780-1 Service Manual · 780-1 Service Manual 3 Chapter 1 General 1.1 Introducton i This manual...

780-1 Service Manual

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Contents Chapter 1 General Chapter 2 Radio Overview Chapter 3 Mode Introduction Chapter 4 Disassembly For Repair Chapter 5 Circuit Description Chapter 6 PCB Layout Chapter 7 Adjustment Chapter 8 Bill Of Materials Chapter 9 Charger Chapter 10 Block and Schematic Appendix 1 Abbreviations Appendix 2 Main Technical Indexes Appendix 3 Trouble Shooting


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Chapter 1 General

1.1 Introduction This manual applies to the service and maintenance of 780-1 radios, and is for the engineers and professional technicians that have been trained by our company. In this manual you can find all the information of product service. Our company reserve the rights to modify the product construction and specification without notice in order to enhance product performance and quality. Read this manual before repairing the product.

1.2 Attention Safety Do not touch the antenna connector with your skin directly. . Do not reverse the power polarities. Do not turn on the radio before the antenna and load connection is completed. Do not contact the damaged antenna when transmitting, or may make lightly burning on the skin. Electromagnetism Interference It’s prohibited to use or repair the radio in the following places: Hospital, health center, air port Any area with a potentially explosive atmosphere (e.g. fuel and chemical storage and transport devices etc.) Any area of dynamite or exploder.

Change Components All the components used in repair service should be supplied by Our company. Other components of the same models available on the market are not surely able to use in this product and we do not guarantee the quality of the product using such components.

1.3 Service All the Our company products are subject to the service warranty. After-sales service will be provided, and the length of warranty is stated by Our company. The radio and its accessories are all in the warranty. However, in one of the following cases, charge free service will be not available. No valid service warranty or original invoice.


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Malfunction caused by disassemble, repair or reconstruct the radio by the users without permission. Wear and tear or any man-made sabotage such as mechanical damage, burning or water leaking. Product serial number has been damage or the product trademark is difficult to identify. Beyond the warranty time, lifetime service is still available with paid. And we also provide service components to service stations and staff.


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Chapter 2 Radio Overview

1. PTT ( PUSH-TO-TALK) Button To make a call, press and hold the PTT button, then speak into the microphone

in normal voice. Release the PTT button to receive signals. 2. Side Button 1 (Programmable Button) 3. Side Button 2(Programmable Button) 4. MIC Input

Please keep your mouth about 10 cm (3-4 inches) away from the microphone input to achieve the best voice quality. If the distance is too far or too close to the radio, it will affect the voice quality.

5. LCD


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ICON Description Received Signal Strength

Indicator Scan

Talk Around

Monitor

Squelch Open TX Middle Power\ TX Low

Power New Message

Key Locked Select Status Programmable Icon

Scrambler Battery Meter

6. Key Pad 7. Top Button (Programmable Button) 8. Channel Selector

Rotate to select channel 1~512. 9. Power/Volume Knob Turn clockwise to switch on the radio.

Turn counterclockwise till a click is heard to switch off the radio. Rotate to adjust the volume after turning on the radio.

10. LED Indicator LED Indicator Status/Alert. Green LED lights when a carrier is detected in the current channel. Red LED lights during transmission. Flashes orange when receiving 5-Tone signaling or 2-Tone signaling . Green LED flashes when scanning or Red LED flashes when low battery.

11. Speaker/Microphone Jacks Used to connect the optional speaker/microphone.

Programmable Button Function The dealer can program the Side Button 1, Side Button 2, Top Button and ‘C’, ‘<’, ’>’ ,’O’ Keys with the following Optional functions: None (No Function) Channel Up Channel Down Zone Up Zone Down Display CH Frequency


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Display CH Alias Display Mode Switch OST H/M/L Power Switch Squelch Adjust Lock Keyboard Scan Noise Channel Delete Voice Expander Scrambler Home Channel Talk Around VOX Monitor Momentary/Call Cancel Monitor/Call Cancel Squelch Off Momentary/Call Cancel Squelch Off/Call Cancel Emergency Call (Only for TOP key) Cancel Emergency Call (Only for TOP key) Radio Call Call1/Call2/Call3/Call4 Menu Select/Enter (Only for ‘O’ key) Lone Work Scan List Edit GPS Information Display VOX Level Back Light GPS Auto TX Zone0 Scan ADD/DEL Man-Down Normal Record/Record Stop Protected Record/Record Stop Record play/Play Next/Play Stop Record Delete Surveillance


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Buttons Function Description

None No function

Channel Up Select the next channel

Channel Down Select the previous channel

Zone Up Select the next zone

Zone Down Select the previous zone

Display Channel Frequency Press this button and the LCD will show the frequency of the current channel.

Display Channel Name Press this button and the LCD will show the name of the current channel.

Display Mode Switch Press this button and the LCD will show “Channel Number”, “Channel Name”, “Zone Number, Zone Name” and “Channel Frequency” alternately.

OST Change the setup of preset CTCSS/DCS for the current channel.

Power level Selection Press this button to make selection among the high, medium and low transmission power, and “ ”, “M” and “L” will be shown on the LCD to represent the current transmission power.

Squelch Level Selection

Press this button to enter the “Squelch Level Adjustment Mode” first, and then press the / button to adjust the level. Press the O button to save the selected squelch level and quit this mode.

Key lock To toggle between locking/unlocking your radio’ keypad.

Scan

Scan a) Press the button set as “Scan” to start or stop scanning. If

scan beep tone enabled, 4 high beeps will indicate entering scanning state, or 4 low beeps indicate exiting scanning state. If scan LED enabled, (the GREEN LED will blink while scanning).

b) The working channel of the radio will revert to the defined channels automatically when you press PTT button during scanning.

Nuisance Delete When one channel continually generated unwanted noise, this key allows you temporarily remove the channel from the current active scan.

Voice Expander Enable or Disable the voice compression/expansion function.

Scrambler Enable or Disable voice scrambler function.

Home Channel Changes to the home channels.

Talk around Switch the radio between talk around and repeater mode.

VOX Selection Enable or disable the VOX function.

Monitor momentary/ Call Cancel

Hold this button to close CTCSS, DCS, 2Tone/DTMF signaling according to the set data. Loosen this button to return to the normal operation. Press this button in the selective call state to quit such a state.

Monitor/Call Cancel

Press this button to trigger this function and the CTCSS, DCS, 2Tone/DTMF signaling will be closed, so you can receive the signal that can't be heard in the normal operation. Press this button again to return to the normal operation. Press this button in the selective call state to quit such a state.


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Squelch off momentary/ Call Cancel

Hold this button to open the squelch. loosen this button to return to the normal operation. Press this button in the selective call state to quit such a state.

Squelch off/Call Cancel Press this button to open squelch, press it again to return to normal operation. Press the button in the selective call state to quit such a state

Emergency Alarm

When you press the top button set as “Emergency Call”, the radio will enter emergency state, the radio can sound alarm tone or transmit ID code or background tone to your partners or the system, the detail setting is programmed by your dealer.

Cancel Emergency Call Press the top button set as “Cancel Emergency Call” to cancel Emergency function.

Radio Call Press this button and to enter the fast menu mode of “Radio Call”. For detailed operation, see “Menu Operation”.

Call Button 1 Sends the DTMF/2Tone/5Tone code assigned to call 1 key.




Menu Select /Enter To enter the menu mode or make menu selections.

Lone worker

When the radio is set in lone work, it will sounds pre-alert tones before the Lone Work time expires, and the user should press any key on the radio within the Reset Time, indicating the user is safe, otherwise, the radio will enter emergency state automatically.

Scan List Edit Press this button and the radio will enter the fast menu mode for scan list edit. For details, see “Menu Operation”.

GPS Information View Press this button and the radio will enter the menu mode of GPS Information Menu.

VOX Level Selection Press this button to enter the VOX Level Adjustment Mode”. Press

/ button to adjust VOX level. Press O button to save the selected VOX level and quit this mode.

Backlight

Man-down

Press this key to enable or disable man-down function, which is an optional function. If being in “man-down status” for a setting time, the radio will sound pre-alert tones. If not being set straight in another setting time, the radio will enter “Emergency state.”

Normal Record/Record Stop


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Chapter 3 Mode Introduction

Mode combinations

Mode Function How to access Normal User

Mode For normal use Power on User Mode Field

Programming Mode

Programming the basic information of the radio

Menu or Programmable Key

Data Programming Mode

Reading and writing frequency data and other functions

Receive instructions from the PC

Test Mode Used to tune the radio using the PC.


PC Mode

Firmware Upgrading Mode

Upgrades the software when new features are added


Normal User Mode：

You can enter Normal User Mode (conventional communication mode) by turning on the power switch. Users in the mode can use the defined function of the radio.

Field Programming Mode：

You can enter the Field Programming Mode by pressing the “Menu” Key or a programmable key to enter this mode.

Data programming mode:

Before leaving the factory, the radio has been set in factory. However, due to different requirements of users, functional parameters of the radio such as working frequency, channels, CTCSS/DCS and auto scanning, etc. should be set again. Therefore, the company has specially designed a set of 780 programming software with friendly interface, convenient operation and visualized display for setting functional parameters of the radio. Steps for setting the functional parameters of the Radio by computer are as follows: 1. Install 780 programming software on the computer.


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2. As shown in the figure below, connect the radio to the computer through a special serial or USB programming cable.

Figure 3-1 3. Turn on the power of the computer. 4. Turn on the power of the Radio. 5. Click on 780 icon to perform the program. 6. In the main menu of the programming software, click on [Read] to read the parameters

of the radio into the computer; click on [Write] to write the parameters set in the computer into the radio.

Caution: 1. Before editing for the first time, the data should be read from the Radio and properly

backed up. 2. If the edited data cannot work normally after being written into the Radio, please open

the backup data and rewrite them. 3. “Model Information” is the important information of the Radio and should not be altered. Test Mode According to Figure 3-1, connect the radio to the computer with the special programming cable. Warning: Before entering the Test Mode, please first connect a high-frequency load of 50

ohm to the antenna port of the radio or connect the radio a certain test instrument. With the 780 Programming Software, you can enter the adjustment status in Computer Test Mode to adjust the following parameters of the radio:

（1） Frequency stability （2） RF transmitting high power （3） RF transmitting Middle power （4） RF transmitting Low power （5） Maximum TX voice deviation （6） VOX1(Tight) （7） VOX10 （8） 2/5 tone deviation （9） DTMF deviation （10） MSK deviation （11） DCS/LTR balance （12） DCS deviation （13） CTCSS(67.0Hz) deviation

Computer (RS232 serial port

/USB port)

Radio (Earphone /Program port)

Programming cable


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（14） CTCSS(254.1Hz) deviation （15） Battery warning level （16） RX Sensitivity （17） RX squelch 9 open level （18） RX squelch 9 close level （19） RX squelch 1 open level （20） RX squelch 1 close level （21） RSSI(-120dBm) （22） RSSI(-70dBm) （23） TX Low Voltage

Firmware Upgrading Mode The radio is equipped with an internal FLASH ROM, it can be upgraded if required. 1. Connect the radio to the PC with a proper programming cable, then power on the radio. 2. Run computer programming software. 3. Select the right “com port” and suitable Baud Rate you connected and the upgrading

firmware and then click on “E.P” to start downloading. 4. Turn off the radio and exit the programming software.


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Chapter 4 Disassembly For Repair

The radio is a kind of sophisticated communication equipment with small and fine mechanical structure. You should assemble and disassemble it carefully during the maintenance process. The Instruction for assembly and disassembly are as follows: Installing/Removing the Battery Pack To install the battery, please place it into the groove on the top of the radio chassis about 5mm away from latch. If the radio has the belt clip installed, you will have to press one side of the clip, to raise it and slide the battery in proper position. Press the battery with your fingers and push the battery until you hear a latch click, the battery is now installed.

Removing the battery pack： If you want to remove the battery from the radio, first press the battery latch located on the bottom of the radio, and then press down to slide the battery about 5mm to release the latch.

Notice: * Do not short-circuit the battery terminals or dispose the battery in fire.


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* Do not disassemble the battery case. Installing/Removing Antenna, Channel Selector, Power/Volume Knob Screw the antenna out of the connector at the top of the radio by holding the bottom of the antenna and turn it counter clockwise until apart. Using a smooth tool or a tool protected with cloth to hold or prize up form the bottom of channel selector or volume knob until apart.

Install external speaker/MIC Open the cover of the jack for external speaker/MIC, and then insert the plug of the external speaker or microphone into the jack on the radio. When inserting the accessory plug, make sure it is properly aligned ( straight) to avoid internal damage to the connector in the radio.

Installing/Removing the Belt Clip


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Use the 2 screws (M2.5x8.0) supplied with the radio and fix these screws on the holes in the radio clip and into the holes in the aluminum case. If you want to remove the clip from the radio, just unscrew them, and remove the clip, you can put the screws back to make sure you do not loose them.

Installing/Removing the Chassis, PCB

1． Remove the antenna, channel selector and power/volume knob. 2． Screw off the two screws at the bottom of the radio by a hexagon screwdriver. 3． Pry up the aluminum shell by peaking a straight screwdriver in the cross-slot at the


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bottom of the aluminum shell, and then pull out the surface shell after placing the aluminum shell inclined to the back；but please be careful not to snap off the cable of the speaker.

4． Screw off the 4 screws M2X3 on the keyboard PCB by a cross screwdriver and take out the FPC from the socket ,then screw the 5 especially screws M2X3 from main PCB.

5． Screw off the 6 screws on the PCB by a cross screwdriver. 6． Unsolder the endpoints of the antenna , PTT key board and speaker by an electric iron,

then remove the main board. After the disassembly above, you can carry out corresponding reparation and debugging according to the actual malfunction.


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Exploded View of the Parts


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No. Parts No. Description Qty.

1 2010CU780002x CU780 LCD lens 12 2 2010CU600008X Ear phone cover 3 2010CU780001x CU780 cabinet 4 2020CU780002x Mic waterproof 5 LCD 6 1211401601001 speaker 7 2020CU600001X PTT silicon key 8 2010CU600002X PTT plastic key black 9 301200407001X Machine screw M2.0X4.0 10 2010CU600003X CU600 ear phone plastic plug 11 301060400001X Volume screw M6X0.75 special shape brass 12 2010CU600006X Volume knob black ABS 700 13 2010CU600007X Encoder knob black ABS 700 14 7100600113171 Antenna 15 2020CU600007X Knob washer silicon 16 301070500001X Encoder screw M7X0.75 17 2010CU600005X Radio top cover black 18 301250607001X Machine screw M2.5X6.0 19 2020CU600005X Power socket washer 20 7110CLP01001 CLP-01 clip 21 70600CB01001 Battery CB-01 (OR CB-02 70600CB02001) 22 2020CU600002X Cabinet waterproof ring 23 301200807001X Machine screw M2.0X8.0 six lobe pan 24 Main PCB 25 Key broad PCB 26 304200400001x Key screw 2X4 27 2040CU780001x Key broad dome 28 304200307001x Key broad screw 2X3 29 2010CU600009X Battery locker black PC+ABS 2950 30 2020CU780001x Key broad


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Chapter 5 Circuit Description 5.1 Frequency configuration

The reference frequency of frequency synthesizer is provided by 12.8MHz crystal oscillator X4 TCXO. The receiver adopts quadric mixing mode. The first IF is 51.65MHz, and the second IF is 450kHz. The first local oscillation signal of the receiver is produced by frequency synthesizer and the second local oscillation signal selects the 4rd harmonics of 12.8MHz of crystal oscillator X4 TCXO. The signal of transmitter is produced by frequency synthesizer directly.

Figure 5.1 Frequency configuration 5.2 Receiver（Rx） The receiver is double conversion superheterodyne,designed to operate in the frequency range of 136 to 174MHz,The frequency configuration in Fig 5.1

Figure 5.2 Receiver section configuration


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Front End of Receiver Signals from the antenna are filtered by BPF which consists of C235 C255 C233 C951 C254 C345 C234 L211 L219 L234 D202 and D204 via RX/TX switch (D101 D106 D102 and D103). After being filtered out the useless out-of-band signals, the signals are amplified by LNA consisting of Q203 and external components. Signals from LNA are filtered again by BPF which consists of C226 C238 C239 C229 C947 C259 L214 L254 D905 and D203 before entering the 1st mixer (Q202). The PWM wave is output by MCU composed of 58 foot and then commutated to adjustable voltage after filtering to change the capacity of varactor diode D905 D203 D206 D201 D202 and D204 to control the center frequency of BPF. 1st mixer The first IF (51.65MHz) signal is produced after mixing of the receiving signal from LNA and the 1st local oscillation signal from frequency synthesizer. The first IF signal is filtered out adjacent channel and other useless signals by crystal filter (XF203). IF Circuit The 1st IF signal from crystal filter is amplified by the first IF amplifier (Q201) before processing of IC in IF( IC200，NJM2591V). IF IC consists of the 2nd mixer, 2nd local oscillation, IF amplifier, limiter, frequency discriminator and noise amplifier. Frequency (12.8MHz) produced by TCXO(X1) is amplified and then selects 4rd harmonics (51.2MHZ) as the second local oscillator signal source. The second IF signals (450kHz) are generated after signals mixing of the second local oscillation (51.2MHz) and the first IF (51.65MHz) in IC200. Audio signals are demodulated and outputted by IC200 after the second IF signals are amplified and limited in IC200 and then filtered by ceramic filter(450kHz).


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Figure 5.3 Schematic Diagram for IF System

Receiving Audio Signal Processing: The audio processing circuit of receiver consists of IC300 and IC806. Voice signals from IC300 are sent to IC301（CTCSS signaling filter circuit）and IC806.IC806 includes audio filter and de-emphasis.

Figure 5.4 Schematic Diagram for Audio Processing of Receiver

Squelch Circuit

Part of the AF signal from the IC200 enters the FM IC again,and the noise component is amplified and rectified by a filter and an amplifier to produce a DC voltage corresponding to the noise level.


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The DC signal from the FM IC goes to the analog port of the microprocessor(IC403).IC403 determines whether to output sounds from the speaker by checking whether the input voltage is higher or lower than the preset value.

To output sounds from the speaker,IC403 sends a high signal to the MUTE and AFCO lines and turns IC302 on through Q302 Q304 and Q305. Audio Power Amplification

The audio power amplifying circuit consists of IC302 and the peripheral components. The signals are amplified by audio power amplifier to drive the speaker after collecting the receiving audio signals, voice signals and warning tone signals. The warning tone has no volume limitation.

When AFCO is high level, Q304 is on, IC302 begins to work and the speaker sounds. Speaker Impedance: 16ohm

CTCSS Signal filtering

The audio signals after demodulation in IC200 may contain CTCSS (continuous tone control squelch system) or DCS（digital squelch）signals. The spectrum component of CTCSS/DCS is 67 to 250Hz. The filtering circuit composed of IC301 can filter out signals except CTCSS/DCS spectrum, which makes MCU decode the CTCSS/DCS more accurately. 5.3 Transmitter (Tx) Transmitter Power Amplifier

Figure 5.5 Schematic Diagram for Power Amplifier and Antenna Switch

The modulated RF signals from VCO are amplified by Q101 and Q105 before the power amplification in Q107.

Gate bias of Q105 and Q107 is controlled by APC circuit, so the output power of transmitter can be controlled conveniently by changing the gate bias voltage. APC（Automatic Power Control）


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Figure 5.6 Schematic Diagram for APC Circuit

R130 R131 and R132 are power amplification current detector, IC100A is power amplification current sampling amplifier and IC00B is power comparison amplifier.

The power amplification current and IC100A output will increase with oversized output power of transmitter. When the output voltage of IC100B decreases, the bias voltage of Q105 and Q107 will decrease, finally the output power of transmitter will decrease or vice versa. Thus, the output power of transmitter will keep stable under any different working condition.

MCU can set the power by changing the voltage input to IC100B.

Audio Signal Processing of Transmitter

Figure 5.7 Schematic Diagram for Audit Circuit of Receiver


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The audio signal processing circuit of Transmitter consists of IC500 and IC806. Voice signals from MIC are sent to VCO for modulation together with CTCSS/DCS after amplification, limitation and filtering.

IC806 includes amplifier,filter,limiter and pre-emphasis. AGC circuit consists of D800, D801 and Q801,Q802. The signal amplitude is reduced to

ensure no distortion in case of oversized MIC signal. Q504, the power switch of voice processing circuit, controlled by MCU, will give power

supply to IC500 only during transmission. J501 is the socket for external MIC, and the internal MIC will disconnect automatically

when using external MIC, but the internal PTT is still effective. 5.4 PLL Frequency Synthesizer

Figure 5.8 Schematic Diagram for Frequency Synthesizer

The 780-1 adopts PLL frequency synthesizer. Frequency synthesizer consists of reference oscillator, voltage controlled oscillator

(VCO), programmable frequency divider (PFD), phase comparator and low pass filter (LPF).

RX VCO Unit consists of Q14 D2 D4 D8 D9 L14 C44 C45 and C35.

TX VCO Unit consists of Q3 D1 D3 D10 D11 L13 C38 C39 and C34, D12 is the modulation circuit of VCO.

IC1 (MB15E03) is PLL integrated circuit and contains programmable parametric frequency divider (PPFD), programmable frequency divider (PFD), phase comparator and charge pump, etc.

Low pass filter consists of R7 R9 R10 R173 R188 C177 C456 C15 and C18. Reference frequency is provided by X4 (TCXO, 12.8MHz). Reference frequency of TCXO (Temperature-controlled Crystal Oscillator) is divided by

PPFD in IC1 to produce reference frequency of 5kHz or 6.25kHz (controlled by MCU based on the set channel frequency).


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The oscillation frequency of VCO is compared with reference frequency to produce error

signal after divided by PFD in IC1. The error signal is filtered by low pass filter before changing the VCO frequency to the set value in VCO (it is locking).

N=FVCO/FR

N：Division Frequency FVCO：VCO Oscillation Frequency

FR：Reference Frequency

Lock lost detection: When PLL is out of lock, IC pin14 will output low level signal to MCU，

and then MCU prohibit transmitter from transmitting with a warning tone.

Q8, the power filter, can provide PLL with more purified power to reduce the noise of frequency synthesizer. 5.5 Voice Circuit：

The station is equipped with Voice Prompt Function, which is very useful during night or under dark condition.

The speaker will voice the current channel number when changing the channel every time because of the voice memory chip (IC401), which stores channel voice prompts. It will repeat the current channel number once pressing “Voice Prompts”.

The speaker will voice the current channel number under standby state if the Voice Prompt Function is set. Press “Voice Prompts” for reset to switch voice types. Press “Voice Prompts” repeatedly for power connection, then the voice types will be switched in circle in the order of “Chinese male voice—English male voice—Chinese female voice—English female voice—no prompts”.

5.6 Power Supply:

The station use lithium battery (7.4V, 1700mAh), while transmitter amplifier circuit (Q105 Q107) and receiver audio amplifier (IC302) use battery directly for power supply, and other circuits use regulated voltage (5V and 3V).

IC404:micro-power voltage stabilizer of 3V LDO, provides power (3V) of heavy current for

the station together with Q10 and Q30. IC902:5V LDO Q405: 5T switch (controlled by MCU)

5T: supply power for the front end of transmitter Q408: 5R switch (controlled by MCU)

5R: supply power for the units such as RF amplification, mixing, IF processing and audio signal processing.

Q910: 5C switch (controlled by MCU) 5C: the power (5V), controlled by power-down mode, is the supply power of

frequency synthesizer.

5.7 MCU Unit:


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Figure 5.9 Schematic Diagram for MCU Unit MCU Unit controls the operation of every unit to realize all functions of the 780-1. Communication with external PC State data access Control PLL for the generation, receiving and transmitting of local oscillation frequency Access to the current channel state Control LED status indicator Control power supplied condition of every unit Detect action of every function key Produce CTCSS signal Produce DCS signal Produce power controlled signal Finish CTCSS decoding Finish DCS decoding Squelch detection and control Control voice prompt content

Memory (FLASH) Channel data, CTCSS/DCS data and other function setting data and parameter

adjustment data.

CTCSS/DCS signal coding and decoding:

CTCSS/DCS signals from MCU (pin24 and pin26 output) are sent to VCO and TCXO for


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modulation respectively after filtering by R500 R501 C500 C501 and R504 R503 C920 C921.

CTCSS/DCS signals from receiver are sent to MCU(pin52) for decoding, and then MCU test if there are CTCSS/DCS signals with the same setting of the station to decide whether open the speaker or not.

CTCSS (continuous tone control squelch system, hereinafter referred to as CTCSS), is a kind of squelch control system with modulation on carrier and continuous sub-audio signals as pilot tone. If CTCSS function is set, the call is available only at the same CTCSS frequency of both receiving and transmitting parties to avoid the disturbance of other signals.

The station has 41 groups of standard CTCSS frequency for your selection, such as Table 5.1.

CTCSS signals produced by MCU are sent to VCO for modulation after filtered the HF components over 300Hz in low pass filter composed by RC.

Table 5.1 CTCSS Frequency Table

No. Frequency [Hz]

No. Frequency [Hz]

No. Frequency [Hz]

No. Frequency [Hz]

1 67.0 11 94.8 21 131.8 31 186.2 2 69.3 12 97.4 22 136.5 32 192.8 3 71.9 13 100.0 23 141.3 33 203.5 4 74.4 14 103.5 24 146.2 34 206.5 5 77.0 15 107.2 25 151.4 35 210.7 6 79.7 16 110.9 26 156.7 36 218.1 7 82.5 17 114.8 27 162.2 37 225.7 8 85.4 18 118.8 28 167.9 38 233.6 9 88.5 19 123.0 29 173.8 39 241.8

10 91.5 20 127.3 30 179.9 40 250.3 41 254.1

DCS signaling： DCS (Digital code squelch), is a kind of continuous digital code modulated on carrier

with voice signal and used for squelch control. If DCS function is set, the speaker is available only when receiving the same DCS code to avoid the disturbance of useless signals. The station has 83 kinds of standard codes including positive and inverse code for your selection, such as Table 5.2.


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DCS signals produced by MCU (PWM waveform) are sent to VCO and TCXO for modulation (the HF components of DCS signals are modulated by VCO, while the LF components by TCXO) after filtered the HF components over 300Hz in low pass filter composed by RC.

CTCSS/DCS signals from receiver are sent to MCU for decoding, and then MCU test if there are DCS codes with the same setting of the station to decide whether open the speaker or not.

Table 5.2 DCS Coding Schedule

023 114 174 315 445 631 025 115 205 331 464 632 026 116 223 343 465 654 031 125 226 346 466 662 032 131 243 351 503 664 043 132 244 364 506 703 047 134 245 365 516 712 051 143 251 371 532 723 054 152 261 411 546 731 065 155 263 412 565 732 071 156 265 413 606 734 072 162 271 423 612 743 073 165 306 431 624 754 074 172 311 432 627

5.8 Description of Semiconductor Devices The distribution of each pin goes as the table 5.3. Table 5.3---Definition of CPU Base Pin:

Pin No.

Port Name Pin Name

I/O Active Level

Function

1 PCTV DA1 O - APC/BPF control output 2 DTMF DA0 O - DTMF/Beep output 3 TONI P92 I - TONE data input 4 F_CS P91 O L FLASH chip select output 5 F_DI P90 O - FLASH data output 6 BYTE BYTE - - GND 7 CNVSS CNVSS - - GND 8 F_CLK P87 O - FLASH serial clock 9 F_DIO P86 I/O - FLASH data input/output 10 RESET RESET I - CUP RESET 11 XOUT XOUT O - CUP CLOCK 12 VSS VSS - - GND 13 XIN XIN I - CPU CLOCK


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14 VCC VCC - - +3V 15 NC P85 I - NC 16 NC P84 I - NC 17 RDT P83 I - Base Band IC data input 18 A-TCLK P82 I - Base Band IC clock input 19 A-DI/O P81 I/O - Base Band IC Data Input/Output 20 A-TDATA P80 O - Base Band IC data output 21 A-DIR P77 O - Base Band IC data output 22 VCCN P76 O - Frequency regulation output（PWM） 23 A-SCLK P75 O - Base Band IC clock output 24 DCSVCO P74 O - CTCSS/DCS output（VCO） 25 ST-Reset P73 O H SMARTRUNK Board Reset 26 DCSTCXO P72 O - CTCSS/DCS output（TCXO） 27 RXD2 P71 I - Serial data（PC） 28 TXD2 P70 O - Serial data（PC） 29 TXD1 P67 O - TXD1 30 RXD1 P66 I - RXD1 31 NC P65 - - NC 32 BSHIFT P64 O H Beat Shift Enable 33 TXD0 P63 O - TXD0 34 RXD0 P62 I - RXD0 35 RXVCO P61 O - T/R VCO switch 36 NC P60 - - NC 37 RXMUTE P57 O L RX audio mute 38 BEEP_AF P56 O L Local Beep Control Pin 39 NC P55 - - NC 40 PLL-CLK P54 O - PLL clock output 41 PLL-DATA P53 O - PLL data output 42 PLL-EN P52 O - PLL Enable output 43 PLL-UL P51 I H PLL locked input 44 NC P50 - - NC 45 NC P47 - - NC 46 5TC P46 O H Transmitting power control 47 NARROW P45 O H Narrow Band Control 48 MIDDLE P44 O H 20KHz Band Control 49 GPS-ON P43 O - GPS Control 50 SAVE P42 O H Power Save Control 51 SPKSW P41 O L Audio Amplification Switch 52 ALARMC P40 O L Alarm switch control（H：Controlled by

Volume Switch L：Emergency siren maximum volume)

53 AFCO P37 O L Audio Amplification Power 54 5RC P36 O H Receiving power control 55 RLED P35 O H Red LED control


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56 GLED P34 O H Green LED control 57 TOPKEY P33 I L TOPKEY Input 58 EXTPTT P32 I L External PTT input 59 MIC-MUTE P31 O L Internal MIC mute 60 VCC VCC - - 61 APCSW P30 O H APC switch 62 VSS VSS - - GND 63 PTT P27 I L PTT switch input 64 SK1 P26 I L SK1 Input 65 SK2 P25 I L SK2 Input 66 LAMP P24 O H LCD Backlight Control 67 LCD-5 P23 O - LCD data output 68 LCD-4 P22 O - LCD clock output 69 B_SD P21 I - Decoder data input 70 B_ACK P20 O - Decoder ACK control 71 B_EST P17 I - Decoder data input 72 NC P16 - - NC 73 EN0 P15 I - Channel knob input 74 EN1 P14 I - Channel knob input 75 NC P13 - - NC 76 LCD-3 P12 O - LCD A0 control 77 LCD-2 P11 O L LCD RS control 78 LCD-1 P10 O L LCD Chip Select 79 K8 P07 I/O - Matrix Key Input/Output 80 K7 P06 I/O - Matrix Key Input/Output 81 K6 P05 I/O - Matrix Key Input/Output 82 K5 P04 I/O - Matrix Key Input/Output 83 K4 P03 I/O - Matrix Key Input/Output 84 K3 P02 I/O - Matrix Key Input/Output 85 K2 P01 I/O - Matrix Key Input/Output 86 K1 P00 I/O - Matrix Key Input/Output 87 BATT P107 I - Battery Input 88 RSSI P106 I - RSSI Input 89 BUSY P105 I - Carrier Input 90 VOX P104 I - VOX Input 91 DCS-IN P103 I - Low Speed Data Input 92 DTMF-IN P102 I - DTMF Detect 93 R_AUDIO P101 I Remote Voice Input 94 AVSS AVSS - 95 L_AUDIO P100 I - Local Voice Input 96 VREF VREF - 97 AVCC AVCC - 98 RX_WN P97 O H/L Wide/Narrow Band Control (H:Wide) 99 MANDOW P96 I - Man Down Input


32

N 100 NC P95 - - NC

Table 5.4 Functional description of semiconductor device Item Model Function Description IC1 MB15E03 Frequency Synthesizer IC100 NJM2904 APC, Voltage Comparison, Driving IC200 NJM2591V Receiver 2nd Local Oscillation, 2nd IF Amplification, Limitation,

Demodulation, Noise Amplification IC300 NJM2902V Receiver demodulated signal Amplification, Filtering IC500 NJM2100V MIC Amplification, Limitation, Filtering IC302 TDA2822D Audio Frequency Power Amplification IC401 W25Q80 FLASH, Channel Frequency Data Storage, Function Setting

Parameter, Debug Mode Parameter IC403 M3062 MCU IC400 PST9124NR MCU Reset Circuit IC805 BU8872FS DTMF receiver IC805 AK2346 Audio Processor


33

Chapter 6 780-1 PCB Layout

MIC1

C5

D4

D5

D8

C4

C3 R1

D2

D3

D6

C7

C8

C9

J1

D1

D9

C2

D7

C6

C13C1

R6

R5

R9

R3

R4

R2

R14

R12

R13

R10

R11

C15

J2

R8

Q2

C16

C14

C12

R20

R18

R15

R17

C11

Q1

R19

R22C10

R7

R21

C17

R16

IC1

R23

K1

L803

C935

R34

1R

141

R13

8

C941

R14

4

C14

1

R14

2

IC401

C953

C83

2

Q106

C13

9

R93

3C

127

C502

C503

R502

R541

R548

R80

9D

903

C42

2

C809

C810

C811

R534

C969

R40

0C

420

R52

7

R53

3

Q902

R52

9C

524

C52

6

R81

3C

521

R83

1

R840

R928

C41

0

C930

C92

1R

501

R51

3R

924

R538

C82

2R

505

C91

7R

833

C333

C92

5

C968

IC404

C820

R823

R90

8R

521

R96

1

R986

C926

R917

R909

Q906

C41

6C

834

R52

2C

505

R52

3

C41

7R

985

R96

4C

330

C33

4

R52

5R

972

C91

9

C91

5

C911

SPD

400

C97

9

Q302

R91

1C

909

C97

2

L906

D40

1

C97

3

X802

R979

C983C

419

R40

1R

408

R41

1IC

903

R93

9C

851

L801

L903

C80

3

R80

2

IC10

0

C95

2R

901

IC400

R42

1C

924

R80

8R

415

C97

0

C40

9C

853

R81

4R

418

R96

6R

969

X400

C80

6R

812

C52

7

C84

8C

923

R52

8

R95

8

C52

5L5

00R

841

R81

6R

817

C83

9

R84

2

C92

9L4

04

C50

4

R50

0

C91

2

R53

9R

824

C91

3R

334

R95

9

C82

1

R82

5R

919

R955

R91

4

R91

3

R91

2

C91

0C

331

R33

2C

335

C81

6R

973

R98

3R

327

R81

9C

916

C98

5R

336

C96

3

IC902

C82

7C

824

R95

3

R916

R97

5C

981

L905

C82

9

Cx3

C80

5C

971

C93

6

R40

9 C71

0

C50

0

R82

6

R91

0

C90

7

C90

8

TH201

R940R941

Q109

R145

Cy1

R137

C802

C933

R413

R93

1

R810

C967D500

J801

C165

R152

Q110

R15

3

R146

Cy3

R136

R135

R134

R133

C400 C415Q403

C412

R81

1

IC805

Q504 Q912

R526 C519

Q503Q914R968

Q903

C408

C41

4C

501C849 C920 R503

L400

R504R807

R536

R542

R416

R967

R806

C90

6C

506

L802

C814

C835 C837 C838

D801 D802

C841 C844

R830 R832

C93

1C

962

Q905

C407

C817 R821

C818

C819

Q901 R827

Q500

R978 C984

C94

3

Q913

R918C914

IC901

C986

R980

R981

R982C84

0R

335

Q307

IC302

Q904

R417

C51

8

C828

C830

R984

C97

8

IC803

IC801

C987

C850

C804

C529

C337

D40

2

L403

R83

6

C944 R938

C94

6

R83

8

Q108

ANT

C80

7C

945

C41

1

X801

C134

R140

R84

3

IC403

C82

6

C81

5

R34

2

IC500

R532

R53

5

R92

7

R92

9

R540

R537

R804

R805

R328

C813

R91

5

C836

C842 C845

R839

C843 C846

Q801 Q802

C94

0R

818

R82

0

R82

2

C823

C833R506

R92

2

R92

1

R92

0

J503

C533

R33

3C

336

R923

C332

C97

6

R829

C322

R95

4

C531

C53

0R

926

C81

2

C82

5

C937

C403

C808

R837

R207

R963

R407

R530

C934

C517

C522

C516

R524

C847

R835

C132

S404

C977

IC806

R828

Q907

Q306

R834

R32

3

C31

9

C41

C34

5C

149

R31

8C

318

R90

4

L254

R21

8C

145

C150

L114

C273

C30

8

R32

0R

906

C90

4

C252

R232

D202

R31

6

R944

D905

C117

D203

C957

C231

R60

2

C253

C153

R209

C23

7

L207

C43

C604

C93

9L2

47

C217

C219

C268

R126

C123

R11

7C

121

C11

8

Q107

C304

C30

0

R202

C90

2R

902

C223

C215

L201

Q202

R238

C11

R37

L101

R38

L23

C11

9

R30

7

C206

C15

6

R72

Q101

R39

R40

C92

R30

8

R33

8

R30

6R

301

C26

L53

C15

7

C131

C125

L106

C19

C21

6C

350

C92

2

X1

R31

5R

12

R4

L11

D4

D9

D2

C43

0

Q408

L2

C9

R101

Q100

C100

L14

C966

Q305

R31

4

C31

6L1

R20

L12

C52

R32

R33

1C

x19

R340

R300

C5

D1

Q4

D6

R429

R42

5R

424

Q304

R97

6R

977

C6

Q2

D3

L13

C44

C36

Q407

C429

Q404

R33

9

R13

R15

D11

C18

1R

26

C98

0

R952

R6

R7

R9

C17

7

Q7

J501

R1

C1

C852

C18

L46

R35

2

R18

C24

C26

6

L54

R18

9C

255

L217

C23

4C

235

C15

5

C23

8L2

34

C94

7C

259

D204

C14

2

C146

R32

9R

205

C21

3C

256

C20

8C

x17

R221

C95

6C

151

C21

2C

106

R21

5R

125

TH102

R12

8C

311

C21

4R

210

C21

8R

266

C22

0

C22

4

R24

3R

355

C10

7L3

9L1

20

C65

5

R92

C11

6

R19

0

R13

0

C31

3R

211

C65

6L1

25R

236

R13

1

R30

2R

201

C20

5C

201

C28

Cx2

4L2

00C

654

D10

9

R10

7

Q105

C12

6

C128

C129

C301

C65

7L1

05L1

07

C10

L502

C932

R317

C57

C60

1L1

8

C66

L21

C351

R24

0

D8

Q911

C42

4L5

01

R33

0

C30

9

C30

5C

58C

7L1

00

Q6

R30

C35

4C

96L2

7C

528

F500

R40

2R

410

C30

2

R31

2R

100

C10

1R

102

C35

5R

31C

402

R32

1

Q300

C61

0R

21

R25

C34

C39

C45

C49

C50

C38

Cx2

1C

406

R32

4

C60

9R

34

L902

R29

C47

C25

L7

C35

8

C35

7C

48

C147

C56

R10

D7

C115

R28

Q5

R16

R43

4

J500

C97

4C

15R

19R

33C

423

R43

5

C22

6R

903

R90

5

C90

3

R15

4

C14

3

R28

1

D10

0R

222

C31

2J504

C33

8

R325

Q200D906

C229

R23

1

L219

L211

L151

D102

C144

L110

C16

2

R200C210

C209

C211

CF201

CF200

L214

R950

R228

C353

C232

R181R799

R223

R22

0

C707 R351

L80 L81

C130

C140L83

C138D101

L109

L112

L113

L118

R30

9

R311

R313

C303

R204

C204

C203

R203C202

C207

Q201C51

C90

5

R208

L17

R907

L16

D901

XF201

C22

1

C11

3

R121

R32

2

C307

IC300

C602

C603R11

C16

R8C14

R14Cx10

L4C20

C17

C102

C103

R105

R10

6

C120

J502

C964

S401

R326

C320

C321

R35

C23

IC2

IC1

R3C27

D10

C37

Q3

C35

C55 C180

Q8

Cx22

Q406A

Q406B

R420C421

R419Cx20

R971

C2

R932

L804

C12 R5

C17

8

L8

C708

L19

R432Q910

C427

D502

VR401

C961

C239

C26

0

D103

Q303

IC301

R21

6

Q203

C148C136

R30

4

Cx2

3R

206

IC200

C278

C65

3L1

21

C11

4R

108

C44

4

L104

R11

8

C35

2

C30

6

R303

C20

0

Q1

L5

C105

R10

3

C122

R10

4

R36

R13

2

C3

C4

Cx9C54

L20

C89

C35

6C

46

R403

R42

6

Q401 Q400

R951

R2

C83

1

C30R706

Cx8

D12

R22

Q405

R13

9

C314

CD200

D902

L203

C254

C346

C233

C236

C159

R305

C965

C104

R428

R427

R422

C374

C951

C135

C376

R433

C327


34

Chapter 7 ADJUSTMENT

7.1 Required Test Equipment Table 7.1

Number Name Parameter requirements 1 Computer Above P2, compatible IBM PC, WINDOWS

98/ME/2000/XPOperating System 2 Programming

software 780 Programming Software

3 Programming cable

Special Serial/USB (CPL-01) programming cable

4 Dubbing cable

CPL-01

5 DC regulator Output voltage:7.4V, output electric current:≥ 5A 6

RF power meter

Test range: 0.5---10W Frequency range: 100MHz—500MHz Resistance: 50Ω SWR≤1.2

7 Frequency

meter

Frequency range: 0.1—600MHz Frequency accuracy: higher than±1×10-6 Sensitivity: higher than 100mV

8 Frequency deviator

Frequency range: DC—600MHz Test range: 0--±5kHz

9 DMM Input resistance: above 10MΩ/V DC, capable of measuring voltage, electric current and resistance.

10 Audio signal generator

Frequency range:2---3000Hz Output level: 1---500mV

11 RF power attenuator

Decrement: 40db or 50db Receive power : higher than10W

12 Standard signal source

Frequency range:10MHz---1000MHz Output level:0.1uV~32mV (-127dBm~-17dBm)

13 Oscillograph Frequency range: DC~20MHz Test range: 10mV~20V

14 Audio Frequency voltmeter

Test range: 10mV~10V

Recommend how to use: item 6, 7, 8, 10, 11 and 12 which listed in the table can be substituted by integrated tester HP8920/HP8921.


35

Figure 7.1 External Speaker/microphone Interface Definition 7.2 Adjustment Items Some detection and adjustment shall be made to the station technical data after changing the components during the maintenance. The debugging introduction of some related circuits goes as follows: Some parameters of the product can be adjusted (“Interphone Performance Tuning”) by use of CCP780 Programming Software of our company. The adjustable parameters are as follows：

（1） Frequency stability （2） RF transmitting high power （3） RF transmitting Middle power （4） RF transmitting Low power （5） Maximum TX voice deviation （6） VOX1(Tight) （7） VOX10 （8） 2/5 tone deviation （9） DTMF deviation （10） MSK deviation （11） DCS/LTR balance （12） DCS deviation （13） CTCSS(67.0Hz) deviation （14） CTCSS(254.1Hz) deviation （15） Battery warning level （16） RX Sensitivity （17） RX squelch 9 open level （18） RX squelch 9 close level （19） RX squelch 1 open level （20） RX squelch 1 close level （21） RSSI(-120dBm) （22） RSSI(-70dBm) （23） TX Low Voltage

Steps for adjustment： a、Enter Computer Test Mode by selecting “Test Mode” in main menu of CCP780 Programming Software.


36

b、Select the items to be adjusted in choice menus, and then adjust the parameters by function keys on the computer keyboard. c、Exit Computer Test Mode after adjustment. 7.3 Adjustment 7.3.1 VCO Adjustment Close “Power-saving Mode”. Set receiving frequency to low frequency point (see Table 2) and in the receiving state, test voltage of PD by DMM and adjust fine-tuning capacitor TC1/TC2 to get CV voltage of 1.0V±0.2V

Set transmitting frequency to high frequency point (refer to Table 2), press PTT and test voltage of PD by DMM, which shall less than 4.0V

Table 7.2 High/ Intermediate/ Low Frequency Point of All Models Low Frequency

Point Intermediate Frequency

Point

High Frequency Point

780-1 136.100 MHz 155.100 MHz 173.975 MHz

7.3.2 PLL frequency calibration Double-click to enter “Frequency Stability” in “Interphone Performance Tuning” to achieve the rated transmitting frequency by adjusting the number from 0 to 255 (Error<200Hz). 7.3.3 Transmitting frequency adjustment Double-click to enter “Transmitting High Power” in “Interphone Performance Tuning” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and set transmitting power to over 5W by adjusting the number from 0 to 255 and observe the operating current (≤1.6A) at the same time. Double-click to enter “Transmitting Low Power” in “Interphone Performance Tuning” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and set transmitting power to over 1W by adjusting the number from 0 to 255. 7.3.4 Transmitting low-voltage alarm Adjust power voltage to 5.8V and double-click to enter “Transmitting Low Voltage” in “Interphone Performance Tuning” Mode for automatic detection of the software, and then click “Save” for exit after no or little variation in numbers. 7.3.5 Frequency offset adjustment Input audio signal (12mV, 1000Hz) at MIC jack of interphone. Adjust the potentiometer


37

VR501 and set frequency offset to ±4.2kHz. 7.3.6 DCS transmitting signal waveform and frequency offset adjustment Double-click to enter “DCS frequency offset” in “Interphone Performance Tuning” Mode, adjust potentiometer VR1 to observe demodulated signal (the waveform shall be smooth and similar to square wave), and then click “Broadband” to adjust all points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively for frequency offset of 0.8kHz. After that, click “Narrowband” to adjust the frequency offset to 0.4kHz.

7.3.7 CTCSS frequency offset adjustment Double-click to enter “QT(67) frequency offset” in “Interphone Performance Tuning” Mode and click “Broadband” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively to 0.75kHz and then click “Narrowband” to adjust the frequency offset to 0.35kHz. Select “QT(254) frequency offset” in “Interphone Performance Tuning” Mode, and the debugging method is the same as that of “QT(670) frequency offset”. 7.3.8 Receiving Sensitivity Double-click to enter “Receiving Sensitivity” in “Interphone Performance Tuning” Mode to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and the number from 0 to 255 for setting max sensitivity of all points. 7.3.9 Receiver Squelch setting Double-click to enter “SQL9 open” in “Interphone Performance Tuning” Mode and click “Broadband” to make the frequency of the transmitting signal corresponding to the receiving frequency (level of -116dBm, modulation signal of 1kHz and frequency offset of 3kHz) showed at each frequency point of the software. Enter all points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively for automatic adjustment of software and then press next point after no big change to numbers. After that, adjust “Narrowband”, the debugging method is the same as that of “Broadband” except the input modulation signal is changed to frequency of 1kHz and frequency offset of 1.5kHz. Select “SQL9 open” in “Interphone Performance Tuning” Mode and click “Broadband” to make the frequency of the transmitting signal corresponding to the receiving frequency (level of -118dBm, modulation signal of 1kHz and frequency offset of 3kHz) showed at each frequency point of the software. Enter all points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively for automatic adjustment of software and then press next point after no big change to numbers. After that, adjust “Narrowband”, the debugging method is the same as that of “Broadband” except the input modulation signal is changed to frequency of 1kHz and frequency offset of 1.5kHz. Select “SQL1 open” and “SQL1 close” respectively in “Interphone Performance Tuning” Mode, and adjust by the same method except the open level of transmitting signal changed to 123dBm and the close level to 125dBm. 7.4 Receiving Low-voltage Alarm Adjust power voltage to 5.8V and double-click to enter “Receiving Low Voltage” in


38

“Interphone Performance Tuning” Mode for automatic detection of the software, and then click “Save” for exit after no or little variation in numbers.

7.5 Adjusting explanation Table 7.3 Voltage controlled oscillator

Item Test condition Instrumentation Test point

Correcting member Requirement Remarks

Setting Supply voltage battery terminal:7.4V

DMM CV

CH: Receiving low frequency point TC2 1.0V±0.2V AdjustmentLocking

voltage CH: Transmitting

high frequency point ≤4.0V Observation


39

Table 7.4 Receiving part

Item Test condition Instrumentation Test point Correcting

member Requirement Remarks

Audio Power

Test frequency: Intermediate Frequency Point Antenna Interface Input: RF OUT ：-53dBm(501μV) MOD：1kHz DEV：±3.0kHz Audio load: 16Ω

(Volume knob clockwise to the end) Audio Power>0.3W

Power of the internal speaker：>1.2W

Sensitivity

CH: Low Frequency Point CH: Intermediate Frequency Point CH: High Frequency Point RF OUT:-119dBm(0.25μV) MOD: 1kHz DEV: ±3.0kHz

Computer Adjustment

SINAD： 12dB or higher

CH: Receiving Center Frequency Point Level-9 RF OUT output:-116dBm

Normal squelch opening after adjustment

Squelch Enable Sensitivity Level-1

RF OUT output:-123dBm

RF signal generator

Oscillograph

Audio frequency

voltmeter

distortion tester

/Integrated tester

Speaker Interface

Computer Test Mode

Normal squelch opening after adjustment


40

Table 7.5 Transmitting part Item Test

condition Instrumentation Test point

Correcting member Requirement Remarks

RF rate Frequency Counter / Integrated Tester

Computer Test Mode Within ±200Hz

DCS waveform (balance)

Oscillograph / Integrated Tester VR501

Nearly flat waveformSquare wave

Power Power 7.4V Power Tester / Integrated Tester Ammeter

Computer Test Mode Adjust to 5W Within

±0.2W

Max Modulation Frequency Offset

CH ：Transmitting Center Frequency Point AG ：1kHz/120mV

VR2 Adjust to ±4.2kHz ±200Hz

Modulation Sensitivity

CH ：Transmitting Center Frequency Point AG ：1kHz/12mV

Frequency deviator/Integration Tester

Check Frequency Offset 2.2kHz~3.6kHz

CTCSS DEV

CTCSS ：67Hz

Frequency deviator/Integration Tester

Computer Test Mode

Adjust to ±0.75kHz ±50Hz

DCS DEV DCS：023N Frequency deviator/Integration Tester

Antenna

Computer Test Mode

Adjust to ±0.75kHz ±50Hz

Battery Warning

Battery Terminal: 5.8V

Computer Test Mode

Indicator light twinkles after adjustment


41

Chapter 8 780-1 BOM

No. TP-780-1 780-1 PARTS LIST Ver. 1.0

No. Parts No. Description Component

Name/Specification Qty. Ref. No.

1 2 3 702CU7801002 780-1 UNIT

4 701CU7801001 780-1 portable two-way radio

1

5 605CU7800101 780-1 packaging BOM

1

6 71200CT01001 CT-01 radio ring 1 7 70700CP01001 CP-01 rapid charger 1

8 7100600113171 600-1 antenna G-RAPK14149101-B0072 1

9 7110CLP01001 CLP-01 clip 1 10 709CA01US001 CA-01US adaptor (Selectable) 1 11 709CA02BZ001 CA-02Brazil adaptor (Selectable) 1

12 70600CB01001 CB-01 Li-ion battery 1700 mAh

(Selectable) 1

13 70600CB02001 CB-02 Li-ion battery 2000 mAh

(Selectable) 1

14 15

16 701CU7801001 780-1 portable two-way radio

17 18 RESISTOR

19 1090400050001 0402 CHIP R 0Ω RC0402JR-070R 22

C374 C923 R4 R7 R36 R38 R216 R231 R419 R513 R823 R826 R834 R836 R839 R840 R901 R911 R966 R973 R975 C808

20 1090410050001 0402 CHIP R 10Ω RC0402JR-0710R 2 R37 R104 21 1090447050001 0402 CHIP R 47Ω RC0402JR-0747R 1 R121 22 1090475050001 0402 CHIP R 75Ω RC0402JR-0775R 1 R128 23 1090410150001 0402 CHIP R 100Ω RC0402JR-07100R 4 R19 R31 R240 R530 24 1090420150001 0402 CHIP R 200Ω RC0402JR-07200R 2 R25 R29 25 1090422150001 0402 CHIP R 220Ω RC0402JR-07220R 3 R189 R211 R215


42

26 1090427150001 0402 CHIP R 270Ω RC0402JR-07270R 3 R139 R154 R938 27 1090433150001 0402 CHIP R 330Ω RC0402JR-07330R 3 R102 R103 R108 28 1090439150001 0402 CHIP R 390Ω RC0402JR-07390R 1 R152 29 1090447150001 0402 CHIP R 470Ω RC0402JR-07470R 2 R5 R13 30 1090456150001 0402 CHIP R 560Ω RC0402JR-07560R 1 R72 31 1090482150001 0402 CHIP R 820Ω RC0402JR-07820R 2 R429 R532

32 1090410250001 0402 CHIP R 1kΩ RC0402JR-071K 20

C531 R2 R9 R33 R222 R281 R328 R407 R409 R413 R420 R427 R433 R434 R831 R833 R932 R951 R952 R967

33 1090412250001 0402 CHIP R 1.2kΩ RC0402JR-071K2 1 R10 34 1090415250001 0402 CHIP R 1.5kΩ RC0402JR-071K5 3 R107 R331 R521 35 1090418250001 0402 CHIP R 1.8kΩ RC0402JR-071K8 2 R522 R908

36 1090422250001 0402 CHIP R 2.2kΩ RC0402JR-072K2 7 R1 R181 R418 R500 R501 R536 R537

37 1090427250001 0402 CHIP R 2.7kΩ RC0402JR-072K7 2 R422 R428

38 1090433250001 0402 CHIP R 3.3kΩ RC0402JR-073K3 10

R100 R153 R203 R204 R303 R329 R424 R425 R548 R972

39 1090436250001 0402 CHIP R 3.6kΩ RC0402JR-073K6 1 R101 40 1090439250001 0402 CHIP R 3.9kΩ RC0402JR-073K9 2 R201 R205

41 1090447250001 0402 CHIP R 4.7kΩ RC0402JR-074K7 17

R32 R92 R105 R106 R342 R416 R804 R805 R806 R807 R808 R843 R902 R907 R909 R926 C907

42 1090456250001 0402 CHIP R 5.6kΩ RC0402JR-075K6 8 R301 R302 R324 R326 R910 R914 R923 R953

43 1090468250001 0402 CHIP R 6.8kΩ RC0402JR-076K8 1 R523 44 1090482250001 0402 CHIP R 8.2kΩ RC0402JR-078K2 3 R339 R410 R426

45 1090410350001 0402 CHIP R 10kΩ RC0402JR-0710K 21

R15 R140 R308 R327 R432 R435 R502 R503 R538 R540 R542 R802 R818 R913 R920 R928 R933 R939 R944 R954 R964

46 1090412350001 0402 CHIP R 12kΩ RC0402JR-0712K 1 R312


43

47 1090415350001 0402 CHIP R 15kΩ RC0402JR-0715K 3 R526 R527 R955

48 1090418350001 0402 CHIP R 18kΩ RC0402JR-0718K 5 R305 R525 R529 R835 R919

49 1090420350001 0402 CHIP R 20kΩ RC0402JR-0720K 1 R940

50 1090422350001 0402 CHIP R 22kΩ RC0402JR-0722K 10

R321 R504 R539 R841 R903 R904 R905 R906 R927 R958

51 1090427350001 0402 CHIP R 27kΩ RC0402JR-0727K 1 R820 52 1090433350001 0402 CHIP R 33kΩ RC0402JR-0733K 4 R11 R825 R929 R963

53 1090439350001 0402 CHIP R 39kΩ RC0402JR-0739K 4 R117 R313 R506 R915

54 1090447350001 0402 CHIP R 47kΩ RC0402JR-0747K 13

R125 R141 R307 R320 R330 R352 R819 R821 R824 R917 R921 R924 R968

55 1090451350001 0402 CHIP R 51kΩ RC0402JR-0751K 1 R822 56 1090456350001 0402 CHIP R 56kΩ RC0402JR-0756K 3 R236 R355 R828 57 1090468350001 0402 CHIP R 68kΩ RC0402JR-0768K 3 R118 R602 R827 58 1090482350001 0402 CHIP R 82kΩ RC0402JR-0782K 2 R126 R918 59 1090491350001 0402 CHIP R 91kΩ RC0402JR-0791K 1 R300

60 1090410450001 0402 CHIP R 100kΩ RC0402JR-07100K 23

R6 R21 R34 R146 R207 R223 R228 R232 R243 R323 R325 R341 R351 R401 R408 R533 R830 R832 R838 R842 R941 R950 R986

61 1090412450001 0402 CHIP R 120kΩ RC0402JR-07120K 1 R340

62 1090415420001 0402 CHIP R 150kΩ RC0402DR-07150K 8 R30 R133 R134 R135 R136 R137 R138 R208

63 1090418450001 0402 CHIP R 180kΩ RC0402JR-07180K 4 R202 R318 R706 R961


65 1090427450001 0402 CHIP R 270kΩ RC0402JR-07270K 3 R18 R316 R317 66 1090433450001 0402 CHIP R 330kΩ RC0402JR-07330K 2 R8 R400 67 1090439450001 0402 CHIP R 390kΩ RC0402JR-07390K 1 R315


69 1090468450001 0402 CHIP R 680kΩ RC0402JR-07680K 2 R912 R922


44

70 1090475450001 0402 CHIP R 750kΩ RC0402JR-07750K 3 R206 R505 R528 71 1090410550001 0402 CHIP R 1MΩ RC0402JR-071M0 5 R16 R142 R524 R82972 73 1090600050001 0603 CHIP R 0Ω RC0603JR-070R 4 L54 L217 R311 R837 74 109064R750001 0603 CHIP R 4.7Ω RC0603JR-074R7 2 R332 R959 75 1090610050001 0603 CHIP R 10Ω RC0603JR-0710R 4 R3 R200 R334 R417 76 1090622050001 0603 CHIP R 22Ω RC0603JR-0722R 2 R403 R799 77 1090647050001 0603 CHIP R 47Ω RC0603JR-0747R 3 L234 R218 R266 78 1090610150001 0603 CHIP R 100Ω RC0603JR-07100R 3 R14 R26 R28 79 1090622150001 0603 CHIP R 220Ω RC0603JR-07220R 1 R402 80 1090633150001 0603 CHIP R 330Ω RC0603JR-07330R 1 R190 81 1090647150001 0603 CHIP R 470Ω RC0603JR-07470R 3 R210 R535 R969 82 1090656150001 0603 CHIP R 560Ω RC0603JR-07560R 1 R20 83 1090618250001 0603 CHIP R 1.8kΩ RC0603JR-071K8 1 R534 84 1090622250001 0603 CHIP R 2.2kΩ RC0603JR-072K2 1 R144 85 1090627250001 0603 CHIP R 2.7kΩ RC0603JR-072K7 1 R209 86 87 1090610350001 0603 CHIP R 10kΩ RC0603JR-0710K 1 R35 88 1090647350001 0603 CHIP R 47kΩ RC0603JR-0747K 1 R338 89 1090610450001 0603 CHIP R 100kΩ RC0603JR-07100K 2 R220 R238 90 1090618450001 0603 CHIP R 180kΩ RC0603JR-07180K 1 R145 91 1090610550001 0603 CHIP R 1MΩ RC0603JR-071M 1 R304 92 93 10910R3950001 1206 CHIP R 0.39Ω RC1206JR-07R39 3 R130 R131 R132 94 95 1190647350001 Thermistor NCP18WB473J03RB 1 TH102 96 97 98 CAPACITOR 99 112043P500091 0402 CHIP C 0.5pF GRM1555C1HR50BZ01D 2 C49 C50 100 1120432P00091 0402 CHIP C 2pF GRM1555C1H2R0BZ01D 1 C122 101 1120433P00091 0402 CHIP C 3pF GRM1555C1H3R0BZ01D 2 C37 C409 102 1120434P00091 0402 CHIP C 4pF GRM1555C1H4R0BZ01D 3 C229 C233 C654

103 1120434P50091 0402 CHIP C 4.5pF GRM1555C1H4R5BZ01D 4 C226 C238 C255 C346

104 1120435P00091 0402 CHIP C 5pF GRM1555C1H5R0BZ01D 3 C45 C239 C345 105 1120436P00091 0402 CHIP C 6pF GRM1555C1H6R0BZ01D 2 C653 C657 106 1120437P00091 0402 CHIP C 7pF GRM1555C1H7R0BZ01D 2 C38 C39 107 1120438P00091 0402 CHIP C 8pF GRM1555C1H8R0BZ01D 1 C655 108 1120439P00091 0402 CHIP C 9pF GRM1555C1H9R0BZ01D 1 C656

109 1120431005091 0402 CHIP C 10pF GRM1555C1H100JZ01D 9 C9 C14 C54 C92 C105 C202 C412 C415 C516

110 1120631105091 0603 CHIP C 11pF GRM1885C1H110JA01D 1 C235


45

111 1120431205091 0402 CHIP C 12pF GRM1555C1H120JZ01D 1 C216 112 1120431505091 0402 CHIP C 15pF GRM1555C1H150JZ01D 1 C100 113 1120431805091 0402 CHIP C 18pF GRM1555C1H180JZ01D 1 C951 114 1120432005091 0402 CHIP C 20pF GRM1555C1H200JZ01D 3 C215 C254 C259 115 1120432205091 0402 CHIP C 22pF GRM1555C1H220JZ01D 3 C28 C51 C947 116 1220432405091 0402 CHIP C 24pF GRM1555C1H240JZ01D 2 C260 C444 117 1220432705091 0402 CHIP C 27pF GRM1555C1H270JZ01D 1 C36 118 1120433005091 0402 CHIP C 30pF GRM1555C1H300JZ01D 1 C35

119 1120433305091 0402 CHIP C 33pF GRM1555C1H330JZ01D 5 C212 C234 C351 C817 C821

120 1120434705091 0402 CHIP C 47pF GRM1555C1H470JZ01D 4 C10 C16 C208 C376 121 1120435605091 0402 CHIP C 56pF GRM1555C1H560JZ01D 1 C338 122 1120431015091 0402 CHIP C 100pF GRM1555C1H101JZ01D 5 C2 C3 C6 C134 C910123 1120431515091 0402 CHIP C 150pF GRM1555C1H151JZ01D 1 C823

124 1120432216091 0402 CHIP C 220pF GRM155R71H221KA01D 5 C26 C205 C206 C530 C533

125 1120433316091 0402 CHIP C 330pF GRM155R71H331KA01D 1 C17

126 1120434716091 0402 CHIP C 470pF GRM155R71H471KA01D 52

C7 C24 C25 C27 C48 C52 C55 C57 C102 C106 C121 C132 C139 C141 C157 C165 C203 C219 C224 C237 C252 C253 C355 C357 C402 C403 C406 C410 C411 C414 C416 C427 C506 C517 C526 C528 C529 C601 C602 C707 C708 C828 C837 C838 C839 C840 C843 C846 C849 C906 C935 C966


C820


46


C11 C30 C41 C96 C101 C103 C107 C114 C116 C117 C120 C123 C125 C129 C143 C147 C159 C178 C218 C220 C231 C232 C278 C314 C350 C354 C407 C604 C609 C610 C912 C916 C922 C932 C957

129 1120431826091 0402 CHIP C 1800pF GRM155R71H182KA01D 1 C833 130 1120432226091 0402 CHIP C 2200pF GRM155R71H222KA01D 1 C816 131 1120433326091 0402 CHIP C 3300pF GRM155R71H332KA01D 3 C500 C920 C929 132 1120433926091 0402 CHIP C 3900pF GRM155R71H392KA01D 1 C502 133 1120434726091 0402 CHIP C 4700pF GRM155R71H472KA01D 1 C204 134 1120435626091 0402 CHIP C 5600pF GRM155R71H562KA01D 1 C308

135 1120436826091 0402 CHIP C 6800pF GRM155R71H682KA01D 5 C309 C334 C501 C921 C930

136 1120438226091 0402 CHIP C 8200pF GRM155R71H822KA01D 1 C300

137 1120431036071 0402 CHIP C 0.01μF GRM155R71E103KA01D 38

C19 C20 C46 C47 C128 C201 C221 C268 C305 C306 C312 C316 C330 C336 C352 C356 C358 C420 C421 C422 C603 C802 C806 C807 C827 C830 C852 C919 C924 C933 C934 C936 C937 C939 C961 C962 C963 C967

138 1120431836071 0402 CHIP C 0.018μF

GRM155R71E183KA01D 1 C301

139 1120432236071 0402 CHIP C0.022μF GRM155R71E223KA12D 2 C524 C847

140 1120433336051 0402 CHIP C0.033μF GRM155R71C333KA01D 5 C318 C320 C321 C423 C503

141 1120434736051 0402 CHIP C0.047μF GRM155R71C473KA01D 2 C319 C832


47

142 1120431046031 0402 CHIP C 0.1μF GRM155R61A104KA01D 35

C1 C4 C58 C104 C113 C131 C156 C207 C209 C210 C211 C213 C256 C302 C303 C322 C327 C400 C419 C522 C525 C848 C902 C904 C905 C911 C914 C915 C925 C943 C944 C945 C968 C972 C981

143 1120431056031 0402 CHIP C 1μF GRM155R61A105KE15D 21

C43 C217 C504 C505 C518 C710 C803 C822 C824 C831 C834 C835 C836 C841 C842 C844 C845 C851 C903 C926 C946

144 112063P750091 0603 CHIP C 0.75pF GRM1885C1H0R75BZ01D 1 C115

145 1120633P00091 0603 CHIP C 3pF GRM1885C1H3R0BZ01D 1 C155 146 1120637P00091 0603 CHIP C 7pF GRM1885C1H7R0BZ01D 2 C273 L18 147 1120634P70091 0603 CHIP C 4.7pF GRM1885C1H4R7BZ01D 1 C44 148 1120637P00091 0603 CHIP C 7pF GRM1885C1H7R0BZ01D 2 C273 L18

149 1120631005091 0603 CHIP C 10pF GRM1885C1H100JA01D 4 C130 C135 C145 C149

150 1120631105091 0603 CHIP C 11pF GRM1885C1H110JA01D 1 C151 151 1120631605091 0603 CHIP C 16pF GRM1885C1H160JA01D 1 C162 152 1120631805091 0603 CHIP C 18pF GRM1885C1H180JA01D 1 C153 153 1120632205091 0603 CHIP C 22pF GRM1885C1H220JA01D 1 C150 154 1120632705091 0603 CHIP C 27pF GRM1885C1H270JA01D 1 C144 155 1120633005091 0603 CHIP C 30pF GRM1885C1H300JA01D 2 C136 C140 156 1120633905091 0603 CHIP C 39pF GRM1885C1H390JA01D 1 C118 157 1120635605091 0603 CHIP C 56pF GRM1885C1H560JA01D 1 C148 158 1120636805091 0603 CHIP C 68pF GRM1885C1H680JA01D 1 C34 159 1120631015091 0603 CHIP C 100pF GRM1885C1H101JA01D 1 C146 160 1120631515091 0603 CHIP C 150pF GRM1885C1H151JA01D 1 C138 161 1120632215091 0603 CHIP C 220pF GRM188R71H221KA01D 1 C119 162 1120631036091 0603 CHIP C 0.01μF GRM188R71H103KA01D 1 C214 163 1120631046091 0603 CHIP C 0.1μF GRM188R71H104KA01D 3 C331 C333 C335 164 1120634746051 0603 CHIP C 0.47μF GRM188R71C474KA01D 1 C931

165 1120631056051 0603 CHIP C 1μF GRM188R61C105KA01D 7 C126 C313 C417 C424 C429 C430 C969


48

166

167 1120731066031 0805 CHIP C 10μF GRM21BR61A106K 15

C5 C23 C127 C200 C304 C307 C408 C519 C527 C829 C913 C917 C940 C956 C970

168 169 1120721047081 CHIP-TAN 0.1μF P TC211P104M035A 3 C12 C18 C177 170 1120721057051 CHIP-TAN 1μF P TEESVP1C105M8R 2 C818 C819 171 1120722257031 CHIP-TAN 2.2μF P TEESVP1A225M8R 2 C15 C311 172 1121021066051 CHIP-TAN 10μF A TEESVA1C106K8R 3 C56 C332 C964 173 1121221077021 CHIP-TAN 100μF TEESVB20J107M8R 1 C337 174

175 1130110000001 CERAMIC TRIMMER CAP 10pF

TZY2Z100A001R00 2 C180 C181

176 177 INDUCTOR

178 1170660100001 0603 CHIP FERRITE BLM18AG601S 14

L1 L7 L19 L39 L46 L207 L247 L400 L403 L500 L801 L803 L804 L903

179 1170722100001 0805 CHIP FERRITE BLM21PG221S 3 L105 L501 L502 180 1170760000001 0805 CHIP FERRITE BLM21PG600S 1 L107

181 1140712205001 SMALL FIXED INDUCTOR 22nH

C2012C22NJ 1 L14


MLG1608B27NJ 2 L23 L120


MLG1608B33NJ 1 L125


MLG1608B47NJ 1 L121


C2012C47NJ 2 L13 L151


MLG1608B56NJ 1 L203


C2012C56NJ 3 L211 L214 L219


MLG1608BR10J 3 L21 L100 L101


MLG1608SR22J 3 L16 L17 L53


C2012CR33J 1 L200


49

191 1140624716001 SMALL FIXED INDUCTOR 0.47μH

MLF1608AR47KT000 1 L4


C2012CR56J 1 L201


MLF1608DR56KT 1 L5

194 1141021027001 SMALL FIXED INDUCTOR 1μH

LQH32MN1R0M23 1 L118

195 1140711025001 SMALL FIXED INDUCTOR 1μH

C2012C1R0J 3 L2 L104 L109


MLF1608A6R8KT 6 L8 L11 L12 L20 L27 L902

197 1152R401R5031 AIR-CORE COIL 3T ER0.4×1.5×3 2 L80 L83 198 1152R301R5051 AIR-CORE COIL 5T ER0.3×1.5×5 2 L81 L114 199 1152R301R5061 AIR-CORE COIL 6T ER0.3×1.5×6 2 L112 L113 200 1152R301R5071 AIR-CORE COIL 7T ER0.3×1.5×7 1 L110 201 1152R351R6081 AIR-CORE COIL 8T ER0.35×1.6×8 1 L106 202 203 DIODE 204 1030000137201 DIODE 1SS372 3 D500 D801 D802 205 1030000022201 DIODE DAN222TL 2 D901 D902 206 1030000013101 DIODE HVU131TRF 1 D101 207 1030000211101 DIODE MA2S111TX 3 D6 D7 D906

208 1030000207701 DIODE MA2S077 4 D100 D102 D103 D109

209 1030019213201 LED(RED) HT19-2132SURC-HHH 1 D400 210 1030019213202 LED(GREEN) HT19-2132SYGC 2 D401 D402

211 1030000037601 VARIABLE CAPACITANCE DIOED

HVC376B 4 D202 D203 D204 D905


1SV278 1 D12


1SV325 6 D2 D3 D4 D8 D9 D10

214 1031544002501 DIOED 1SR154-400TE25 1 D502 215 216 TRANSISTOR 217 1040002136201 TRANSISTOR 2SA1362-GR 1 Q305 218 1040002158601 TRANSISTOR 2SA1586(Y) 1 Q802 219 1040002411601 TRANSISTOR 2SC4116(Y) 1 Q801 220 1040002461701 TRANSISTOR 2SC4617(S) 2 Q8 Q300


50

221 1040002506601 TRANSISTOR 2SC5066-Y 7 Q1 Q2 Q6 Q100 Q101 Q201 Q503

222 1040000012301 TRANSISTOR DTA123JE-TL 1 Q408 223 1040000014301 TRANSISTOR DTA143ZETL 2 Q504 Q902 224 1040000014401 TRANSISTOR DTA144EE-TL 2 Q109 Q303 225 1040000011401 TRANSISTOR DTC114EE-TL 2 Q400 Q401 226 1040000011402 TRANSISTOR DTC114TE-TL 1 Q110

227 1040000014402 TRANSISTOR DTC144EE-TL 13

Q106 Q108 Q200 Q304 Q306 Q403 Q405 Q903 Q906 Q910 Q911 Q912 Q914

228 1040000000401 TRANSISTOR UMC4 N TR 1 Q7 229 1040000000301 TRANSISTOR UMG3NTR 2 Q404 Q407 230 1040000071701 TRANSISTOR FMMT717 2 Q406A Q406B 231 232 FET 233 1050000224301 FET 2SJ243-T1 1 Q5 234 1050000230201 FET ST2302 1 Q307

235 1050002182401 FET 2SK1824 6 Q302 Q500 Q901 Q904 Q905 Q913

236 1050000001201 FET RD01MUS2-T113 1 Q105 237 1050000007201 FET RD07MUS2B-T112 1 Q107 238 1050000250801 FET 2SK508-T1B(K52) 2 Q3 Q4 239 1050000331801 FET 3SK318 2 Q202 Q203 240 241 IC 242 1020620130201 LDO XC6201P302MR 1 IC2 243 1020620130202 LDO XC6201P302PR 1 IC404 244 1020620150201 LDO XC6201P502MR 1 IC902 245 1020000150301 PLL IC MB15E03SL 1 IC1 246 1020000258001 FLASH MEMORY W25Q80BVSIG 1 IC401

247 1020000259101 FM IF DEMODULATOR

NJM2591V 1 IC200

248 1020000306201 MICROPROCESSOR M3062LFGPGP 1 IC403

249 1020000210001 OPERATIONAL AMPLIFIER

NJM2100V 1 IC500


NJM2902V 1 IC300


NJM2904V 2 IC100 IC301


TA75W01FU 1 IC901

253 1020000912401 RESET IC PST9124NR 1 IC400


51

254 1020000282201 AF POWER AMP TDA2822D 1 IC302

255 1020000234601 AUDIO PROCESSOR

AK2346 1 IC806

256 257 258 780 LCD BOARD 259

260 1030019213202 LED(GREEN) HT19-2132SYGC 8 D2 D3 D4 D5 D6 D7 D8 D9

261 262 1090400050001 0402 CHIP R 0Ω RC0402JR-070R 2 R1 R20

263 1090410250001 0402 CHIP R 1kΩ RC0402JR-071K 13 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14

264 1090447350001 0402 CHIP R 47kΩ RC0402JR-0747K 1 R21 265 1090639150001 0603 CHIP R 390Ω RC0603JR-07390R 2 R19 R22 266 1090618250001 0603 CHIP R 1.8kΩ RC0603JR-071K8 4 R15 R16 R17 R18 267 268 1120434716091 0402 CHIP C 470pF GRM155R71H471KA01D 3 C11 C16 C17 269 1120431036071 0402 CHIP C 0.01μF GRM155R71E103KA01D 2 C12 C15 270 1120631046091 0603 CHIP C 0.1μF GRM188R71H104KA01D 3 C3 C4 C10

271 1120631056051 0603 CHIP C 1μF GRM188R61C105KA01D 7 C1 C5 C6 C7 C8 C9 C14

272 1120731066031 0805 CHIP C 10μF GRM21BR61A106K 1 C13 273 274 1040000014402 TRANSISTOR DTC144EE-TL 1 Q2 275 1040000071701 TRANSISTOR FMMT717 1 Q1 276 1020620130201 LDO XC6201P302MR 1 IC1 277 278 279 1212602762201 MIC ELEMENT PF0-6027P-62±2dB 1 MIC1 280 1010780200301 CU780 FPC CU780FPCV01.pcb 1 J2

281 1070780000001 CU780 LCD MODULE

1

282 283 284 OTHERS

285 1221009830401 CHIP CRYSTAL RESONATOR

DSX530GA(9.8304MHZ) 1 X400

286 1221012800001 TCXO NSA0298A(12.8MHZ) 1 X1


DSO221SR-3.6864MHz 1 X802


DSO221SR-4.194304MHz 1 X801


52

289 1080000516501 CRYSTAL FILTER DSF753SBF(51.65MHZ 5*7)

1 XF201

290 1110206303201 FUSE F0603HI3000V032T 1 F500 291 1060000001001 TACT SWITCH SKRTLAE010 1 S404 292 1010780100101 780-1 PCB CU780-1V01.PCB 1 293 1010780200202 780lcd PCB CU780lcdV02.PCB 1 294 1010600200202 CU600 KEY PCB CU6002v02.PCB 1 295 1080000045001 Ceramic Filter ELFY450G 1 CF201 296 1080000045002 Ceramic Filter LTWC450F 1 CF200 297 1230001801001 FPC CONNECTOR 0.5mm 18PIN 1 J801 298 299 1080004502401 Discriminator JTM450C24 1 CD200

300 1102210300001 POWER SWITCH RP08110SNAX-V02-0000 1 VR401

301 1060212000001 ROTARY SWITCH NN02120A0C0 1 S401 302 1230525200801 SOCKET(φ2.5) PJ-D2008K 1 J501 303 1230535302701 SOCKET(φ3.5) PJ-D3027 1 J500 304 305 1211361601001 SPEAKER φ36 16Ω 1W 1 306 307 308 309 STRUCTURE 310 311 2010CU780001X CU780 radio front cabinet black PC1414 1 312 2010CU780002X CU780 LCD lens 1 313 2010CU600002X CU600 PTT plastic key black PC+ABS 2950 1 314 2010CU600003X CU600 ear phone plastic plug black PC+ABS 2950 1 315 2010CU600004X CU600 ear phone cabinet PC+ABS 2950 1 316 2010CU600005X CU600 radio top cover black PC+ABS 2950 1 317 2010CU600006X CU600 volume knob black ABS 700 1 318 2010CU600007X CU600 encoder knob black ABS 700 1 319 2010CU600008X CU600 ear phone cover black TPU 1 320 2010CU600009X CU600 battery locker black PC+ABS 2950 1 321 2010CU600010X CU600 light-guider clear PC 1

322 2020CU600001X CU600 PTT silicon key block 60A 50% high spring silicon

1

323 2020CU600002X CU600 cabinet waterproof ring orange 40A 50% high spring silicon

1

324 2020CU600003X CU600 alarm silicon key orange 60A 50% high spring silicon

1

325 2020CU600005X CU600 power socket washer 60A 50% high spring silicon

1


53

326 2020CU600006X CU600 RF socket washer 60A 50% high spring silicon

1

327 2020CU600007X CU600 knob washer 60A 50% high spring silicon 1 328 2020CU780001X CU780 Keypad rubber 1 329 2020CU780002X CU780 MIC washer 1 330 2030CU600001X CU600 AL cabinet polishing ADC 12 1 331 2030CU600002X CU600 battery metal locker polishing SUS304 1 332 2030CU600003X SMA RF socket 1 333 2030CU600004X Spring Φ2.3X10.5 Φ0.25 spring steel Ni-plate 2 334 2040CU600001X 3 PIN power socket 1 J502 335 2040CU600002X CU600 PTT metal dome plate 1 336 2040CU600003X Φ36mm air filter nylon weave 1 337 2040CU600004X 7mm mic air filter Φ7.0X4.5X0.2 1 338 2040CU780001X CU780 Keypad metal dome plate 339 301070500001X Encoder screw M7X0.75 special shape brass 1 340 301060400001X Volume screw M6X0.75 special shape brass 1

341 301200407001X Machine screw M2.0X4.0 PB(+) Ni-plate nylok blue patch

14

342 301200807001X Machine screw M2.0X8.0 six lobe pan Ni-plate nylok blue patch

2

343 301250607001X Machine screw M2.5X6.0 PB(+) black Ni-plate 2 344 306006005001X Mic washer Φ6.0X0.5mm soft PVC 1 345 2010CU780002X Lcd lens 1 346 2020CU780001X CU780 key board silion 1 347 2020CU780002X CU780 mic washer 1 348 2040CU780001X CU780 key board dome 1 349 304200400001X key board screw 2X4 5 350 304200307001X key board screw 2X3 5


54

Chapter 9 CP-01 Charger

9.1 General Description: Function: intelligent rapid charging Applicable battery: CB-01(1700mAh, 7.4V Li-ion battery)

CB-02(2000mAh, 7.4V Li-ion battery) Battery type identification: External Input power supply: DC12±0.5V, 1000mA, ripples <500mV 9.2 Operating environment Temperature: -5 ±2 -- +55 ±2 Humidity: 95%@40 9.3 Safety requirements In accordance with safety requirements of CCC, CE and UL, etc. 9.4 Technical Specifications

Current: 850±100mA Max. charging time : 300 minutes Max. Battery temperature: +55 Specified voltage of charged battery: Nickel-hydrogen battery: recovery the battery when the voltage < 3.7V; pre-charging when the voltage < 6.4±0.1V, when the battery voltage reaches 6.4±0.1V, the charging turns to rapid charging. When the battery voltage reaches 8.35V, the battery will be deemed as full and the charging will be stopped. Li-ion battery: pre-charging when the voltage < 6.4±0.1V, when the battery voltage reaches 6.4±0.1V, the charging turns to rapid charging. Charging process checking: battery voltage, battery temperature rise, - V, charging time,

max. Battery temperature 9.5 LED Status Table:

LED Status RED GREEN Standby/battery

not installed 0.2s ON 4.5s OFF

/

charging ON / Charging

completed / ON

Error 0.2s ON 0.2s OFF

/


55

Chapter 10 Block and Schematic

A

B

C

DD

C

B

A

ANT

LPF

Q107RD07

D101HVU131

RFAMP

ANTSW

Q105RD01

RFAMP

Q1012SC5066

RFAMP

D100,D200MA2S077

T/RSW

Q1002SC5066

RFAMP

Q62SC5066

BUFFAMP

Q2

2SC5066

RFAMP

Q32SK508

TXVCO

Q7,Q5

2SJ243,UMC4DCSW

Q42SK508

RXVCO

Q82SC4617

RIPPLFILTER

LoopFilter

LPF12.8MHzLPF

IC1MB15E03SL

5CT/R

QTTCXO

QTVCO

5C

DET

Q108DTC144EE

DCSW

APCSW

CURRENT

IC100NJM2904V

B

APC

PLL_DATPLL_CLKPLL_LE

Q2033SK318

D202

RFAMP BFP

D203D905

BFP

Q2023SK318

1stMIXER

XF201

51.65MHz

First IF

Q2012SC5066

IFAMP

CF200

450MHzIF

Q12SC5108

X4

CD200450KHz

5R 5R

Q303DTA144EE

RX_W/N SW

Q406AFMMT717

Q408DTA123JE

Q406BFMMT717

5T

5RCSAVE

IC902XC6201P502MR

IC404XC6201P302PR

3M

Q3072SK1588

Q401DTC114EE

MUTE

DC SW

SW

IC302TDA2822D

AF

D401GREEN

AMP

LED

Q306DTC144EE

DCSW

Q304DTC144EEDCSW

Q3052SA1362

DCSW

Batt DetPROTECT

Q400DTC114EE DC SW

D400RED LED

IC401

FLASH

X4009.8304MHz

Q407DTC144EE SW

+-

D204

APC

Second

EN0

EN1

GND

BATT

BATT

PWR SW / VOL

SP

MIC

EXT SWSB SB

AFCO

CH SW

IC200TA31136

RSSIBUSY

5R5R 5R

5C5C 5T

APC

PTT

SW1

SW2

ALARM

SB SB

LEDTX LEDRX

IC403

MICROPROCESSOR

BSHIFT

XOUT

XIN3M

RESETVOXRXDBUSYBATT

RSSIDCS-IN

EN0EN1

PTTSW1SW2ALARM

5TC5RC

TXDAFCOAPCSW SAVE

APC

QTVCOQTTCXO

MICMUTEBEEPTX-W/NRX-W/N

PLL-DATPLL-CLKPLL-STB

LEDTXLEDRX

IC901TA75W01FU

COMP

IC500BNJM2900V

AMP

IC500ANJM2900V

AMP

5M 5M

VOX

5R

SB

IC300B

IC300A

DCS-INLPF

AMP

IC300C

HPF

IC300D

HPF

NJM2902V

5R

5R 5R5R

IC301B

LPF

IC301ANJM2904V

LPF

5R 5R

136-174MHz

780-1 BLOCK DIAGRAM

VER 1.0

Title

Size

A3

Number Revision

Date:File:

Sheet ofDrawn By:

X8023.6864MHz

IC806

AUDIO PROCESSOR

XIN

3M

A-TCLKA-TDATAA-DI/OA-RDTA-SCLK

A-ADR

A-TCLK A-TDATAA-DI/OA-RDT

A-SCLKA-ADR

MOD

IC805DTMF

5R

B-ACK

B-SDRECEIVER

B-ESt

X8014.194304MHz

XIN

B-ACK

B-SD

B-ESt

TDIN

TDIN

SB

5TC

5C

5R

5M

LAMPLCD-1~5

LCD MODULE

KEY-1~8

KEY BOARD

5R

1 2 3 4 5 6 7 8 9 10 11 12 13

A

B

C

D

E

13121110987654321

E

D

C

B

A

1

2

3

5

4

NC

SUB

GND

VCC

OUT

IC400

PST9124NR

R401100k

R400330k

C4000.1u

C403470p

R1 2.2k

PLL-

CLK

PLL-

UL

PLL-

ENPL

L-D

AT

C2100p

C3100p

C6100p

R21k

D7MA2S111

C10.1u

C4

0.1u

C510u

R310R

C7470p

R6100k

C9

10p C1410p

PLL-DATPLL-EN

PLL-CLK

PLL-UL

R4164.7k

C27470p

C2310u

R1133k

R12

C25

470p

C4071000p C414

470p

C410470p

C40810u

C416470p

C4171u

R411220kR4071k

R408100k

Q403DTC144EE R409

1kC4093p

Q400DTC114EE

Q401DTC114EE

R402220R

R40322R

C406470p

R4268.2k

C402470p

R4108.2k

R342

4.7k

D40

0LT

8A13

-54-

UR

93-7

5

D40

1LT

8A23

-54-

75R41710R

C41510p

C41210p

C411

470p

R40R

C1047p R8

330k

Q12SC5066

L4470nC17330p

C19

0.01u

L16220n

C1647p

L17220n

L5560n

C26220p

C5122p

C2822p C20

0.01u

R14100R

R5002.2k

R5012.2k

R5130R

C5003300p

C5016800p

Q404UMG3N

Q407UMG3N

Q406AFMMT717

R4222.7k

R4282.7k

R4201k

R429820R

R43210k

R4253.3k

R4243.3k

C427470p

C4230.033u

R43510k

R4190R

C4210.01u

C4301u

C4241u

R50210k

R415220k

R4331k

R4271k

R4182.2k

R4341k

R421220k

C4291u

C4220.01u

C4200.01u

C5023900p

C316

0.01u

C3020.1u

C3120.01u

C3200.033uC321

0.033u

C3050.01u

C503

0.033u

C309

6800p

R541

R340120k

R315390k

R31212k R314

470k

R3033.3k

R30091k

R32122k

R322220k

SP

R3110R

R3041M

R33847k

R3015.6k

R307

47k

R3025.6k

R306220k

R3293.3k

R3245.6k

R3265.6k

C313

1u

C3008200p

C3180.033u

C3190.047u

C3085600p

R316270k

R31339k

R30518k

R323 100k

R318 180k

R325100k

R207100k

R2053.9k

R320 47k

C3112.2u

C338 56p

C20847p

C3141000p

C206

220p

C205220p

C20210p

C214

0.01u

C2070.1u

C2110.1u

C212

33pC2100.1u

R202180k

R2013.9k

R206750k

R208150k

R210470R

R2092.7k

Q2012SC5066

C221

0.01u

C223

C2090.1u

C215

20p

R32710k

Q307ST2302

C3300.01u

C3350.1u

C9310.47u

R335

R33410R

R3324.7R

Q306DTC144EE

Q304DTC144EE

C3360.01uC334

6800p

C9321000p

R336R333470k

R3311.5k

R3398.2k

R505

750k

R50422k

R503

10k

R50639k

C505

1u

Q5002SK1824

R5236.8k

R5211.5k

R5221.8k

C516

10p

C517470p

C5181u

R5241M

R52518k R526

15k

R52715k

R528750k

C521

C522

0.1u

D500

1SS372

R530100R

R532820R Q503

2SC5066

C524

0.022u

C526470p

C525

0.1u

R52918k

R533100k

L500

601s

R5341.8k

R535470R

C529470p

C5311k

F500

3.0A C528470p

R5372.2k

R5362.2k

C322

0.1uR3281k

C506

470p

C2560.1u

C30710u

R20010R

C20010u

C203470p

R2033.3k

R2043.3k

R30810k

R309470k

C303

0.1uC2044700p

C2010.01u

C2130.1u

C3060.01u

C301

0.018u

C530220p

L501221s

AUDIO AMPACTIVE FILTER

AUDIO MUTE SW

AUDIO MUTE SW

LED

TX LE

D B

USY

R5483.3k R413

1k

780-1

DR:

11.05.08

File:

STAND: CHKD: DateSheet

A

APPD: VER

1

C57470p

C580.1u

CD200

450KHz

R3510k

C6030.01u

C602470p

C601

470p

C6101000p

C6091000p

L1601s

C30410u

R317270k

Q3002SC4617(S)

C710

1u

R9010R

R90522k

R9074.7k

R90622k

R90422k

R9024.7k

R90322k

C9031u

C9050.1u

C902

0.1u

C9040.1u

D902

DAN222

D901

DAN222

Q9012SK1824

R9081.8kC906

470p

R9105.6k R912

680kR9110R

R9145.6k

R91310k

R91747k

R91539k

R9094.7k

R916C9150.1u

C9121000p

C911

0.1u

C909

C910100p

C908

R91882k

R922680kR919

18k

R92147k

R92010k

C9074.7k C914

0.1uC9161000p

J501

2.5mm

J500

3.5mm

C9203300p

C9216800p

C5041u

C9221000p

C9230R

Q902DTA143ZE

Q903DTC144EE

C9240.01u

R92447k

R9264.7k

R923 5.6k

Q9042SK1824

Q9052SK1824

Q906DTC144EE

C9250.1u

R95822k

R961

180k

C926

1u

R92722k

R92810k

R929

33kC9293300p

C9306800p

L502221s

C3310.1u

C3330.1u

C533220p

C9340.01u

C935470p

C9360.01u

C9390.01u

C9370.01u

R931

R932 1k

R93310k

C94010u

C943

0.1u

R938270R

R941100k

C9461u

R94410k

C9440.1u

R93910k

R94020k

C9450.1u

L903601s

12

34

12

34

R9511k

R9521k

C9330.01u

R9535.6k

R95410k R955

15k

TH201

Q200DTC144EE

C9610.01u

Q3052SA1362

C327

0.1u

R33047k

C9620.01u

C9630.01u

Q303DTA144EE

R9594.7R

Q910DTC144EE

Q405DTC144EE

C965

C966470p

Q911DTC144EE

C9670.01u

R96333k

C968

0.1u

R96410k

D40

2LT

8A23

-54-

75

C9691u

Q504

DTA143ZE

Q912DTC144EE

R9660R

Q9132SK1824

R967

1k

R96847k

Q914DTC144EE

D906MA2S111

R969470R

Vcc4

VC1

Xout3

Gnd2

X1

12.8MHz

X4009.8304MHz

fin8

GN

D6

Do

5

Vcc

4

Vp

3

OSC

out

2

OSC

in1

ФR

16

ФP

15

LD/fo

ut14

ZC13

PS12

LE11

Dat

a10

Xfin

7

Clo

ck9

IC1MB15E03SL

OUT IN

XF20151.65MHz

C978

C977

C976

C979

C

DE

R971 C980

C9810.1u R972

3.3k

R9730R

VCC8

/HOLD7

CLK6

DIO5

GND4

/WP3

DO2

/CS1

IC401

W25Q80B

Vdd8

Sck7

Vref6

Doutx5

Vda4

Gnd3

Douty2

Tout1

IC903

MENDOWN

1

7 8

14

VSSVDD

+ -+-

+- + -

IC300

NJM2902V

4 5

81IC901

TA75W01FU

4 5

81IC301

NJM2904V

45

8 1

IC500

NJM2100V

FILO

QU

AD

FILI

IFO

DEC

OSC

IO

SCO

MIX

OV

CCIFI

RSSI

ND

ETN

REC

MIX

IE

9

1

10

2

AF

345

1615

6

14

7

13

8

1211IC200

NJM2591V

In1-8

In1+7

In2+6

In2-5

Gnd4

Out23

Vdd2

Out11

IC302

TDA2822D

C91310u

C91710u

C51910u

C33210u

C337

100u

C96410u

C97010u

C52710u

D5021SR154-400

Q408DTA123JE

Q3022SK1824

OUT IN

CF200450k F

OUT IN

CF201 450k G

11

22

33

44

55

66

77

88

S401

12345

VR401

OUT IN

GND

IC902 XC6201P502MR

OUT IN

GND

IC2XC6201P302MR

OUT IN

GND

IC404XC6201P302PR

S404

VO

X

VOX

MIC

-MU

TE

MIC

-MU

TE

AFC

O

AFC

O

PCTV

PCTV

EN1

EN0

EN0

EN1

RXD

2

TXD

2

RX

MU

TERXMUTE

RXVCO

5RC

5RC

VCCN

VCC

N

GLED

GLE

DRL

ED

RLED

TDIN

TDIN

SPK

SW

SPK

SW

EXTP

TT

EXTP

TT

5TC

5TC

SAVE

SAV

E

DTM

F

DTM

F

DCS-IN

DCS

-IN

MID

DLE

MIDDLE

NA

RRO

W

NARROW

L-A

UD

IO

L-AUDIO

RSSI

RSSI

APC

SW

RESE

T

RESET

DCSTCXO

DCS

TCX

O

F-CL

K

F-CL

K

F-D

IO

F-D

IO

F-D

I

F-D

I

F-CS

F-CS

ST-R

eset

ALARMC

ALA

RMC

MANDOWN

MANDOWN

ST-Aout

ST-A

out

ST-Ain

ST-A

in

TONEIN

ST-Mout

ST-Min

ST-M

out

ST-M

in

RX-W

/N

RX-W/N

DCS

VCO

DCS

VCO

BEEP

-AF

BEEP-AF

GND1

PTT2

SK13

SK24

K1

KEYBOARD

SK2

SK1

PTT

SK2

SK1

PTT

BUSY

BUSY

R-AUDIO

R-AUDIO

L21uH

Cx3

BSH

IFT

3M

VSS

XO

UT

XIN

TOPKEY

BATT

C8060.01u

C8070.01u

R8064.7k

R808

4.7k

R8054.7k

R8044.7k

R8074.7k

R8370R

L801601s

L403601s

L400601s

PCTV

1D

TMF

2TD

IN3

F-C

S4

F-D

I5

BY

TE6

CN

VSS

7F-

CLK

8F-

DIO

9R

ESET

10X

OU

T11

VSS

12X

IN13

VC

C141516

A-R

DT

17A

-TC

LK18

A-D

I/O19

A-T

DA

TA20

A-D

IR21

VC

CN

22A

-SC

LK23

DC

SVC

O24

ST-R

eset

25

DCSTCXO26

RXD227

TXD228

TXD129

RXD13031

BSHIFT32

TXD033

RXD034

RXVCO3536

RXMUTE37

BEEP-AF3839

PLL-CLK40

PLL-DAT41

PLL-EN42

PLL-UL434445

5TC46

NARROW47

MIDDLE48

GPS-ON49

SAVE50

LCD-376LCD-277LCD-178K879K780K681K582K483K384K285K186BATT87RSSI88BUSY89VOX90DCS-IN91DTMF-IN92R-AUDIO93AVSS94L-AUDIO95VREF96AVCC97RX-W/N98MANDOWN99TEMP100

SPK

SW51

ALA

RM

C52

AFC

O53

5RC

54

RLE

D55

GLE

D56

TOPK

EY57

EXTP

TT58

MIC

-MU

TE59

VC

C60

APC

SW61

VSS

62

PTT

63

SK1

64

SK2

65

LAM

P66

LCD

-567

LCD

-468

B-S

D69

B-A

CK

70

B-E

St71 72

EN0

73

EN1

74 75

IC403M3062LFGPGP

C8031u

R80210kC802

0.01u

TEMTE

M

BSHIFT

TXD

0

RXD

0

RXD1TXD1

TXD0RXD0 TONEIN

AGNDIN

AGND

TXIN

TXINO

LIMLV

EXIT

MOD

VSS

TCLK

TDATA

DI/O

RDF/FD SCLK

DIR

XOUT

XIN

VDD

EXFOUT

RXAFIN

RXAF

RXLPFO

RXINO

RXIN

TEST1

2

3

4

5

6

7

8

9

10

11

12 13

14

15

16

17

18

19

20

21

22

23

24

IC806AK2346

A-T

CLK

A-T

DA

TAA

-DI/O

A-R

DT

A-D

IRA

-SCL

K

C824

1u

C823

150p

R82856k

R82768k

C82133p

C822

1u

C8270.01u

R8230R

R82533k

R82447k

C820560p

C81733p

R818 10k

R81947k

C816

2200p

R82251k

R82147k

R82027k

C828470p

C82910u

C8300.01u

C831

1u

Vcc

OE

Xout

Gnd1 2

34X802

3.6864MHz

A-D

IRA

-TD

ATA

A-D

I/O

A-S

CLK

A-T

CLK

A-R

DT

B-ES

t

B-SD

B-A

CK

LAM

PLC

D-5

LCD

-4

LCD-3LCD-2LCD-1K8K7K6K5K4K3K2K1

ST-R

eset

TONEIN

R8260R

C825

PCTV

R8291M

C8320.047u

C834

1u

C8331800p

C8511u

R838100k

R83518kC8470.022u

D801

1SS372

D802

1SS372

C835

1u

C836

1u

C839

470p

C837470p

C838470p

C846470p

C840

470p

C8411u

C8421u

C843470p

C8441u

C8451u

R832100k

R830100k

R8331k

R8311k

R8340R

Q801

2SC4116

Q802

2SA1586

C8080R

R8360R

C8480.1u

C849470p

K1

1K

22

K3

3K

44

K5

5K

66

K7

7K

88

LCD

-19

LCD

-210

LCD

-311

LCD

-412

LCD

-513

LAM

P14

VC

C15

GN

D16

MIC

17

0

18

J80118pin

LCD

-5LC

D-4

LCD

-3LC

D-2

LCD

-1K

8K

7K

6K

5K

4K

3K

2K

1

Q406BFMMT717

Cx8

Cx10

Cx19

Cx21 Cx22

Cx20

Cx24

Cx23

R9750R

C983

L803601s

L804601s

-

+

J502DC +7.4V

C974 C9720.1u

C973C971

VC

CG

ND

TX RX

EN VB

P

J503 GPS

C804

VB

DIR

BA

GND

VA1

2

3 4

5

6IC803

C805OUT IN

GND

IC801

C850

R976

R977L905

C984 R978

TX1

RX

0TX

0R

X1

Sub

AG

ndR

eset

TXH

AFO

AFI

MIC

Vcc

J504SmarTrunk

R979

R980 R981

R982

R983

C985

GPS

-ON

GPS-ON

C8181u

C8191u

C8520.01u

R8390R

R8400R

R84122k

R842100k

LAM

P

C9190.01u

C4190.1u

C941

C952

C953R8434.7k

L404

L906

C986 C987

R53810k

R53922k

R54010k

R54210k

RXD2TXD2

R984470k

R985470k R986

100k

R5470R

C120.1u

R70R

R101.2k

R91kC152.2u

C180.1u

R13470R

R1510k

L7601s

R20560R

Q22SC5066

R19100R

R18270k

C24470p

C54

10p

R21100k

R324.7k

D6MA2S111 C52

470pC55470p

C5610u

Q82SC4617(S)

R211220R

Q109DTA144EE

R145180k

R14147k

R1421M

R146100k

R137150k

R138150k

R135150kR133

150k

R14010k

R136 150kC134 100p

C132470p C141

470p

C139470p

R134150k

R1442.2k

R1320.39R

R1300.39R

R1310.39R

TH10247k

C1560.1u

C157470p

C165470p

R1533.3k

R152390R

R341100k

C237470p

C224470p

Q110DTC114TE

R:3VT:0V

Q108DTC144EE

Q106

DTC144EE

D903

R161M

4 5

81IC100

NJM2904V

C95610u

C12710u

RXV

CO

APC

SW

CV(TP1)

C1781000p

Cx9

Cy1Cy3

ANT

5T

ANTENNA SW

7.5V

L1120.3*1.5*6T

L1130.3*1.5*6T

L1140.3*1.5*5T

L1100.3*1.5*7T

D102MA2S077

D103MA2S077

C14910p

L1091uH

C1431000p

D101

HVU131

C1591000p

L810.3*1.5*5T

L830.4*1.5*3T

L800.4*1.5*3T

L1060.4*1.5*8T

L107

600sC1251000p

C1280.01u

C1261u

C1291000p

C3520.01u

C1310.1u

R12875R

R12547k

R12682k

C1231000p

L105221s

C1201000p

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C114

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R11739k

R11868k

C1161000p

R380R

R39 R40

R1071.5k

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C111000p

R72560R

R108330RC1071000p

L39601s

C350

1000p

C376

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R1064.7k

D100

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D10

9

MA

2S07

7

C1553p

C2737p

C15318p

C15022p

C15111p

C16216p

C14427p

C14510p

C11839p

C119

220p

C13510p

C13630p

C138

150pC14030p

C142

C146

100p

C14856pL23

27nHL101100nH

L120

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R139270R

R154270R

R190330R

C13010pC444

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Q1012SC5066

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C48470p

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601s R331k

C102470p

C1040.1u

C708

470p

R706180k

R1013.6k

R102330R

C1011000p

R10410R

R103330RC1031000p

C105

10p

R1054.7k

C354

1000p

C351

33p

R1003.3k

C100

15pR240100RC96

1000p D9

1SV

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1SV325 C3627p L14

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C444.7p

C460.01u

C49

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R28100R

C1471000p

R26100R

C35

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C66C455p

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5

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R30150k

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D11

D10

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C387p

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R35247k

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C500.5p

C34

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C89

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L86.8uH

L116.8uH

L126.8uH

L187p

L206.8uH

L21100nH

L276.8uH

L46601s

L100100nH

L9026.8uH

R31100R

R29200R

Q1002SC5066Q6

2SC5066

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Q32SK508(K52)

C18010p

C18110p

C1770.1u

R215220R

C2201000p

R2310R

R232100k

C253

470p

C255

4.5pC236 C260

24p

C25420p

C2334p

C234

33p

C235

11p

C2171u

MIXER

C707470p

R351100k

C346

4.5pL21156nH

C95118p

C3455p

R60268k

R221C231

1000p

R21847R

R1812.2k

R189220RC41

1000p

C232

1000p

C374

0R

R223100kC957

1000p

C226

4.5p

C238

4.5p C2294p

C2395p

C106

470p

R35556k

C43

1u

C2680.01u

R220100k

R243100k

D203HVC376BD

905

HV

C37

6B

C94722p

C25920p

R228

100k

R2160R

C117

1000p

R950100k

C6041000p

L254

L21456nH

R79922R

C353

R924.7k

C122

2p

C278

1000p

R238100k

C6558p

C6569p

C6576p

C653

6p

C654

4p

L200330nH

L201560nH

R2811k C216

12p

R26647RC219

470p

C218

1000p

R23656k

D20

2H

VC

376B

D204HVC376B

C252

470p

L53220n

L540R

L12147nH

L12533nH

L15147nH

L20356nH

L207601s

L2170R

L21956nH

L23447R

L247601s

Q2033SK318

Q2023SK318

5R

R2221k

TP2

C266

C3560.01u

C355470p

C357470p

C3580.01u

C121470p

Cx17

R22

CV

TP2

GND

OSCIN

OSCOUT

INPUT VDD

ESt

ACK

SD

12345678 9

10111213141516

IC805

B-SD

B-A

CKB-

ESt

C811C814

R812C810C809

C812C815

R813

R816R817

L802

Vcc

OE

Xout

Gnd1 2

34

X801

R809

R814

R810

TON

EIN

R811

C813

Q907

C826

C853


56

Appendix 1 Abbreviations

AMP (amplify, amplifier) ANT （antenna） APC （automatic power control） BPF （band pass filter） CTCSS （continuous tone control squelch system） DCS （Digital code squelch） DEMOD （demodulation） HPF (high pass filter) IDC (instantaneous deviation control ) IF （intermediate frequency） LED （Light-Emitting Diode） LNA （low noise amplifier） LPF （low pass filter） MCU （micro control unit） MIC （microphone） MOD (modulation) MONI （monitor） PLL （phase lock loop） PTT （push-to-talk） RX (receiver) SPK (speaker) TCXO （Temperature Compensated Crystal Oscillators） TX （transmitter） UL (un-lock) VCO （voltage control oscillator）


57

Appendix 2: Main Technical Indexes

Technical Parameters 780-1 7.1 General Specification Frequency (136 ~ 174) MHz Number of channels 512 Channel separation W:25 kHz /M:20KHz/N:12.5kHz Working temperature -30 ~ +60 Antenna Impedance 50Ω Frequency Stability ±2.5ppm Battery (Standard Configuration)

Lithium-ion Battery: 1700mAh 7.4V

Dimension (W×L×H) 113 mm ×54.5 mm×35 mm Weight 355g (With battery and antenna) 7.2 Receiving part Sensitivity (12dB SINAD) 0.25μV(W) / 0.28μV(N) Adjacent channel selectivity

W:≥ 70dB / N:≥60dB

Intermodulation immunity ≥70dB(±50, 100kHz) Audio Output Power 1W (16Ω) Audio distortion ≤5% 7.3 Transmitting part Transmitting Power 5W Modulation Mode F3E Clutter and Harmonics -36dBm ＜ 1GHz, -30dBm ＞1GHz Residual FM（300~3000Hz）

W:≤-45 dB / N:≤-40dB

Audio distortion（300~3000Hz）

≤5%

Adjacent power W:≥70dB / N:≥60dB Max Frequency Offset W:≤±5kHz / M:≤±4kHz /N:≤±2.5kHz


58

Appendix 3: Troubleshooting No. Problems Solutions

1

The radio cannot be switched on or no display after switched on.

Battery pack may not be installed properly. Remove the battery pack and install it again.

Battery power may be insufficient. Recharge or replace the battery pack.

2 The battery power consume quickly after charging.

The battery life is finished; please replace it with a new battery pack.

3

Cannot talk to or hear other members in your group.

The frequency or CTCSS/DCS signaling are not identical and please reprogram it.

Make sure the setting of the selective signaling 5-Tone in he RX Squelch Mode is proper.

Beyond the radio efficient communication range.

4

Other voices from non-group members are heard on the channel.

Change the CTCSS/DCS tone, and make sure change the tone on all radios in your group.

Please set 5-Tone selective signaling on the channel.

5 Communication range is too small.

Make sure the antenna is well connected. Make sure the antenna is the originally supplied one. Check if the battery power is in the normal state. Ask your local dealer to adjust the squelch level.

6 Unable to transmit.

Make sure the PTT button has been pressed completely.

Battery power may be insufficient. Recharge or replace the battery pack.

Transmitting frequency has not been set on the channel and the radio has been remote killed.

7 Noise is too loud. Battery power may be insufficient. Recharge or replace

the battery pack. Beyond the efficient communication range.

780-1 Service Manual · 780-1 Service Manual 3 Chapter 1 General 1.1 Introducton i This manual...

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Transcript of 780-1 Service Manual · 780-1 Service Manual 3 Chapter 1 General 1.1 Introducton i This manual...