Published by JH 0564 TV Service Printed in the Netherlands Subject to modification EN 3122 785 15381
©Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
Colour Television Chassis
L03.2LAA
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Contents Page1. Technical Specifications, Connections and Chassis Overview 22. Safety Instructions, Warnings, and Notes 43. Directions for Use 54. Mechanical Instructions 65. Service Modes, Error Codes, and Fault Finding 76. Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram 11I2C and Supply Voltage Overview 12Testpoint Overview Mono Carrier and CRT Panel 13
7. Circuit Diagrams and PWB Layouts Diagram PWBMono Carrier: Power Supply (A1)14 21-24Mono Carrier: Deflection (A2)15 21-24Mono Carrier: Tuner IF (A3)16 21-24Mono Carrier: Video Processing (A4)17 21-24Mono Carrier: Audio - BTSC Stereo Decoder (A5)18 21-24Mono Carrier: Audio Amplifier + Mono Sound Processing (A6)19 21-24Mono Carrier: Front I/O + Front Control + Headphone (A7)20 21-24CRT Panel (B1)25 26
8. Alignments 279. Circuit Descriptions, List of Abbreviations, and IC Data Sheets34
Abbreviation List 3710. Spare Parts List 3911. Revision List 42
Technical Specifications, Connections and Chassis OverviewEN 2 L03.2L AA1.
1. Technical Specifications, Connections and Chassis Overview
Index of this chapter:1.1 Technical Specifications1.2 Connection Overview1.3 Chassis Overview
Note: Figures below can deviate slightly from the actual situation, due to the different set executions.
1.1 Technical Specifications
1.1.1 Vision
Display type : CRT, DV, FSQScreen size : 14” (37 cm), 4:3
: 21” (55 cm), 4:3Tuning system : PLLTV Colour systems : NTSC M/N 3.58Video playback : NTSC M/N 3.58, 4.43
: PAL B/GChannel selections : 181 presets
: Full-Cable
1.1.2 Sound
Sound systems : FM-mono(3005-models)
: BTSC with SAP(3205-models)
Maximum power (WRMS) : 1 x 1 (3005-models): 2 x 1 (3205-models)
1.1.3 Miscellaneous
Power supply:- Mains voltage (VAC) : 220-240 (/44 models)
: 105-132 (/55 models)
- Mains frequency (Hz) : 50 / 60
Ambient conditions:- Temperature range (°C) : +5 to +40- Maximum humidity : 90% R.H.
1.2 Connection Overview
Note: The following connector colour abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1 Front Connections
Figure 1-1 Front connections
Mini Jack: Audio Head phone - OutBk - Head phone 8 - 600 ohm /
Technical Specifications, Connections and Chassis Overview EN 3L03.2L AA 1.
1.3 Chassis Overview
Figure 1-3 Chassis overview
B1
MONOCARRIER
A1
A2
A3
A4
POWER SUPPLY
DEFLECTION
A5
AUDIO AMP + MONO SOUND PROC.
TUNER IF
IF, VIDEO PROCESSING, CONTROL,AND SYNC.
FRONT I/O + FRONT CONTROL+ HEADPHONE
AUDIO BTSC STEREO DECODER
CRT PANEL
A6
A7
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Safety Instructions, Warnings, and NotesEN 4 L03.2L AA2.
2. Safety Instructions, Warnings, and Notes
Index of this chapter:2.1 Safety Instructions2.2 Maintenance Instructions2.3 Warnings2.4 Notes
2.1 Safety Instructions
Safety regulations require that during a repair:• Connect the set to the Mains (AC Power) via an isolation
transformer (> 800 VA).• Replace safety components, indicated by the symbol �,
only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.
• Wear safety goggles when you replace the CRT. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: • General repair instruction: as a strict precaution, we advise
you to re-solder the solder connections through which the horizontal deflection current is flowing. In particular this is valid for the:1. Pins of the line output transformer (LOT).2. Fly-back capacitor(s).3. S-correction capacitor(s).4. Line output transistor.5. Pins of the connector with wires to the deflection coil.6. Other components through which the deflection current
flows.
Note: This re-soldering is advised to prevent bad connections due to metal fatigue in solder connections, and is therefore only necessary for television sets more than two years old.• Route the wire trees and EHT cable correctly and secure
them with the mounted cable clamps.• Check the insulation of the Mains (AC Power) lead for
external damage. • Check the strain relief of the mains (AC Power) cord for
proper function, to prevent the cord from touching the CRT, hot components, or heat sinks.
• Check the electrical DC resistance between the Mains (AC Power) plug and the secondary side (only for sets which have a Mains (AC Power) isolated power supply): 1. Unplug the Mains (AC Power) cord and connect a wire
between the two pins of the Mains (AC Power) plug. 2. Set the Mains (AC Power) switch to the "on" position
(keep the Mains (AC Power) cord unplugged!). 3. Measure the resistance value between the pins of the
Mains (AC Power) plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 Mohm and 12 Mohm.
4. Switch "off" the set, and remove the wire between the two pins of the Mains (AC Power) plug.
• Check the cabinet for defects, to avoid touching of any inner parts by the customer.
2.2 Maintenance Instructions
We recommend a maintenance inspection carried out by qualified service personnel. The interval depends on the usage conditions:• When a customer uses the set under normal
circumstances, for example in a living room, the recommended interval is three to five years.
• When a customer uses the set in an environment with higher dust, grease, or moisture levels, for example in a kitchen, the recommended interval is one year.
• The maintenance inspection includes the following actions:
1. Perform the “general repair instruction” noted above.2. Clean the power supply and deflection circuitry on the
chassis.3. Clean the picture tube panel and the neck of the picture
tube.
2.3 Warnings
• In order to prevent damage to ICs and transistors, avoid all high voltage flashovers. In order to prevent damage to the picture tube, use the method shown in figure “Discharge picture tube”, to discharge the picture tube. Use a high voltage probe and a multi-meter (position VDC). Discharge until the meter reading is 0 V (after approx. 30 s).
Figure 2-1 Discharge picture tube
• All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD �). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. Available ESD protection equipment: – Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822 310 10671.
– Wristband tester 4822 344 13999. • Be careful during measurements in the high voltage
section. • Never replace modules or other components while the unit
is switched "on". • When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a circuit becoming unstable.
2.4 Notes
2.4.1 General
• Measure the voltages and waveforms with regard to the chassis (= tuner) ground (�), or hot ground (), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).
• Where necessary, measure the waveforms and voltages with (�) and without () aerial signal. Measure the voltages in the power supply section both in normal operation (�) and in stand-by (�). These values are indicated by means of the appropriate symbols.
• The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the
V
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Directions for Use EN 5L03.2L AA 3.
semiconductors in the unit, irrespective of the type indication on these semiconductors.
2.4.2 Schematic Notes
• All resistor values are in ohms and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm).
• Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm).
• All capacitor values are given in micro-farads (µ= x10-6), nano-farads (n= x10-9), or pico-farads (p= x10-12).
• Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).
• An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values.
• The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.
2.4.3 Lead Free Solder
Philips CE is going to produce lead-free sets (PBF) from 1.1.2005 onwards.
Figure 2-2 Lead-free logo
This sign normally has a diameter of 6 mm, but if there is less space on a board also 3 mm is possible. Regardless of this logo (is not always present), one must treat all sets from this date onwards according to the following rules
Due to lead-free technology some rules have to be respected by the workshop during a repair:• Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.
• Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able
– To reach at least a solder-tip temperature of 400°C.– To stabilise the adjusted temperature at the solder-tip.– To exchange solder-tips for different applications.
• Adjust your solder tool so that a temperature around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch “off” unused equipment or reduce heat.
• Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If not to avoid, clean carefully the solder-joint from old tin and re-solder with new tin.
• Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies.
• For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.
In case of doubt whether the board is lead-free or not (or with mixed technologies), you can use the following method:• Always use the highest temperature to solder, when using
SAC305 (see also instructions below).• De-solder thoroughly (clean solder joints to avoid mix of
two alloys).Caution: For BGA-ICs, you must use the correct temperature-profile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions)You will find this and more technical information within the "Magazine", chapter "Workshop information".For additional questions please contact your local repair help desk.
2.4.4 Practical Service Precautions
• It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.
• Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
3. Directions for Use
You can download this information from the following websites:http://www.philips.com/supporthttp://www.p4c.philips.com
Pb
http://www.philips.com/supporthttp://www.philips.com/supporthttp://www.atyourservice.ce.philips.comhttp:/www.atyourservice.ce.philips.comhttp:/www.atyourservice.ce.philips.com
Mechanical InstructionsEN 6 L03.2L AA4.
4. Mechanical Instructions
Index of this chapter:4.1 Rear Cover Removal4.2 Service Position Main Panel4.3 Rear Cover Mounting
4.1 Rear Cover Removal
1. Remove all fixation screws of the rear cover. 2. Now pull the rear cover in backward direction to remove it.
4.2 Service Position Main Panel
1. Disconnect the strain relief of the AC power cord.2. Remove the main panel, by pushing the two center clips
outward [1]. At the same time pull the panel away from the CRT [2].
3. If necessary, disconnect the degaussing coil by removing the cable from the (red) connector 1512.
4. Move the panel somewhat to the left and flip it 90 degrees [3], with the components towards the CRT.
Figure 4-1 Service Position
4.3 Rear Cover Mounting
Before you mount the rear cover, perform the following checks:1. Check whether the mains cord is mounted correctly in its
guiding brackets.2. Re-place the strain relief of the AC power cord into the
cabinet.3. Check whether all cables are replaced in their original
position
A
B
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Service Modes, Error Codes, and Fault Finding EN 7L03.2L AA 5.
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter:5.1 Test Points5.2 Service Modes5.3 Problems and Solving Tips5.4 ComPair5.5 Error Codes5.6 The Blinking LED Procedure5.7 Protections5.8 Repair Tips
5.1 Test Points
This chassis is equipped with test points in the service printing. In the schematics test points are identified with a rectangle box around Fxxx or Ixxx. On the PCB, test points are specifically mentioned in the service manual as “half moons” with a dot in the center.
Perform measurements under the following conditions:• Service Default Alignment Mode.• Video: color bar signal.• Audio: 3 kHz left, 1 kHz right.
5.2 Service Modes
Service Default Alignment Mode (SDAM) offers several features for the service technician.
There is also the option of using ComPair, a hardware interface between a computer (see requirements below) and the TV chassis. It offers the ability of structured trouble shooting, test pattern generation, error code reading, software version readout, and software upgrading. Minimum Requirements: a Pentium Processor, Windows 95/98, and a CD-ROM drive (see also paragraph “ComPair”).
Table 5-1 SW Cluster
5.2.1 Service Default Alignment Mode (SDAM)
Purpose• To change option settings.• To create a predefined setting to get the same
measurement results as given in this manual.• To display / clear the error code buffer. • To override SW protections.• To perform alignments.• To start the blinking LED procedure.
Specifications
Table 5-2 SDM default settings
• All picture settings at 50 % (brightness, color contrast, hue).
• Bass, treble and balance at 50 %; volume at 25 %. • All service-unfriendly modes (if present) are disabled, like:
– (Sleep) timer, – Child/parental lock, – Blue mute, – Hotel/hospitality mode– Auto switch-off (when no “IDENT” video signal is
received for 15 minutes),– Skip / blank of non-favorite presets / channels,– Auto store of personal presets,– Auto user menu time-out.
• Operation hours counter.• Software version.• Option settings.• Error buffer reading and erasing.• Software alignments.
How to enter SDAMUse one of the following methods:• Use a standard customer RC-transmitter and key in the
code 062596 directly followed by the “M” (menu) button or• Short jumper wires 9257 and pin 4 of 7200 on the mono
carrier (see Fig. 8-1) and apply AC power. Then press the power button (remove the short after start-up).Caution: Entering SDAM by shortening wires 9257 and pin 4 of 7200 will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could lead to damaging the set.
• Or via ComPair. After entering SDAM, the following screen is visible, with S at the upper right side for recognition.
Figure 5-1 SDAM menu
• LLLL. This is the operation hours counter. It counts the normal operation hours, not the standby hours.
• AAABCD-X.Y. This is the software identification of the main micro controller: – A = the project name (L03).– B = the region: E= Europe, A= Asia Pacific, U= NAFTA,
L= LATAM.– C = the feature of software diversity: N = stereo non-
DBX, S = stereo dBx, M = mono, D = DVD – D = the language cluster number:– X = the main software version number.– Y = the sub software version number.
• S. Indication of the actual mode. S= SDAM= Service Default Alignment mode.
• Error buffers. Five errors possible.• Option bytes. Seven codes possible.
SW Cluster
Software name UOC type
UOC Diversity
Special Features
L3SUM1 L03UM1 x.y TDA9377 55K ROM Size
Mono
L3SUN1 L03UN1 x.y TDA9377 55K ROM Size
Stereo (non DBX)
Abbreviations in Software name: U = Nafta, M = Mono, N = Stereo.
Region Freq. (MHz)Default system
Europe, AP-PAL/Multi 475.25 PAL B/G
NAFTA, AP-NTSC, LATAM 61.25 (ch. 3) NTSC M
� � � � � � � � � � � � �
� � � � � � � � � � � �
� � � � � � � � � � � � � � � � � � � � �
� � � � � � � � �
� � � � �
�� � �
� � � � �
� � � � � � �
� � � � � �
� � � � �
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Service Modes, Error Codes, and Fault FindingEN 8 L03.2L AA5.
• Clear. Erase the contents of the error buffer. Select the CLEAR menu item and press the CURSOR RIGHT key. The content of the error buffer is cleared.
• Options. To set the Option Bytes. See chapter 8.3.1 for a detailed description.
• AKB. Disable (0) or enable (1) the “black current loop” (AKB = Auto Kine Bias).
• Tuner. To align the Tuner. See chapter 8.3.2 for a detailed description.
• White Tone. To align the White Tone. See chapter 8.3.3 for a detailed description.
• Geometry. To align the set geometry. See chapter 8.3.4 for a detailed description.
• Audio. Use default value (Stereo set only), align when necessary. See chapter 8.3.x for a detailed description.
How to navigate• In SDAM, select menu items with the CURSOR UP/DOWN
key on the remote control transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the CURSOR UP/DOWN key to display the next / previous menu items.
• With the CURSOR LEFT/RIGHT keys, it is possible to:– Activate the selected menu item.– Change the value of the selected menu item.– Activate the selected submenu.
• When you press the MENU button twice, the set will switch to the normal user menus (with the SDAM mode still active in the background). To return to the SDAM menu press the OSD / STATUS button.
• When you press the MENU key in a submenu, you will return to the previous menu.
How to store settingsTo store settings, leave the SDAM mode with the Standby button on the remote.
How to exitSwitch the set to STANDBY by pressing the power button on the remote control (if you switch the set 'off' by removing the AC power, the set will return in SDAM when AC power is re-applied). The error buffer is not cleared.
5.3 Problems and Solving Tips
5.3.1 Picture Problems
Note: Below described problems are all related to the TV settings. The procedures to change the value (or status) of the different settings are described.
No colors / noise in picture1. Press the MENU button on the remote control.2. Select the INSTALLATION sub menu.3. Select and change the SYSTEM setting until picture and
sound are correct.4. Select the STORE menu item.
Colors not correct / unstable picture1. Press the MENU button on the remote control.2. Select the INSTALLATION sub menu.3. Select and change the SYSTEM setting until picture and
sound are correct.4. Select the STORE menu item.
Picture too dark or too brightIncrease / decrease the BRIGHTNESS and / or the CONTRAST value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. • The picture improves after you have switched on the
Customer Service ModeThe new “Personal” preference value is automatically stored.
White line around picture elements and textDecrease the SHARPNESS value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. The new “Personal” preference value is automatically stored.
Snowy picture• No or bad antenna signal. Connect a proper antenna
signal.• Antenna not connected. Connect the antenna.• No channel / pre-set is stored at this program number. Go
to the INSTALL menu and store a proper channel at this program number.
• The tuner is faulty (in this case the CODES line will contain error number 10). Check the tuner and replace / repair if necessary.
Snowy picture and/or unstable picture• A scrambled or decoded signal is received.
Black and white pictureIncrease the COLOR value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. The new “Personal” preference value is automatically stored.
Menu text not sharp enoughDecrease the CONTRAST value when:The picture improves after you have pressed the “Smart Picture” button on the remote control. The new “Personal” preference value is automatically stored.
5.3.2 Sound Problems
No sound or sound too loud (after channel change / switching on)Increase / decrease the VOLUME level. Press the Smart Sound button repeatedly to access 4 different types of sound settings and choose your desired setting.
5.4 ComPair
5.4.1 Introduction
ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages:• ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you systematically through the repair procedures.
• ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this.
• ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away.
5.4.2 Specifications
ComPair consists of a Windows based faultfinding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial or RS232 cable. In this chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service
Service Modes, Error Codes, and Fault Finding EN 9L03.2L AA 5.
connector (located on the Main panel, (see figure "Top view Mono Carrier" in chapter 8 "Alignments"). The ComPair faultfinding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways:• Automatic (by communication with the television):
ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C level. ComPair can access the I2C bus of the television. ComPair can send and receive I2C commands to the micro controller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C busses of the TV-set.
• Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extent. When this is not the case, ComPair will guide you through the faultfinding tree by asking you questions (e.g. Does the screen give a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the faultfinding process.
By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way. Besides fault finding, ComPair provides some additional features like:• Up- or downloading of pre-sets.• Managing of pre-set lists.• Emulation of the Dealer Service Tool (DST).• If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of the set are available by clicking on the appropriate hyperlink. Example: Measure the DC-voltage on capacitor C2568 (Schematic/Panel) at the Mono-carrier. – Click on the 'Panel' hyperlink to automatically show the
PWB with a highlighted capacitor C2568. – Click on the 'Schematic' hyperlink to automatically
show the position of the highlighted capacitor.
5.4.3 How to Connect ComPair
1. First, install the ComPair Browser software (see the Quick Reference Card for installation instructions).
2. Connect the RS232 interface cable between a free serial (COM) port of your PC and the PC connector (marked with “PC”) of the ComPair interface.
3. Connect the AC power adapter to the supply connector (marked with “POWER 9V DC”) on the ComPair interface.
4. Switch the ComPair interface OFF.5. Switch the television set OFF (remove the AC power).6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface (marked with “I2C”) and the ComPair connector on the mono carrier (see figure "Top view Mono Carrier" in chapter 8 "Alignments").
7. Plug the AC power adapter in the AC power outlet and switch on the interface. The green and red LEDs light up together. The red LED extinguishes after approx. 1 second while the green LED remains lit.
8. Start the ComPair program and read the “introduction” chapter.
Figure 5-2 ComPair connection
5.4.4 How to Order
ComPair order codes (EU/AP/LATAM):• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.• ComPair interface (excl. transformer): 4822 727 21631.• Starter kit ComPair32 software (registration version): 3122
785 60040.• Starter kit SearchMan32 software: 3122 785 60050.• ComPair32 CD (update): 3122 785 60070 (year 2002),
3122 785 60110 (year 2003 onwards).• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003), 3122 785 60130 (year 2004).• ComPair firmware upgrade IC: 3122 785 90510.• Transformer (non-UK): 4822 727 21632.• Transformer UK: 4822 727 21633.• ComPair interface cable: 3122 785 90004.• ComPair interface extension cable: 3139 131 03791.
5.4.5 Error Buffer
The error code buffer contains all detected errors since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is written at the left side and all other errors shift one position to the right.
5.4.6 How To Read the Error Buffer
You can read the error buffer in 3 ways:• On screen via the SDAM (only if you have a picture).
Examples:– ERROR: 0 0 0 0 0: No errors detected– ERROR: 6 0 0 0 0: Error code 6 is the last and only
detected error– ERROR: 9 6 0 0 0: Error code 6 was first detected and
error code 9 is the last detected (newest) error• Via the blinking LED procedure (when you have no
picture). See next paragraph.• Via ComPair.
5.4.7 How to Clear the Error Buffer
The error code buffer is cleared in the following cases:• By activation of the CLEAR command in the SDAM menu:• If the content of the error buffer has not changed for 50
hours, it resets automatically.
Note:When leaving SDAM by disconnecting the set from AC power, the error buffer is not reset.
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TOI2C SERVICECONNECTOR
Service Modes, Error Codes, and Fault FindingEN 10 L03.2L AA5.
5.5 Error Codes
In case of non-intermittent faults, clear the error buffer before you begin the repair. These to ensure that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error code and not the actual cause (e.g., a fault in the protection detection circuitry can also lead to a protection).
Table 5-3 Error Code Table
5.6 The Blinking LED Procedure
Via this procedure, you can make the contents of the error buffer visible via the front LED. This is especially useful when there is no picture. When the SDAM is entered, the LED will blink the contents of the error-buffer. • n short blinks (n = 1 - 14),• When all the error-codes are displayed, the sequence
finishes with a LED blink of 3 s,• The sequence starts again.
Example of error buffer: 12 9 6 0 0 After entering SDAM: • 12 short blinks followed by a pause of 3 s,• 9 short blinks followed by a pause of 3 s,• 6 short blinks followed by a pause of 3 s,• 1 long blink of 3 s to finish the sequence,• the sequence starts again.
5.7 Protections
If a fault situation is detected an error code will be generated and if necessary the set will be put in the protection mode. Blinking of the red LED at a frequency of 3 Hz indicates the protection mode. In some error cases, the microprocessor does not put the set in the protection mode. The error codes of the error buffer can be read via the service menu (SDAM), the blinking LED procedure or via ComPair. To get a quick diagnosis the chassis has one service modes implemented:• The Service Default Alignment Mode (SDAM). Start-up of
the set in a predefined way and adjustment of the set via a menu and with the help of test patterns.
5.8 Repair Tips
Below some failure symptoms are given, followed by a repair tip.• Set is dead and makes hiccupping sound. “Main
Supply” is available. Hiccupping stops when de-soldering L5563, meaning that problem is in the “Main Supply” line. No output voltages at LOT, no horizontal deflection. Reason: line transistor 7421 is defective.
• Set is dead, and makes no sound. Check power supply IC 7520. Result: voltage at pins 2, 6, 7, 9 and 11 are about 180 V and pin 14 is 0 V. The reason why the voltage on these pins is so high is because the output driver (pin 11) has an open load. That is why MOSFET 7521 is not able to switch. Reason: feedback resistor 3523 is defective. Caution: be careful measuring on the gate of 7521; circuitry is very high ohmic and can easily be damaged!
• Set is in hiccup mode and shuts down after 8 s. Blinking LED (set in SDM mode) indicates error 5. As it is unlikely that the “POR” and “+8V protection” happen at the same time, measure the “+8V”. If this voltage is missing, check transistor 7491 and 7496.
• Set is non-stop in hiccup mode. Set is in over current mode; check the secondary sensing (opto coupler 7515) and the “Main Supply” voltage. Signal “Stdby_con” must be logic low under normal operation conditions and goes to high (3.3 V) under standby and fault conditions.
• Set turns on, but without picture and sound. The screen shows snow, but OSD and other menus are okay. Blinking LED procedure indicates error 11, so problem is expected in the tuner (pos. 1000). Check presence of supply voltages. As “Vlotaux+5V” at pin 5 and 7 are okay, “VT_supply” at pin 9 is missing. Conclusion: resistor 3449 and 3450 are defective
ERROR Device Error description Check item Diagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) 7421, 2423, 6421, 6422 A2
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection 7461, 7462, 7463, 7464, 7465, 7466 A2
4 TDA9853H Tone control & Audio processor I2Cidentification error
7861 (Stereo/Sap) A5
5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493, 7496 A4, A1
6 I2C bus General I2C bus error 7200, 3604, 3605 A4
7 Not applicable - - -
8 Not applicable E/W Protection (Large Screen) - -
9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A4
10 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection 3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, 7314, 7315, 7316, 7317, 7318, CRT
B1
12 Not applicable MAP I2C identification error (USA) - -
13 Not applicable VC I2C identification error (Eu) - -
14 Not applicable DVD I2C identification error - -
Block Diagrams, Testpoint Overviews, and Waveforms EN 11L03.2L AA 6.
6. Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram
POWER SUPPLY
1512
43
2
1
2
7
10
11
3
6
2 5
6
1
E_14560_017.eps240304
P1
P4P6
A5
A4
151190VAC-130VAClow range
3543
5562
3544
A1
DegaussingCoil
1515
5520
7580
7520TEA1506
7200-DTDA93XX
DRAIN
DRIVER
SENSE
DEMAG
CONTROLIC
CTRL
Vcc
ENERGIZINGCIRCUIT(optional)
6501
6503
6500
6502
5502
8
1
2
4
3
1500
T4E
25046562
6561MAIN SUPPLY
-12V
5563
5560 6560P3
P2
Vaudio
3549
A4
A2
Std_Con
HOT GROUND COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541
+3V3A
STANDBYCIRCUIT
7515TCET1103
3527
3525
3523
3526
752114
11
9
35227
D
SG
P5
6520
3528
7523
FRONT I/OA7
V
L
AUDIO PROCESSING (BTSC STEREO DECODER)A5MONO
V
L
R
STEREO
A8A6
A7
AUDIO AMPLIFIERA6
A4
7901 AN7522N (STEREO)7902 AN7523N (MONO)
6 2
5
1
L+
L8
9VOLUME
1
1900
A94 L-
A1010 R-
A1112 R+
R
4
5
1
2
FILAMENT
A8
FRAME
LINE
L1_IN
7861TDA9853H
R1_IN
INPUTSELECT
SY_CVBS_IN
SY_CVBS_IN
L1_IN
R1_IN
1
18 Main_OutR
Main_OutL
Main_OutR
Main_OutL8
26
438 3865
3866BTSC STEREO
+DECODER
ERR4
18
7451
EHT
MAINSUPPLY
DEFLECTIONA2SYNC.A4
A1
D7
D4
D1
D8
D9
A2
A1
D2
V2
D5
-12V
7421BUT11APX5421
D33424
02211
4
HOR.DEFL.COIL
14021
2VERT.DEFL.COIL
5441
1
V
H
7
2
36
FOCUS VG2
EHT
10 EHT
A4EHT 0
A4
A4
A3
A6A2
BEAM-LIMIT
3447
9
33
22
34
21
20
64468
5
4
6463
3445
3446
3475
VT SUPPLY
6447+160VD
+160VD
-12V
FILAMENT
FILAMENT
3448
3459
6452
6451
D10
6444
64483443
3444
FRAME OUT
6422
2423
2406
5401 3402
3403
7423
7422
3425Vaudio
FILAMENT
A2EHT0
H-DRIVE
Hflybk
H-DRIVE2nd LOOPH-SHIFT
V-DRVE+
GEOMETRY
VIDEOINTERNAL
EW+
GEOMETRY
H/V SYNCSEPERATOR
H-OSC+PLL
3463
3465
2490 3464
7463
74617465
7462
-12V
V-DRIVE -
V-DRIVE +
3470
7466
7464
3474
3451
2455
HEADPHONEA7
L+
L-
R-
R+
L+
L-
R-
R+
V7
V8
5602
364236433605
3604
56035601
A3A5
FRONT CONTROLA7 CONTROLA4 +3.3V
WP
36013602
+3V3
+3.3V
F1
57
162112MHz58
1
KEYBOARDLOCAL
KEYBOARD
CHANNEL + / -VOLUME + / -
7200-BTDA93XX
VSTPWM-DAC
ROMRAM
CPU
IICBUS
I/OPORTS
11 7
3
2
8
6
5
54 61 56
IR 62
8
7641M24C04
EEPROM(NVM)
SDA
SCL
A11 Std_Con
A64 VOLUME
SDA
SCL
9625SDAM
1/10PAGES
MEMORY
TELETEXT/CC
+OSD
CVBS SYNC
ERR9
6692TSOP1836
IR
SPEAKER 2 X 5W 16 Ohm 2 X 3W 8 Ohm 2 X 1W 8 Ohm
CRTB1
13001
2
3
5
6
7
8
3305
3309
3301
V12
V13
V14
V16
V15
V17
4
R
G
B
R
G
B CRT(9P)
25kV
FOCUS
EHT
VG2 FOCUS EHT
VG2
7
9
3
4 5 6 8
730873137314
R
731273177318
B
731073157316
G
0165AQUADAG
6318
3318
+170V0
3313
+170V0
A5A7
5201
IF, VIDEO PROCESSINGA4
VIF_1
VIF_2
TUNER_AGC
(MONO)
+8V
+8VD
23
38
7202
3203
3205
7201
44
24
27
L1_IN
35
AUDIO CARRIERFILTER
7200-ATDA93XX
VIDEOIF
AGC
VIDEOPLL
DEMOD.
VIDEOAMPLIFIER
SOUNDFM-DEMOD.DE-EMPH.
AUDIOSWITCH
SOUNDAMPL.+ AVL
V9
AM_FM_MONO
4012014.5MHz
43N.C.
N.C.
42
7200-CTDA93XX
I/OSWITCHING
Y-DELAY
R-Y
B-Y
U
V
R
G
B
RED
GREEN
BLUE
51
52
53
49
Y
VIDEOFILTERS
RGBMATRIX
RGBINSERT
BLACKSTRETCH
WHITESTRETCH
RGBCONTROL
OSD/TEXT/CCINSERT
BLUESTRETCH
WHITE-P.ADJ
VIDEOIDENT
1622
PAL/NTSCDECODER
BASEBANDDELAY
3620
3619
3621
R_SC1_IN_V_ING_SC1_IN_Y_INB_SC1_IN_U_IN
FBL_SC1_IN
4746 48 45 50
V10
V11
1
2
3
1400 1
2
3
4
5
OSD
A2BEAM-LIMIT
A2FRAME_OUT
BLK_IN
FILAMENT
T1
V1
1003
SDA
SCL
ComPairCONN.
TV TUNER
SDA
SCL
6001BZX79-C33
TUNER IFA3
A4
A4
A2
1000UV13366, 7 9
1
2
1
+5V
VT_SUPPLY_AVT_SUPPLY
VT
AGC5 4
IF
2
3
11
1001
ERR10
POWER (USA only)
SDA
SCL
A3A1
A2
+5V3901
Vaudio
2904
2906
3911
6909
3003 3004
3624
3319
3423
6423
2428
3410
2460
6462
6461
2465
3503
3506
t
3581
6522
2521
RESERVED
EN 12L03.2L AA 6.Block Diagrams, Testpoint Overviews, and Waveforms
I2C and Supply Voltage Overview
POWER SUPPLY
1512
43
2
1
2
7
10
11
3
6
2 5
6
1
151190VAC-130VAClow range
3543
5562
3544
A1
DegaussingCoil
1515
5520
7580
7520TEA1506
DRAINDRIVER
SENSE
DEMAG
CONTROLIC
CTRL
Vcc
ENERGIZINGCIRCUIT(optional)
6501
6503
6500
6502
5502
8
1
2
4
3
1500
T4E
25046562
6561
-12V -12V
5563
5560 6560 Vaudio
3549
A4
A2
Std_Con
HOT GROUND COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541
+3V3A +3V3A
STANDBYCIRCUIT
7515TCET1103
3527
3525
3523
3526
752114
11
9
35227
D
SG
6520
3528
7523
7451
EHT
F_15380_001.eps050405
FRAME
MAINSUPPLYMAINSUPPLY
DEFLECTIONA2
A1
-12V
7421BUT11APX5421
3424
02211
4
HOR.DEFL.COIL
14021
2VERT.DEFL.COIL
5441
1
7
2
FOCUS VG2
EHT
10 EHT
A4EHT 0
A4
A4
A3
A6
BEAM-LIMIT
3447
9
64468
5
4
6463
3445
3446
3475
VT SUPPLY
VT SUPPLY6447
+160VD
+160VD
-12V -12V
FILAMENT
FILAMENT
FILAMENT
3448
3313
3459
6452
6001-/C33
6451
6444
64483443
3444
FRAME OUT
6422
2423
2406
5401 3402
3403
7423
7422
3425Vaudio
FILAMENT
3463
3465
3464
7463
74617465
7462
-12V
3470
7466
7464
3474
3451
2455
FOCUS
EHT
VG2
1400
2
3
3423
6423
2428
3410
2460
6462
6461
2465
3503
3506
t
3581
6522
2521
RESERVED
H-DRIVE
V-DRIVE-
V-DRIVE+
TUNER IFA3+ 5 V+ 5 V
+ 8V
1300
7
8
VT supplyVT supply
VT Supply-A
CRTB1
EHT
FOCUS
FILAMENT
170 V0
To VIDEOOUTPUTS
VG2
AUDIO PROCESSINGA55861
41 - 7861
+ 5V
AUDIO AMPLIFIERA61 - 7901or1 - 7902
+ 5V
FILAMENTFILAMENT
+ 3V3A
AUDIO FRONT I/OA7
+3V3A
Vaudio
1x
1x
3x
2x
VIDEO PROCESSINGB1A4Vaudio
FILA-MENT
4379
3493
74933494
3
A1
A2
In
1
3495
5482
4491
+3V3
+5V
+8V 1x
+8VD
+3V3A
6491
7494
6492
3496
3497
7496
7491
3492
3491VTSupply-A
+8V
2x
1x
1x
Vaudio
VIDEO PROCESSINGA4 TUNER IFA3
3605
7641M24C16 EEPROM
(NVM)
3604
3643
3642
65
3
2
11 WP 7
ERR9
7200-B
SETPROCESSOR
PART OFVIDEO-
PROCESSORTDA93XX
ERR6
SDA
SCL
SCL
SDA
3602
+3.3V
3644
+3.3V
3601
+3.3V
1000TUNERUV1336
3003
3004
45
ERR10
1
2
1003
3
AUDIO BTSC STEREODECODER(economic)
A5
7861TDA9853H
AUDIOPROC.
3865
3866
4038
ERR4
SCL
SDA
FORCOMPAIR
ONLY
I2C BUS INTERCONNECTION DIAGRAM
ERROR CODE LIST
Error Device Error description Check item Diagram0 Not applicable No Error - -1 Not applicable X-Ray Protection (USA) 7421, 2423, 6421, 6422 A22 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection7461, 7462, 7463, 7464, 7465, 7466 A2
4 TDA9853HTone control & Audio processor I2C identification error 7861 (Stereo/Sap) A5
5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493, 7496 A4, A16 I2C bus General I2C bus error 7200, 3604, 3605 A47 Not applicable - - -8 Not applicable E/W Protection (Large Screen) - -9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A410 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection
3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, 7314, 7315, 7316, 7317, 7318, CRT B1
12 Not applicable MAP I2C identification error (USA) - -13 Not applicable VC I2C identification error (Eu) - -14 Not applicable DVD I2C identification error - -
1x
2x
Block Diagrams, Testpoint Overviews, and Waveforms EN 13L03.2L AA 6.
Testpoint Overview Mono Carrier and CRT Panel
3
45
6
7
8
8 910
11
1302
1300 CRT
Sock
et
V17
V15
V16
V14
V13
V12
23 1
CRT TRACK SIDE VIEWMONO CARRIER TRACK SIDE VIEW
T1
200mV / div AC20µs / div.
V15
50V / div DC20µs / div.
V16
50V / div DC20µs / div.
V17
50V / div DC20µs / div.
D3
100V / div DC20µs/div.
D2
5V / div AC20µs / div.
D10
2V / div DC20µs / div.
D9
10V / div DC20µs / div.
D8
50V / div DC20µs / div.
D7
20V / div DC5ms / div.
P1
50V / div DC5µs / div.
V9
1V / div DC20µs / div.
V10
1V / div DC20µs / div.
V11
1V / div DC20µs / div.
V12
1V / div DC20µs / div.
V13
1V / div DC20µs / div.
V14
1V / div DC20µs / div.
V7
0.5V / div DC20µs / div.
V8
0,5V / div DC20µs / div.
F1
1V / div AC2ms / div.
D4
0.5V / div DC5ms / div.
D5
0.5V / div DC5ms / div.
V2
D6
1V / div AC5ms / div.
P6
2V / div DC5µs / div.
A4
0.5V / div DC1ms / div.
A5
0.5V / div DC1ms / div.
P5
100V / div DC5µs / div.
P2 97V DCP3 13V5 DCP4 17V8 DC
E_14560_019.eps180304
D1 97V DC
2
2
1 6
7
321
133
1
12
18
23
34
21
22
3264
11
1
1
1000
11
3
8
9
10
D1
P4P6
P1
P2
D9
D8
T1
D6
D2
D3
LOT5441
75207521
5520
6461
6447
P3
A4
A5
6560
6561
D
S
G
7421
1000
E
BC
7464EB
C
5
1234
D10
3
1 F1
D5
D4
36023601
V7
V8
3643
7200
1622
3642
V2
V11
V10
V9
6692
7861
D7
7463
E B C
TUNER
VIDEOPROC.
AUDIOPROC.
HOT
COLD
0,5V / div DC20µs / div.
EN 14L03.2L AA 7.Circuit Diagrams and PWB Layouts
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
+t
V
START-UP
CURRENT SOURCE
VALLEY
START-UP
CURRENT SOURCE
CURRENTSENSING
OUTPUTDRIVER
OVERPOWER
LOGIC
CONTROL
CIRCUIT
MAXIMUMON-TIME
PROTECTION
VOLTAGECONTRLLEDOSCILLATOR
OVERTEMPERATUREPROTECTIOM
POWER-ONRESET
SUPPLYMANAGEMENT
FREQUENCY Demag
Driver
PROTECTION
CONTROL
INPUTCONTROLCIRCUIT
BURSTDETECTOR
Drain
Sense
Vcc
Gnd
Ctrl
t
COLD GROUND
RES
10R
- P
TC
*
3M3
112V6
RES
0V0
6 7 8 9 10 11
A
B
C
D
E
F
G
A
B
C
D
E
F
G
1500 B21501 B31511 C11512 B1
56R
8V1
BY
V95
A
0V0
*
*
4V6
"$"
82n
DEGAUSSING COIL
1V2
"$"
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5
MAINS
7V4
RE
S
HOT
*
FOR MAINS 120V AC 170V (177V)
G
For Relay Cct.
1515 A71520 D11521 D92452 F112453 F102500 C32501 B52502 B52504 B62505 B22507 B62515 C72520 G22521 E22522 D62523 E62524 E52525 F52526 E22527 F1
1n5
RES
12V6
*
0V0
5V2
0V0
2528 G62540 F92541 G92542 G72543 F62560 D82561 D92562 D92564 D102580 B72584 C63452 F113453 F103454 F93456 F113500 C23501 D23502 C43503 B43505 C3
LOW RANGE
RES
90VAC-130VAC
130V0
HOT GROUND
RES
16V2
3V3
*
..V.. Normal Operation in " SERVICE MODE "
STP5NK50ZFP
T4E.250V
3506 D43507 D23508 B43509 D33510 D33519 F63520 G23521 F23522 E53523 E53524 E53525 E53526 E63527 D53528 F1
6V3
S
*
330K
BZ
X79
-C9V
1
3541 F83542 E93543 E103544 F93545 G83547 F103548 F93549 E93580 A73581 F63582 D104501 E55502 C45509 E85520 C75521 D65560 D85562 C95563 D106500 B56501 B66502 B5
*
(..V..) Standy Mode
330K
6503 B66505 D26520 E26522 F66540 F86541 E96560 D86561 D96562 C96580 A87451 F107515 F77520 D27521 E6
7523 F17540 F97541 G87580 A79502 C49503 A69505 D29509 D8
5521
1501PFC5000
5520
*
D
3M3
0R15
*
8V0
COLD
9V1
114V3
3V8
POWER SUPPLY
*
*
14RF
1N5SS28032-02A
RGP15DRGP15D
13V/19V
2523
-12V4
0V0
-12V0
9V1
8V8
16V5
4V7
220V AC 309V (317V)
A2
BYV95A
RE
S
Item
2515
*
*
*
6502
1N5062 (COL)
330K
3522
47u
2580
AudioSupplyGndAudioSupplyGnd_A
EHT
AudioSupplyGnd_A
L_GND
*
SS28011-04
A4
2N2
56p
TEA1506
4V7
3V3
6V9
*
820K
1N8 1N52562552065206522
BYV95ABYV95A
P4
220R
3509
7451
BC857B
3500
1520
4
3 2
1N5062 (COL)
6500
23
14
2564
P1
1K0
3525
47u
9502
3454
10K
6541
5509
BC847B
7580
3508
1M5
3506 SB340
6560
2453
4n7
6503
1N5062 (COL)
6522
7
8
1
10
112
3
5
6
G5P
1515
1
2
5562
1512
2541
10n
2524
3503
2507
5560
2543
1n0
2562
2n2
82K
3543
1K5
3542
15K
3548
2525
470p
220n
2500
7521
33K3507
1K2
3520
2527
2n2
P2
P6
2501
3547
2526
1n0
100K
3453
7540BC547B
2528
22u
50V
2520
10n
BC857B7523
3452
3456
47K
2584
220p
470p
2522
5563
27u
7520
10
11
142
3
6
7
8
9
P3
9509
6520
3505
3521
3523
2m2
16V
4501
2561
PFC50001500
6540
BZ
X79
-B6V
8
3544
6K8
7515TCET1103(G)
1
10K
3528
6501
1N5062 (COL)
6561
6580
1N41
48
BYW76
6562
47K
3580
5502
C914 31
46
2K2
3545
3526
9505
1
2
470R
3541
1511
3582
2521 2
2u
3581
7541
PDTC114ET
DSP
3510350
1
3549
220R
AudioSupplyGnd_A
3502
3519
3K3
2452
2560
2n2
2540
15n
2K2
1n8
2523
3527
9503
3524
2n2
2505
470n
2542
400V
1521
2504
150u
P5
2n2
2502
6505
BZX384-C22
-12V
Std_Con
MainSupply
+3V3A
Vaudio
3139 123 5802.1E_14560_003.eps
150304
P1
50V / div DC5µs / div.
P6
2V / div DC5µs / div.
P5
100V / div DC5µs / div.
P2 97V DCP3 13V5 DCP4 17V8 DC
Circuit Diagrams and PWB Layouts EN 15L03.2L AA 7.
Mono Carrier: Deflection
VG2
EHT
FOCUS
6422
BY
D33
M
2447
10u
D5
9 10 11
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
1400 E101401 C41402 G61463 E81464 E112405 D32406 D42408 D52420 B22421 B32423 A4
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8
1n2462
2424 A42426 B22427 B12428 D22429 B22441 C92444 E82446 E82447 E82455 D92457 E72460 E62461 F22462 F32463 F32464 F32465 F52470 F52471 B12473 C73402 D53403 D43410 C93422 A33423 C23424 B13425 C13426 B33428 B33430 C23432 C23439 D83440 D83441 C83442 D83443 D73444 D73445 D73446 E63447 C83448 D83449 C83450 C93451 C93455 C93457 C83459 D83460 D93461 F13462 G23463 F23464 G33465 G23466 G33468 E43470 F4
1K
3466
3471 F53472 G53473 H53474 H53475 F63476 F63478 G55401 E55402 E45421 C35441 B56422 A46423 C16426 B26444 D76445 C76446 D76447 D76448 D76451 C96452 D96453 D86460 F36461 F66462 E56463 E66464 F47421 B37422 B27423 C27440 C87461 F27462 F37463 G4
7464 E47465 G57466 F49402 E4
TO 1300OF CRT PANEL
** *
** *
*
*
*
**
*
*
*
*
*
*
*
3478
D4
2470
15n
3410
68K
2K2
3464
3R3
3474
DEFLECTION
*
Item
VERTICAL
0V9
0V0
46V4
TO CRT PANEL
RES
23V8
A2
COIL
137V0
3V4
COIL
-7V0
HORIZONTAL
140V0
0V0
DEFLECTION
-11V9
3V5
A4
RE
S
RE
S
-12V0
A4
1V4
0V0
-12V5
6V0
120K
0V8
0V0
-0V5
Frame Deflection
0V3
120K
LOT
A2
TO PICTURE TUBE
0V0
A4
-12V5
0V0
0V0
A4
5V6
0V0
-12V6
33K
10K150K
DEFLECTION
3R9
Line Deflection
A4
A1
100K680R470R
100K
4R71R
680R
360NNO12N680P
15N22N47U2K2
470R
100KJF0501-19255
470P
A4
560N13N
33N100NNO
A4
A4
22N
150K
3R93R91R
150K8K22K2
47KJF0501-19276
4R74R7NO
2473
470p
470u
2446
344734513455
34605441
3R33R3NO
560N15N15N
1N
2K233K
47K
22NNONO36K
47K100K
4R73R93R9220K
19V 13V 14RF
JF0501-19255
3R33R3
347334742406240824232424
24412452249434023440
34413442
344334443445
2455
10u
16V6
445
BA
S31
6
1n2461
5421
PSD10-204B
1
3
5
6
RGP10D
6447
BC817-257422
1401VH
1
4
11425441
1
10
2
3
4
5
6
7
8
9
3403
1K
BC807-25
7423
BF4237440
470p
2464
470p
24572R
2
3470
3455
2K2
RGP10D
3446
1R
6462
3402
2K2
BC546B
7463
1R
3448
2420
100n
3442
BD135
7464
330R
3468
D8
1R
3423
BUT11APX
7421
3471
220R
D6
7465BD136
BZ
X79
-C33
6453
DC
12
5402
3457
2M2
3441
7466BC847B
D2
220R
3472
3461
2K2
9402
47R
100K
3460
3426
D9
3450
33K
1463
2463
100u
50V
3462
1M
1R
2426 1n
3444
6452
BAS316
3424
22R
1400 DIPMATE1
2
3
2428
47u
BC857B7461
33n2441
33u
5401
2405
47u
2423
10n
2460
56n
D7
D3
1464
D1
BA
S31
6
6426
7462
BC857B
33K
3449
2429
220n
BA
S31
6
6460
3465
1K
2444
470u
D10
2
160V
10u2
465
VH
1402
1
100K
3447
6444
EGP20DL
3473
3R3
2408
12n
1R0
3440
33K
RGP10D
6446
1K3432
6461
RGP10D
BAS316
6451
2427
100n
8K2
3451
330R
3425
6448
2424
820p
3445
10K
1R
3475
3422
330K
3428
68R
2471
6463
100n
2421
2406
470n
RGP10D
2K2
3430
1K0
3463
150K
3459
BAS316
6423
3439
3R3
3476
8K2
6464
BA
S31
6
-12V
160VD
EHTO
FILAMENT
FILAMENT1R
3443
MainSupply
HDRIVE
VDrive-
VDrive+
VTSupply
-12V
Vaudio
-12V
FILAMENT
Hflybk
Frame_FB
MainSupplyGND
EHT
Beam_Limit
Frame_OUT
-12V
3139 123 5802.1E_14560_004.eps
150304
D3
100V / div DC20µs/div.
D2
5V / div AC20µs / div.
D10
2V / div DC20µs / div.
D9
10V / div DC20µs / div.
D8
50V / div DC20µs / div.
D7
20V / div DC5ms / div.
D4
0.5V / div DC5ms / div.
D5
0.5V / div DC5ms / div.
D6
1V / div AC5ms / div.
D1 97V DC
EN 16L03.2L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Tuner IF
GND NC
B
C
D
E
A
B
C
D
E
1000 C51001 D71003 D31004 E62001 C32002 C42003 D42004 D42005 C62006 C32007 C73001 C33002 C33003 D43004 D43005 C35001 D7
4
5
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
A
5002 C55003 C65004 E66001 C7
1004
1
UV1336
3004
100R
BZ
X79
-C33
RE
S
A4
A4
A4 A4
RE
S
A4
TUNER IF
T1
5001
820n
100R
3003
2001
10n
5002
EH-B
10031
2
3 8
4SCL
5SDA
2TU
7
VS
9
VTS
5003
1000
TUNER
1
AGC
3AS
10
11IF
12 13 14 15 6
10V
470u2
006
3005
100R
5004
100u
2002
3002
22K
6001
OFWG1984M1001
1
2
322
p
2003
3001
4K7
2004
22p
2005
220n
10u
2007
+5V
SCL
SDA
VIF_2
VIF_1
TUNER_AGC
VTSupply_A
VTSupply+5V
3139 123 5802.1E_14560_005.eps
150304
T1
200mV / div AC20µs / div.
Circuit Diagrams and PWB Layouts EN 17L03.2L AA 7.
Mono Carrier: Video Processing
H-OSC + PLL
PAL/SEC/NTSC
DECODER
BASE-BAND
DELAY LINE
LUMA DELAY
PEAKING
BLACK STRETCH
AGC CIRCUITNARROW BAND
PLLDEMODULATOR
VIDEO SWITCH
VIDEO IDENT.
VIDEO FILTERS
VISION-IF
ALIGNMT-FREEPLL DEMOD
AGC/AFC
VIDEO AMP
DEEMPHASIS
AUDIO SWITCH
VOL CONTR
CONTR/BRIGHTN
OSD/TXT INSERT
CCC
WHITE-P ADJ
RGB/YUV INSERTRGB/YUV MATRIX
SATURATION
YUV/RGB/MATRIX
CPUI2C-BUS
VST PWM-DAC
I/O PORTS
ROM/RAMTELETEXT
ACQUISITION
1/10 PAGE
MEMORY
TXT/OSD
DISPLAY
EW GEOMETRYV-DRIVE +
GEOMETRY
H-DRIVE
2nd LOOP
H-SHIFT
H/V SYNC SEP.
2G
1I
3O
1201 C21202 E11203 E91621 C41622 E102123 C42201 B22202 B32203 B22204 A42205 C32206 C42207 C22208 C22209 D22210 D22212 E2
1 2 3 4 5 6 7 8
5482
10u
9 10 11
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
7201
BC847B
E
F
G
H
A
B
C
D
E
F
G
H
5602
5u6
2481 G32482 F22483 G22484 G32485 G32486 G32487 G42488 G52489 G52490 G62491 F12492 C92493 B92494 C82495 A102496 G42497 G52498 G22601 C42602 B52603 C52604 B62605 C72606 C72607 C72608 B7
BZX384-C5V6
6492
2612 D82615 F72616 F82641 B112642 C102643 G23201 A33202 B33203 B43204 B23205 C33206 C33207 C33208 D2
18K
3481
3209 D23210 D23211 E13231 G73232 F73479 B83480 G53481 F33483 G43485 G53486 G53487 G63488 G43489 G63490 G43491 B73492 C73493 B83494 B93495 B93496 A103497 A103498 G33499 G33601 A53602 B53603 B53604 C53605 C53606 B53607 B63618 B5
2607
3619 E73620 E83621 E73624 E93634 C83641 B113642 C103643 C113644 B11
3645 D93646 G24491 B94606 B44661 D95201 B25482 F25601 C75602 C75603 C75604 G96481 G36491 B96492 B106624 F96625 D106626 D86627 D86628 D86681 F87200 C37201 B37202 B47491 B77493 B97494 B107496 A87601 D97641 B109200 B49410 G59476 A10
4491
2210
220n
1n0
2497
2605 100n
9V8
Item
3V3
A4
2V7
5V0
NOJUMP
NONO
330P33P3K93K3NO
FIXD 10U100K
3V3
2202
586148653867
4N7820P
STEREOMONO
A2
A4
3V8
2K7
3861
22063201
A7
0V0
2V3
3V8
2V7
A1
0V8
3v4
A3,
A5
0V
3V3
4V2
9V6
1V8
5v0
8V3
2V3
A2
8v2
3V3
To 1300
8V3
A5
1V0
0V
2V6
3V3
3V3 0V
2
4M5
A1
1N
3V4
A2
2v8
9625
3V8
3V3
4V1
3V3
NVM
3V4
8V33V
2
0V
1V3
2v5
2V7 SD
AM
3V4
A7
A5/
A7
3V3
2V4
2V9
2V7
3v9
A3,
A5
5v3
7V0
1V3
VIDEO PROCESSING
3V3
A2
4V0
3V3
0V
3V0
0V2
8V3
0V8
5V0
2V0
10R
3V3
10R
1V6
A3
RES
11V5
1V8
3V33
V3
2v6
0V
A6
6V5
A2
5V6
of CRT PANEL
0V
A3
0V
1V5
3V3
9V0
A2
A3
*
2V4
8v3
0V4
3V9
A2
1V6
A7
0V
2V3
A2
2206
4n7
*
*
V6
9200
2485 1u
BC847B7202
3634
1K0
10K
3489
3495
33R
2207
100n
L78L337493
2
GND
1IN
3OUT
3621
4606
470R
10V 470u
2204
1K0
3624
100n
2488
3606
10K
100n2606
100n
2203
2K2
3602
470R
3619
100n
2208
V3
BC847B
100p
2481
7491
3K3
3490
9
2489
100n
5859 660 6162 63 647 8
48
49
5
50
51
52
53
5455 5657
39
4
40
41
42
43
44
4546 47
3
30
31
32
3334
35
36
37 38 2
202122
23
24
25 26
27 2829 10 11 12
13
14
15
1617
18
19
7200TDA93XX
1
3603
2K2
6681
BA
S31
6
V11
6626
BA
S31
6
2490
4u7
3485
1K0
3201
2K7
1n0
2642
7601PDTA114ET
3492
3K3
3605
100R
16221
2
3
4
5
3207
390R
2482
3607
100R
1u0
10V
470u2
491
3491
56K
3499
27K
2608
1u
1202
1n 2641
1K3206
3231
560R
BAS316
6624
3497
390R
4u7
5201
1203
100R
3210
2602
33p
3488
100R
3645
100R
3604
1K0
V1
V8
470R
3209
25V
220u2
494
3493
V10
2E1
3E2
1NC
6SCL
5SDA
8
VCC
4
VSS7
WC_
7496BD135
M24C047641680R
3494
2205 1
0u
12M
1621
2201
4n7
1K0
3203
2604
10u
16V
V9
39K
3480
3498
10K
2495
470u 10VV5
TPS1201
2487
2n2
4K7
3644
220n
2209
1n0
2496
4661
5u6
5603
4u7
2483
2u2
2498
V2
75R
3204
BAV706491
3208
470R
220p
2643
9476
3643
100R
BA
S31
6
6627
1M3483
6628
BA
S31
6
3496
10R
100n
V7
2486
4n7
2616
10u
16V
BZ
X79
-C8V
2
6625
V4
75R
3211
3232
1K0
2492
22u
25V
2K2
3601
5604 5u6
7494BC337-25
3486
1K0
2612
220u
16V
470n
2601
5u6
5601
2K2
3618
3479
33K
3487
2202
820p
33p
2603
1n0
2615
2493
470u
10V
3202
100R
BA
S31
6
6481
2212
220n
3205
270R
1M0
3646
100R
3641
9410
100R
3642
3620
470R
100n
2484
1u0
2123
VD
rive+
+8V
SCL
SDA
IR
+8V
EH
TO
Beam_Limit
+8V
Hfly
bk
Std
_Con
BLK_IN
VD
rive-
AM
_FM
_MO
NO
+5V+8V
+8VD
GREEN
RED
BLUE
+3V3
Vau
dio
+8V
VO
LUM
E
+3V
3
FIL
AM
EN
T
VT
Sup
ply_
A
SY_CVBS_IN
+8VD
KE
YB
OA
RD
L1_I
N
+5V
+3V
3A
+3V
3
Frame_OUT
VIF_1
VIF_2
TUNER_AGC
HD
RIV
E
SC
L
SD
A
+3V
3
+8V
D
+3V
3
REFO
+8V
3139 123 5802.1E_14560_006.eps
150304
V9
1V / div DC20µs / div.
V10
1V / div DC20µs / div.
V11
1V / div DC20µs / div.
V7
0.5V / div DC20µs / div.
V8
0,5V / div DC20µs / div.
V2
0.5V / div DC5ms / div.
EN 18L03.2L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Audio - BTSC Stereo Decoder
CTRL AMP
L-R
VOLUMELEFTCTRL
FIL
REFAND
TONERIGHTCTRL
TONELEFTCTRL
NC
NC
VOLTAGEDET AND
DEMATRIX+
NC
MODESELECT
TRANSC
INPUTSELECT
STEREO DECODER AUTOMATICRIGHTCTRL
LOGIC
VOLUME
I2C
VOLUME ANDLEVEL CONTROL
L+R
SUPPLY
RES
4V1
4V1
0V0
4V1
1861 B51883 E42861 B42862 C22863 C32864 B52865 B52866 D72867 D72868 D72869 D82870 B82871 B72872 B72873 B72874 D52875 D52876 B62877 D52878 D52879 D42880 D32881 D7
A6
3V3
4V1
4V1
4V1
4V1
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
A
4V1
4V1
6V7
A4
6V6
A6
4V1
4V1
RE
S
0V0
4V1
RE
S
RE
S
B
C
D
E
F
G
A
B
C
D
E
F
G
4V1
4V1
4V1
4V1
2882 D62883 E42884 B42885 B42886 E22891 B23861 D63862 C43863 D33864 D33865 F43866 E43867 B54852 D84861 E84863 B84865 E85861 E45862 F97861 C4
4V1
1V1
4V1
0V
AUDIO - BTSC STEREO DECODER (ECONOMIC)
0V0
RES
4V1
A7
4V1
4V1
4V1
0V0
4V
3V3
4V1
0V0
A7
A1
RE
S
4V1
4V1
8V1
8V2
4V1
0V0
4V1
0V0
0V0
A4
A4
470u
2883
2885
220n
100u
2875
1K2
3863
18831
4n7
2879
A2
A5
4u7
2876
2878
2863
1u
2874
100u
2882 48
52
4861
47n
2870
100n
2886
2871
150p
VIR
24
VR
EF
27
100R
3865
44
OUTL 16
OUTR 18
RF
R
7
SC
L
40
SD
A
38 13
TC
1LT
C1R
21
TC
2L
14
20
TC
2R
TW
30 11
VA
L
23
VA
R
VC
AP
28
VC
C
41
VIL
10
CP
H
42
CS
S
6
31
CW
DG
ND
37
35
FDI
FDO
33
LIL
8
LIR
26
LOL
9
25
LOR
MA
D
39
1 12 17 22 34TDA9853H7861
AG
ND
36 15
BC
LB
CR
19
BP
U
32
CA
V
29
CE
R
43
CM
O
5
COMP
4
CP
1
3
CP
2
2
2867
3n3
10u
5861
4865
2891
100n
150p
2868
2u2
2884
3K3
3867
2873
2u2
47n
2869
10u
2877
4863
2881
CS
B186
1
514K
5
5862
10u
15K
386210
0R
3864
3n3
2872
2u2
2866
2864
2u2
A4
2u2
2862
A3
100K
3861
22n
2880
2u2
2865
3866
100R
SDA
SCL
+8V
Main_OutL
R1_IN
L1_IN
AM_FM_MONOMain_OutR
220n
2861
3139 123 5802.1E_14560_007.eps
150304
A4
0.5V / div DC1ms / div.
A5
0.5V / div DC1ms / div.
Circuit Diagrams and PWB Layouts EN 19L03.2L AA 7.
Mono Carrier: Audio Amplifier + Mono Sound Processing
5PIN
4K7
1V4
NO
1900290429063903390479017902
3PIN1U
2K7
5V1
NO
AN7523
F
G
H
A
B
C
D
E
F
G
H
1900 B102901 A7
470N470N3K310K
AN7522NO
5PIN47N47N3K310K
AN7522NO
1x1W 2x1W
MONO OUTPUT
RES
0V4
RE
S
1 2 3 4 5 6 7 8 9 10 11
3V8
A7
A7
1u
RES
*
RE
S
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
A7
* *
*
*
2x3W
2903 B52904 B42905 B52906 C4
STEREO OUTPUT
0V4
*
Item
A5
11V
4
AmpOutR_Pos
AmpOutL_Pos
3V0
2907 C52908 D32909 E42947 C92948 C92949 C92950 C92951 B52952 C53901 B43902 B53903 B33904 B43905 C33906 C43907 E43909 C3
*
A4
AUDIO_AMPLIFIER + MONO_SOUND_PROCESSING
3911 D34921 A44922 C84923 B34924 B34925 C34927 B94928 C96908 D36909 D37901 B67902 D69865 D89872 D8
5V1
5V1
RES5V1
A7
RES
13V
5
5V1
A7
5V1
A5
1V4
1V4
*
10u
2909
4923
2
CH1+
4
CH1-
6 CH1-IN
12CH2+
10CH2-8 CH2-IN
3
GN
DC
H1
11
GN
DC
H2
7
GN
DIN
P
5
ST
B
1
VC
C
9 VOL
1N41
48
6909
3911
100K
4922
1K
3901
2950
100p
3904
10K
2906
1u
A9
3906
A10
3903
15K
A6
2904
1u
A11
2903
2907 1n
4
5
820p
2952
1900
1
2
3
2947
100p
4928
16V
10u29
08
6 CH1-IN
3
GNDCH1
7
GNDINP NC
8
5
STB
1
VCC
9 VOL
AN7523N7902
2
CH1+
4
CH1-
4924
3902
3K3
4927
2951
820p
680K
3K3
3907
2901
3909
A8
AN7522N7901
2905 1n
4921
6908
BZ
X38
4-C
2V7
2949
100p
9865
9872
3905
15K
4925
100p
2948
FILAMENT
Vaudio
VOLUME
+5V
AmpOutR_Pos
AmpOutR+
AmpOutR_Neg
Main_OutR
AmpOutL_Pos
Main_OutL
AmpOutL_Neg
AmpOutL+
3139 123 5802.1E_14560_008.eps
180204
EN 20L03.2L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Front I/O + Front Control + Headphone
1181
RE
S
*
volume+
D
E
F
G
H
A
B
C
D
E
F
G
H
1100-A B11100-B C11101-A B21101-B C21101-C D21181 B31182 C31183 C31600 C101601 C91602 B91603 B91606 B81901 E51981 F4
31852183
Item
*
NO
A4
SOCKET
47R150R33P
channel-
RE
S
3PIN
Stereo
3186
11002123
1 2 3 4 5 6 7 8 9 10 11
RE
S
A4
A6
channel+
Mono
2PIN1UNONONO
POWER
1 2 3 4 5 6 7 8 9 10 11
A
B
C
*
*
1982 F42181 B32182 C32183 C32185 C32186 C32691 E102981 F22982 F32983 F22984 F33181 B33182 B33183 B33184 C43185 C33186 C4
A6
For Engg Purpose Only
volume-3681 B103682 B103683 B83685 B83686 B93687 B93688 B93689 B73693 D103694 D93981 F33982 F34182 B74694 G74981 E24982 E34983 G24984 G36181 B46692 E99181 C49694 E8
A6
0R
A6
* *
HEADPHONE
FRONT CONTROL
USA
9982 F2
L
A4
FRONT IO + FRONT CONTROL + HEADPHONE
A5
A5,A4
RE
SR
ES
RE
SR
ES
*
FRONT CINCH
MONO SET
HEADPHONE
RE
S
V
R
TS
100u
2983
220R
3693
3685
200R
1
2
3
1901
+3V3A
3683
120R
200R
3688
3181
75R
2185
4981
4694
1101-A
1101-C
1100-B
9694
1100-A
4983
6181
330p
2182
3686
430R
BZ
X79
-C6V
8
4182
2984
470p
3182
100R
1602
2183
330p
2981
100u
9181
1982
3682
1600
2691
100u
22p
2181
1601
3185
150R
1603
120R
3982
2982
470p
2186
1981
1606
VS
3687
2K2
3186
47K
TSOP18366692
2GND
1OUT
3F1
3689
47K
3184
1183
1182
120R
3981
4
5
6
7
8
9
1101-B
3183
150R
4984
3681
1K0
3694
4K7
4982
9982
AmpOutL+
AmpOutR+
IR
L1_IN
R1_IN
KEYBOARD
AmpOutL_Pos
AmpOutR_Pos
SY_CVBS_IN
3139 123 5802.1 E_14560_009.eps150304
F1
1V / div AC2ms / div.
Circuit Diagrams and PWB Layouts EN 21L03.2L AA 7.
Layout Mono Carrier (Top Side)
E_14560_001.eps1902043139 123 5802.1
1000 D41001 C41003 D41004 C41100 A41101 A41201 B41202 C41203 A31400 C31401 D21402 D31463 D31464 C31500 A11501 A11511 A11512 A21515 A21520 A21521 B21600 A31601 A31602 A21603 A21606 A11621 B31622 B41861 A31883 A31900 A41901 A42002 D42006 D42007 D42204 B42205 C42405 C22406 D22408 D22423 D32424 C22428 D32441 D22444 D22446 D32447 C32455 C32457 D22460 C12463 D32465 D32470 D42488 C42491 C32492 B32493 A42494 B32495 A42498 C42500 A12501 A12502 A12504 B12505 A22507 B12515 B22521 C12523 B12528 C12560 A22561 A22562 B22564 B22580 A22584 B12604 A32612 A32616 B42691 A22864 A42865 A42869 A42870 A42874 A32875 A32876 A32877 A32878 A32883 A32884 A32885 A32903 A42908 A42909 A42981 A42983 A43005 C43181 A43182 A43183 A33185 A33204 B43205 B4
3208 B43210 B43402 D23403 D23422 C23423 D33424 D33425 B23426 C23428 D33439 C23442 C33443 D33444 D33445 D23446 C13448 C33449 C33450 C33452 C23459 C33464 D33468 D33470 D33471 D33472 D33473 D33474 D33475 C33478 D43479 B33483 C43485 C43486 C43488 B43491 C43493 A33494 A33495 A43496 B43497 B43498 B43500 A23501 A23502 A13503 A23505 A13506 A13507 B23508 A23509 A13510 A13519 C13521 C13523 B13526 B13527 C13543 C23544 C23549 B23582 B23603 B33604 B33605 B33606 B33618 B33619 B43620 B33621 B33624 B43634 A33641 B33693 A23865 A33866 A33901 A43982 A45001 C45002 D45003 C45004 C45201 B45401 D25402 D25421 D35441 D15482 B45502 A15509 A25520 C25521 B15560 B25562 B25563 C25601 B35602 B35603 B35604 B25861 A35862 A36001 D46181 A46422 D36444 D3
6446 D16447 D26448 D36453 C36461 D16462 D16463 D16500 A16501 A16502 A16503 B16520 C16522 C16540 C26541 C26560 B26561 A26562 B26580 A26625 B36692 A26909 A47200 B47421 C37440 C37463 C37464 D47465 D47493 A37494 B47496 B37515 C17521 B17540 C27641 B37901 A47902 A49001 D49002 C49181 A39200 B49201 B49202 A49203 A49205 B49402 D29403 C49405 C29406 C29407 C39408 C39410 C39411 C39412 C39413 B39421 D29422 C29424 D29441 C29444 D29445 D29446 D39448 C39449 C39450 C39452 C39463 C39465 A39471 D39473 D39475 C39476 B49478 D49479 D49481 B49490 A39492 B39494 A39495 A49496 A49497 A39498 A39499 A39501 A19502 A19503 A29505 B29509 A29515 B29520 C29521 A19523 B19539 C39560 B29561 A29562 A29563 C29564 B29582 B29604 B39605 B39606 B29607 A49608 B2
9612 A39617 B39618 B39624 B39625 B39629 B29641 B39642 B39643 B39681 B49682 A39693 A29694 A29695 A39698 B39862 A39865 A49872 A39883 A39901 A49902 A49903 A49904 A49905 A49906 A39907 A39982 A49983 A3
EN 22L03.2L AA 7.Circuit Diagrams and PWB Layouts
Layout Mono Carrier (Overview Bottom Side)
E_14560_002.eps1902043139 123 5802.1
Part 1E_14560_002a.eps
Part 2E_14560_002b.eps
2001 D12003 D12004 D12005 C12123 B12181 A12182 A22183 A22185 A12186 A22201 B12202 B12203 B12206 B12207 B12208 B12209 B12210 B12212 B22420 D22421 D22426 D32427 D32429 D22452 C32453 C32461 D22462 D22464 C22471 D32473 D32481 B12482 B12483 C12484 B22485 B12486 B12487 B12489 B12490 B12496 B12497 B12520 C42522 C42524 B42525 B42526 C42527 C42540 C32541 C32542 C32543 C42601 B22602 B22603 B22605 B22606 B22607 B22608 B22615 B12641 B22642 B22643 C22861 A22862 A22863 A12866 A12867 A12868 A12871 A12872 A22873 A22879 A22880 A22881 A22882 A22886 A12891 A22901 A12904 A12905 A12906 A12907 A12947 A12948 A12949 A12950 A12951 A12952 A12982 A12984 A13001 D13002 D13003 D13004 D13184 A23186 A23201 B13202 B13203 B13206 B13207 B13209 B13211 B1
3231 B13232 B13410 C23430 D23432 D23440 C33441 C23447 C23451 C23453 C33454 C33455 B33456 C33457 C33460 C23461 D23462 C23463 D23465 C23466 C23476 C23480 B13481 B13487 B13489 B13490 B13492 B23499 B13520 C43522 C43524 B43525 B43528 C43541 C33542 C33545 C33547 C33548 C33580 A33581 C43601 B23602 B23607 B23642 B23643 B23644 B23645 B23646 C13681 A23682 A23683 A33685 A33686 A33687 A33688 A23689 A23694 A33861 A13862 A23863 A23864 A23867 A23902 A13903 A13904 A13905 A13906 A13907 A13909 A13911 A13981 A14182 A34405 C34410 C24411 C24412 C24413 C24414 C24423 C24444 D34447 C34461 A34465 D14490 B24491 A24492 B24494 B14495 B24496 A24498 B24499 B24501 B44606 B14619 B24634 A24640 B24661 B24852 A14861 A14862 A24863 A24865 A14921 A14922 A1
4923 A14924 A14925 A14927 A14928 A14981 A14982 A14983 A14984 A16423 D26426 D36445 D36451 C26452 C26460 D26464 D26481 B16491 A26492 A16505 B36624 B26626 A16627 A16628 A26681 B16908 A17201 B17202 B17422 D27423 D27451 C37461 C27462 C27466 C27491 B27520 C47523 C47541 C37580 A37601 B27861 A2
Circuit Diagrams and PWB Layouts EN 23L03.2L AA 7.
Layout Mono Carrier (Part 1 Bottom Side)
E_14560_002a.eps190204
Part 1
EN 24L03.2L AA 7.Circuit Diagrams and PWB Layouts
Layout Mono Carrier (Part 2 Bottom Side)
E_14560_002b.eps190204
Part 2
Circuit Diagrams and PWB Layouts EN 25L03.2L AA 7.
CRT Panel
R
G
B
Blue
Green
Red
***
Item
109V0
E
F
G
A
B
C
D
E
F
G
VG2 E91300 B11301-1 A71302-A C71303 A71304 A72300 B32301 C42302 D42303 E22304 E12318 E43300 A33301 B53302 A2
Heater
107V6
3V1
TO C
RT
SO
CK
ET
Pin 6
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
Aquadag
Green
Red
RES
FROM MAIN CHASSIS TO LOT
120V0
TO CRT SOCKET
FOCUS
R
7V7
3303 B33304 B43305 C53306 C23307 C33308 C43309 C53310 D23311 D43313 A43318 D43319 E64300 B24301 C24302 D24303 B1
Ground
3V0
G
Heater
9 Pin
168V7
168V8
106V0
B
2V7
RES
CRT
4304 B14305 B14306 B14307 E26301 E36307 E26313 A46316 B46317 C46318 E47307 B37308 B37309 C37310 B37311 D37312 D47313 A47314 B47315 B4
RES
Pin 8
Blue
Red
Pin 5
2V6
RES
7316 C47317 C47318 D5
Pin 7
168V7
Pin 3
418V0
H19
7311
33K
3308
1K5
3319
GND12
3313
68R
GND_CRT
P1
1301-1
1
BF422
7310
1K5
3305
220R
3318
7P7
680p
7V7
109V0
7V7
BAS321
Heater
Heater
VG2
Pin 5
Green Pin 9
6V3
3V0
JUMP
JUMP
NO
123V0
EHT
VG2
CRT
TO 1
622
OF
RES
170V0
Pin 11
3V0
170V0
170V0
3V0
3V0
6V3
6V3
Pin 8
3V0
4305
330R
13v/19v
JUMP
JUMP
NO
Pin 7
2V6
4306
3311
4303
4304
170V0
VG1
3V3
104V0
CRT PANEL
3V2
122V0
12 Pin
GND Pin 1 Pin 1 & 12
VG1
BAS321
Pin 9
AN
D 1
400
OF
Blue
Pin 10Pin 4
170V0
BF422
7312
BAS321
108V0
Pin 6
G3
1302-A
1
G1
4300
3304
33K
P88
G2
10
GND_CRT1
GND_CRT
180p
2302
3
GND_CRT
6CG
220R
3303
6317
4301
3301
1K5
*
NO
20v
390R
JUMP
NO
NO
JUMP
14RF
330R
NO
*
7313BF422
1300
GND_CRT
BF4237316
5
220R
3311
4302
4304
180p
2300
CB
11
GND_CRT
1304
57314BF423
220R
3307
P5
6307
7317BF422
BAS316
4306
6
180p
2301
BF422
7315
4
P6
V12
GND_CRT1
P4
GND_CRT1
1303
7307
4303
220R
3306
V17
6316
EH-B
1
2
3
4
5
6
7
8
P3
6313
1n2318
1K5
3309
4307
GND_CRT1
7318BF423
730933
K
3300
P99
GND_CRT GND_CRT
3310
220R
VG2
7308BF422
7
CR8
6301
BAS316
4305
H2
GND_CRT
47n
2304
220R
3302
6318
BZ
X28
4-C
8V2
2303
Filament
V16
V15
GREEN
BLUE
RED
V13
V14
3139 123 5800.1 E_14560_010.eps150304
V15
50V / div DC20µs / div.
V16
50V / div DC20µs / div.
V17
50V / div DC20µs / div.
V12
1V / div DC20µs / div.
V13
1V / div DC20µs / div.
V14
1V / div DC20µs / div.
EN 26L03.2L AA 7.Circuit Diagrams and PWB Layouts
Layout CRT Panel (Top Side)
E_14560_011.eps1902043139 123 5800.1
VG2 A11300 A11301 B11302 B11303 B11304 B12303 A12304 A13300 A13301 A13304 A13305 B13308 A13309 B13310 A13313 A13318 B13319 B17308 A17310 A17312 A17313 A17314 A17315 A17316 A17317 A17318 A1 9300 A19302 A19303 A19304 A19314 A19315 A19316 A19317 A19318 A1
Layout CRT Panel (Bottom Side)
E_14560_012.eps1304053139 123 5800.1
2300 A12301 A12302 A12318 A13302 A13303 A13306 A13307 A13311 A14300 A14301 A14302 A14303 A14304 A14305 A14306 A14307 A16301 A16307 A16313 A16316 A16317 A16318 A17307 A17309 A17311 A1
Alignments EN 27L03.2L AA 8.
8. Alignments
Index of this chapter:8.1 General Alignment Conditions8.2 Hardware Alignments8.3 Software Alignments and Settings
Note: The Service Default Alignment Mode (SDAM) is described in the "Service Modes, Error Codes and Fault Finding" section. SDAM menu navigation is performed by using the MENU UP, MENU DOWN, MENU LEFT, and MENU RIGHT keys of the remote control transmitter.
8.1 General Alignment Conditions
Perform all electrical adjustments under the following conditions:• AC voltage and frequency: according to country's
standard.• Connect the television set to the AC power via an isolation
transformer.• Allow the television set to warm up for approximately 20
minutes.• Measure the voltages and waveforms in relation to chassis
ground (with the exception of the voltages on the primary side of the power supply). Never use heatsinks as ground.
• Test probe: Ri > 10 M ohm; Ci < 2.5 pF.• Use an isolated trimmer/screwdriver to perform the
alignments.
8.2 Hardware Alignments
Figure 8-1 Top view mono carrier
8.2.1 Vg2 Adjustment
1. Activate SDAM by pressing the following key sequence on the remote control transmitter: 0 6 2 5 9 6 directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).
2. Use the MENU UP/DOWN keys to highlight the WHITE TONE sub menu.
3. Press the MENU LEFT/RIGHT key to enter the WHITE TONE sub menu.
4. In the WHITE TONE sub menu, press the MENU UP/DOWN keys to select NORMAL RED, NORMAL GREEN, or NORMAL BLUE.
5. Use the MENU LEFT/RIGHT keys to set the values of NORMAL RED, NORMAL GREEN and NORMAL BLUE to '40'.
6. Press the MENU button twice to enter the normal user menu.
7. In the norma
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