

_C24

SE

G24

_C25

SE

G25

_C26

SE

G26

_C27

SE

G27

_C28

SE

G28

_C29

SE

G14

_C15

SE

G15

_C16

SE

G16

_C17

SE

G17

_C18

SE

G18

_C19

SE

G19

_C20

SE

G1_

C2

SE

G20

_C21

CO

M7_

NC

CO

MS

SE

G0_

C1

SE

G10

_C11

SE

G11

_C12

SE

G12

_C13

SE

G13

_C14

CO

M0_

R1

CO

M1_

R2

CO

M2_

R3

CO

M3_

R4

CO

M4_

R5

CO

M5_

R6

CO

M6_

R7

WR

17 1

V2

2

V3

3

V4

4

V5

5

VO

UT

8V

R6

SE

G8

57S

EG

958

SR

116

SR

215

V1

SE

G7

56 110

103

SE

G55

104

SE

G56

105

SE

G57

106

SE

G58

107

SE

G59

108

SE

G6

55

SE

G60

109

SE

G61

SE

G47

96S

EG

4897 98

SE

G49

SE

G5

54

SE

G50

99S

EG

5110

0S

EG

5210

1S

EG

5310

2S

EG

54

SE

G4

53

SE

G40

89S

EG

4190

SE

G42

91S

EG

4392

SE

G44

93S

EG

4594

SE

G46

95

SE

G32

81S

EG

3382

SE

G34

83S

EG

3584

SE

G36

85S

EG

3786

SE

G38

87S

EG

3988

SE

G25

74S

EG

2675

SE

G27

76S

EG

2877

SE

G29

78

SE

G3

52

SE

G30

79S

EG

3180

SE

G18

67S

EG

1968

SE

G2

51

SE

G20

69S

EG

2170

SE

G22

71S

EG

2372

SE

G24

73

SE

G10

59S

EG

1160

SE

G12

61S

EG

1362

SE

G14

63S

EG

1564

SE

G16

65S

EG

1766

D5

29

D6

30

D7

31

FR

22

M_S

14

RD

18

SE

G0

49S

EG

150

CO

MS

48

CS

120

CS

219

D0

24

D1

25D

226

D3

27

D4

28

CO

M2

34C

OM

335

CO

M4

36C

OM

537

CO

M6

38C

OM

739

CO

M0

32C

OM

133

A0

21

CA

P1_

NE

G11

CA

P1_

PO

S12

CA

P2_

NE

G9

CA

P2_

PO

S10

CL

23U0971 Display Driver

C09780.1uF

3

TP0974

TP0973

TP0975

TP0972

5V

RESETCH_KP_ID(0:7)

LED_CNTRL(0:8)

5V

VOLTAGE_SENSE

TP0971

re 4-10. PRO5100/PRO7100/CDM1250/CDM1550 Control Head Display Schematic

4-15

Ttr

* Models PRO7100/CDM1550 Only** Models PRO5100/CDM1250 Only

CCCCCCCCCCCCCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDD

22 47K47K47K47K47K47K47K47K100K100K100K4K4K4K27027027051K13K22K43K51K13K22K43K10K10K1010K33K4K100K10K10K101001.2M1.8M200K100KICVoltage Sensor8 MHzTemperature Sen-sorICLCD Driver

Diode, Zener

Description

VR0817 4805656W09 Diode, ZenerVR0821 4813830A23 Diode, 5.6VVR0822 4813830A15 Diode, 5.6V

ReferenceDesignator


able 4-2: PRO5100/PRO7100/CDM1250/CDM1550 Con-ol Head Parts List

ReferenceDesignator


0803 2113741F17 470pF0804 2113741F17 470pF0805 2113740F49 100pF0807 2113741F17 470pF0811 2113741F17 470pF0812 2113741F17 470pF0813 2113741F17 470pF0815 2113741F17 470pF0816 2113741F17 470pF0817 2113740F49 82pF0822 2311049A40 2.2uF0823 2113741F49 10nF0831 2311049A42 3.3uF0832 2113743E20 100nF0843 2311049A40 470pF0931 2113743E20 100nF0933 2113743E20 100nF0971 2311049A07 1uF0973 2311049A07 1uF0974 2113743E20 100nF0975 2113743E20 100nF0976 2113743E20 100nF0978 2113743E20 100nF0980 2113743E20 100nF0983 2311049A09 2.2uF0984 2113741F49 10nF0985 2311049A40 2.2 uF0821 4813833C02 Dual Schottky0822 4813833C02 Dual Schottky0831 4880236E05 Schottky0877 4886171B01 LED, Red0879 4886171B04 LED, Green0880 4886171B03 LED, Yellow0951* 4886171B02 LED, Orange0952* 4886171B02 LED, Orange0953* 4886171B02 LED, Orange0954* 4886171B02 LED, Orange0965 4886171B04 LED, Green0966 4886171B04 LED, Green0967 4886171B04 LED, Green0968 4886171B04 LED, Green0969 4886171B04 LED, Green0970 4886171B04 LED, Green0971 4886171B04 LED, Green0972 4886171B04 LED, Green0973 4886171B04 LED, Green0974 4886171B04 LED, Green0975 4886171B04 LED, Green0976 4886171B04 LED, Green

D0977 4886171B04 LED, GreenD0978 4886171B04 LED, GreenD0979 4886171B04 LED, GreenD0980 4886171B04 LED, GreenD0981* 4886171B04 LED, GreenD0982* 4886171B04 LED, GreenD0983* 4886171B04 LED, GreenD0984* 4886171B04 LED, GreenD0985 4886171B04 LED, GreenD0986 4886171B04 LED, GreenD0987 4886171B04 LED, GreenD0988 4886171B04 LED, GreenJ801 0902636Y02 12-pin connectorJ811 2864287B01 10-pin connectorP0801 2809926G01 2-pin connectorQ0821 4805921T02 Transistor, dualQ0822 4880048M01 Transistor, NPNQ0823 4805921T02 Transistor, dualQ0841 4880048M01 Transistor, NPNQ0843 4880048M01 Transistor, NPNQ0877 4813824A10 Transistor, NPNQ0878 4813824A10 Transistor, NPNQ0879 4813824A10 Transistor, NPNQ0933 4813824A08 Transistor, PNPQ0934 4813824A10 Transistor, NPNR0810 0662057A76 13K R0811 0662057A90 51K R0812 0662057A09 22 R0813 0662057A01 10R0814 0662057A35 270 R0815 0662057A76 13K R0816 0662057A90 51K R0817 0662057A09 22R0821 0662057A73 10K R0822 0662057A82 24K R0823 1805911V01 Volume Pot R0824 0662057A65 4K R0825 0662057A49 1K R0831 0662057B22 1M R0832 0662057A57 2K R0833 0662057A89 47K R0834 0662057A35 270R0835 0662057A25 100R0836 0662057A73 10K R0837 0662057A85 33K R0838 0662057A73 10K R0841 0662057A73 10K R0842 0662057A89 47K R0843 0662057A73 10K R0844 0662057A73 10K R0845 0662057A65 4K

ReferenceDesignator


R0847 0662057A93R0849 0662057A89R0852* 0662057A89R0853** 0662057A89R0855 0662057A89R0856 0662057A89R0857** 0662057A89R0858* 0662057A89R0859 0662057A89R0860 0662057A97R0861 0662057A97R0862 0662057A97R0863 0662057A65R0864 0662057A65R0865 0662057A65R0877 0660076A35R0878 0660076A35R0879 0660076A35R0901 0662057A90R0902 0662057A76R0903 0662057A81R0904 0662057A88R0906 0662057A90R0907 0662057A76R0908 0662057A81R0909* 0662057A88R0935 0662057A73R0936 0662057A73R0937 0660076A01R0941 0662057A73R0942 0662057A85R0943 0662057A65R0944 0662057A97R0945 0662057A73R0946 0662057A73R0947 0660076A01R0948 0660076A01R0972 0662057B47R0973 0662057B24R0974 0662057B28R0975 0662057G29R0976 0662057G13U0831 5113802A24U0832 5113815A02U0833 4886061B01U0834 5185963A15

U0931 5113818A03U0971 5186158B01VR0812 4813830A15VR0816 4805656W09

ReferenceDesignator

MotorolaPart No.

4-16


4-17

UART_RX

UART_TX

VSTBY

VS_GAINSEL

VS_INT

VS_RAC

VOICE_STORAGE

5VD

FLAT_RX_SND

RX_AUD_RTN

SP

I(0:

10)

VS_AUDSEL

VS_INT VS_MICVS_RAC

GP

4_IN

_OU

T_A

CC

8

GP

5_IN

_AC

C9

GP

6_IN

_AC

C10

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

GP

IO(0

:13)

LOCK

ON_OFF_CONTROL

OP

T_P

TT

RDY

RE

SE

T

RSSI RX_ADAPT

SCI_TX

SP

I(0:

10)

TEMPSENSE

CONTROLLER5VD

BATTERY_VOLTAGEBOOT_CNTRL

BU

S+

CN

TLR

_AU

DIO

(0:7

)

CNTLVLTG

EXT_BD_REQ

FLT_A+

GP

1_IN

_AC

C3

GP

2_O

UT

_AC

C4

GP

3_IN

_AC

C6

PASUPVLTGFLT_A+

UART_TX

VSTBY

RDY

OPT_PTT

CH_ACT

URX_SND

VS_GAINSEL

MOSBIAS_3

INT_SWB+

EXT_MIC

IN_5V_RF_REG

SCI_TX

VS_MIC

5VD9V3

EXT_SWB+

FLAT_TX_RTN

RX_AUD_RTNDISCAUDIO

INT_MIC

5V_RF

RX_FLAT_FILTERED_AUDIOHANDSET_AUDIOSPKR+SPKR-

EMERGENCY_CONTROLIGNITION_CONTROLDC_POWER_ONON_OFF_CONTROL

BATTERY_VOLTAGE

VS_AUDSEL

TEMPSENSECNTLVLTG

UART_RX

VS_RACVS_INT

RSSILOCK

RX_ADAPT

NOISE_BLNKRPA_PWR_SETMOSBIAS_2

MODIN

TX_AUD_SNDFLAT_RX_SND

16_8MHZ

TX_AUD_RTN

CNTRL_AUDIO(0:7)GPIO(0:13)SPI(0:10)

BUS+RESET

GP8GP7GP6GP5GP4GP3GP2GP1

EXP_BD_REQ

BOOT_CNTRL

ZWG0130228

Figure 4-11. Complete Controller Schematic Diagram

FLT_A+

IGNITION_CONTROL

INT_SWB+

IN_5V_RF_REG

ON_OFF_CONTROL

PASUPVLTG

RESET

VSTBY

TX_AUD_RTN

TX_AUD_SND

UART_RX

UART_TX

URX_SND

VS_AUDSELVS_GAINSEL VS_INT

VS_MIC

VS_RAC

SUPPLY_VOLTAGE

5VD

9V3

BATTERY_VOLTAGE

DC_POWER_ON

EMERGENCY_CONTROL

EXT_SWB+

NOISE_BLNKR

ON_OFF_CONTROL

OP

T_P

TT

PASUPVLTG

PA_PWR_SET

RDY

RE

SE

T

RSSI

RX_ADAPT

RX_AUD_RTN

RX_FLAT_FILTERED_AUDIO

SCI_TX

SP

I(0:

10)

SPKR+SPKR-

TEMPSENSE

GP

2_O

UT

_AC

C4

GP

3_IN

_AC

C6

GP

4_IN

_OU

T_A

CC

8G

P5_

IN_A

CC

9

GP

6_IN

_AC

C10

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

HANDSET_AUDIO

IGNITION_CONTROL

INT_MIC

INT_SWB+

IN_5V_RF_REG

LOCKMODIN

MOSBIAS_2MOSBIAS_3

5VD 5V_RF

9V3 BOOT_CNTRL

BU

S+

CH_ACT

CNTLVLTG

DISCAUDIO

EMERGENCY_CONTROL

EXP_BD_REQ

EXT_MIC

EXT_SWB+

FLAT_RX_SND

FLAT_TX_RTN

FLT_A+

GP

1_IN

_AC

C3

IO

16_8MHZ

TX_AUD_SND

URX_SND

VS_AUDSEL

VS_MIC

FLT_A+

GP

IO(0

:13)

HANDSET_AUDIO

INT_MIC

INT_SWB+

MODIN

MOSBIAS_2

MOSBIAS_3

NOISE_BLNKRPA_PWR_SET

RX_AUD_RTN

RX_FLAT_FILTERED_AUDIOS

PI(

0:10

)

SPKR+SPKR-

TX_AUD_RTN

PASUPVLTGFLT_A+

UART_TX

AUDIO

16_8MHZ

5VD5V_RF

9V3

CH_ACT

CN

TLR

_AU

DIO

(0:7

)

DC_POWER_ON

DISCAUDIO

EXT_MIC

FLAT_RX_SND

FLAT_TX_RTN

BATTERY_VOLTAGE

VSTBY

RDY

OPT_PTT

CH_ACT

URX_SND

VS_GAINSEL

MOSBIAS_3

INT_SWB+

EXT_MIC

IN_5V_RF_REG

SCI_TX

VS_MIC

5VD9V3

EXT_SWB+

TX_AUD_RTNFLAT_TX_RTN

RX_AUD_RTNDISCAUDIO

INT_MIC

5V_RF

RX_FLAT_FILTERED_AUDIOHANDSET_AUDIO

SPKR+SPKR-

EMERGENCY_CONTROLIGNITION_CONTROL

DC_POWER_ONON_OFF_CONTROL

TEMPSENSECNTLVLTG

UART_RX

VS_RACVS_INT

RSSILOCK

RX_ADAPT

NOISE_BLNKRPA_PWR_SET

MOSBIAS_2

MODIN

TX_AUD_SNDFLAT_RX_SND

16_8MHZ

CNTRL_AUDIO(0:7)

GPIO(0:13)

SPI(0:10)

BUS+

RESET

GP8GP7GP6GP5

GP4GP3GP2GP1

EXP_BD_REQ

BOOT_CNTRL

VS_AUDSEL

4-18

GP6_INGP4_IN

GP3_IN

GP4_IN

GP1_IN

GP7_IN

HC138_A0HC138_A1HC138_A2

GP5_IN

GP6_IN

GP8_OUT

HC138_A1

H/W-Version & Memory size

GP4_OUT

GP7_OUT

)

GP2_OUT

GP8_OUT

HC138_A2

GP7_IN

GP8_IN

GP8_IN

GP3_INPE6

HC138_A0

GP5_IN

10

GP4_OUTGP7_OUT

Q0177

7

47KR0186

1000pFC0107

Q0181

C0106100pFNU

10

0.1uF

Y50

Y69

Y77

C0141

EN_CS3 5

GND8

VCC16

Y05

Y14

Y23

Y32Y41

A0 1

A1 2

A2 3

EN_CS1 6

EN_CS2 4

U0141MC74HC138A

9

47KR0178

8

11

4.7K

R0183

3

1213

0

47K

R0182

R0176

5

30K

12

R0175

10K

13

10

1

3

7

R011410K

R01814.7K

4.7K

R0185

5

9

2

4.7KR0177

Q0183

R0179

47K

D0179

4

10K

47KR0184

R0174

R01082.2K

SeeNOTE

100KR0105

4

2

6

Q0173

0SeeNOTE

R01068

10KR0170

Q0185

GP3_IN_ACC6

GPIO(0:13)

GPIO(0:13)

U0101_46U0101_47

VS_RAC

5VD

VS_INT

GP4_IN_OUT_ACC8IRQ

D

5VD

RESET

RESET

5VD

5VD

GP5_IN_ACC9

TTERY_VOLTAGE

5VD

FLT_A+ GP2_OUT_ACC4

MPSENSE

VS_GAINSEL

T_BD_REQ

RSSI

5VD

LOCK

GP7_IN_OUT_ACC12

GP8_IN_OUT_ACC14

5VD

5VD

5VD

GP6_IN_ACC10

5VD

TBY

TLVLTG

ZWG0130229-A

NOTE

R0105 R0106 R0128 R0109 U0125

MDC/Sel5 Used NU NU Used NU

MPT NU Used Used NU Used

Q0171

4.7K

R01715VD10K

R0172

GP1_IN6

5VD

GP1_IN_ACC3

R01734.7K

Figu

16Kx8bit

HS

IO

VS_CSEXP1_CS

CLK

VO

X

LSIO

ON_OFF_SENSE

EEPROM

OPT_CS

MIS

O

CLK

F12

00

CH

AC

TS

Q_D

ET

512kx8bit

(EXT_BD_PTT & DATA_PTT

EE_CS

RAM

FLA

SH

RO

M

GP4_OUTGP7_OUT

LVZIF_CSREF_CSEXP2_CS

MIS

O

SY

N

LSIO

32kx8bit

EE

_CS

DA

TA

CS

X

HS

IO

MICROPROCESSOR

DA

TA

R0121100K

0NU

3

5

R0116

8

43

C0123100pFNU

15 IO416 IO517 IO618 IO719 IO8

28VCC

24A9

20EN_CS 22EN_OE 27EN_WE

GND14

11 IO112 IO213 IO3

1A14

8A27A36A4

A5 54A63A7

25A8U0122

10A09A1

A10 2123A112A12

26A13

32

5

Q0110

27KNU

0

2

R0125

100pFNU

C0104

10MEG

9

R0131

0

7

C0111

100pFNU

1

11111

XTL0 7

XTL112

0

RS013

RS114RTS

R_W*28

10TD

VSS

VDD15

D1 19D0 18

DCD16

DSR17

DTR 11

RC5

RD12

CS13

CTS9

D7 25D6 24D5 23D4 22D3 21D2 20

U0125

CLK

CS02

56

6

3

R010110K

5

8

R010747KNU

1

6

18

TP0102

0.1uFC0121

0.1uF

TP01031

C0122

27KNU

98

R0126

6

6

123

0

1

1

22pF

4

C0131

D01015.6V

VR0151

75

D0151

.01uF

6

11

12

C0151

4

0

7

6

R0128See NOTE

24KR0152

R0132330K

7

SI 5

SO2

VCC8

VSS4

WP 3

2

X25128_2.7V

CLK6

CS 1

HOLD

24K

013

U0111

R0151

1211

10

100pF

0

C0101

1

10

1

7

7

TP0151

10KR0115

0

3

R0111

R011010KNU

C0112

0.1uF

5

R010410K

22pF

2

C0132

10K

6

R0113

0

1

7

TP0101

4

11

5

14

4

9

4

1

10

810

16

NCNC1

OUT IN

R0109

Y0131

38.40KHz

XTAL

R0112

0NU

18

4.7K

4

R0102

14

C0103100pFNU

6

765

8

15

15

9

4

1312

1413

17

40V

SS

L87

VS

SR

XF

C93

48XIRQ

91X

TA

L

94RESET

12V

DD

39V

DD

L88

VD

DR

92V

DD

SY

N

69V

RH

68V

RL

13V

SS

71PJ0_CSGP372PJ1_CSGP473PJ274PJ375PJ476PJ577PJ678PJ7

56P

I055

PI1

54P

I253

PI3

52P

I451

PI5

50P

I649

PI7

47 PH0_PW146 PH1_PW245 PH2_PW344 PH3_PW443 PH4_CSIO42 PH5_CSGP141 PH6_CSGP238 PH7_CSPROG

6 PG0_XA1316 PG1_XA1420 PG2_XA1519 PG3_XA1617 PG4_XA1718 PG5_XA185 PG6_AS

4PG7_R_W

28P

F1_

AD

DR

127

PF

2_A

DD

R2

26P

F3_

AD

DR

325

PF

4_A

DD

R4

24P

F5_

AD

DR

523

PF

6_A

DD

R6

22P

F7_

AD

DR

7

29P

FO

_AD

DR

0

PE0_AN0 67PE1_AN1 66PE2_AN2 65PE3_AN3 64PE4_AN4 63

PE5_AN5 62PE6_AN6 61PE7_AN7 60

37 PC7_DATA7

97P

D0_

RX

D98

PD

1_T

XD

99P

D2_

MIS

O10

0P

D3_

MO

SI

1P

D4_

SC

K2

PD

5_S

SP

D6_

LVIN

3

14P

BO

_AD

DR

8

30 PC0_DATA031 PC1_DATA132 PC2_DATA233 PC3_DATA334 PC4_DATA435 PC5_DATA536 PC6_DATA6

86P

A7_

PA

1_O

C1

10P

B1_

AD

DR

911

PB

2_A

DD

R10

9P

B3_

AD

DR

1121

PB

4_A

DD

R12

15P

B5_

AD

DR

138

PB

6_A

DD

R14

7P

B7_

AD

DR

15

57MODB_VSTBY

79P

A0_

IC3

80P

A1_

IC2

81P

A2_

IC1

82P

A3_

IC4_

OC

5_O

C1

83P

A4_

OC

4_O

C1

84P

A5_

OC

3_O

C1

85P

A6_

OC

2_O

C1

59A

VD

D

70A

VS

S

89ECLK

90E

XT

AL

96IRQLVO

UT

95

58MODA_LIR

U0101MC68HC11FL0

Q0151

7

2

0

32

10

C0105

NU100pF

3

21

26IO5 27IO6 28IO7 29

8VCC

109

1

30

EN_OE32

EN_WE7

24GND

21IO0IO1 22IO2 23IO3 25IO4

18A317A416

15 A514 A6

A713A83A92

EN_CE

1A1212

4 A13A145

11 A15A1610A176

A189

A2

A020A119

A1031

A11

16

3

U0121

1

1

100pFNU

C0102

7

4

2

17

5VD

ON_OFF_CONTROL

R_W

RAM_CS

SCI_TX

BUS+

5

3

5VD

SPI(0:10)SPI(0:10) SPI(0:10) SPI(0:10) SPI(0:10)

CNTLR_AUDIO(0:7) CNTLR_AUDIO(0:7)CNTLR_AUDIO(0:7)CNTLR_AUDIO(0:7)

FROM_U0101_47FROM_U0101_46

UART_CS

FROM_FROM_

IRQ

5VBOOT_CNTRL

FLASH_CE

FLASH_OER_W

5VD

5VD

ECLK

R_W5VD

ADDR_BUS(0:18)

UART_RXUART_TX

5VD

5VD

OPT_PTT

BA

TE

RAM_CS

5VD

EX

RX_ADAPT

5VD

5VD5VD

FLT_A+ FLT_A+

FLASH_OE

UART_CS

DATA_BUS(0:7)

NC

_XT

AL

ECLK

NC

_PB

6_A

DD

R14

NC

_PB

7_A

DD

R15

RDY

ON_OFF_CONTROL

NC_PH5_CSGP1

FLASH_CE

R_W

VS

5VD

CN

See NOTE

8

0 0

26

5VD

0NU

R0124

0NU

R0127

0.1uFNU

C0125

5VD

3.9K

R0117

1

27

UA

RT

1

23

4

5VDC (0VDC during On/Off pressed and during head request)

5VDC (0VDC during boot mode)

re 4-12. Controller Control Schematic Diagram

4-19

SPEAKER+BUS+

1

DIG_IN_OUT_8RSSI

7

4

1817

13 15 17

64

DIG_IN_5 WITH WAKEUP (EMERGENCY)

13

9 11

DIG_IN_OUT_4 = Sel5/MDC UART_TX = MPT

9

DIG_IN_3 = Sel5/MDC UART_RX = MPT

20

1 3

15

REAR VIEW

PCB

2

5

14

NC

16

FLAT_TX_AUDIO

1920

ACCESSORY

910 DIG_IN_6 WITH WAKEUP (IGNITION)

FLAT/FILTERED_RX_AUDIODIG_IN_OUT_7

DIG_OUT2 (EXTERNAL_ALARM)

SPEAKER-

11

345

8

SWB+

16 18

6

16

6

GROUND

5

3

TO/FROM RF

7

NC

N.C.

21

GND

18

DIG_IN1

20-PIN CONNECTOR

J0501

2

151413

10

8

719

17BOOT_CNTRL

EXT_MIC_AUDIO

12

N.C.

1412108

11

12

10R0467

PA_PWR_SET

J0501-17J0501-5

NOISE_BLNKR_CNTLR_1

C04

9647

0pF

16_8MHZ_CNTLR_1

470p

FC

0497

MODIN

470p

FC

0492

470p

FC

0495

C04

7047

0pF

J0501-20

MOSBIAS_2_CNTLR_1

C04

4147

0pF

NU

J0501-1

J0501-15

NOISE_BLNKR

J0501-10J0501-11

C04

93

J0501-12

470p

F

DISCAUDIO_CNTLR_1

J0501-16

MOSBIAS_3_CNTLR_1

J0501-8

J0501-2J0501-19

470p

FC

0494

MODIN_CNTLR_1

J0501-13

J0501-3

C04

98

NU

470p

F

16_8MHZ

J0501-7

J0501-6

J0501-4J0501-18

DISCAUDIO

MOSBIAS_2

MOSBIAS_3

PA_PWR_SET_1_CNTLR_1

5V

C04

9147

0pF

J0501-14

5V_CNTLR_1

J0501-9

DISCAUDIOHANDSET_AUDIOHANDSET_AUDIO

UART_TXUART_RX

RSSI RSSI

UART_TX UART_TX

UART_RXUART_RX

RDYRDY

OPT_PTT

OPT_PTTOPT_PTT

INT_MIC INT_MIC

SPKR+SPKR+DISCAUDIO

EXP_BD_REQEXP_BD_REQEXP_BD_PTT EXP_BD_PTT

CH_ACT CH_ACTOPT_CSRDY

GP4_IN_OUT_ACC8

SPI_CLK

EXP_BD_PTT

DISCAUDIO

MOSBIAS_3

VS_MIC VS_MICFLAT_TX_RTN

DISCAUDIO

16_8MHZ

5V_RF

MODIN

NOISE_BLNKR

MOSBIAS_2

PA_PWR_SET

FLAT_TX_RTN FLAT_TX_RTN

GP4_IN_OUT_ACC8 GP4_IN_OUT_ACC8

CH_ACT

SPI_DATASPI_MISO

EXP_BD_REQEXP1_CS

BUS+ BUS+RESETRESET

ON_OFF_CONTROL ON_OFF_CONTROLEXT_MICEXT_MIC

SPKR-SPKR-

5VD5VDFLT_A+FLT_A+

ZWG0130230 A

INT_SWB_CNTLR_1INT_SWBINT_SWB+

C04

9947

0pF

Pin 1 to 16 used for standard accessoriesPin 17 to 20 for special use

Figure 4-13. Controller I/O Schematic Diagram

3231

11

7

17

12

10

VS_CS

INT_MIC

26

Gnd

RST*

VS_MIC

DB1

36

3938

30

33

37

DB2

Key_Intrp

9V3

LED_EN

DB0

DATA

Tx_Aud_SndTx_Aud_Rtn

PTT

Vddd

25

6

J0551

9

32

1

NC

9

78

NC

NC

101112

4

DATA

CLK

8

NC

GROUND

Rx_Aud_Rtn

Rdy/Req

EXPANSION BOARD18-PIN CONNECTOR

DATA

SCI_TX

EXP_BD_PTTGND

FAST_SQDISCAUDIO

INTERNAL OPTION BOARD

23

21

1920

16151413

5

2829

12-PIN CONNECTOR

DB7

NC

24NC

NC

DB6

5VDHANSET_AUDIO

CONTROL HEAD

BUS+

VS_GAINSELOFF_BATT_DATA_OUT

FLT_A+

Key_Col

TO/FROM RF

VS_RAC

NCNC

NC

GND

CSX

RX_ADAPT

CLKMISO

4

VS_CS

Flat_Tx_RtnCLK

SrD_Rtn

EXP1_CS

CLK

MISO

EXP_BD_PTT

DB3

J0401

SrD_Snd

Rx_Aud_SndON

VS_INT

123

56 OPT_CS

RDYOPT_PTT

NCNC

FLAT_TX_RTN

ON_OFF_CONTROL

J0451

A0

Key_Row

VS_AUDSEL

GPIOEXP1_CS

EXP_BD_REQ

INT_EXT_Vdd

R/W*

Opt_Bd_En

CS*

27

22

18

40-PINS CONNECTOR

SPEAKER-SPEAKER+

GROUND

UART_TXUART_RX

Det_Aud_Snd

40

OPT_CS

DB4DB5

SCK_Snd

3534

DATA

470p

FC

0510

J0451-2

J0401-10

J0401-7

470p

F

J0551-19

C05

01

C04

26

.01u

F

J0401-2J0401-1

470p

FN

UC04

03

C04

02N

U

C04

57

NU

470p

F

NU

470p

F

470p

F

C04

58

C04

59

NU

470p

F

J0551-42

J0551-41

J0551-1

VR050933V

C05

2447

0pF

NU

470p

F

NU

C04

54

C05

2847

0pF

NU

C0428

9V3

R0410

82pF

0NU

VR05375.6V

C04

7347

0pF

470p

FC

0474

C04

7647

0pF

8

NU470pF

C0558

470pF

CSX_CNTLR_2

CSXC0482

C0410NU

470pF

J0551-5

470p

F

NU

470p

F

NU

C05

23

470p

F

NU

C05

31

C05

30

VR050520V

C04

8747

0pF

33VVR0510

C04

4947

0pF

J0401-3

PASUPVLTG

LOCK

J0551-37

82pF

NU

DATA

C05

39

J0551-32J0551-33

J0551-28

J0451-16

9

RSSI_CNTLR_1

NUC0411

470pF

9V3

J0551-27

VR0521 VR0522

5.6V 5.6V

NU220R0522

NU220R0521

RSSI

NU390nHL0481

10

DATA

R0407

C05

2747

0pF

NU

C05

2647

0pF

NU

470p

F

NU

470p

F

C05

40

C04

23

470pF

C0431

470p

FC

0422

470p

F

NU

C05410.47uF

C05

25

J0551-24

R0525100K

9V3_CNTLR_1

NU

9

C05

3547

0pF

VR050120V

C04

72

C04

7147

0pF

470p

FR046810

J0551-6J0551-7

220R0524

220R0523

14VVR0541

CNTLVLTG_CNTLR_1

NU47K

R0542

C04

67

NU

470p

F

J0401-12

J0451-10

C05

0947

0pF

J0451-17

J0551-34

R0409 10

J0551-8J0551-9

C05

15

J0551-10

470p

F

R0535

J0451-14

1K

C04

56

C05

20

CLK

NU

470p

F

C04

07

NU

470p

F

470p

FN

U

C04

4847

0pF

C04

4747

0pF

J0451-18

9

8

C04

8647

0pF

C0429

470pF

C04

53

NU

470p

F

NU

470p

FC

0455

470p

F

NU

C04

68

J0451-9

C04

8547

0pF

NU

C04

6247

0pF

LOCK_CNTLR_1

J0551-30

J0551-35

C05

0547

0pF

J0551-38

C05

3847

0pF

NU

C0408NU

82pF

470p

F

NU

C05

34

C05

3347

0pF

NU

C05

3247

0pF

NU

C04

6447

0pF

NU

J0551-11

J0551-2

J0551-16

0.1uFC0593

NU0.1uF

C0554

0R0533

470p

F

NU

C05

21C

0488

470p

FC

0508

470p

F

C05

11

C05

12

470p

F

CLK

470p

F

2

470p

FC

0477

C04

4247

0pF

NU

NU470pF

47K

CSX

C0560

R0529

J0551-21

J0401-11

J0451-5

J0551-3

C0576

NU470pF

PASUPVLTG_CNTRL_1

VR050320V

J0401-4

R059210

C05910.1uF

9V3_CNTLR_2

J0451-6

TEMPSENSE_CNTLR_1

470p

F

NU

C04

43

C04

63

NU

470p

F

J0551-14

J0551-4

VR0504

470p

FC

0504

33V

NU

470p

FC

0519

C04

2747

0pF

J0451-3

C05

16.0

1uF

J0451-12

C05

2247

0pF

NU

NU470pF

C0575

C0559

RESET

TEMPSENSE

NU470pF

C05

3747

0pF

NU

470p

FC

0513

470p

FC

0478

0R0482

R0481 0

8 CLK_CNTLR_2

C04

4547

0pF

C04

4647

0pF

J0451-13

J0551-26

220R0537

470p

FC

0514

J0551-36

NU

470p

F

NU

470p

F

C04

44

C04

61

0R0527 0R0528

J0551-15

82pF

C05

17

J0551-25

J0401-8

J0401-5

J0551-31

470p

FNU

C05

36

470p

FC

0484

470p

F

NU

C04

66

J0551-18

J0551-23

J0551-17

470p

F

NU

C04

60

27K R0541

C0430

470pF

82pF

J0401-6

C04

21

J0451-1

0.1uFC0592

C04

06N

U47

0pF

1

10

J0551-22

RESET_CNTLR_1

0R0530

R0401220

CLK_CNTLR_1

C05

1847

0pF

NUC04

01 82pF

470p

FC

0502

J0551-13

J0451-7

R0591

J0451-8

100K

24K

R0511

CSX_CNTLR_13

C04

8347

0pF

J0551-40

DATA_CNTLR_2

J0551-20

C0409

470pF

J0451-11

NU

4.7K

4.7K

R0539

R0510

DATA_CNTLR_1

J0451-4

J0451-15

470p

FC

0506

R0538220

J0551-39

J0551-12

CNTLVLTG

C0542

TP04811

47uF

J0551-29

15KR0512

C05

03

390nH NU

470p

F

J0401-9

7

L0482

560

R0531

C04

51

NUNU

470p

F

470p

F

HANDSET_AUDIO

UART_RXUART_TX

GP6_IN_ACC10

BOOT_CNTRL

5VD

C04

52

FLT_A+

BUS+

5VD

RSSI

EXT_SWB+

UART_TXUART_RX

GP4_IN_OUT_ACC8GP3_IN_ACC6

RDY

OPT_PTT

INT_MIC

GP7_IN_OUT_ACC12

5VD

GP4_IN_OUT_ACC8EXP1_CS

EXP_BD_REQEXP_BD_PTT

CH_ACTDISCAUDIO

FLT_A+

SCI_TX

SPKR+

GP1_IN_ACC3


EMERGENCY_CONTROLGP5_IN_ACC9

SPKR+SPKR-

ON_OFF_CONTROL

EXP_BD_PTT

SPI(0:10)

RX_ADAPT

EXT_MICSPKR-

FLAT_TX_RTN

EXP1_CS

9V3

GP8_IN_OUT_ACC14

FLT_A+

FLAT_TX_RTN

RESET

RESET

PASUPVLTG

BUS+

GP2_OUT_ACC4

9V3

TEMPSENSE

CNTLVLTG

RSSI

LOCK

SPI_DATA

SPI_CLK

SPI_MISO

VS_CS

OPT_CS

OPT_CS

SPI_DATA

TX_AUD_RTN

VS_CSVS_MIC

SPI_CLK

FLAT_RX_SNDRX_AUD_RTN

URX_SND

TX_AUD_SND

VS_INT

5VDVS_AUDSEL

VS_GAINSELSPI_MISO

VS_RAC

IGNITION_CONTROL

FLT_A+

NOTE

VR0521 R0523 R0527 VR0522 R0524 R0528

MDC/Sel5 NU NU Used NU NU Used

MPT Used Used NU Used Used NU

See NOTESee NOTE

See NOTESee NOTE

See NOTESee NOTE

100R0408

Note

Note: Fuse is part of PCBIn case fuse is blowen, replaceit with R0410 P/N 0662057B47

4-20

C0262

82pF

NU

1000pFC0276

R0262

100K

74

11MC3403U0211-2

6

5

INV

M_SS

NINV

4OUT1

OUT2 6RR

VCC

70271

GND12 5

GND2

F75

C0271.01uF

E027157R01

57R011000pFE0272C0277

100K

R0253

34

MC3403

9

10

84

11

3

U0211-3

C0253

100pF

NU

9V3

9V3

MODIN

16_8MHZ

SPKR-

SPKR+

VS_AUDSEL

SPI(0:10)GPIO(0:13)

CNTLR_AUDIO(0:7)

AG

AG

HANDSET_AUDIO


ZWG0130231-A

PA

t)

630mV RX Filtered330mV Flat

Figu

SY

N

F12

00

CLK

GP

2_O

UT

CS

X

DA

TA

LSIO

VO

X

SQ

_DE

T

HS

IO

CH

_AC

T

R025147K

0.1uF

C0261

C0204

0.1uF

C0235

C0231

.022uF

4.7uF

C02510.1uF

NU

R0275

5

10K

10uFC0212

R0206

10K

24K

2

R0273

NU0.22uF

C0224100pF

C0233

R0208

0.1uF

2.2K

C0222

100pFC0243

2200pFC0203

NU

0.1uF

C0227

6

R027615K

MC3403

2

31

4

11 U0211-1

24K

R0221

R0269470

NU0.1uF

C02650.1uF

C0266

4

Q0271

9

8

13

U

.033uF

C0273

C0236

3300pF0.1uFC0245

C0232

9

0.1uF

0

NU

R0242

C02420.1uF

0.1uFC0241

C0267.01uF 47K

10K

R0267

R0268

R026524K

10uFC0201

NU

2200pF

D0201

NU

C0205

10KR0205

R0252

56K

47uC02

7

560

R0202

TP0221

1

C02521uF

1

7

0.1uFC0272

0.1uF

R0223

C0226

30K

0.1uF

C0221

.01uFC0246

3

10K

R0261

R02072.2K

R022224K

0.1uFC0244

C02540.1uF

C02550.1uF

7.5K

R0212

R0211

Y14

Z

5 Z0

Z13

7.5K

GND

VCC

7VEE

14X

12 X013

X1

15Y

2 Y0

1

MC14053B

A 11

10B

9C

6EN

8

45V

DD

RC

27VDDSYN

7 VOX

U0251

36TXRTN

44T

XS

ND

10 UIO39

UR

XO

UT

1 VDDA

32VDDCP

33VDDD

11 VDDDAC

46M

ICIN

T

40M

OD

26NC

8 PLCAP

25

PLC

AP

2

17S

QD

ET

9 SQIN 28SYN

31GNDD 30GNDD0

47G

ND

RC

23G

ND

SY

N

19H

SIO

LCA

P2418

LSIO

48M

ICE

XT

29F1200

15G

CB

0

14G

CB

1

13G

CB

235GCB3

GC

B4

3738G

CB

5

3 GNDA

21C

LK

34CLK168

20C

SX

6 DACG

5 DACRDACU4

22D

AT

A

2 DISC

12AGCCAP

41A

UD

IO

AU

XR

X43 42

AU

XT

X

16C

HA

CT

63A53

U0221

1

TP0222

R026624KNU

MC340U0211-

13

1214

4

11

MC340

NU0.1uF

560

8

C0211

R0204

100R0201

R0224

11

8.2K

47KR0241

NU10KR0274

C0223

0.1uF

0.1uFC0234

NU0.1uF

C0274

0.1uFC0225

INT_SWB+

CH_ACT

VAG

9V3 9V3

9V3

VS_MIC

MOSBIAS_3

VAG

EXT_MIC

TX_AUD_SND

5V_RF

5V_RF

5VD5VD

5V_RF

5V_RF5V_RF

5V_RF

5V_RF

TX_AUD_RTN

RX_AUD_RTN

INT_MIC

URX_SND

FLAT_RX_SND

DC_POWER_ON

FLT_A+

ASFIC CMP

5VD

5VD

DISCAUDIO

PA_PWR_SET

MOSBIAS_2

9V3

FLAT_TX_RTN

NOISE_BLNKR

V

V

2.2uFNU

C0237

R02248.2KNU

R02261M

R02271M

4.6VDC

80mV RMS

80mV RMS

5VDC (0VDC during radio off)

13VDC unmuted5VDC muted

300mV RMS

200mV RMS

145mV RMS @25kHz72mV RMS @12.5kHz 5VDC RX Filtered

Audio (0V DC Fla

0 VDC

re 4-14. Controller Audio Schematic Diagram

4-21

C062247uF

0.1uFC0655

33uFC0652

D0621

NU470pFC0621

10uFC0654

5.6VVR0621

MC78M05

2

GND

1IN

3OUT

5.6V

U0651

NU

VR0671

30KR0671

10KR0672 C0671

0.1uF

NU

NC13

NC25

NC36

NC478NC5

RESET 1

U0653

U0652MC33064

GN

D

4

INPUT2

24K

R0621

EXT_SWB+

RESET

9V3

5VD

VSTBY

PASUPVLTG

INT_SWB+

BATTERY_VOLTAGE

FLT_A+

DWG NO

ZWG0130232-A

Q0681

IN_5V_RF_REG

68KR0682

06718K

0.1uFC0681

5VDC

6VDC

5VDC

5VDC (0VDC during reset)

Figure 4-15. Controller Supply Voltage Schematic Diagram

C0663

C0662

0.1uF

.01uF

10

R0652

Q0641

C061122uF

J0601-1

150KR0662

1.2KR0643

R061156K

0.1uFC0645

33uFC0644R0641C0641

470pF 10K

J0601-2

C06120.1uF

Q0661

U0611

ADJ1

GND13

GND26

2 ON_OFFVIN

4VOUT

5

LM2941

D0661

1ADJ

GND13

GND26

ON_OFF2

4VIN

5VOUT

LM2941U0641

Q0662

R0651

57R01

10

R0642

E0631

J0601-3

7.5K

C0601

C0603

470pF

10uF

R0661

1K C066147uF

D0651

0.1uFNU

C0651

Q0663

D0660

4.7K

24V

R0612

VR0601

DC_POWER_ON

IGNITION_CONTROL

EMERGENCY_CONTROL

ON_OFF_CONTROL

R1

0V (13,8VDC when radio off)

4-22

Tabl

CiR

C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0

F F F F F F F F FF e, Schottkye, Dual e, Dual e, Dual e, Dual e, Dual e, Dual te Beadte Beadte Beadector, Flex, 12-pinector, Flex, Side Entryector, SMD, 20-Pinector, Zif, Horizontal ower Connector , Dalington , Dalington1/16W 5%1/16W 5%

Description

R0108 0662057A57 2KR0109 0662057B47 0 R0111 0662057B47 0 R0113 0662057A73 10K R0114 0662057A73 10K R0115 0662057A73 10K R0117 0662057A63 3K R0121 0662057A97 100K R0131 0662057B46 10MR0132 0662057B10 330K R0151 0662057A82 24K R0152 0662057A82 24K R0170 0662057A73 10K R0171 0662057A65 4K R0172 0662057A73 10K R0173 0662057A65 4K R0174 0662057A73 10K R0175 0662057A73 10K R0176 0662057A84 30K R0177 0662057A65 4K R0178 0662057A89 47K R0179 0662057A89 47K R0181 0662057A65 4K R0182 0662057A89 47K R0183 0662057A65 4KR0184 0662057A89 47K R0185 0662057A65 4KR0186 0662057A89 47K R0201 0662057A25 100 R0202 0662057A43 560 R0204 0662057A43 560 R0205 0662057A73 10K R0206 0662057A73 10K R0207 0662057A57 2KR0208 0662057A57 2KR0211 0660076E70 7.5KR0212 0660076E70 7.5KR0221 0662057A82 24K R0222 0662057A82 24K R0223 0662057A84 30K R0224 0662057A71 8KR0226 0662057B22 1M R0227 0662057B22 1M R0241 0662057A89 47K R0242 0662057B47 0 R0251 0662057A89 47K R0252 0662057A91 56K R0253 0662057A97 100K R0261 0662057A73 10K R0262 0662057A97 100K R0265 0662057A82 24K

CircuitRef

MotorolaPart No. Description

e 4-3. Controller Parts List

rcuitef


101 2113740F51 100pF107 2113741F25 1nF112 2113743E20 100nF121 2113743E20 100nF 122 2113743E20 100nF 131 2113740F35 22pF 132 2113740F35 22pF141 2113743E20 100nF151 2113741F49 10nF201 2311049A57 10uF 204 2113743E20 100nF 212 2311049A57 10uF 221 2113743E20 100nF222 2113743E20 100nF 223 2113743E20 100nF224 2113740F51 100pF225 2113743E20 100nF 226 2113743E20 100nF 227 2113743E20 100nF231 2113743B29 1UF 232 2113743E20 100nF 234 2113743E20 100nF235 2113743E07 22nF 236 2113743E10 33nF 241 2113743E20 100nF243 2113740F51 100pF 244 2113743E20 100nF 245 2113743E20 100nF246 2113741F49 10nF 252 2311049A07 1uF 254 2113743E20 100nF 255 2113743E20 100nF261 2113743E20 100nF 262 2113740F49 82pF265 2113743E20 100nF 267 2113741F49 10nF 271 2113741F49 10nF 272 2113743E20 100nF 273 2113741F37 3.3nF 275 2311049A99 47uF 276 2113741F25 1nF 277 2113741F25 1nF421 2113743N48 82.0pF 422 2113741F17 470pF423 2113741F17 470pF426 2113743L09 470pF 427 2113743L09 470pF428 2113743N48 82pF 429 2113743L09 470pF

C0430 2113741F17 470pF C0431 2113741F17 470pF C0445 2113743L09 470pF C0446 2113743L09 470pF C0447 2113743L09 470pF C0448 2113743L09 470pF C0449 2113743L09 470pF C0470 2113743L09 470pF C0471 2113743L09 470pF C0472 2113743L09 470pF C0473 2113743L09 470pF C0474 2113743L09 470pF C0476 2113743L09 470pF C0477 2113743L09 470pF C0478 2113743L09 470pF C0482 2113743L09 470pF C0483 2113743L09 470pF C0484 2113741F17 470pF C0485 2113743L09 470pF C0486 2113743L09 470pFC0487 2113743L09 470pF C0488 2113743L09 470pF C0490 2113743L09 470pF C0491 2113743L09 470pF C0492 2113743L09 470pF C0493 2113743L09 470pF C0494 2113743L09 470pF C0495 2113743L09 470pF C0496 2113743L09 470pF C0497 2113743L09 470pF C0499 2113743L09 470pF C0501 2113741F49 10nF C0502 2113743L09 470pF C0503 2113743L09 470pF C0504 2113743L09 470pF C0505 2113743L09 470pF C0506 2113743L09 470pF C0508 2113743L09 470pF C0509 2113743L09 470pF C0510 2113741F17 470pF C0511 2113743L09 470pF C0512 2113743L09 470pF C0513 2113741F17 470pF C0514 2113743L09 470pF C0515 2113743L09 470pF C0516 2113741F49 10nF C0517 2113743N48 82pF C0518 2113743L09 470pF C0541 2311049A05 470nF C0542 2311049A99 47uFC0591 2113743E20 100nF

CircuitRef


C0592 2113743E20 100nC0593 2113743E20 100nC0601 2113741F17 470pC0603 2380090M24 10uFC0611 2311049C06 22uFC0612 2113743E20 100nC0622 2311049A99 47uFC0641 2113741F17 470pC0644 2311049A97 33uFC0645 2113743E20 100nC0652 2311049A97 33uFC0654 2311049A57 10uFC0655 2113743E20 100nC0661 2311049C05 47uFC0662 2113741F49 10nFC0663 2113743E20 100nC0671 2113743E20 100nC0681 2113743E20 100nD0101 4880236E05 DiodD0151 4813833C02 DiodD0179 4813833C02 DiodD0621 4813833C02 DiodD0651 4813833C02 DiodD0660 4813833C02 DiodD0661 4813833C02 DiodE0271 2484657R01 FerriE0272 2484657R01 FerriE0631 2484657R01 FerriJ0401 0902636Y02 ConnJ0451 0902636Y01 ConnJ0501 0986105B01 ConnJ0551 0905505Y04 ConnJ0601 0986165B01 DC PQ0110 4880048M01 NPNQ0151 4880048M01 NPNQ0171 4880048M01 NPNQ0173 4880052M01 NPNQ0177 4880048M01 NPNQ0181 4880048M01 NPNQ0183 4880048M01 NPNQ0185 4880048M01 NPNQ0271 4813824A10 NPNQ0641 4880048M01 NPNQ0661 4805921T02 DualQ0662 4813824A10 NPNQ0663 4880048M01 NPNQ0681 4880052M01 NPNR0101 0662057A73 10k R0102 0662057A65 4k7 R0104 0662057A73 10K R0105 0662057A97 100K

CircuitRef

MotorolaPart No.

4-23

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRU**UUU

* Motorola Depot Servicing only

Reference designators with an asterisk indicate components which are not field replaceable because they need to be calibrated with specialized factory equipment after installation. Radios in which these parts have been replaced in the field will be off-frequency at temperature extremes.

0267 0662057A89 47K 0268 0662057A73 10K 0269 0662057A41 4700273 0662057A82 24K 0275 0662057A73 10K 0276 0662057A77 15K0401 0662057A33 2200407 0662057M26 10 0408 0662057A25 1000409 0662057M26 10 0467 0662057M26 10 0468 0662057M26 10 0481 0662057B47 0 0482 0662057B47 0 0510 0662057A65 4K0511 0662057A97 100K0512 0662057A77 15K 0525 0662057A97 100K 0527 0662057B47 0 0528 0662057B47 00529 0662057A89 47K0530 0662057B47 00531 0662057A43 5600533 0662057B47 0 0535 0662057A49 1K 0537 0662057A33 220 0538 0662057A33 220 0539 0662057A65 4K 0541 0662057A83 27K0591 0662057A82 24K0592 0662057A01 100611 0662057A91 56K 0612 0662057A65 4k0621 0662057A82 24K 0641 0662057A73 10k0642 0660076E70 7.5K0643 0660076E51 1.2K0651 0662057A01 100652 0662057A01 10 0661 0662057A49 1K 0662 0662057B02 150K 0671 0662057A84 30K 0672 0662057A73 10K 0681 0662057A79 18K 0682 0662057A93 68K 0101 5102226J56 Microprocessor

U0111 5102463J64 EEPROM U0121 5186137B01 512KX8 ROM 0122 5185963A21 32KX8 SRAM0141 5113805A30 Remux 0211 5183222M49 Quad Opamp

CircuitRef


U0221 5185963A53 ASFICU0251 5113806A20 Mux/DemuxU0271 5109699X01 Audio Power AmplifierU0611 5183308X01 Adjustable Voltage Regulator U0641 5183308X01 Adjustable Voltage RegulatorU0651 5113816A07 Regulator, +5V U0652 5113815A02 Under Voltage SensorVR0151 4813830A15 Diode, 5.6V VR0501 4805656W09 Zener QuadVR0503 4805656W09 Zener Quad VR0504 4813830A40 Auto ShutdownVR0505 4805656W09 Diode Zener Quad VR0509 4813830A40 Auto ShutdownVR0510 4813830A40 Auto ShutdownVR0537 4813830A15 Diode, 5.6V VR0541 4813830A27 Diode, 14VVR0601 4813832C77 Transient SupressorVR0621 4813830A15 Diode, 5.6V Y0131 4880113R19 Crystal 38.4KHz

CircuitRef


4-24


4-25

332

c

GND

RXINJ

.022uFC4336

3

C4339

Vac

1KR4343

R434410

Q4332

C4333Vac

SH4301SHIELD

0

RXINJ_UHF_VCO

R4347

C4334

Vac

R4341

0

R4339Vac

SHIELDSH4302

Vac

R4337

100pF

C4335

Vac

VacR4345

R4336 C4337

51pF

390nH

R4338

Vac

L4333

R4334

Vac

2.2KR4342

6

4

4333

Q4331

c

R4335

Vac

51pFC4338

R4340

Vac

13.5 to 16 dBm

0 VDC (Tx)4.7 VDC (Rx)

ZWG0130272

Figure 4-16. UHF (403-470MHz) Voltage Controlled Oscillator Schematic Diagram

CR4302

R4361180

CR4301

0

R4315

L4

Va

VCOBIAS_2

100pF

VCTRL_UHF_VCO C4312

12pF

C4309

R4311

390nH

7.5K

Vac

L4361

R433

C4305Vac

CR4303

R430210K

R4346

10K

1pFC4321

C43141.5pF

5V_UHF_VCO

C43180.22uF C4381

0.1uF

C4323

Vac

30R4313

0.1uF

CR4311

100pF

C4352

C4363

Vac

C4301

C4372

Vac R4332

Vac

4.7uF

C4325

1P1

2

P2

3 P3

TXINJ_UHF_VCO

L4312

RESONATOR

L433133nH

L4301390nH TRB_UHF_VCO

C4315100pF

Vac

22

R4331

C4313

TX_EMITTER

1TX_IADJ

10TX_OUT

13TX_SWITCH

14

VCC_BUFFERS

18

VCC_LOGIC

RX_BASE6

RX_EMITTER

2RX_IADJ

8RX_OUT

7RX_SWITCH

3SUPER_FLTR

19TRB_IN

16TX_BASE

15

1

4COLL_RFIN

20FLIP_IN

11G

ND

_BU

FF

ER

S

9G

ND

_FLA

G

GN

D_L

OG

IC17

12PRESC_OUT

5

50U54

U4301

Q4301

100pF

2.4pF

C4307

68nH

C4324

56K

R4321

L4371

R4323

6.8pF

100K

C4331

C4351100pF

VCOMOD

390nH

L4311

C43552.2uF

C4362

Vac

CR4321C4322

Vac

C4374

Vac

270R4314

C4373Vac

C43062pF

C4311100pF

C43710.1uF

0.22uF

C4308

0.1uFC4316

C4383

Vac

8.2pFC4303

C4354

C4382

Vac

2.2uF

R43125.6K

30

R43038.2pFC4302

390nH

C4332

Vac

PRESC

L4302

R4322

10K

2

1

3

C4361100pF

TXINJ

Q

VCOBIAS_2_UHF_VCO

C43750.1uF

Va

10

R4305390nHL4304

390nHL4305

Vac

VSF_UHF_VC0

3.9pF

C4317

VCOMOD_UHF_VCO

TRB

C4304

5.6K

R4301VSF

3 P3

5V

C43530.1uF

L4303RESONATOR

1 P1

2 P2

180

R4304

390nH

L4313

GROUND

VCTRL

PRESC_UHF_VCO

5V

VSF

TXSW

TXSW

RXSW

RXSW

VSF

0 VDC (Tx)

4.58 VDC

4.58 VDC

2.5 - 11 VDC

0 VDC (Rx)4.97 VDC (Tx)

-18 to -16 dBm (Rx)-16 to -11 dBm (Tx)

4 to 6 dBm

4.54 VDC

4.54 VDC (Tx)0 VDC (Rx)

4.42 VDC (Rx)0 VDC (Tx)

3.1 VDC (Rx)2.6 VDC (Tx)

1.91 VDC (Tx)0 VDC (Rx)

2.45 VDC (Rx)0 VDC (Tx)

2.35 VDC (Tx)

4.54 VDC(Rx)

2.43 VDC (Rx)

4-26

C4251

C42521000pF

202

C42534.7uF

IN_5V_RF_REG

MODIN

C4227

100pF

100pFC4243

U4507

100pF

VSF_UHF_FN_1

C4255

CLK_UHF_FN_1

C4242

VDDA

100pF

CSX_UHF_FN_1

C4244CLK

VSF

100pF

30KR4252

C4231

DATA

.01uF

VDDA_UHF_FN_1

.01uFC4232

2.2uFC4233

0.1uFC4254

C42631.5pF

L4231

PRESC

CSX

2.2uH

MODIN_UHF_FN_1

DATA_UHF_FN_1

C42142.2uF

VCOBIAS_2

IN_5V_RF_REG_UHF_FN_1

C42110.1uF

uF30

7BACK

8NPUT

3DOWN

U4506

.01uFC4234

2.2uFC4215

R425139K

C4226

11 dBm (Tx)

DC (Rx)

DC

VDC

16 dBm (Rx)

0 VDC

4.97 VDC

2.52 VDC

4.97 VDC

4.58 VDC

ZWG0130270

Figu

C4262220pF

C42280.1uF

R4221

150 TP41

TRB

D4261

2.2uFC4213

R4241

220

C4221.01uF

LOCK_UHF_FN_1

C4202

.01uF

BWSELECT

0.1uFC4209

2.2uFC4210

16_8MHz_UHF_FN_1

C4204

5V_UHF_FN_1

100pF

R4222510

VCOMOD

C4246100pF

100pFC4287

C4241

C4223

0.1uFC4222

C4207

C42890.1uF

Vac

VCTRL

R4263

47R4204

5V

.01uF

C4203

C4212

.018uF

1514 VMULT2

12 VMULT3

11 VMULT4

VR

O13

25 WARP

23 XTAL1XTAL224

SFBASE

26SFCAP

30SFIN

28 SFOUT

37 TEST1

38 TEST2

21VBPASS

47V

CP

VMULT1

31NC3

44P

D_G

ND

PD

_VD

D5

PREIN32

33P

RE

_GN

D

34P

RE

_VD

D

35PVREF

18REFSEL

27

45 IADAPT

16 INDMULT

43 IOUT

LOCK4

10MODIN

41 MODOUT

17NC1

29NC2

39BIAS2

42CCOMP

9CEX

8CLK

7DATA

DG

ND

6

36D

VD

D

19 FREFOUT

46 ADAPTSW

22A

GN

D

48 AUX1

1 AUX2

2 AUX3

3 AUX4

20A

VD

D

40BIAS1

63A27

U4201

L4201390nH

BWSELECT_UHF_FN_1

VCOMOD_UHF_FN_1

510pF

C4225

C4208

0.1uF

TP42011

C420610uF

R4261150K

33K

R4206

C426162pF

5V_UHF_FN_2

C4205.01uF

150

R4201

C4288

16_8MHz

2GND

3OUT

VCC4

VCNTL1

16.8MHzY4262

TTS05V

R4262

C4235

2.2C4268

R4223

3

TRB_UHF_FN_1

6A1

5A2

4A3

K11K22K3

D4201

6 5V_TAP

5ERROR FEED

4GND

I1

OUTPUT

2 SENSE SHUT

LP2951U4211

VCTRL_UHF_FN_1

R4211

0

R422847K

R420347

C4224

LOCK

1uF

2 1

C4216

16.8MHz

2.63 VDC (TX)

4.97 VDC (25KHZ Chan. Spacing)

0 VDC (12.5KHZ Chan. Spacing)

5 VDC (Locked)

0 VDC (Unlocked)

10.87 VDC

-16 to -

12.7 VDC

4.97 VDC

6.68 VDC

2.5 to 11 VDC

1.76 VDC (Tx)

1.78 V

3.79 V

2.48 VDC

3.43

-18 to -

2.48 VDC

1.28 VDC

3.48 VDC0 VDC (RX)

4.97 VDC (TX)

3.05 VDC (RX)

re 4-17. UHF (403-470MHz) Fractal-N Schematic Diagram

4-27

100pFC4473

100pFC4479

R4472

Vac

C4480

RE

SE

T

3.9KR4503

R4492

10K

RXIN

RE

SE

T_V

HF

_PA

_1

c

4455

Vac

C4451

C4499100pF

C4521100pF

CLK

Vac

C4444

C4502.015uF

R4474

100K

R4513

10K

2200pFC4503

R451151

J4401-11

FE

CT

RL_

1

FE

CT

RL_

2F

E_C

NT

L_2_

VH

F_P

A_1

100pFC4459

Vac

C4470

R44750

C451036pF

D4471

39pFC4442

R4482200K

R4512

470

K9V1_UHF_PA_1

Vac

R4471

10K

36pF

R4506

C4472

TP4532

R4409

100K

C44986.8pF

FE

_CN

TL_

1_V

HF

_PA

_1

DATAK9V1

D4451

VOUT

LM50

U4502

GN

D3

PO

S1

2

L4493

17nH

1

Vac

C4452 Vac

C4463

L4473

43.67nH

TEMPSENSE

C4466Vac

D4452

2200pFC4506

100KR4483

J4401-33

TP4530

C4474

10K

R4504

12pF

L4472

17nH

11KR4491

5.6pFC4496

3601

C4492

100pF

Vac464

82

Vac

C4465

R4496

68K

Q4471

R4484

C449110pF

TEMPSENSE_UHF_PA CSX_VHF_PA_1

5.6K

R4501

C4507100pF

Q4472

DATA_VHF_PA_1

10pFC4494

453

17nH

L4491

CSX

C44752pF

VA

R218

VA

R324

VG15

6V

L19

VLI

M

RS

RSET31

23R

X2

T1

30TEMP

14V10

16V45

V5E

XT17

VA

R120

F168

8G

ND

1

25GND2

4IN

TN

A22

11Q

10QX

RF

IN1

21

CEX

3C

I

5C

J

7C

L

26CLK

12CQ

CQX1328

DATA

9

U4501

32ANO

27BPOS

29H99S-4

1uF

C4504.02uF

C4505

C4441

L4492

17nH

RX_IN_VHF_PA_1

30pF

C4469100pF

VR44735.6V

C444812pF

R4523

R4502200K

Vac

C44436.8pF

1000pFC4522

4.3KR4473

J4401-22

5.6VVR4471

D4472

CLK_VHF_PA_1

R4457120

PCIC_MOSBIAS_19V3

9V3

ALT

PA_PWR_SET

9V3

A+

A+

9V3

9V3

0.75 VDC

9.2 VDC

3.1 VDC (44W)2.2 VDC (28W)

ZWG0130271

Figure 4-18. UHF (403-470MHz) Power Amplifier Schematic Diagram

Vac

C4520C46300.1uF

100pFC4410

TXINJ

PA_PWR_SET

R4630

Vac

9V3

C44971000pF

57R01L4440

C4407

BIAS_2_UHF_PA_1

0.1uF

R4416

R442110

100

Va

R

1

3

Q4441MRF650

4

2

30pF

C4431

Vac

C4456

620

R4425

R4422

620

100pF

C4417

C44781000pF

1000pFC4414

R4485120120

R4486

L454157R01

Vac

R4607

14VD1

2VG1

3VG2

200

R4405

8NC1

9NC2

10NC3

15NC4

16RFIN

6RFOUT1

7RFOUT2

1VCNTRL

11G2

4G

ND

15

GN

D2

12G

ND

313

GN

D4

C4446100pF

09Z67U4401

R4414

Vac

Vac

C4447

C446039pF

C44951000pF

TX_INJ_UHF_PA_1

24KR4632

100R4415

30pFC4486

R4601

4.7

C445016pF

Vac

C4457

100pFC4439

57R01

L4402

C4412100pF

3 4 5 7 8

MOSBIAS_2

Q44216

2

1

Vac L4474

R449751

R4602

4.7Vac

R4433

VR44725.6V

L4401

11.03nH

Vac

R44125.6K

33pFC4449

Vac

D4403

Vac R4411

C44090.1uF

57R01L4421

Vac

C4455

1uFC4423

Vac

D4402

R4431

PA_PWR_SET_1_UHF_PA_1Vac

Vac

C4461

10uFC4436

VacC4424

C4462

R4633

Vac

C4632

Vac

Vac

R4459

TP4537

CNTLVLTG_UHF_PA_1

0.1uFC4418

C4425.022uF

TP453

C4416.022uF

620

R4424

.033uFC4602

Vac

R4408100pF

R450710K

C4426

TP4536

C4476

C4401

Vac

100pF

PASUPVLTG

L4543

R44284.7K

13.85nH

Vac R4481

Vac

C4437Vac

C4453

30pFC4484

15

R4402

9V3_UHF_PA_1

R449551

30pFC4432

C44380.1uF

L4457R

Q4473

CNTLVLTG

C4488100pF

R4476 Vac

C4

R4423

36pF

620

C4419

13.85nH

C443527pF

L4441

30pFC4487

C4420

390nH

43pF

L4411

R4403300

C448530pF

39pFC4434

Vac

Vac

C4490

3.3K

R4514

R44883K

R4487100K

Q4451

30pFC4482

D4

R4600

4.7

10K

R4427

TP4533

100pFC4483

10K

R4401

R4480

300

C4421.033uF

PASUPVLTG_UHF_PA_1

R46311K

7G1

8G2

9G3G4

10

S1

S2

S3

S4

MRF5015Q4431

D

G

100pF

C4404

Vac

C4493

Vac

C4489

C44033.9pF

L4403

390nH

3000pF

17nHL4437

C4481

C4422100pF

ALT

Load

PA_PWR_SET

Load

9V3

9V3

PCIC_MOSBIAS_1

PASUPVLTG

9V3

4 to 6 dBm

3.7 to 3.9 VDC

4.5 VDC (44W)4.4 VDC (28W) 6.5 VDC (44W)

6.2 VDC (28W)

2.4 to 2.6 VDC

3.11 VDC (44W)2.2 VDC (28W)

4-28

Tab

CiR

C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0

F F F F

F

F F F F FF F F F

F F F FF F F

F F F F F F F F

F F

Description

C3152 2113741F49 10nF C3155 2113741F49 10nF C4001 2113740F09 1.8pF C4002 2113740F39 33pF C4003 2113740F41 39pF C4004 2113740F42 43pF C4005 2113740F42 43pF C4006 2113740F42 43pF C4007 2113740F41 39pF C4008 2113741F25 1nF C4009 2113740F51 100pF C4010 2113741F13 330pF C4011 2113741F37 3.3nF C4012 2113741F13 330pF C4013 2113741F37 3.3nF C4014 2113740F51 100pF C4015 2113740F51 100pF C4017 2113740F09 1.8pF C4018 2113740F29 12pF C4019 2113740F35 22pF C4020 2113740F40 36pF C4021 2113740F40 36pF C4021 2113740F51 100pF C4022 2113740F40 36pF C4023 2113740F35 22pF C4024 2113741F25 1nF C4025 2113740F11 2.2pF C4026 2113740F09 1.8pF C4027 2113740F09 1.8pF C4029 2113740F09 1.8pF C4030 2113740F09 1.8pF C4031 2113740F30 13pF C4051 2113740F27 10pF C4052 2113740F49 82pF C4053 2113740F32 16pF C4054 2113740F32 16pF C4202 2113741F49 10 nF C4203 2113741F49 10 nF C4204 2113740F51 100pF C4205 2113741F49 10nF C4206 2311049J25 10uF C4208 2113743E20 100nF C4209 2113743E20 100nF C4210 2104993J02 2.2uFC4211 2113743E20 100nF C4212 2113743E05 1.8nF C4213 2311049A09 2.2uF C4214 2311049A09 2.2uF C4215 2311049A09 2.2uF C4221 2109720D01 100nF

CircuitRef


le 4-4. UHF B1 Radio Parts List

rcuitef


101 2113740F51 100pF 107 2113741F25 1nF 112 2113743E20 100nF 121 2113743E20 100nF 122 2113743E20 100nF 131 2113740F35 22pF 132 2113740F35 22pF 141 2113743E20 100nF 151 2113741F49 10nF 201 2311049A57 10uF 204 2113743E20 100nF 212 2311049A57 10uF 221 2113743E20 100nF222 2113743E20 100nF 223 2113743E20 100nF 224 2113740F51 100pF 225 2113743E20 100nF 226 2113743E20 100nF 227 2113743E20 100nF 231 2113743B29 1uF 232 2113743E20 100nF 234 2113743E20 100nF 235 2113743E07 22nF 236 2113743E10 33nF 241 2113743E20 100nF 243 2113740F51 100pF 244 2113743E20 100nF 245 2113743E20 100nF 246 2113741F49 10nF 252 2311049A07 1uF 254 2113743E20 100nF 255 2113743E20 100nF 261 2113743E20 100nF262 2113740F49 82pF 265 2113743E20 100nF 267 2113741F49 10nF 271 2113741F49 10nF 272 2113743E20 100nF 273 2113741F37 3.3nF 275 2311049A99 47uF 276 2113741F25 1nF 277 2113741F25 1nF 421 2113743N48 82.0pF 422 2113741F17 470pF 423 2113741F17 470pF 426 2113743L09 470pF 427 2113743L09 470pF 428 2113743N48 82.0pF

C0429 2113743L09 470pF C0430 2113741F17 470pF C0431 2113741F17 470pF C0445 2113743L09 470pF C0446 2113743L09 470pF C0447 2113743L09 470pF C0448 2113743L09 470pF C0449 2113743L09 470pF C0470 2113743L09 470pFC0471 2113743L09 470pFC0472 2113743L09 470pF C0473 2113743L09 470pF C0474 2113743L09 470pF C0476 2113743L09 470pFC0477 2113743L09 470pF C0478 2113743L09 470pF C0482 2113743L09 470pF C0483 2113743L09 470pF C0484 2113741F17 470pFC0485 2113743L09 470pFC0486 2113743L09 470pF C0487 2113743L09 470pF C0488 2113743L09 470pFC0490 2113743L09 470pF C0491 2113743L09 470pFC0492 2113743L09 470pF C0493 2113743L09 470pF C0494 2113743L09 470pF C0495 2113743L09 470pF C0496 2113743L09 470pF C0497 2113743L09 470pF C0499 2113743L09 470pF C0501 2113741F49 10nF C0502 2113743L09 470pF C0503 2113743L09 470pF C0504 2113743L09 470pF C0505 2113743L09 470pF C0506 2113743L09 470pF C0508 2113743L09 470pF C0509 2113743L09 470pF C0510 2113741F17 470pF C0511 2113743L09 470 PF C0512 2113743L09 470 PF C0513 2113741F17 470pFC0514 2113743L09 470 PFC0515 2113743L09 470pF C0516 2113741F49 10nF C0517 2113743N48 82pF C0518 2113743L09 470pF C0541 2311049A05 470nF

CircuitRef


C0542 2311049A99 47uFC0591 2113743E20 100nC0592 2113743E20 100nC0593 2113743E20 100nC0601 2113741F17 470pC0603 2380090M24 10uFC0611 2311049C06 22uFC0612 2113743E20 100nC0622 2311049A99 47uFC0641 2113741F17 470pC0644 2311049A97 33 UC0645 2113743E20 100nC0652 2311049A97 33 UC0654 2311049A57 10uFC0655 2113743E20 100nC0661 2311049C05 47uC0662 2113741F49 10nFC0663 2113743E20 100nC0671 2113743E20 100nC0681 2113743E20 100nC3100 2113741F25 1nF C3102 2113740F31 15pFC3103 2113740F39 33pC3104 2113743E20 100nC3110 2113740F37 27pFC3111 2113743E20 100nC3112 2113740F49 82pFC3114 2113740F33 18pFC3115 2113740F35 22pFC3116 2113743E20 100nC3121 2113743E20 100nC3122 2113743E11 39nFC3123 2113743E11 39nFC3132 2113743E20 100nC3133 2311049A57 10uFC3134 2113743E20 100nC3135 2113740L30 33pFC3136 2113740L29 30pFC3137 2113743E11 39nFC3138 2311049A40 2.2uC3139 2113743E20 100nC3140 2113743E20 100nC3141 2113743E20 100nC3142 2113743E20 100nC3143 2113740F53 120pC3144 2113743E20 100nC3145 2113743E20 100nC3146 2113741F41 4.7nC3147 2113743E20 100nC3151 2113741F49 10nF

CircuitRef

MotorolaPart No.

4-29

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

pF 0pF pFpF0pF 8pF 0pF 0pF pF 0pF pF pF pF pF 0pF pF 0pF pF

6pF 8pF 0 pF nF

2nF nF F

2nF 0pF pF 0pF nF 0nF0nF iode, Varactor iode, Varactoriode, Varactoriode, Varactoriode, Varactoriode Schottky iode Dual iode Dual iode Dual iode Dual iode Dual iode Dual iode Schottky iode, Varactor iode, Varactor ual Schottky iode, Varactoriode, Varactor

Description

D4051 4886143B01 Diode MixerD4201 4802233J09 Diode Tripple D4261 4802245J22 Diode, VaractorD4451 4880236E05 Diode Schottky D4452 4880236E05 Diode Schottky D4453 4880236E05 Diode SchottkyD4471 4802482J02 DiodeD4472 4802482J02 DiodeE0271 2484657R01 Ferrite BeadE0272 2484657R01 Ferrite BeadE0631 2484657R01 Ferrite BeadFL3101 9180112R16 2-Pole Crystal Filter,

44.85MHzFL3102 9180112R16 2-Pole Crystal Filter,

44.85MHzFL3111 9180469V04 Filter, 455kHz FL3112 9180469V06 Filter, 455kHz FL3114 9180468V06 Filter, 455kHz FL3115 9180469V03 Filter, 455kHz J0401 0902636Y02 12-Pin Flexible Connector J0451 0902636Y01 Flexible Connector, Side

EntryJ0501 0986105B01 20-Pin Connector J0551 0905505Y04 Connector, Zif Horizontal J0601 0986165B01 DC Power ConnectorJ4401 0986166B02 Mini-UHF RF ConnectorL3101 2462587T25 620nHL3111 2462587T25 620nHL3112 2462587T25 620nHL4003 2462587T23 470nHL4008 2462587T23 470nHL4051 2462587T17 150nHL4053 2462587X46 27nHL4054 2462587X43 15nHL4201 2462587Q42 390nHL4221 2462587P25 12uHL4225 2462587T40 33nHL4231 2462587Q20 2.2uHL4301 2462587T22 390nHL4302 2462587T22 390nHL4303 2460593C01 Teflon ResonatorL4304 2462587T22 390nHL4305 2462587T22 390nHL4311 2462587T22 390nHL4312 2460593C01 Teflon ResonatorL4313 2462587T22 390nHL4331 2462587T09 33nHL4332 2462587T36 15nHL4333 2462587T22 390nHL4361 2462587T22 390nH

CircuitRef


4222 2109720D14 100nF4224 0882422W23 1.0uF4225 2113741F18 510pF 4227 2113740F51 100pF 4228 2113743E20 100nF 4230 2104993J02 2.2uF 4231 2113741F49 10nF 4232 2113741F49 10nF 4233 2104993J02 2.2uF 4234 2113741F49 10nF4242 2113740F51 100pF4243 2113740F51 100pF 4244 2113740F51 100pF 4245 2113740F51 100pF 4246 2113740F51 100pF 4252 2113741F25 1nF 4253 2311049A56 4.7uF 4254 2113743E20 100nF 4255 2113740F51 100pF 4261 2113740L37 62pF 4262 2113740F59 220pF 4263 2113740F07 1.5pF 4287 2113740F51 100pF 4289 2113743E20 100nF4301 2113740F51 100pF 4302 2113740L16 8.2pF 4303 2113740L16 8.2pF 4304 2113740L08 3.9pF 4305 2113740F03 1pF 4306 2113740L01 2pF 4307 2113740F51 100pF 4308 2113743E20 100nF 4309 2113740F51 100pF 4311 2113740F51 100pF 4312 2113740F29 12pF 4313 2113740F03 1pF4314 2113740F07 1.5pF 4315 2113740F51 100pF 4316 2109720D14 100nF 4317 2113740F51 100pF 4318 2113743K16 220nF 4321 2113740F03 1pF 4322 2113740F51 100pF 4323 2113741F25 1.0nF4324 2113740L05 3pF 4325 2311049A56 4.7uF 4331 2113740L14 6.8pF 4332 2113743E20 100nF 4333 2113740F44 51pF 4334 2113740F44 51pF

CircuitRef


C4335 2113740F51 100pF C4336 2113743E07 22nF C4337 2113740F44 51pF C4338 2113740F44 51pF C4339 2113740F03 1pF C4351 2113740F51 100pF C4352 2113743E20 100nF C4353 2113743E20 100nF C4354 2104993J02 2.2uF C4355 2104993J02 2.2uF C4361 2113740F51 100pF C4362 2113743K16 220nF C4363 2113740F03 1pF C4371 2113743K16 220nF C4372 2113740F51 100pFC4373 2113740F03 1pF C4374 2113740F03 1pF C4375 2113743E20 100nFC4381 2113743E20 100nF C4382 2113740F51 100pF C4383 2113740F51 100pF C4401 2113740F51 100pF C4403 2113740F17 3.9pF C4404 2113740F51 100pF C4407 2113743E20 100nF C4409 2113743E20 100nF C4410 2113740F51 100pF C4412 2113740F51 100pF C4414 2113741F25 1nF C4416 2113743E07 22nF C4417 2113740F51 100pF C4418 2113743E20 100nF C4419 2113740F40 36pF C4421 2113741A57 33nF C4422 2113740A55 100pF C4423 2311049A08 1uF C4425 2113743E07 22nF C4426 2113740F51 100pF C4431 2113740A40 30pF C4432 2111078B27 30pFC4435 2111078B25 27pF C4436 2311049A45 10uF C4438 2113743E20 100nF C4439 2111078B42 100pFC4441 2180464E40 30pF C4442 2180464E34 39pF C4443 2111078B09 6.8pFC4446 2113740F51 100pF C4448 2180464E65 12pF C4449 2111078B23 24pF

CircuitRef


C4450 2111078B19 16C4459 2113740A55 10C4460 2111078B32 39C4472 2111078B31 36C4473 2113740F51 10C4474 2113740F23 6.C4475 2113740F10 2.C4479 2113740F51 10C4482 2113740F38 30C4483 2113740A55 10C4484 2113740F38 30C4485 2113740F38 30C4486 2113740F38 30C4487 2113740F38 30C4488 2113740F51 10C4491 2111078B13 10C4492 2111078B42 10C4494 2180464E63 10C4496 2111078B07 5.C4498 2111078B09 6.C4499 2113740F51 10C4502 2113743E03 15C4503 2113741F33 2.C4504 2113743E06 22C4505 2311049A07 1uC4506 2113741F33 2.C4507 2113740F51 10C4510 2111078B31 36C4521 2113740F51 10C4602 2113741A57 33C4630 2113743E20 10C4632 2113741F25 1.CR4301 4805649Q13 DCR4302 4862824C01 DCR4303 4862824C01 DCR4311 4802245J22 DCR4321 4862824C01 DD0101 4880236E05 DD0151 4813833C02 DD0179 4813833C02 DD0621 4813833C02 DD0651 4813833C02 DD0660 4813833C02 DD0661 4813833C02 DD3101 4880154K03 DD4001 4862824C01 DD4002 4862824C01 DD4003 4880154K03 DD4004 4862824C01 DD4005 4862824C01 D

CircuitRef

MotorolaPart No.

4-30

L43L44L44L44L44L44L44L44L44L44L44L44L44L44L44L45Q0Q0Q0Q0Q0Q0Q0Q0Q0Q0Q0Q0Q0Q0Q3Q3Q3Q3Q4Q4Q4Q4Q4Q4Q4Q4Q4Q4Q4R0R0R0R0R0

CiR

Description

R3108 0662057A44 620R3111 0662057A75 12KR3112 0662057A01 10 R3115 0662057A39 390 R3116 0662057A37 330 R3117 0662057A83 27KR3118 0662057A69 6.8KR3130 0662057A18 51 R3132 0662057A77 15KR3133 0662057A71 8.2KR3134 0662057A73 10KR3135 0662057A51 1.2KR3144 0662057A58 2.4KR3145 0662057A61 3.3KR3146 0662057A45 680 R3147 0662057A75 12KR3151 0662057A73 10KR3152 0662057A73 10KR3153 0662057A73 10KR3154 0662057A73 10KR4001 0662057A97 100KR4002 0662057A37 330R4003 0662057A63 3.9KR4004 0662057A59 2.7KR4005 0662057A73 10KR4006 0662057A35 270R4007 0662057A21 68R4008 0662057A13 33R4009 0662057A29 150R4010 0662057A29 150R4011 0662057A35 270R4012 0662057A97 100KR4013 0662057A35 270R4014 0662057A01 10R4022 0662057B47 0R4051 0662057A18 51R4052 0662057B47 0R4060 0662057B10 330KR4201 0662057A29 150 R4203 0662057A17 47 R4204 0662057A17 47 R4206 0662057A85 33KR4211 0662057B47 0 R4221 0662057A29 150 R4222 0662057A42 510 R4223 0662057A21 68 R4228 0662057A89 47KR4241 0662057A33 220 R4251 0662057A87 39KR4252 0662057A84 30K

CircuitRef


71 2462587T13 68nH01 2460591B04 Airwound Coil, 4-turns 02 2484657R01 Ferrite Bead03 2462587T22 390nH11 2462587T22 390nH21 2484657R01 Ferrite Bead36 2484657R01 Ferrite Bead37 2460592A01 Airwound Coil, 3-turns 40 2484657R01 Ferrite Bead41 2460591C23 Airwound Coil, 5-turns72 2460592A01 Airwound Coil, 3-turns 73 2460591N36 Airwound Coil, 5-turns91 2460592A01 Airwound Coil, 3-turns 92 2460592A01 Airwound Coil, 3-turns 93 2460592A01 Airwound Coil, 3-turns 43 2460591C23 Airwound Coil, 5-turns

110 4880048M01 NPN 151 4880048M01 NPN 171 4880048M01 NPN 173 4880052M01 NPN Darlington177 4880048M01 NPN 181 4880048M01 NPN 183 4880048M01 NPN 185 4880048M01 NPN 271 4813824A10 NPN641 4880048M01 NPN 661 4805921T02 DUAL 662 4813824A10 NPN 663 4880048M01 NPN 681 4880052M01 NPN Darlington 101 4813827A07 NPN102 4813827A07 NPN151 4880048M01 NPN DIG 152 4880048M01 NPN DIG 003 4813827A07 NPN301 4805218N63 Diode Dual Schottky 331 4813827A07 NPN332 4813827A07 NPN333 4802245J50 NPN421 5105385Y91 LDMOS Power Amplifier431 4805537W01 Bipolar Power Amplifier441 4880225C30 Bipolar Power Amplifier471 4880048M01 NPN 472 4805128M27 PNP 473 4813824A10 MMBT3904101 0662057A73 10K102 0662057A65 4K104 0662057A73 10K105 0662057A97 100K108 0662057A57 2K

rcuitef


R0109 0662057B47 0R0111 0662057B47 0 R0113 0662057A73 10K R0114 0662057A73 10KR0115 0662057A73 10KR0117 0662057A63 3k9R0121 0662057A97 100K R0131 0662057B46 10M R0132 0662057B10 330k R0151 0662057A82 24KR0152 0662057A82 24KR0170 0662057A73 10KR0171 0662057A65 4KR0172 0662057A73 10kR0173 0662057A65 4KR0174 0662057A73 10KR0175 0662057A73 10KR0176 0662057A84 30KR0177 0662057A65 4KR0178 0662057A89 47K R0179 0662057A89 47K R0181 0662057A65 4kR0182 0662057A89 47K R0183 0662057A65 4kR0184 0662057A89 47K R0185 0662057A65 4kR0186 0662057A89 47K R0201 0662057A25 100 R0202 0662057A43 560R0204 0662057A43 560 R0205 0662057A73 10KR0206 0662057A73 10KR0207 0662057A57 2KR0208 0662057A57 2KR0211 0660076E70 7.5KR0212 0660076E70 7.5KR0221 0662057A82 24K R0222 0662057A82 24K R0223 0662057A84 30K R0224 0662057A71 8KR0226 0662057B22 1MR0227 0662057B22 1M R0241 0662057A89 47KR0242 0662057B47 0R0251 0662057A89 47KR0252 0662057A91 56KR0253 0662057A97 100KR0261 0662057A73 10KR0262 0662057A97 100KR0265 0662057A82 24K

CircuitRef


R0267 0662057A89 47KR0268 0662057A73 10KR0269 0662057A41 470 R0273 0662057A82 24KR0275 0662057A73 10KR0276 0662057A77 15KR0401 0662057A33 220 R0407 0662057M26 10 R0408 0662057A25 100 R0409 0662057M26 10 R0467 0662057M26 10R0468 0662057M26 10 R0481 0662057B47 0 R0482 0662057B47 0 R0510 0662057A65 4KR0511 0662057A97 100KR0512 0662057A77 15KR0525 0662057A97 100KR0527 0662057B47 0 R0528 0662057B47 0 R0529 0662057A89 47KR0530 0662057B47 0 R0531 0662057A43 560 R0533 0662057B47 0R0535 0662057A49 1KR0537 0662057A33 220 R0538 0662057A33 220R0539 0662057A65 4KR0541 0662057A83 27KR0591 0662057A82 24KR0592 0662057A01 10R0611 0662057A91 56K R0612 0662057A65 4KR0621 0662057A82 24K R0641 0662057A73 10KR0642 0660076E70 7.5KR0643 0660076E51 1.2KR0651 0662057A01 10 R0652 0662057A01 10 R0661 0662057A49 1KR0662 0662057B02 150KR0671 0662057A84 30KR0672 0662057A73 10KR0681 0662057A79 18KR0682 0662057A93 68KR3101 0662057A75 12KR3102 0662057A01 10 R3105 0662057A25 100 R3106 0662057A83 27KR3107 0662057A69 6.8K

CircuitRef

MotorolaPart No.

4-31

vicing only

rs with an asterisk indicate e not field replaceable be calibrated with uipment after installation. parts have been replaced in quency at temperature

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

MOS

mperature Sensor iodeener Quadner Quad

iode ner Quad

iodeiodeiodeiode ansient Suppressoriodener Diode

rystal Oscillator, 38.4 kHzrystal Oscillator5 kHz Discriminator

rystal Oscillator, 16.8 MHz

Description

* Motorola Depot Ser

Reference designatocomponents which arbecause they need tospecialized factory eqRadios in which thesethe field will be off-freextremes.

4261 0662057B02 150K4301 0662057A67 5.6K4302 0662057A73 10K4303 0662057A12 30 4304 0662057A31 180 4305 0662057A01 10 4311 0662057A70 7.5K4312 0662057A67 5.6K4313 0662057A12 30 4314 0662057A35 270 4315 0662057B47 0 4321 0662057A91 56K4322 0662057A73 10K4323 0662057A73 10K4331 0662057A09 22 4332 0662057A81 22K4333 0662057A73 10K4334 0662057B47 0 4335 0662057A01 104336 0662057A49 1K4337 0662057B47 0 4338 0662057A33 2204339 0662057A09 22 4340 0662057A33 220 4341 0662057B47 0 4342 0662057A57 2.2K4343 0662057A49 1K4344 0662057A01 10 4345 0662057B47 04346 0662057A73 10K4347 0662057B47 0 4361 0662057A31 180 4401 0662057A36 300 4402 0662057A05 15 4403 0662057A36 300 4405 0662057A32 200 4409 0662057A97 100K4412 0662057A67 5.6K4415 0662057A25 100 4416 0662057A25 100 4421 0680194M01 10 4422 0611079A69 620 4423 0611079A69 620 4424 0611079A69 620 4425 0611079A69 620 4427 0662057A73 10K4428 0662057A65 4.7K4457 0683962T51 120 4473 0662057A64 4K4474 0662057A97 100K

CircuitRef


R4475 0662057B47 0 R4480 0662057A73 100KR4482 0662057B05 200KR4483 0662057A97 100KR4484 0662057A93 68KR4485 0662057C53 120 R4486 0662057C53 120 R4491 0662057A74 11KR4492 0662057A73 10KR4495 0680195M18 51R4496 0680194M23 82 R4497 0680195M18 51R4501 0662057A67 5.6KR4502 0662057B65 200KR4503 0662057A63 3.9KR4504 0662057A73 10KR4506 0662057A73 10KR4507 0662057A73 10KR4511 0680194M18 51R4512 0662057A41 470 R4513 0662057A73 10KR4514 0662057A61 3.3KR4600 0662057C19 4.7 R4601 0662057C19 4.7R4602 0662057C19 4.7R4631 0662057A49 1KR4632 0662057A82 24KSH4301 2605782V03 VCO ShieldSH4302 2605782V03 VCO ShieldT4051 2505515V03 Mixer 4:1T4052 2505515V04 Mixer 5:1U0101 5102226J56 Microprocessor* U0111 5102463J64 EEPROM* U0121 5186137B01 ROM U0122 5185963A21 SRAMU0141 5113805A30 REMUX U0211 5183222M49 Quad OpampU0221 5185963A53 ASFICU0251 5113806A20 MUX/DEMUXU0271 5109699X01 AUDIO PA U0611 5183308X01 Adjustable Voltage Regulator U0641 5183308X01 Adjustable Voltage Regulator U0651 5113816A07 5V RegulatorU0652 5113815A02 Under-Voltage SensorU3101 5186144B01 IF ICU3111 5113805A86 CMOS SwitchU3115 5113805A86 CMOS SwitchU4201 5185963A27 Fract-N U4211 5185963A33 Voltage RegulatorU4301 5105750U54 VCO

CircuitRef


U4401 5105109Z67 LDU4501 5185765B01 PCU4502 5185963A15 TeVR0151 4813830A15 DVR0501 4805656W09 ZVR0503 4805656W09 ZeVR0504 4813830A40 DVR0505 4805656W09 ZeVR0509 4813830A40 DVR0510 4813830A40 DVR0537 4813830A15 DVR0541 4813830A27 DVR0601 4813832C77 TrVR0621 4813830A15 DVR4471 4813830a15 ZeY0131 4880113R19 CY3101 4880606B09 CY3102 9186145B02 45Y4261 4880114R04 C

CircuitRef

MotorolaPart No.

4-32

This page is intentionally left blank.

4-33

C3002

C3004

C3005

C3006C3007

C3008

C3009

C3010

C3011

C3012C3013

C3014

C3015C3016

C3017

3018

C3019C3020

C3034

C3035

C3101

C3102

C3103

C3114

C3115

C3131

C3132

C3133

C3134

C3135

C3136

C3137

C3139

C3140

C3141

C3142

C3143 C3144

C3145

C3472

C3473

C3474

C3475

C3491 C3492

D3001

D3003

D3004

D3471

D3472

23

45

6FL3101

23

45

6FL3102

43 2

FL3112

FL3114

2 3

J3401

L300

2

L3032

L310

1

L3471

L3472

L3477

Q3001

R3001

R3002

R3003

R3004

R3005

R3006

R3007

R3008

R3009

R3013

R3014

R3015

R3031

R3101

R3106R3111

R3117

R3130

R3132

R3144

R3145

11

120

10

U3101

8 7114

U3111

8 7114

U3115

2

Y3102

ZWG0130227P

Figure 4-19. VHF (136-174MHz) Main Board Top Side PCB

C0101C0102

C0104

C0105

C0106

C0107

C0121

C0131

C0132

C0211

C0212

C0221 C0222

C0223

C0224

C0225

C0226

C0227

C0231

C0232

C0233

C0234C0235

C0236

C0241

C0242

C0243

C0244

C0245

C0246

C0251

C0252 C0253

C0255

C0261

C0262

C0267

C0421

C0441

C0442

C0443

C0444

C0445

C0446

C0447

C0448

C0449

C0451

C0452

C0453

C0454

C0455

C0456

C0457

C0458

C0459

C0460

C0461

C0462

C0463

C0464

C0466

C0467

C0468

C0470

C0471

C0472

C0473

C0474

C0476

C0477

C0478

C0482

C0483

C0484

C0486

C0487 C0488

C0493C0494

C0495

C0496

C0501

C0502

C0503

C0504

C0505

C0506

C0508

C0509

C0510

C0511

C0512

C0513

C0514

C0515

C0516

C0517

C0518

C0519

C0520

C0521

C0522

C0523

C0524

C0525

C0526

C0527

C0528

C0530

C0531

C0532

C0533

C0534

C0535

C0536

C0537

C0538

C0539

C0540

C0542

C0601

C0603

C0612

C0651

C0652

C0654C0655

CC3021

C3032

C3209

C3210

C3211

C3213

C3214C3215

C3221C3222

C3223 C3224

C3226

C3227

C3231

C3232

C3233

C3234

C3235

C3242

C3243

C3244

C3245

C3246

C3252

C3253

C3254

C3255

C3324

C3336

C3337

C3341

C3342

C3344

C3345

C3346 C3347

C3357

C3361C3362

C3363

C3364

C3365

C3400

C3401

C3402

C3403

C3404

C3407

C3408

C3409

C3410

C3411

C3412

C3413

C3414

C3417

C3418

C3420

C3422

C3423

C3425

C3426

C3428

C3434

C3435

C3436

C3437

C3438

C3439

C3440

C3441

C3443

C3444

C3445

C3446

C3447

C3455

C3456

C3458

C3478

C3501

C3506

C3507

C3508

C3509

C3510

D0201

D0651

D3031

D3341

D3361

D3362

1 18

J0451

2011

10

J0501

J0601

L0481

L0482

L3034

L3201 L3232

L3333

L3341

L3343 L3344

L3346

L3361

L3362

L3363

L3364

L3401

L3403

L3411L3412

L3413

L3414

L3421

L3422

L3431

L3432

L3433

L3443L3444

L3474

Q0110

Q0177Q0181Q0185

Q3304

5

2

6

8

13

7

4 Q3421

Q3471

Q3501

Q3502

R0101

R0102

R0104

R0105

R0106

R0108 R0109

R0110

R0114

R0115

R0116

R0128

R0131

R0132

R0170

R0181

R0182

R0185

R0186

R0211

R0212

R0221

R0222 R0223

R0224

R0241

R0242

R0251

R0252

R0253

R0261R0262

R0267

R0268

R0269

R0510

R0522

R0524

R0528

R0533

R0535

R0538

R0539

R0611R0612

R0651

R0652

R3211

R3221

R3222

R3223

R3227

R3242

R3251

R3252

R3263

R3335

R3336

R3341

R3342

R3361

R3362

R3363

R3364

R3400

R3401

R3402

R3403

R3404

R3405

R3406

R3407

R3408

R3409

R3410

R3411

R3413

R3415

R3416R3418R3419

R3424

R3425

R3431

R3432

R3458

R3461

R3471

R3505

R3506

R3507

R3508

R3512

R3513

R3514

R3515

R3516

SH

3301

3

4 6

12

T3001

3

46

12

T3002

1

7651

26

U0101

3217

16 1

U0121

871 14

U0211

1 37

2513

U0221

1618 9

U0251

9

U0271

1

6

5

U0611

1

6

5

U0641

3

2

1

U0651

458

U3211

1

16

8

9

U3401

U3502

VR0501

VR0503VR0505

VR0510

2 3

4

Y0131

1

1

1

4-34

C303520pF

IO3

IO4

5.1pFC3033

D3031

IO1 IO21

2

XFMRXFMRT3001

4

6

3

R3035

4

6

3

1

2

NU0

XFMRT3002

L3034

R3031

NU33nH

51

560R3021

C3021120pF

C301356pF

82pFC3034

NU18pF

C3031

0R3033

P_4_1

P_4_3

10NU

R3030

820NU

R3034

IF_VHF_FE_1

150nHL3032

820NU

R3032

R3036

NU1K

C3018

NU4.7pF

IF

C3032

NU13pF

C30252.7pFNU

150nH NU

L3025

L3031

560nH

Figu

D300112

3

FECNTL_1_VHF_FE_1VLTG

RXIN_VHF_FE_1

9V3_VHF_FE_1

C3003.0033uF

SP_2_3

9V3

1K

R3012

C30014.7pF

D3004 12

3

SP_3_2

SP_3_1

SP_1_3

K9V1__VHF_FE_1

C3002

RXIN

9.1pF

56pFC3004

.0033uFC3011

R3003

SP_2_1

1K

SP_1_2

SP_1_1

.001uF

C3012

C3022R3013

.01uF3.3K

Q3002

R30041.5K

.001uFC3008

S

S

4.7KR3011

C3009

R3005

330pF

NU10K

330pFC3010

390R3008

R3007

12

390R3006

470nHL3002

C3005100pF

SP_2_2SP_4_2

R3009

SP_3_3

100K10R3015

C3014

7.5pF

560

R3002

C3007.0033uF

.001uFC3019

56pFC3006

Q3001

51R3014

D3003100K

R3001

.001uFC3020

C3016

R3010

100pF

30

680

R3018

43pFC3017

100

100R3017

R3016

R30001.5K

K9V1

1

23

FECNTL_1

D3000

9V3_VHF_FE_2

RXINJ

.0033uFC3000

C3024C3023

NU3300pF

NU330pF

47KR3019

RXINJ_VHF_FE_1

56pFC3015

NC_D3000_1

In case of interference caused bystrong offchannel inband carriers,remove R3018 . This will improve intermodulation performance, but willdecrease specified RX sensitivity.For critical basestation applications remove R3018, R3016, R3017. This will further improve intermodulation performance but will further decrease specified RX sensitivity.

Note1:

3,6VDC

3,0 -7,5VDC

re 4-20. VHF (136-174MHz) Receiver Front End Schematic Diagram

4-35

CFUCJ455FNU

GND

3

IN1 OUT 2

FL3113

10K

R3152

QU

AD

IN

10

IFA

MP

_DE

C1

19

IFA

MP

_DE

C2

17

LIM

_DE

C2

2

GN

D 15

IFA

MP

IN

IFA

MP

OU

T

16

Q3152

C31390.1uF C3141

0.1uF

RSSI_VHF_IF_1

14

VDD

7

VSS

U3115-4MC74HC4066

12

CNTL

11 10

C3143120pF

C31400.1uF

C31440.1uF

1.2K Y310245B01455KHz2

1R3135

C31420.1uF

HC4066

9

DISCAUDIO_VHF_IF_1

3111-3

CFUCJ455D

GND

3

IN1 OUT 2

RSSI

FL3114

C3152.01uF

.01uFC3151

R315310K

14

VDD

7

VSS

U3115-1MC74HC4066

13

CNTL

12

0.1uFC31453.3K

R3145

BWSELECT_VHF_IF_1

DISCAUDIO

3

GN

D1

GN

D2

4

1 IN 2OUT

BWSELECT

CFWC455FFL3115

HC4066

10

5

43 VDD

14

VSS

7

3111-4

U3115-2MC74HC4066

CNTL

C31470.1uF

C31464700pF

R31442.4K

C3155.01uF

Q3155NU

10K

R3155

R3151

1.2KNU

10KR3154

R3147

12K

Q3151

CNTL

6

8 9VDD

14

VSS

7

U3115-3MC74HC4066

680

R3146

9V3

9V3

9V3

C

12.5kHz 0VDC20/25kHz 5VDC

Figure 4-21. VHF (136-174MHz)Receiver IF Schematic Diagram

C313630pF

R310210

C31139.1pFNU

100NU

100

R3104

R3105

R3107

6.8K

OS

CO

UT

3

RF

IN

1

RF

IN_D

EC

2

RS

SIO

UT

5

RS

SI_

FE

ED

9

VC

C6

LIM

IN

14

LIM

OU

T

11

LIM

_DE

C1

13 1

MIX

OU

T

20

OS

CIN

4

AU

DIO

OU

T

8

AU

DIO

_FE

ED

7 18

U3101

18pFC3114

0.1u

FC

3134

OUT 2

FL3112CFWC455D

GN

D1

3 4

GN

D2

IN1

33pF

C3135

R3115

GN

D2

2G

ND

34 5

GN

D4

3IN 6OUT

390

12R17FL3102

1G

ND

1

GN

D1

1 2G

ND

24

GN

D3

GN

D4

5

IN3

OUT6

R3117

12R1612R16FL3101

27K

Q3102

R31338.2K

R3134

10K

10R3112

5V

C3115

620nH

22pF

L3100

VSS

7

MC74

CNTL

6

8 VDD

14

U

Q3101

.039uFC3137

C3104

0.1uF

D3101

C3122

.039uF

9V3

C31110.1uF

R3114

NU100

1pFNU

C3131

L3101620nH

2.2pF

CFWC455G

GN

D1

3 4

GN

D2

IN1 OUT 2

C3101

FL3111

C3103

33pF

C313310uFC3132

0.1uF

MC74

12

CNTL

11

14

VDD

7

VSS

U

C31382.2uF

15KR3132

C3123.039uF

6.8K

R3118

12KR3111

5V_VHF_IF_1

R3130

13

CNTL

12

14

VDD

7

VSS

51

VDD

14

VSS

7

U3111-1

MC74HC4066

MC74HC4066

MC74HC4066

CNTL

5

43

U3111-2

R310627K

GND2

GND1

4

OUT3

IN1

Y310112R17

44.395MHz

9V3_VHF_IF_2

IFIN_VHF_IF_1

IF

0.1uF

C3116

330R3116

L3112

9V3_VHF_IF_1

620nH

620nH

620

L3111

C3121R3108

0.1uF

C3110

27pF

12KR3101

15pFC3102

82pF

9V3

C3112

5V

5V

9V3

9V3

5V

9V3

IFI

C3100

1000pF

NU

NU

3.9VDC

3VDC

0.75VDC0.75VDC

3VDC

4-36

C3245220pF

uF

51

2.2uF

55

C3233

C32152.2uF

C3232.01uF1uF

3231

0.1uFC3211

L3231

2.2uH

220pFC3243

VCOBIAS_2_VHF_FN_1

CLK

0.1uFC3254

MODIN_VHF_FN_1

C3234.01uF

9V39V3_VHF_FN_1

VSF

CSX

MODIN

2420pF

VCOBIAS_1_VHF_FN_1

PRESC_VHF_FN_1

CSX_VHF_FN_1

VSF_VHF_FN_1

VCOBIAS_1

C32534.7uF

VCOBIAS_2

.2pF3226

C32521000pF

DATA

CLK_VHF_FN_1

DATA_VHF_FN_1

VDDAVDDA_VHF_FN_1

2.2uF

PRESC

C3214

VDDA

VDDA

k

2.5VDC

Figu

(SOURCE)

C3212

.018uF

2.2

R32

C32

C3244220pF

2.2uF

C3227

C3213

100pF

47R3203

A1

5A2

4A3

K11 K22 K33

6

6.2KNU

D3201

100KNU

R3262

R3227

.0

0.1uF

C

C3225

1K

1uF

R3222

1.5pF

C3224

23 XTAL1XTAL224

C3263

21VBPASS

47V

CP

VMULT11514 VMULT2

12 VMULT3

11 VMULT4

VR

O13

25 WARP

35PVREF

18REFSEL

27SFBASE 26SFCAP

30SFIN

28 SFOUT

37 TEST1

38 TEST2

17NC1

29NC2

31NC3

44P

D_G

ND

PD

_VD

D5

PREIN 32

33P

RE

_GN

D34

PR

E_V

DD

6

36D

VD

D

19 FREFOUT

45 IADAPT

16 INDMULT

43 IOUT

LOCK4

10MODIN41 MODOUT

20A

VD

D

40BIAS1

39BIAS2

42CCOMP

9CEX

8CLK

7DATA

DG

ND

46 ADAPTSW

22A

GN

D

48 AUX1

1 AUX2

2 AUX3

3 AUX4

U3201C3223

1uFNU

C3221.022uF

10uF

33K NU

C3206

5V_VHF_FN_2

R3206

47KNU

R3226

R3201

47

BWSELECT

C32102.2uF

C32510.1uFNU

TP32021

100

R3223

C3202.01uF

56pFNU

150K

C3241

R3261

D3261

LOCK

5V

C326162pF

C32090.1uF

.01uFNU

C3235

C3207

22pFNU

C3205.01uF

BWSELECT_VHF_FN_1

C3203

.01uF

100NU

R3263

VCTRL_VHF_FN_1

2

FADJ

4GND

3OUT

1VDD

VCOMOD

NUY3262

OSC_16.8MHZ

R322847KNU

L3232

NU2.2uH

LOCK_VHF_FN_1

VCTRL

TRB C322

R3252

330K

TRB_VHF_FN_1

C3262220pF

1OUTPUT

2SENSE 3

SHUTDOWN

16_8MHz

65V_TAP

5ERROR

7FEEDBACK

GND

4

8INPUTU3211

5V_VHF_FN_1

16_8MHz_VHF_FN_1

VCOMOD_VHF_FN_1

C32220.1uF

0

R3211

390nHL3201

2 1

C3246220pF

16.8MHz

Y3261XTAL

TP32011 8

C

R3242 R32410 100

R320447

0.1uF

C3208

R3221

1.8K

C32280.1uF

5V

5V

200

FRACN

5V Reg

2.5 - 11VDC

5VDC (Locked)

0VDC (Unlocked)

4,95VDC (R)0VDC (T)

4.52VDC (R)2.62VDC (T)

0VDC (R)4.91VDC (T)

+1dBm

13.30VDC

11.28VDC6.83VDC

4.97VDC

1.1 - 4.1VDC

- 2 to +7dBm

3.63 VDC

5VDC

5VDC

5VDC

0VDC2.90VDC

3.42VDC

re 4-22. VHF (136-174MHz) Fractal-N Schematic Diagram

4-37

C3364

18pF

L33418nH

1uH

C33423pF

L3344

VSF

62

1000pF

.2K

C3365

3364

VCOBIAS_1

VCTRL_VHF_VCO_1

R3353

100K

35.5nH

.01uFC3324

L3346

D3341

C3346.01uF15K

R3336

L336268nH

L3351

1uH

.022uFC3352

9V3_VHF_VCO_2

56nHL3361

VCOBIAS_1_VHF_VCO_1

.01uF

VCOMOD

VCTRL

C3347

VCOBIAS_2

20pF

C3345

R3354

VCOMOD_VHF_VCO_1

150K

68pFC3363

VDDA

9V39V3_VHF_VCO_1

100

R3343

VCOBIAS_2_VHF_VCO_1

D3361

39

R3342

1.8pFC3344

L336356nH

L3343180nH

.022uF

9V3_VHF_VCO_3

C3356

VDDA_VHF_VCO_1

VSF_VHF_VCO_1

C3357

1uH

7.5pF

L3364

0VDC (R)1.92VDC (T)

4.52VDC (R)2.62VDC (T)

2.5 - 11VDC

4.54VDC

4.97VDC

Figure 4-23. VHF (136-174MHz)Voltage Controlled Oscillator Schematic Diagram

TXINJ_VHF_VCO_1

5.6pFC3318

D33

2

R3314

R

NU10

C3335.01uF

R3341

220

5.1pFC3306 C3301

15pFNU

PRESC_VHF_VCO_1

C33411000pF

C33370.1uF

R3307220NU

UMC5N

2

4

1

3

Q3303

68nHL3331

C333110pFNU

100nH

.022uF

L3318

C331133

R3335

C33163.3pF

0R3308

1K

R3323

R3362

PRESC

47

330pFNU

C3304

.01uFC3315

C3303

15pF

5.6pFC3362

RXINJ_VHF_VCO_1

L3332100nH

100nHR3303

L3302

2.2K

RXINJ

R330175

C3302

39K

6.8pF

R3355

R3363

20K

5.6pFNU

C3305

R335612K

1uH

L3333

C3334.022uF

.01uF

C3355

NUQ3302

C3314

TXINJ

6.8pF

22NU

R3316

R3306

0L3301

18nH

20KR3351

47KNU BFQ67W

Q3304R3319

C33330.1uF

C33320.1uF

100NU

R3312

C33120.1uF

NU

100nHNU

15TX_EMITTER

1TX_IADJ10TX_OUT

13TX_SW

14

VCC_BUFFERS

18

VCC_LOGIC

L3311

5RX_BASE6RX_EMITTER

2RX_IADJ8RX_OUT

7RX_SW

3SUPER_FLTR

TRB_IN19

16TX_BASE

4COLL_RFIN

20FLIP_IN

11

GN

D_B

UF

FE

RS

9

GN

D_F

LAG

GN

D_L

OG

IC

17

12 PRESC_OUT

U3301VCO IC

1KR3304

R3302

NU

100

R3305220

R3311

100

10KNU

R3317

22

R3315220NU

R3318

C3361

1000pF

220

R3361

Q3301

10K

NU1K

R3321

R3313

.01uFC3336

C3348

L33451uH

.01uF

TRB

C3313330pF

NU

47

1000pF

R3331

C3319

33nHL3317C3317

33pF

TRB_VHF_VCO_1

C3351

R3352.01uF

VSF

12K

VSF

VSF

5

7.44VDC (R)0VDC (T)

9.14VDC (R)0VDC (T)

3.83VDC (R)0VDC (T)

9.12VDC

2.18VDC (R)0VDC (T)

1.49VDC (R)0VDC (T)

0VDC (R)4.91VDC (T)

0VDC (R)4.52VDC (T)

4.52VDC (R)0VDC (T)

4.40VDC

1.53VDC (R)0VDC (T)

0.92VDC (R)0VDC (T)

4.78VDC (R)4.22VDC (T)

4.78VDC (R)4.27VDC (T)

2.56VDC (R)2.66VDC (T)0 - 5dBm (T)

- 2 to 7dBm (T)

4-38

Reverse: 0.254x23.91

Spacing: 0.254

Forward: 0.254x22.674

.685

Center: 1.905x29.03

J3401

C349743pF

20pF

C3498 C349647pF

RXIN_VHF_PA_1

_PA_1

L349151nH

Q3472

1000pF

C3474D3472

D3471

C3473150pF

C3472

RXIN

150pF

L3492 L3493

51nH51nH

FECNTL_2

K9V1

2200

pFC

3502

1uF

RESET

C3505

R350239K

R3501

6.8K

C345310pF NU

RESET_VHF_PA_1

FECNTL_1_VHF_PA_1

1

TP3404

82pF

FECNTL_1

C3467

R349047K

2200pFC3506

R35031K

C35042200pF

C35032200pF

18nHL3445

C345268pF

C345118pFC3450

68pF

C34661000pF

R346315K

23

1

VR3471

51R3473

FECNTL_2_VHF_PA_1

TEMPSENSE_CNTLR_1

100pFC3507

501

1000pFC3465

R34580

NUL347412nH

470

R3471 K9V1_VHF_PA_1

1.2uH

L3471R3474

51

11pFC3464

0NU

R3459150nHL3475

TEMPSENSE

PA_1

PA_1

R3511100K

D3451

R34600

L3476120nH NU

R3509 10K

C349116pFNU

10K NU

R3518

R351020K

18pFC3475

V45 16V5E

XT

17

VA

R1

20

VA

R2

18

VA

R3

24

15VG

VL

6V

LIM

19

11QX 10

RF

IN1

RS

21

RSET31

RX

23T

12

TEMP30

V10 1413CQXDATA28

F168 9

GN

D1

8

GND225

INT

4N

A22

Q

ANO32

BPOS27

CEX29

CI

3

CJ

5

CL

7

CLK26

CQ 12

U3501H99S-4

470pF

C3492

43R3457

R346162

D3452

100KR3517

47pFC3494

36pFC3490

R34640

48nHL3472

51nH

L3494

C3489

1.2uH

L3477 130pF150pFNU

C3488

L34731.2uH

1000pF

9V3

9V3

9V3

C3457

PCIC_MOSBIAS_1

PA_PWR_SET

18pFC3468

PA_PWR_SET_VHF_1

2.77VDC (50W)2.65VDC (28W)

0.75VDC

8.87VDC

3.77VDC (50W)2.68VDC (28W)

Figu

1.52

4x8.

751

1.524x20.6961.905x154.953x8.763

0.1uFC3437

33nHL3444

DATA_VHF

TP3402

Q3502

2200pF

Q3501

2200pF

C3509

C3508

R3406150K

C3458.01uF

100R3415

C3420

20

82pF

R3419

R3404

10K

2200pF

C34341uF

C3501

L341233nH

36pFC3449

Q34215105385Y70:

L3421

C3422

57R01

1000pF NU1uF

C3423

16.96nHL3422

R344210

R3401130

R3403130

TXINJ

9V3

C3443

820

220pF

R3414

R35041K

C34251uF

100R3416

4.22nH

L3413

L3414

27nHC3418

24pF

2200pFC3417

MOSBIAS_2

C344836pF

51

68nH

R3431

L3403

2200pF

6.8KNU

C3416

R3411

100R3405

R3514

620

.022uFC3410

R342568

R342468

C340818pF

C34

13.0

22uF

C3415.022uF

2200pF

C3404

D3455NU

0.1uF

C3424

C3426

L340139nH

2200pF

2200pF

C3401RFIN 6RFOUT1

7RFOUT21 VCNTRL

14 VD1VG1 2

3VG2

GN

D1

5G

ND

212

GN

D3

13G

ND

4

8

NC19

NC210

NC315NC4

16

5105109Z67:

U3401

11 G2

4

1000pFC3445

C34561000pF

L343236.54nH

12.77nHL3423

56R3434

C345556pF

TP3407

C34352200pF

C3402.022uF

5.6KR3412

57R01L344357R01

0.1uFNU

C3438C34391uF

R3413

2200pF

C3400

3.3K

1

CNTLVLTGCNTLVLTG_VHF_PA_1

TP3

TP3403

TXINJ_VHF_PA_1TP3401

1

680

R3508

R3506680

R3505680

R34441MEG

1MEGR3443

R3436120

2200pF

C3428

33pF NU

C3403

R3462

39K

R3513

620

620

R3433

R3516

C34325682pF

1000pFC3441

57R01L3431

0.1uFC3440

NU20pFC3429

180pFC3431

1000pFC3406C3405

1000pF

L341168nH

2200

pFC

3414

30nHL3441

R343251

Q3471

R3409

NU

4.7K

100pFC3459

CLK_VHF_

CSX_VHF_

9V3_VHF_PA_1

PASUPVLTG_VHF_PA_1

NU2200pF

10K

C3477

L3402

R3475

57R01

C344656pF

C344756pF

MRF247Q3441

C34782200pF

R3512100K

C34072200pF

470

R3400

R3417

NU5.6K

LM50

GND3

1

POS

VOUT2

U3502

CLK1

PASUPVLTG

CSX

TP3406

51R3441

R343556

12.77nH

L3433

150KR3408

C3412

.01uFC3421

2200pFC3411.022uF

680

R3507

390pF

2200pF

C3442

C3409

43

R3402

DATA

C3430

120

33pF

R3437

50K NU

RT3471

NU

R3476220

R347743

Q3473

NU

NU

MOSBIAS_2_VHF_PA_1

10uFC3436

NU5.6K

R3418

C3444220pF

R3515

620

0.1uF

C3510

.022uFC3471

S3

S4

68KR3455

D

G

G1G2G3G4

S1

S2

Q3431MRF5015

57R01L3442

10pFC3433

R341068K

A+

9V3

A+

PCIC_MOSBIAS_19V3

VCONT

9V3

VCONT

9V3

R3453820K

C34612200pF

C34600.1uF

9V3

0 to 5dBm

5.45VDC (50W)5.20VDC (28W)

3.70 - 3.90VDC

2.75 - 2.90VDC

re 4-24. VHF (136-174MHz) Power Amplifier Schematic Diagram

4-39

T

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

pF6pFFnF0nF0nFnFnFnF0nFF

0pF8pFpFnFnFnFnFnFnFnF

5pFF

6pFpFpFF

2nF2nFnF

2nFFF

2nFpF

2nFnFnF

2nFnF

2nFnF

2nF2nFpFpFnFFpFF

2nF

Description

C3428 2113741F33 2.2nFC3430 2113740A41 33pFC3431 2113740A61 82pFC3432 2113740A53 220pFC3433 2113740A29 10pFC3434 2113741A45 10nFC3435 2113741F33 2.2nFC3436 2113741A45 10uFC3437 2113741M69 0.1uFC3439 2113741W01 .01uFC3440 2113741M69 1uFC3441 2113740A79 1nFC3442 2111078B57 390FC3443 2111078B51C3444 2111078B51C3445 2113740A79 1nFC3446 2180464E50 56pFC3447 2180464E50 56pFC3448 2111078B36 56pFC3449 2111078B36 56pFC3450 2111078B38 68pFC3451 2111078B31 36pFC3452 2111078B38 68pFC3455 2111078B36 56pFC3456 2113740A79 1nFC3457 2113740A79 1nFC3458 2113741A45 10nFC3459 2180464E20 82pFC3460 2113743E20 100nFC3461 2113741F33 2.2nFC3464 2113740F28 11pFC3465 2113740A79 1nFC3466 2113740A79 1nFC3467 2111078B37 62pFC3471 2113743E07 22nFC3472 2111078B47 150pFC3473 2111078B47 150pFC3474 2113740A79 1nFC3475 2113741F33 18pFC3478 2113741F33 18pFC3489 2111078B45 130pFC3490 2111078B31 36pFC3492 2111078B59 470pFC3494 2111078B34 47pFC3496 2111078B33 43pFC3497 2111078B21 20pFC3498 2111078B34 47pFC3501 2113741F33 2.2nFC3502 2113741F33 2.2nFC3503 2113741F33 2.2nFC3504 2113741F33 2.2nF

Circuit Ref


able 4-5. VHF (136-174MHz) Radio Parts List

Circuit Ref


3000 2113741F37 3.3nF3001 2113740F19 4.7pF3002 2113740F26 9.1pF3003 2113741F37 3.3nF3004 2113740F45 56pF3005 2113740F51 100pF3006 2113740F45 56pF3007 2113741F37 3.3nF3008 2313741F25 10pF3009 2313741F13 330pF3010 2313741F13 330pF3011 2113741F37 3.3nF3012 2313741F25 10pF3013 2313740F45 56pF3014 2313740F24 7.5pF3015 2313740F45 56pF3016 2313740F51 100pF3017 2313740F42 43pF3019 2313741F25 10pF3020 2313741F25 10pF3021 2313740F53 82pF3022 2313740F49 10nF3033 2313740F20 5.1pF3034 2113740F49 10nF3035 2113740F31 15pF3101 2113740F32 16pF3102 2113740F31 15pF3103 2113740F39 33pF3104 2113743E20 100nF3110 2113740F37 27pF3111 2113743E20 100nF3112 2113740F49 82pF3114 2113740F33 18pF3115 2113740F35 22pF3116 2113743E20 100nF3121 2113743E20 100nF3122 2113743E11 0.1uF3123 2113743E11 39nF3132 2113743E20 39nF3133 2311049A57 10uF3134 2113743E20 100nF3135 2113740L30 33pF3136 2113740L29 30pF3137 2113743E11 39nF3138 2311049A40 2.2uF3139 2113743E20 100nF3140 2113743E20 100nF3141 2113743E20 100nF3142 2113743E20 100nF

C3143 2113740F53 120pFC3144 2113743E20 100nFC3145 2113743E20 100nFC3146 2113741F41 4.7uFC3147 2113743E20 100nFC3151 2113741F49 10nFC3152 2113741F49 10nFC3155 2113741F49 10nFC3202 2113741F49 10nFC3203 2113741F49 10nFC3205 2113741F49 10nFC3206 2311049A57 10uFC3207 2113740F35 22pFC3208 2113743E20 100nFC3209 2113743E20 100nFC3210 2311049A40 2.2uFC3211 2113743E20 100nFC3212 2113743E05 18nFC3213 2311049A40 2.2uFC3214 2311049A09 2.2uFC3214 2311049A09 2.2uFC3221 2113743E07 22nFC3222 2113743E20 100nFC3224 0882422W33 1uFC3225 2113743E20 100nFC3226 2313740F25 8.2pFC3227 2313740F51 100pFC3228 2113743E20 100nFC3231 2113741F49 10nFC3232 2113741F49 10nFC3233 2311049A40 2.2uFC3234 2113741F49 10nFC3242 2113740F59 220pFC3243 2113740F59 220pFC3244 2113740F59 220pFC3245 2113740F59 220pFC3246 2113740F59 220pFC3252 2313741F25 1nFC3253 2311049A56 4.7uFC3254 2113743E20 100nFC3255 2311049A40 2.2uFC3261 2313740L38 68pFC3262 2313740F61 270pFC3263 2313740F07 1.5pFC3302 2113740F23 6.8pFC3303 2113741F49 10nFC3306 2113740F20 5.1pFC3311 2113743E07 22nFC3314 2113740F23 6.8pFC3315 2113740F31 15pFC3316 2113740F15 3.3pF

Circuit Ref


C3317 2113740F39 33C3318 2113740F21 5.C3319 2113741F25 1nC3324 2113741F49 10C3332 2113743E20 10C3333 2113743E20 10C3334 2113743E07 22C3335 2113741F49 10C3336 2311041F49 10C3337 2113743E20 10C3341 2113741F25 1nC3342 2113740L05 3.C3344 2113740F09 1.C3345 2113740L25 20C3346 2311041F49 10C3347 2311041F49 10C3348 2311041F49 10C3351 2311041F49 10C3352 2113743E07 22C3355 2311041F49 10C3356 2113743E07 22C3357 2113740F24 7.C3361 2113741F25 1nC3362 2113740F21 5.C3363 2113740F47 68C3364 2113740F33 18C3365 2113741F25 1nC3400 2113741F33 2.C3401 2113741F33 2.C3402 2113743E07 22C3404 2113741F33 2.C3405 2113740A79 1nC3406 2113740A79 1nC3407 2113741F33 2.C3408 2113740F33 18C3409 2113741F33 2.C3410 2113743E07 22C3411 2113743E07 22C3412 2113741F33 2.C3413 2113743E07 22C3414 2113741F33 2.C3415 2113743E07 22C3416 2113741F33 2.C3417 2113741F33 2.C3418 2113740F36 24C3420 2113740F49 82C3421 2113741A45 10C3422 2113740A79 1nC3424 2113741A45 68C3425 2113928E01 1uC3426 2113741F33 2.

Circuit Ref

Motorola Part No.

4-40

C3C3C3C3C3C3CRCRCR

CRCRCRCRCRCRD3D3D3D3D3D3D3D3D3D3D3D3D3D3D3FL3FL3FL3FL3FL3FL3L30L30L30L31L31L31L31L32L32L33L33L33L33L33

CiR

ower

Description

R3154 0662057A73 10KR3201 0662057A17 47R3203 0662057A17 47R3204 0662057A17 47R3211 0662057B47 0R3221 0662057A55 1KR3222 0662057A49 1KR3223 0662057A25 100R3227 0662057A97 100KR3241 0680539A25 100R3242 0662057B47 0R3251 0662057B05 200KR3252 0662057B10 330KR3261 0662057B02 150KR3301 0662057A22 75R3302 0662057A25 100R3303 0662057A57 2KR3304 0662057A49 1KR3308 0662057B47 0R3311 0662057A25 100R3316 0662057B47 0R3318 0662057A09 22R3321 0662057A73 10KR3323 0662057A49 1KR3331 0662057A17 47R3335 0662057A13 33R3336 0662057A77 15KR3341 0662057A33 220R3342 0662057A15 39R3343 0662057A25 100R3351 0662057A80 20KR3352 0662057A75 12KR3353 0662057A97 100KR3354 0662057B02 150R3355 0662057A80 20KR3356 0662057A75 12KR3361 0662057A33 220R3362 0662057A17 47R3363 0662057A87 39KR3364 0662057A57 2KR3400 0662057A41 470R3401 0662057A28 130R3402 0662057A16 43R3403 0662057A28 130R3404 0662057A73 10KR3405 0662057A25 100R3406 0662057B02 150KR3408 0662057B02 150KR3410 0662057A73 10KR3412 0662057A67 5KR3413 0662057A61 3K

Circuit Ref


505 2311049A07 1uF506 2113741F33 2.2nF507 2113740F51 100pF508 2113741F33 2.2nF509 2113741F33 2.2nF510 2113743E20 100nF3301 4802245J42 Ring Quad Diode3302 4805129M96 SMBV10323303 4880154K03 Dual Common Anode Cath-

ode411 4802245J47 Schottky Diode412 4802245J47 Schottky Diode413 4802245J47 Schottky Diode440 4813833C02 Dual Diode Common Cathode501 4880107R01 Rectifier503 4805729G49 LED Red/Yel000 4813833C02 Diode Dual001 4805649Q13 Varactor003 4880154K03 Diode Dual004 4805649Q13 Varactor031 4886143B01 Diode Mixer101 4880154K03 Triple Diode201 4802233J09 Triple Diode261 4802245J22 Varactor341 4805649Q13 Dual Varactor361 4805649Q13 Dual Varactor362 4862824C01 Varactor451 4882290T02 Diode, Hot Carrier452 4882290T02 Diode, Hot Carrier471 4802482J02 Diode, Pin472 4802482J02 Diode, Pin101 9180112R16 Crystal Filter, 44.85MHz102 9180112R16 Crystal Filter, 44.85MHz111 9180469V04 Filter, 455kHz112 9180469V06 Filter, 455kHz114 9180469V06 Filter, 455kHz115 9180469V03 Filter, 455kHz02 2462587T23 470nH25 2462587T17 150uH32 2462587T17 150uH00 2462587T22 390nH01 2462587T25 620uH11 2462587T25 620nH12 2462587T25 620nH01 2462587T23 390nH31 2462587Q42 2.2uH01 2462587N44 18nH02 2462587N53 100nH17 2462587V28 33nH18 2462587V34 100nH31 2462587H32 68nH

rcuit ef


L3332 2462587V15 100nHL3333 2462587Q47 1uHL3341 2484562T13 8nHL3343 2462587N56 180nHL3344 2462587N68 1uHL3345 2460591N68 1uHL3346 2484562T18 35.5nHL3351 2462587N68 1uHL3361 2462587N50 56nHL3362 2462587N51 68nHL3363 2462587N50 56nHL3364 2462587N68 1uHL3401 2462587X48 39nHL3402 2484657R01 Ferrite BeadL3403 2462587T13 68nHL3411 2462587T13 68nHL3412 2462587X47 33nHL3413 2462587X46 27nHL3414 2460591A01 4.22nHL3421 2462587R01 Ferrite BeadL3422 2460591C73 100nHL3423 2460591B73 100nHL3431 2462587R01 Ferrite BeadL3432 2460591F77 35.5nHL3433 2460591B73 12.77nHL3441 2460591E77 30nHL3442 2462587R01 Ferrite BeadL3443 2462587R01 Ferrite BeadL3444 2460591X03 nHL3445 2460591X01 nHL3471 2462587X69 1.2uHL3472 2460591X05 48nHL3473 2462587X69 1.2uHL3474 2462587N42 12nHL3475 2462587N55 150nHL3477 2462587X69 1.2uHL3491 2460591B01 51nHL3492 2460591B01 51nHL3493 2460591B01 51nHL3494 2460591B01 51nHQ3001 4813827A07 NPNQ3002 4813824A17 PNPQ3101 4813827A07 NPNQ3102 4813827A07 NPNQ3151 4880048M01 NPNQ3152 4880048M01 NPNQ3301 4813827A07 NPNQ3303 4802245J50 Dual NPN/PNPQ3304 4805218N63 RFQ3421 5105385Y70 LDMOSQ3431 4805537W01 MOS

Circuit Ref


Q3441 4884411L04 RF PQ3471 480048M01 NPNQ3472 4805128M27 PNPQ3501 4813824A17 PNPQ3502 4813824A10 NPNR3000 0662057A53 1KR3001 0662057A97 100KR3002 0662057A43 560R3003 0662057A49 1KR3004 0662057A53 1KR3006 0662057A39 390KR3007 0662057A12 30R3008 0662057A37 390R3009 0662057A97 100KR3010 0662057A45 680R3011 0662057A65 4KR3012 0662057A49 1KR3013 0662057A61 3KR3014 0662057A18 51R3015 0662057A01 10R3016 0662057A29 150R3017 0662057A29 150R3018 0662057A09 22R3019 0662057A89 47KR3021 0662057A43 560R3031 0662057A18 51R3033 0662057B47 0R3101 0662057A75 12KR3102 0662057A01 10R3105 0662057A25 100R3106 0662057A83 27KR3107 0662057A69 6KR3108 0662057A44 620R3111 0662057A75 12KR3112 0662057A01 10R3115 0662057A39 390R3116 0662057A37 330R3117 0662057A83 27KR3118 0662057A69 6KR3130 0662057A18 51R3132 0662057A77 15KR3133 0662057A71 8KR3134 0662057A73 10KR3135 0662057A51 1KR3144 0662057A58 2KR3145 0662057A61 3KR3146 0662057A45 680R3147 0662057A75 12KR3151 0662057A73 10KR3152 0662057A73 10KR3153 0662057A73 10K

Circuit Ref

Motorola Part No.

4-41

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRTTUU

* Motorola Depot Servicing only

3414 0662057T71 8203415 0662057A25 1003416 0662057A25 1003419 0662057C34 203424 0662057K21 683425 0662057K21 683431 0662057M18 513432 0662057M18 513433 0662057C45 563434 0662057C45 563435 0662057C45 563436 0662057T51 1203437 0662057T51 1203441 0662057M18 513442 0662057C27 103443 0662057D48 1M3444 0662057D48 1M3453 0662057B20 820K3455 0662057A93 68K3457 0662057M163460 0662057C01 03461 0662057M20 623462 0662057A87 39K3463 0662057D04 15K3464 0662057C01 03471 0662057A41 4703473 0662057M18 513474 0662057M18 513475 0662057A73 10K3490 0662057A89 47K3501 0662057A69 6K3502 0662057A87 39K3503 0662057A49 1K3504 0662057A49 1K3505 0662057C71 6803506 0662057C71 6803507 0662057C71 6803508 0662057C71 6803509 0662057A73 10K3510 0662057A80 20K3511 0662057A97 100K3512 0662057A97 100K3513 0662057A69 6K3514 0662057A69 6K3515 0662057A69 6K3516 0662057A69 6K3517 0662057A97 100K3001 2508396X02 Transformer3002 2508397X02 Transformer3101 5186144B01 SA6163111 5113805A86 Quad Analog Mux/Demux

Circuit Ref


U3115 5113805A86 Quad Analog Mux/DemuxU3201 5185963A27 Ground Fault ProtectionU3211 5185963A33 Voltage RegulatorU3301 5105750U54 VCO BufferU3401 5105109Z67 LDMOS UHF/VHF DriverU3501 5105750U54 Power ControlU3502 5185963A15 Temperature SensorVR3471 4813830A15 Diode, 5.6VT3001 2508396X02 TransformerT3002 2508396X02 TransformerY3101 4880606B09 Crystal Oscillator, 44.395MHzY3102 9186145B02 Crystal Filter, 45.85MHzY3261 4880114R04 Crystal Oscillator, 16.8MHz

Circuit Ref


4-42



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