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Published by JH 0564 TV Service Printed in the Netherlands Subject to modification EN 3122 785 13901
©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
L03.1LAA
CL 36532044_000.eps020603
Contents Page1. Technical Specifications, Connections, and Chassis Overview22. 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 13
7. Circuit Diagrams and PWB Layouts Diagram PWBMono Carrier: Power Supply (A1) 14 24-30Mono Carrier: Deflection (A2) 15 21-24Mono Carrier: Tuner IF (A3) 16 21-24Mono Carrier: Video Processing (A4) 17 21-24Mono Carrier: Audio Processing (Stereo + SAP) (A5) 18 21-24Mono Carrier: Audio Amplifier + Mono Sound Processing (A6) 19 21-24Mono Carrier: Font I/O + Front Control + Headphone (A7) 20 21-24Mono Carrier: Rear I/O Cinch (A8) 21 21-24Mono Carrier: Diversity Table for Rear I/O Cinch 22 21-24Mono Carrier: DVD Power Supply (Optional) (A9) 23 21-24CRT Panel (B1) 31 32Top Control Panel (E) 33 33
8. Alignments 359. Circuit Descriptions, List of Abbreviations, and IC Data Sheets43
Abbreviation List 37IC Data Sheets 39
10. Spare Parts List 4911. Revision List 53
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Technical Specifications, Connections, and Chassis OverviewEN 2 L03.1L AA1.
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter:1.1 Technical Specifications1.2 Connections1.3 Chassis Overview
1.1 Technical Specifications
1.1.1 Reception
Tuning system : PLLColour systems : NTSC M
: PAL M: PAL N
Sound systems : Mono, or: BTSC with SAP
A/V connections : NTSC M: PAL M: PAL N
Channel selections : 181 Presets/Channels
: Full-CableIF frequency : 45.75 MHzAerial input : 75 ohm (F type), Coax
1.1.2 Miscellaneous
Audio output : Mono: 3 W rms: Stereo: 2 x 3 W rms
Mains voltage : 90 - 276 V (± 10 %)Mains frequency : 50 / 60 Hz (± 5 %)Ambient temperature : + 5 to + 45 °CMinimum air pressure : 60 kPa (=600 mBar)Maximum humidity : 90 %Power consumption : 36 W (14”) to
: 50 W (21”)Standby Power consumption : < 3 W
1.2 Connections
1.2.1 Front Connections and Front / Top Control
Figure 1-1 Front connections
Headphone1 - Headphone, 3.5
mm 8 - 600 ٠/ 4 mW ��
Audio / Video In2 - Video 1 Vpp / 75 ohm ��3 - Audio Mono 0.2 V rms / 10 kohm ��
1.2.2 Rear Connections
Figure 1-2 Rear connections
Monitor Out1 - Video 1 Vpp / 75 ohm ��2 - Audio L (0.5 Vrms / 1 kohm) ��3 - Audio R (0.5 Vrms / 1 kohm) ��
AV1 In (YUV)1 - Y 0.7 Vpp / 75 ohm ��2 - U 0.7 Vpp / 75 ohm ��3 - V 0.7 Vpp / 75 ohm ��
AV1 In4 - Video 1 Vpp / 75 ohm ��5 - Audio L (0.5 Vrms / 10 kohm) ��6 - Audio R (0.5 V rms / 10 kohm) ��
INSTALL MENU
- VOLUME +
LED IR LED
VIDEO
AUDIO
- VOLUME +
CHANNEL
INSTALL/MENU
TOP CONTROL
CL36532044.019.eps060603
V+V-
P-
P+
MONITOROUT
AV1IN
AV1 INCVIAVout
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V
L
R
Y
U
V
V
L
R
75 Ohm ANT.
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Technical Specifications, Connections, and Chassis Overview EN 3L03.1L AA 1.
1.3 Chassis Overview
Figure 1-3 Chassis overview
B1
MAINCHASSIS
PANEL
A1
E
A2
A3
A4
A8
POWER SUPPLY
TOP CONTROL PANEL
LINE DEFLECTION
A5
AUDIO AMP + MONO SOUND PROC.
TUNER IF
VIDEO PROCESSING
FRONT I/O + FRONT CONTROL+ HEADPHONE
AUDIO PROCESSING (STEREO +SAP)
REAR I/O CINCH
DVD POWER SUPPLY A9
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CRT PANEL
A6
A7
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Safety Instructions, Warnings, and NotesEN 4 L03.1L 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 5L03.1L 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
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Mechanical InstructionsEN 6 L03.1L 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 (red) connector 0212.
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
1
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1
3
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Service Modes, Error Codes, and Fault Finding EN 7L03.1L 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 The Blinking LED Procedure5.6 Protections5.7 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.
Table 5-1 Test Point Overview
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) and the TV chassis. It offers the ability of structured trouble shooting, error code reading and software version readout for all chassis. Requirements: To run ComPair on a computer (laptop or desktop) requires, as a minimum, a 486 processor, Windows 3.1 and a CD-ROM drive. A Pentium Processor and Windows 95/98 are however preferred (see also paragraph 5.4).
Table 5-2 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• Tuning frequency: 61.25 MHz (channel 3) for NTSC-sets
(LATAM).• Color system: PAL-M for LATAM BI/TRI/FOUR-NORMA.• 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 activate 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• Temporarily connect jumper wire 9257 to pin 4 of 7200 on
the mono carrier (see Fig. 8-1) and apply AC power. Then press the power button (remove the connection after start-up).Caution: Activating SDAM by temporarily connecting jumper wire 9257 to 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 activating 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.
TEST POINT CIRCUIT DIAGRAM
Fxxx, Ixxx POWER SUPPLY A1
Fxxx, Ixxx Deflection A2
Fxxx, Ixxx TUNER & IF A3
Fxxx, Ixxx VIDEO PROCESSING A4
Fxxx, Ixxx AUDIO PROCESSING A5
Fxxx, Ixxx AUDIO AMPLIFIER + MONO SOUND PROCESSING
A6
Fxxx, Ixxx FRONT IO + FRONT CONTROL + HEADPHONE
A7
Fxxx, Ixxx DVD POWER SUPPLY A9
Fxxx, Ixxx CRT PANEL B1
SW Cluster
Software name
UOC type
UOC Diversity
Special Features
L3SLM1 L03LM1 x.y TDA9370 55K ROM Size
Trinorma Mono
L3SLM1 L03LM1 x.y TDA9377 55K ROM Size
NTSC Mono
L3SLS1 L03LS1 x.y TDA9370 55K ROM Size
Trinorma BTSC SAP Stereo
L3SLS1 L03LS1 x.y TDA9377 55K ROM Size
NTSC BTSC SAP Stereo
Abbreviations in Software name: L = Latam, M = Mono, S = Stereo.
� � � � � � � � � � � � �
� � � � � � � � � � � �
� � � � � � � � � � � � � � � � � � � � �
� � � � � � � � �
� � � � �
�� � �
� � � � �
� � � � � � �
� � � � � �
� � � � �
CL 36532044_033.eps130603
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Service Modes, Error Codes, and Fault FindingEN 8 L03.1L AA5.
• 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.
• ERR. The error buffer. Five errors possible.• OPTION BYTES. Seven codes possible.• 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 8.3.5 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 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 (Dealer Service Tool), 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
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Service Modes, Error Codes, and Fault Finding EN 9L03.1L AA 5.
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 case of the L03 chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector (located on the Main panel, see also figure 8-1 suffix D). The ComPair faultfinding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways:• Automatically (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 extend. 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 F001 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. Beside fault finding, ComPair provides some additional features like:• Up- or downloading of pre-sets.• Managing of pre-set lists.• 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 8-1 suffix D).
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:• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.• ComPair interface (excluding 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.• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003). Note: If you encounter any problems, contact your local support desk.
• ComPair interface cable: 3122 785 90004.
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 out 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.
86532027_003.EPS050898
PC VCR I2CPower9V DC
-
Service Modes, Error Codes, and Fault FindingEN 10 L03.1L AA5.
5.4.8 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. It is wise to write down the errors of the error buffer before you clear it.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
5.5 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 activated, 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 activating 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.
5.6 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 mode 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.
5.7 Repair Tips
Below some failure symptoms are given, followed by a repair tip.• Set is dead and makes hiccupping sound. “MainSupply”
is available. Hiccupping stops when de-soldering L5563, meaning that problem is in the “MainSupply” 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 SDAM 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 & 7496.
• Set is non-stop in hiccup mode. Set is in over current mode; check the secondary sensing (opto coupler 7515) and the “MainSupply” 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: resistors 3449 & 3450 are defective
ERROR Device Error description Check itemDiagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) - -
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection 7461, 7462, 7463, 7464, 7465, 7466 A2
4 AN5891K & AN5829S Tone control & Audio processor I2C identification error 7821 (tone IC), 7841 (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 11L03.1L AA 6.
6. Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram
POWER SUPPLY 0212
43
2
1
2
8
9
12
13
3
6
2 5
6
13504
CL 36532044_030.eps190603
F510
I505
F567
F568
I533
I848 I830
I847 I836
0211
0231 (NOT USA)
MAINSSWITCH
3543
5562
3544
6522
2528
A1Degaussing
Coilt
1515
5520
7580
7520TEA1506
7200-DTDA93XX
DRAIN
DRIVER
SENSE
DEMAG
CONTROLIC
CTRL
Vcc
ENERGIZINGCIRCUIT(optional)
AC
DC
65045500
10
1
2
4
3
1500
T4E
2503 6562
6563
6561 MAIN SUPPLY
-12V
5563
5560 6560F542
F540
I553
Vaux/Vaudio
PW-ADJ
DVD-SUPPLY
3549
A4
A4
A9
A2
Std_Con
HOT GROUND COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541
+3V3B
STANDBYCIRCUIT
7515TCET1103
3527
3525
3523
3526
752114
11
9
35227
D
SG
F566
I514
6520
3528
7523
3506
5570 6570
(OPTIONAL)
1185 1124
1184 1121
DVD POWER SUPPLY(optional)
A9
1
3
5
1572
1
4
1571
A1
A3
FRONT I/OA7
V
L
AUDIO PROCESSING (STEREO + SAP)(FOR STEREO SETS ONLY)
A5REAR I/OA8MONO
V
L6
1
4
2
1
3
2
1
3
6
1
4
V
LL1_IN
R1_INR
R
STEREO
F905
AUDIO AMPLIFIERA6
A4
7901 AN7522N (STEREO)7902 AN7523N (MONO)
6 2 L+
L8
9VOLUME
1
0280
F906
4 L-
F907
10 R-
F908
12 R+R
4
5
1
2Vaux/Vaudio
A5 A4
A5A8
A5
A5
A4
A4
A4
V
L
MO
NIT
OR
OU
TP
UT
YU
VIN
PU
T
AV1
FRAME
LINE
R
L-OUT
SEL_AV1_AV2SY_CVBS_IN
L1_IN
7841AN5829S
7821AN5891K
R1_IN
7161,7162
CVBS_TER_OUT7101
R-OUT
V
L
R
G-SC1_IN_Y_IN
B-SC1_IN_U_IN
R-SC1_IN_V_IN
A4
A4
A4
A5
A5
C-IN
L2-IN
R2-IN
V
L
R
4
65
15
4
32SVHS
AV2
(OPT.)
STATUS2
MATRIXSWITCH
10
911
A8A8
A4
A8
R2_IN 24
21
22
3
22
12
15
L_OUT
Main_OutR
Main_OutL
R_OUT
L_OUT
R_OUT
23
2
3
14
19 3842
3843
SD
A
SC
L
3828
3827
L_OUT
MONO
L2_IN
SWITCH
STEREO+
SAPDEMODULATOR
ERR4
SURRTONE
ERR4
18
14
13
7451
3549
EHT
7570SI2306D
7571L4978
3 2
1
3571VTsupply-A
DVD_SUPPLY
MAINSUPPLY
5571 5572
5575
5574
5573
Vcc4
1CONTROL
OUT5
6571
+12V-DVD
+8V-DVD
DEFLECTIONA2SYNC.A4
A1
I461
F461
F422
F449
F448
A2
A1
F425
I462
I462
I468
-12V
7421BUT11APX5461
F4073424
02211
2
HOR.DEFL.COIL
02221
2VERT.DEFL.COIL
5445
1
V
H
7
2
36
FOCUS VG2
EHT
10 EHT
A4EHT 0
A4
A4
A3
A4A2
BEAM-LIMIT
3447
9
33
22
34
21
20
64468
5
4
6463
3445
3446
3475
VT_SUPPLY
6447+160V
-12V
FILAMENT
3448
3459
6452
6451
F4466444
3443
3444
FRAME OUT
6422
2423
6408
6407
2406
5401 3402
3403
7423
7422
3425
6423
Vaux/Vaudio
FILAMENT
A2EHT 0
H-DRIVE
Hflybk
H-DRIVE2nd LOOPH-SHIFT
V-DRVE+
GEOMETRY
VIDEOINTERNAL
EW+
GEOMETRY
H/V SYNCSEPERATOR
H-OSC+PLL
TO MPEGCARD(optional)
TO DVDENGINE(optional)
3463
3465
3464
7463
74617465
7462
-12V
V-DRIVE -
N.C.
V-DRIVE +
3470
7466
7464
3474
3451
2455
HEADPHONEA7
L+
L-
R-
R+
L+
L-
R-
R+
F642
F643
5602
364236433605
3604
56035601
A3
A1
A5
FRONT CONTROLA7
E TOPCONTROL
CONTROLA4 +3.3V
WP
36013602
+3V3
+3.3VF691
57
162112MHz58
1
KEYBOARD
LOCALKEYBOARD
LOCALKEYBOARD
CHANNEL + / -VOLUME + / -
CHANNEL + / -VOLUME + / -
7200-BTDA93XX
VSTPWM-DAC
ROMRAM
CPU
IICBUS
I/OPORTS
11 7
3
2
5
8
6
5
54 61 56
IR 67
LED 11
8
7641M24C04
EEPROM(NVM)
SDA
SCL
Pvv_ADJ
7
63
64
ITV_POR
A46 ITV_CLOCK
A1
A41 Std_Con
A8STATUS 2
A8SEL_AV1_AV2
60
A4POR(ITV)
A64 VOLUME
SDA
N.C.
N.C.
N.C.
SCLOR
9257SDAM
1/10PAGES
MEMORY
TELETEXT/CC
+OSD
CVBS SYNC
ERR9
ERR6
6692TSOP1836
+3V3
IR
LED6691
OR0239
10102
�������
� � �� ��
� � � � ��
� � � � ��
CRTB1
13001
2
3
5
6
7
8
3305
3309
3301
F301
F302
F303
F309
F310
4
R
G
B
R
G
B CRT(9P)
25kV
FOCUS
EHT
EH
T
VG2
VG2
7
9
3
4 5 6 8
73137314
R
73177318
B
73157316
G
0165AQUADAG
6318
3418
+160V
3313
+160 VA8
A8
A8
A8
5201
IF, VIDEOA4
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
F603
A8CVBS_TER_OUT
AM_FM_MONO
4012014.5MHz
C-IN 43
SY-CVBS-IN 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
F604
F605
1
2
3
4
5
6
7
8
OSD
A2BEAM-LIMIT
A2FRAME_OUT
+160 V
A2
A2
FILAMENT
F003
1003
SDA
SCL
COMPAIRCONNECTOR
5002
TV TUNER
3003
SDA
SCL
3004
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
9282
DVD EJECTPOWER (USA only)
-
12L03.1L AA 6.Block Diagrams, Testpoint Overviews, and Waveforms
I2C and Supply Voltage Overview
POWER SUPPLY 0212
43
2
1
2
8
12
10
13
3
6
2 5
6
13504
CL 36532044_032.eps160603
F510
I505I533
3543
5562
3544
6520
2528
A1Degaussing
Coilt
1515
5520
7580
7520TEA1507
DRAIN
DRIVER
SENSE
DEMAG
VCC
CONTROLIC
CTRL
Vcc
ENERGIZINGCIRCUIT(optional)
AC
DC
65045500
9
1
2
4
3
2503 6562
6563
6561
MAIN SUPPLY
-12V
5563
5560 6560F542
F540
I553
Vaux/Vaudio
2 x
1 x
DVD-SUPPLY
3549
Std_Con
HOT GROUND
COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541
+3V3B
STANDBYCIRCUIT
7515TCET1103
3527
3525
3523
3526
752114
11
9
35227
D
SG
I514
6520
3528
7523
3506
5570 6570
(OPTIONAL)
FRAME
LINE
3549
7451EHT
PW_ADJ
DEFLECTIONA2
A1
F461
F422
F449
F448
H DRIVE
A4F425
-12V
7421BUT11APX
5461
3424
02211
2
HOR.DEFL.COIL
02221
2VERT.DEFL.COIL
5441
1
7
2
FOCUS VG2
EHT
10 EHT
A4EHT 0
A4BEAM-LIMIT
3447
9
64468
5
4
6463
3445
3446
VT_SUPPLY
6447+160V
-12V
1x
2x
2x
2x2x
3448
3459
6452
6451
F4466444
3443
3444FILAMENT
6422
2423
6408
6407
2406
5401 3402
3403
7423
7422
3425
6463
Vaux/Vaudio
FILAMENT
3463
3465
3464
7463
74617465
7462
-12V
3470
7466
7464
3474
3451
2455
TUNER IFA3
FOCUS
EHT
VG2
CONTROLA7 TUNER IFA3
3605
7641M24C04EEPROM
(NVM)
3604
3643
3642
65
3
2
11 WP 7
ERR9
7200-BSET
PROCESSOR
PART OFVIDEO-
PROCESSORTDA9370
ERR6
SDA
SCL
SCL
SDA
3602
+3.3V
3644
+3.3V
3601
+3.3V
1000TUNERUV1336
3003
3004
45
ERR10
1
2
1003
3
AUDIO PROCESSING(only for stereo sets)
A5
7821AN5891K
AUDIOPROC.
3828
3827
1314
ERR4
7841AN5829S
AUDIODECODER
3842
3843
4119
ERR4
SCL
SDA
FORCOMPAIR
ONLY
I2C BUS INTERCONNECTION DIAGRAM
ERROR CODE LIST
A4
A4
A2
+ 5 V+ 5 V
+ 5 V
+ 8V
1300
7
8
9282
VT supplyVT supply
VT supply-A
VT Supply-A
CRTB1
VIDEO PROCESSINGB1A4
EHT
FOCUS
FILAMENT
160 V
VG2
AUDIO PROCESSINGA5
7 - 78415841
582123 - 7821
+ 5V
AUDIO AMPLIFIERA61 - 7901or1 - 7902
+ 5V
FILAMENTFILAMENT
+ 3V3A
+ 3V3B
AUDIO FRONT I/OA7
+3V3B4698
36933 - 6692
+ 8 V
REAR I/O CINCHA8
+8V
4163+8VA
Vaux/Vaudio
Vaux/VaudioFILA-MENT
160VD
FILAMENT
4379
3493
7
1622
8
74933494
3
A1
A2
In
1
3495
5482
4491
+3V3
+5V
+8V1x
1x
1x+8VD
+3V3A
6491
7494
6492
3496
3497
7496
7491
3492
3491VTSupply-A
-12V,FILAMENT,
Vaux/Vaudio
VT supply-A,VT supply,FILAMENT
A4
V DRIVE-
V DRIVE-
1x
1x
2x
����� ������ ����� �������� ����� ���� �������
� ��� ���������� �� ����� � �
� ��� ���������� ����� ��������� �� !" � �
# ��� ���������� $���%���� ��������� &'#�( &'##( &'#) !#
) ��� ���������� *������� ��������� &'+�( &'+#( &'+)( &'+'(&'+,( &'++
!#
' !�,-.�/ 0!�,-#.
1�� ������ 0 !2�������
�� 3#� ����4�����������
&-#� ���� 3�"( &-'�� �����5 ��"
!,
, 1�!.)�� �6� )7)* 5 -* ��������� ��( &,'�( &'.�( &'.)(&'.+
!'( !�
+ 3#� �2 8����� 3#� �2 ����� ��( )+�'( )+�, !'
& ��� ���������� � � �
- ��� ���������� �59 ��������� �:���� ����" � �
. ;#'��+ �*; 3#� ����4������ ����� &+'�( )+'�( )+'#( )+') !'
�� 12�� 12�� 3#� ����4������ ����� ����( )��)( )��' !)
�� ��� ����������
-
Block Diagrams, Testpoint Overviews, and Waveforms 13L03.1L AA 6.
Testpoint Overview
CL 36532044_031.eps200603
MainsSwitch
COLD
IRRCR
HOT LIVE PART
Supply Control
SupplyOutput
Line Output
Power Trafo 5520
7
7 6 5 3
7421
6447
5441LOT
6570
6560
0246
39033905
7496
3643
InOut
79017902
6562 2405
6446
7464
7465
7463
0222
6444
74617462
D
C
B E
SG
2
1 10
9
8
5
B
EC
B
B EEC
C
43
2
6
7
1
8
1
B
C
E
112
2413
2 1
5
12
114
5 8
32
3364 44
18
9 10 12 13
12
8 14
COLDHOT
F407
F510
I847
I848
I462
F481
F643
I553I542
F603
F604
F605
I540
I533I505
F425
I514
I836
I830
F449
F448
F446
I461
I465
7520
+ F422
F461
1
6692
F691
F907
F908
F909
F906
F903 F901
CBF
1
11 1
1 3
AudioOutput
Video Processor
Tuner
Compair conn.
NVM
AudioProcessor
AudioDemodulator
Frame Output
7841
3488
1622
7200 1000
1003
2413
112
15
7821
F491
F494
F492
F493
F494
I211
F642
F003
3
45
6
7
8
8
9 1011
12
1302
1300 CRT
Sock
et
F310 B
F308 R
F309 G
F301
F302
F303
23 1
CRT TRACK SIDE VIEWMONO CARRIER TRACK SIDE VIEW
F003
200mV / div AC20µs / div.
F308
50V / div DC20µs / div.
F309
50V / div DC20µs / div.
F310
50V / div DC20µs / div.
F407
100V / div DC20µs/div.
76417493
6491
7494
F425
5V / div AC20µs / div.
F446
2V / div DC20µs / div.
F448
10V / div DC20µs / div.
F449
50V / div DC20µs / div.
F461
20V / div DC5ms / div.
F481
0,5V / div DC20µs / div.
F491
2V / div DC20µs / div.
F492
2V / div DC20µms / div.
F493
2V / div DC20µs / div.
F494
2V / div DC20µs / div.
F510
50V / div DC5µs / div.
F603
1V / div DC20µs / div.
F604
1V / div DC20µs / div.
F605
1V / div DC20µs / div.
F301
1V / div DC20µs / div.
F302
1V / div DC20µs / div.
F303
1V / div DC20µs / div.
F642
0.5V / div DC20µs / div.
F643
0,5V / div DC20µs / div.
F691
1V / div AC2ms / div.
F901
0.5V / div AC1ms / div.
0.5V / div AC1ms / div.
F903
F905
0,5V / div AC1ms / div.
F906
0,5V / div AC1ms / div.
F907
0.5V / div AC1ms / div.
F908
0.5V / div AC1ms / div.
I211
1V / div DC1ms / div.
I461
0.5V / div DC5ms / div.
I462
0.5V / div DC5ms / div.
I465
1V / div AC5ms / div.
I533
2V / div DC5µs / div.
I830
1V / div DC1ms / div.
I836
1V / div DC1ms / div.
I847
0.5V / div DC1ms / div.
I848
0.5V / div DC1ms / div.
I514
100V / div DC5µs / div.
F422 97V DCF540 97V DCF542 13V5 DC
I505 =17V8 DC
3642A2 A1
K
21 22
E BC
E BC
-
14L03.1L AA 7.Circuit Diagrams and PWB Layouts
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
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
+t
Rs
Rp +
t
G
A
B
C
D
E
F
G
0211 C10212 B10213 C50231 C21500 B21501 B31508 E71509 E71515 A71516 E71520 B71560 D7
2503
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
A
B
1N41
48
6521
C
D
E
F
I505
1570 C82452 F112453 F102500 C32501 B52502 B52503 B62504 B62505 B22507 B62515 C72520 G22521 E22522 D62523 E62524 E52525 F52526 E22527 F12528 G62540 F92541 G92542 G72543 F62560 D82561 D92562 D92564 D102570 C92571 C82580 B72584 C62585 E63452 F113453 F103454 F93456 F113500 C23501 D23502 C43503 B43504 B43505 C43506 D43507 D23508 B43509 C33510 D33519 F6
1508DVD_Gnd
3520 G23521 F23522 E53523 E53524 E53525 E53526 E63527 D53528 F13541 F83542 E93543 E103544 F93545 G83546 F113547 F93548 F93549 E93550 E103580 A73581 F63582 D104560 D85500 B45501 C45502 D45506 C75509 G45515 E5
5520 C75521 D65560 D85562 C95563 C105570 C76500 B56501 B56502 B56503 B56504 B56505 D26520 E26521 E66522 F66540 F86541 E96560 D86561 D9
2n2
2501
6562 C96563 C96570 C86580 A8
2585
1n
7451 F107515 F77520 D27521 E67522 F67523 F17540 F97541 G87580 A79500 B29501 C29502 C4
1570
9503 A69506 C79509 G49515 E59520 D69560 D7
3526
1n0
2543
400V
5521
1K0
3548
15K
2K2
3527
16V
150u2
504
3
6
7
8
9
4560
3541
470R
PDTC114ET
7541 4n7
2453
11
12
132
3
5
6
7 8
9
330K
3522
1 4
2
5501
9509
3542
1K5
2542
470n
2520
47K
3456
3543
5560
02121
2
6K8
3544
6561
6560
SB340
5570
2
0211
1
3506
2580
47u
9501
BC857B
7451
10
11
142
7520
3503
1
2
S
56p
7521
*
90 - 276 V FULL RANGE
6561
3V3
100u/400V
STP7NK80ZFP- -
5520
-
-
1W/0R151W/0R18
9500
6V2
(..V..) Standy Mode
0V
*
*
0V
**
2V9
*
*
220V AC 309V (317V)
*
MAINS
0V
22V60V
*
1n5
T2.5AE 250V
*
MAINS SWITCH
A4
D
*
820K
T4E.250V
82n
TEA1506T
SS28010-06
BZ
X79
-C9V
1
3V3
G
RES
RES
17V8
RES
JUMP
*
--
22K330K330K330K330K3547
21RF
3M3
*
RE
S
HOT GROUND
LATAM
*
3V3
*
9V3
*-
For ITV
25030231
Size
8V3
3523
**
For Relay Cct.
302V
6K8
9501
330K
-
POWER SUPPLY
NAFTALATAMITEM
STP7NK80ZFP
A2
STP5NK80ZFP
"$"
STP5NK90ZFP
S359B4-09SS28010-06
1W/0R15
BYW76-RAS15/10
6V8
10R
- P
TC
RES
15RF/20"/21"Mexico14"MEXICO15RF/20"/21"
JUMPJUMP
2V6
14"
NFR25 68R150u/400V
SWITCH100u/400V
Region
*
SWITCH
3526
*
S359B4-09-
(13V8)
BYW76-RAS15/10
1V3
JUMP
150u/400VNFR25 68R
FOR ITV ONLY
NFR25 47RNFR25 47R
JUMP
COLD GROUND
330K
1W/0R18
FOR MAINS 120V AC 170V (177V)
-
..V.. Normal Operation in " SERVICE MODE " A4
RES
*
7V7
T1.8AE 250V
4V9
150 - 276 V SINGLE RANGE
2V6
RES
1515
G5P
23
14
2502
2n2
4V6
HOT
303V
302V
ONLY
COLD
2505350335045500
95035502
Relay Cct.
YESNOYES
DMF2820
YESNO
NO
NOYESNO
C914
NOYES
YES
RES
RES
RE
S
DEGAUSSING COIL
3M3
"$"
*
*
5509
RES
RES
--
-----
7523BC857B
BC547B7540
3510
DSP
50V
22u25
28
3521
F510
7521
1N5062 (COL)
6503
7580
BC847B
220p
2584
2505
2n2
2n2
2560
9520
6562
BYW76
1N5062 (COL)
6501
F540
1N5062 (COL)
6502
6500
1N5062 (COL)
1 2
3
2525
3504
470p
3582
1n0
2526
3581
1K0
3453
100K
10n
2541
3520
1K2
2527
6580
1M5
3508
1N41
48
27u
5563
BZX384-C22
6505
3507 33K
3500
BYW29EX
6563
3580
47K
2515
2500
470n
22u
2521
BYD33D
6522
15n
2540
5506
7522PDTC143ZT
9506
2523
1n8
220R
3549
2507
2522
470p
PFC50001501
9560
47u
15209500
2564
I553
2n2
2562
I533
3547
3m325
70
100n
2524
3502
3528
10K
1560
6541
3519
10K
3454
3K3
TCET1103(G)7515
14
3 2
C914
5502
31
46
3452
3505 5520
1
10
5562
3545
2K2
2452
6520
BY
D33
D
9503
4
2 3
BZ
X79
-B6V
8
6540
5500
DMF-2820
1
9515
3
DVD_Gnd
5515
0213
1516
10n
2571
3509
220R
16V
2m225
61
1500PFC5000
82K
1509
STPS10L60D
65701
2
56
3
4
3523
ESB920231
10n
3501
9502
35253524
47K
3550
10K
3546
I514
F542
6504
GBU8K
PW_ADJ
DVD_Supply
(OPTIONAL)
Vaux/Vaudio
ITV_Vbatt
EHT
L_GND
-12V
Std_Con
MainSupply
+3V3B
AudioSupplyGnd_A
3139 123 5596.1 CL 36532044_001.eps200603
F540 97V DCF542 13V5 DC
I505 17V8 DC
F510
50V / div DC5µs / div
I533
2V / div DC5µs / div
I514
100V / div DC5µs / div
-
Circuit Diagrams and PWB Layouts 15L03.1L AA 7.
Mono Carrier: Deflection
VG2
EHT
FOCUS
G
A
B
C
D
E
F
G
0221 B40222 F61462 F61463 E72405 D32406 D42407 C42408 D42420 B22421 B22423 A42424 A42426 B12427 B12428 C12429 B12441 C92444 D82446 D82447 D72455 C82457 D72460 E5
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
A
B
C
D
E
F
9505
2461 E12462 E3
2426 1n
2463 E32464 F32465 E52470 F5
0221VH
1
42471 B12472 G42473 C73402 D43403 D33422 A33424 A13425 C13426 B3
33K
3449
3428 B23430 C23432 C23439 C83440 C83441 C73442 C73443 C63444 D63445 B63446 D63447 B83448 D63449 B83450 B83451 C83455 C93459 C73460 C93461 F13462 F13463 E23464 G23465 F23466 F23468 E33469 E43470 F43471 F43472 F43473 G53474 G53475 F53476 F53477 G43478 F54405 D35401 D45402 D45421 B35441 A55505 F86407 D46408 D46421 A46422 A36423 C16426 B2
3474
3R3
6444 D76445 C76446 D76447 D76451 C9
6452 C86453 C86460 E36461 E56462 E56463 E56464 E37421 A37422 B27423 C27440 C87461 F2
220R
7462 F27463 F37464 E47465 F47466 F39402 D4
9445
9407 C49445 B69446 E69448 D69505 F8
3446
1R
2R2
2455
10u
16V
9446
82R
3425
MainSupply
HDRIVE
-12V
VDrive-
Frame_FB
VDrive+
VTSupply
MainSupplyGND
-12V
-12V
Vaudio
Filament
-12V
160VD
FILAMENT
Beam_Limit
Hflybk
Frame_OUT
EHTO
FILAMENT
EHT
2460
56n
2406
470n3403
1K
3460
100K
9402
RGP10D
6447
I461
I462
6421
BY
W76
3463
2K2
RGP10D
6463
68R
3469
6461
RGP10D
6460
3468
330R
1K3432
9448
3428
68R
I465
160V
10u2
465
6422
BY
D33
M
2444
470u
BA
S31
6
8K2
3451
2K2
3464
BC857B7461
HORIZONTAL
22n 100n2453 - -
0V4
12V212V8
RE
S
12V2
0V6
0V9
120K
A4
5V7
0V
94V4
TO PICTURE TUBE
TO CRT PANEL
DEFLECTION
3V3
0V3
0V9
1V5
A4
3V3
12V2
0V8
12V8
100K150K
-
68u/LHL08
10KNFR25H 2K2
1n5/2KV
34562K22K2470R
3R3-
47K 47K
- 680n/250V 560n/250V2423
5401
COILDEFLECTION
5V4
A4
Frame Deflection
120K
0V9
4R73474
A4
VERTICAL
0V
20V6
3R33R93R9
A4
A4
A2
2K28K2
Line Deflection
0V5
5441
47K
3450
33K
47K -3460 100K
3451220K
150K150K100K220K3447
Tube
2406
LINE DEFLECTION
LPDLPDCPT
34558K21K8680R
LPD CPT
3442
3R3- 360n/250V -
JF0501-19255
15n/1K6V15n/1K6V13n/1K6V13n/1K6V
33u/LHL08 -
2424 1n/2KV -
-
--
00425/82u
47K
15n 33n2452 - 10n
3441
15n
2408 560n/250V
22n
- 470p/500V
1n/2Kv
3646
JF0501-19276
-
JF0501-19255
LPD21"FSQ20"
10K 56K
LATAMRegion
Size
00511/33u--5402
14" 15RF
1M 1M -
JF0501-19255
LINE DEFLECTION
LPDLPDSize
0V
RES
A4
COIL
A1
A4
15RF14"Tube
3473
470p
2457
2441
DEFLECTION
LOT
A2
RE
S
RE
S
RES
RE
SRES
2n2 -2457 -
LATAMRegion
3402 - - NFR25H 2K2
20" 21"FSQ
100K
4R7 2R2
3441
3465
1K
1n2461
F448
F449
1N4004
6423
F446
BC817-257422
BAV21
6408
3439
3R3
100K
3447
2471
22n
2472
2470
15n
3473
3R3
6451
2427
100n
BAS316
3440
33K
F461
6452
BAS316
3444
1R
1R0
3478
F425
3470
3455
2K2
3471
BC807-25
7423
470p
2464
2423
10n
2447
10u
F422
3402
2K2
RGP10D
6446
DC
12
5402
6444
EGP20DL
BA
S31
6
6426
5505
2420
100n
3422
330K
6407
BAV21
2428
47u
220R
3472
9407
1
10
2
3
4
5
6
7
8
9
F407
11425441
BZ
X79
-C33
6453
33u
5401
150K
3459
470u
2446
BD135
7464
3476
8K2
3424
22R
BF4237440
1R3445
2463
100u
50V
33n2441
6462
RGP10D
1K
3466
3430
1K0
2407
100p
1R
3448
7465BD136
6445
BA
S31
6
PSD10-204B
1
3
5
65421
6464
BA
S31
6
1R
3443
3426
47R100n
2421
7463
1462
BC546B
2408
12n
2424
820p
BUT11APX
7421
2473
470p
2429
220n
1M
3461
2K2
1n2462
3462
3477
3R3
2405
47u
1463
3475
10K
3442
7462
BC857B
4405
1
2
7466BC847B
VH
0222
3139 123 5596.1 CL 36532044_002.eps200603
F407 F422 97VDC F449
50V / div DC20µs / div
F461
20V / div DC5ms / div
100V / div DC20µs/div
F448
10V / div DC20µs / div
F446
2V / div DC20µs / div
F425
5V / div AC20µs / div
I461
0.5V / div DC5ms / div
I462
0.5V / div DC5ms / div
I465
1V / div AC5ms / div
-
16L03.1L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Tuner IF
GND NC
A
B
C
0283 C70285 C71000 B31001 B61003 B12001 B22002 B32003 C32004 C32005 B5
1 2 3 4 5 6 7
1 2 3 4 5 6 7
A
B
C
2006 B12007 B53001 A23002 B23003 B23004 B23005 A14000 C44001 C25001 B55002 A45003 A46001 B59002 A4
100u
2002
9282 A4
2005
220n
10u
2007
4001
1000
TUNER
UV133630
02
RE
S
TUNER IF
A4
RE
S
A4
A4
A4
A4
F003
22K
100R
3003
0285
0283
BZ
X79
-C33
6001
3004
100R
22p
2003
3001
4K7
2004
22p
5001
820n 2
3
4
5
9002
2001
10n
OFWG1984M1001
1
9282
5002
5003
EH-B
10031
2
3
VS
9
VTS
4000
1
AGC
3AS
10
11IF
12 13 14 15 6 8
4SCL
5SDA
2TU
7
3005
100R
10V
470u2
006
+5V
SCL
SDA
VIF_1
VIF_2
TUNER_AGC
+5V
VTSupply_A
VTSupply
3139 123 5596.1 CL 36532044_003.eps200603
F003
200mV / div AC20µs / div
-
Circuit Diagrams and PWB Layouts 17L03.1L AA 7.
Mono Carrier: Video Processing
H-OSC + PLL
AGC CIRCUITNARROW BAND
PLLDEMODULATOR
VIDEO SWITCH
VIDEO IDENT.
VIDEO FILTERS
VISION-IFALIGNMT-FREE
PLL DEMODAGC/AFC
VIDEO AMP
DEEMPHASIS
AUDIO SWITCH
VOL CONTR
RGB/YUV INSERTRGB/YUV MATRIX
SATURATION
YUV/RGB/MATRIX
CPUI2C-BUS
VST PWM-DAC
I/O PORTS
ROM/RAMTELETEXT
CLOSED CAPTIONACQUISITION
1/10 PAGE
MEMORY
TXT/OSD/CC
DISPLAY
EW GEOMETRYV-DRIVE +
GEOMETRY
H-DRIVE
2nd LOOP
H-SHIFT
H/V SYNC SEP.
G
A
B
C
D
E
F
G
0217 C100240 F21201 B21202 D11621 B41622 E102201 A22202 A32203 A22204 B22205 B32206 B42207 B22208 C22209 C2
5u65601
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
E
F
2210 D22211 D12212 D22231 F62232 F62233 F72481 F32482 F22483 F22484 F22485 F32486 F32487 F42488 F52489 F52490 F62491 E12492 B92493 A9
1u0
2494 B72495 G12496 G42497 G52498 F22601 B42602 B52603 B52604 A52605 C72606 C72607 C72608 C82609 A62612 D82615 E72616 E82641 B112642 B102643 F23201 A33202 A23203 A43204 B23205 B33206 B33207 B33208 C23209 C23210 D23231 F73232 F83233 F83410 G53479 B83480 F4
4661
F604
3481 F33482 G33483 F43484 F53485 G53486 G53487 G63488 G43489 G63490 G43491 A73492 B73493 B83494 A83495 A93496 A103497 A103498 G33499 G33601 A53602 A53603 A53604 B53605 B5
3606 A53607 B63608 B63609 B73618 A53619 D73620 D83621 D73624 E93631 A73632 B73633 A73634 C83641 A113642 C103643 B113644 A103645 C93646 F24491 A94602 A74603 A74604 A64606 A4
NC
6SCL
5SDA
M24C047641
2E1
3E2
1
4661 C95201 B25482 E15601 B85602 C85603 C8
3634
1K0 6481 G3
6491 B96492 A106624 E96625 D106626 D86627 D86628 D86681 E87200 C27201 B37202 A47491 A77493 B97494 A107495 G27496 A87601 D9
33p
7641 A109201 A39240 G19286 A69410 G59604 A6
F605
A4
A8
3481
18K
2492
22u
25V
I211
33K
3487
2602
33p
2485 1u
10V
F493
3498
10K
100R
3631
02171
2
3
4
5
6
7
8K2
3632
2K2
3602
3491
56K
2612
220u
100R
3604
F481
3643
100R
3488
100R
6626
BA
S31
6
470R
3621
2K2
3601
3607
100R 1n 2641
100n
2605
2608 1u
2231
22n
9201
22K
3492
A2
1V
2V3
SD
AM
3V2
A4
9257
3V6
A2
A4 A2
4V
0V
3V8
1V6
1V6
2V7
0V1V3
1V4
3V2
0V0V
100p
3V4
A2
Stereo
To 1300
4n7
A3,
A5
A4
12V
A1
A4
, A6
6V7
A3
A3
A4
A4
A4
6V3
3V3
3V3
3V4
8V
2V3
8V
5V
3V2
2V3
FOR ITV ONLY
3V8
0V8
3V4
3V9
3V8
1V9
A8
1N
ITEM #
A5 A1
A7
10R
3V3
2206
A8
3V6
4V
2V6
2V7
RES
A8
A4
A8
2V7
A5 A4
A7
2V7
8V
A6
A7
A4
4M5
A4
10R
A8
A3,
A5
A1
A4
A4
A4
A4
13V4
9V3
8V7
A8
4V A2
3V4
3V3
A8A
8
0V
2V4
0V2
1V5
3V4
NVM
1V9
1V9
3V3
4V
0V
0V3V
3
3V3 0V
20V
23V
3
3V30
V2
3V3
7V7
3V1
3V2
0V
3V7
0V2
0V4
1V
Mono
A4
3V3
3V3
5V
6V3
A2
VIDEO PROCESSING
A4
A4
A8
A2
A2
A2
5V7
of CRT PANEL
3V3
A36V3
39K
3480
3618
2K2
3V3
0V
1V1
1V9
A2
4603
4604
2u2
2498
6624
BAS316
TPS1201
2G
1I
3O
12M
1621
1K3206
3232
1K0
3231
560R
1K0
3645
3202
100R
2604
10u
16V
3484
39K
F494
BC847B7202
7601PDTA114ET
6625
3205
270R
BZ
X79
-C8V
2
1M0
3646
2212
220n
4K7
3644
3482
3K3
100R
3641
2210
220n
7201
BC847B
9604
470u2
491
2207
100n
1n
2211
100n
2208
4606
4u7
5201
F491
680R
3494
BA
S31
6
6481
3603
2K2
2490
4u7
2202
820p
1n0
2496
2603
BZX384-C5V6
6492
4491
3497
390R
470R
3619
2495
22u
25V
3496
10R
100n
2488
100n
2203
3207
390R
2201
4n7
2489
100n
6681
BA
S31
6
1K0
3633
2606
1202
100n
2486
4n7
6628
BA
S31
6
7491BC847B
16V
470R
3209
3499
27K
3489
1M3483
5u65603
10K
5602 5u6
2483
3606
10K
22n
2232
4u7
2482
2205 1
0u
220n
2209
2
3
4
5
6
7
8
2487
2n2
1622
1
100n
2484
5482
10u
F642
F643
F603
2607
100n
22n
2233
BA
S31
6
6627
3605
100R
25V
220u2
494
3201
2K7
3485
1K0
8
VCC
4
VSS7
WC_
2609
1n0
7494BC337-25
3495
33R
100p
2481
6
4602
EH-B
02401
2
3
4
5
9286
3486
1K0
3493
10V
1n0
2615
2493
470u
1n0
2497
2616
10u
16V
100R
3210
LE50CZ7495
GND INOUT
F492
82R
3204
1K0
3624
7496BD135
660 616263 647 8 9
3620
470R
5
50
51
52
53
5455 56575859
40
41
42
43
44
4546 47 48
49
31
32
3334
35
36
37 38
39
4
2122
23
24
25 26
27 2829 3
30
11 12
13
14
15
1617
18
19
2
20
7200TDA93XX
110
3K3
3490
220p
2643
2206
4n7
L78L337493
2
GND
1IN
3OUT
470n
2601
BAV706491
3208
470R
100K
3608
10K
3609
1n0
2642
3479
100R
3642
3410
68K
9240
2204
56p
3233
100R
1K0
3203
9410
TV_BUZZER
ITV_PORT
ITV
_MS
GT
V_B
UZ
ZE
R
AM
_FM
_MO
NO
+5V+8V
+8VD
GREEN
RED
BLUE
+3V3
FILAMENT
Vau
dio
(Vau
x)
VD
rive+
EH
TO
+8V
+3V
3
+5V
Frame_OUT
+8V
Hfly
bk
Beam_Limit
Frame_OUT
SE
L_A
V1_
AV
2
Std
_Con
PW
_AD
J
ITV
_DAT
A_O
UT
STA
TU
S2
RE
SE
RV
ED
_B
RE
SE
RV
ED
_A
BLK_IN
FILAMENT
160VD
ITV
_CLO
CK
ITV
_PO
RT
VD
rive-
ITV_CLOCK
FIL
AM
EN
T
+8V
VT
Sup
ply_
A
SY_CVBS_IN
C_IN
+8VD
WP
KE
YB
OA
RD
L1_I
N
+5VS
Vaux
+5V
+3V
3A
+8V
G_SC1_IN_Y_INIT
V_D
ATA
_IN
PO
R
WP
ITV_DATA_IN
POR
ITV_DATA_OUT
B_SC1_IN_U_IN
R_SC1_IN_V_IN
FBL_SC1_IN
CVBS_TER_OUT
+8V
SDA
SCL
SANDCASTLE
SA
ND
CA
ST
LE
VO
LUM
E
+3V
3
LED
VIF_1
VIF_2
TUNER_AGC
HD
RIV
E
SC
L
SD
A
+3V
3
+8V
D
IR
+3V3
REFO
3139 123 5596.1 CL 36532044_004.eps200603
LUMA DELAY
PEAKING
BLACK STRETCH
PAL/SEC/NTSC
DECODER
BASE-BAND
DELAY LINE
CONTR/BRIGHTN
OSD/TXT INSERT
CCC
WHITE-P ADJ
Y
Y
H
V
R
R
G
B
G B
R G B
BL
U
V
F481
0,5V / div DC20µs / div
I211
1V / div DC1ms / div
F494
2V / div DC20µs / div
F603
1V / div DC20µs / div
F493
2V / div DC20µs / div
F643
0,5V / div DC20µs / div
F492
2V / div DC20µms / div
F642
0.5V / div DC20µs / div
F604
1V / div DC20µs / div
F491
2V / div DC20µs / div
F605
1V / div DC20µs / div
-
18L03.1L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Audio Processing (Stereo + SAP)
PLL
PILOTDET
MPXIN
SAPDET
AGC
AUXL1
AUXR1
OFFCAN1
OFFCAN2
WBTIME
Vcc
WBDET
SPECFIL
SPECTIME
SPECDET
NOISEDET
AUXL2
AUXR2
Rout
Lout
PE
SDA
SCL
GND
SUPERBAS
BAL
BAL
VCA
10 11
A
B
C
D
E
F
A
B
C
D
E
F
1821 A2821 A2822 B2823 D2824 D2825 B2826 A2827 B2828 E2829 E
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9
2830 F2831 E2832 C2833 B2834 A2835 C2836 C2837 B2838 E2839 D2841 C2842 B2843 B2844 C2845 D2846 D2847 D2848 D2849 D2850 E2851 E2852 E2855 C2856 C2857 D2858 E2859 E2860 E2861 B2862 A2863 D3822 D3823 D
2K2
3824
3824 C3825 B3826 C3827 E3828 E3841 C3842 D3843 D3852 E4821 B4822 B4841 E4842 E4843 C4844 C4845 D4847 A4848 A4849 B4850 C4851 C5821 A5841 D7821 B7841 C9821 F
100n
2860
100u
3825
2K2
35V
10n
2828
10u
2831
2846
10u 16V
4844
4847
330n
2848
283415n
2826
4848
I830
I836
I847
3842
100R
JMP
JMPJMP---
2V7
2V1
4V1
4V1
3V
2V1
8V4V1
4V1
1V1
0V5
4V1
4V1
3V3
3V3
1u
RES
AUDIO PROCESSING (STEREO + SAP )
A8
AN5829S
3V4
2V3
2V3
5V
0V6
1V
2V2
2V2
2V2
2V2
2V2
2V3
0V7
A4
A4
ITEM MONO BTSC STEREO
4841 ---
A8
A8
A4 , A8
A8
A8
A6
1u
180K
3841
47n
2857
21V
RE
F
4V1
4V1
4V1
4V1
4V1
4V14V1
4V1
A6
A4
A4
A4
3V2
2V2
3V5
3V2
3V3
3V3
2V2
2V2
2V2RES
RES
RES
48424845
---
RIN22 ROUT 15
RT18
SC
L1314
SD
A
TD 16
VC
C23
VD 11
12
LT8
MODE24
1P
F1
PF
24 5
PF
3
PF
46
RB19
AGC2
BB20
BD 10
BLD 17
7G
ND
LB9
LIN3 LOUT
AN5891K7821
LEVEL SENSE
VOL
TONE
CONTROL
AGC
SU
RR
AGC TONE
VOL
IIC BLOCK
10u
10u
2838
2832
1u
2856
2850 2858
2852
100n
4842
100u
2847
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
AudioSupplyGnd
7841
1
10
11
12 13
3843
100R
220p
2861
2K2
3826
33n
2822
1
2
3 470n
2837
1821
4841
10u
2824
3828
100R
2829
100n
10u
39n
2825
1u
2859
1u0
1u0
2842
2843
10u2833
2839
10u
16V
220p
2863
4843
2821
2830
10u
2855
1u
3827
100R
100n
2851
10u
5821
3823
2K2
50V2u2
2844
4845
10u
5841
4821
100n
2836
4849
2841
4u7
3852
2M2
2823
10u
22n
2849
33n
2827
2845
4u7
10n
2835
2862
220p
4822
4850
9821
4851
+5V
R_OUT
L_OUT
I848
3822
220K
L1_IN
R2_IN
SCL
SDA
+8V
SDA
SCL
R1_IN
L2_IN
Main_OutL
Main_OutR
AM_FM_MONO
3139 123 5596.1 CL 36532044_005.eps200603
AUDIO SOUND PROCESSOR SOUND MULTIPLEX DECODER
I836
1V / div DC1ms / div
I847 I848
0.5V / div DC1ms / div
0.5V / div DC1ms / div
I830
1V / div DC1ms / div
-
Circuit Diagrams and PWB Layouts 19L03.1L AA 7.
Mono Carrier: Audio Amplifier + Mono Sound Processing
F905
10
A
B
C
D
E
F
A
B
C
D
E
F
0246 B100251 F2
1n2905
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9
2901 A62903 A52904 B42905 B42906 C42907 C42908 C22909 D42947 C82948 C92949 C92950 C92951 B52952 C53551 F23901 A43902 A43903 B33904 B43905 C33906 C43907 D43908 B23909 B33910 B33911 C34921 A34922 C86565 F26908 D26909 D37901 B67902 D69565 F29901 B89902 B89903 B3
4922
9905 C39921 A3
9921
330K
3908
100p
2949
15K
3903
6909
1N41
48
3906
F906
10K
3904
9902
0246
1
2
3
4
5
9903
A7
5V2
SPEAKER
AmpOutR_Pos
A7
A7
RE
S
A4
A7
*
1V4
RE
S
RES
2 X 1W
2 X 5W
8 ohm
5V2
AmpOutL_Pos
RES
RE
S
RES
RES
3906
YES
NO
7901
A4
-
8 ohm
0V3
2 X 3W
5V2
6V
13V
5
AN7523N
FOR ITV ONLY
-
7902
*
6V
16 ohm
*
*
1u
1V4
5V2
3V8
1V4
0V4
A4
MONO OUTPUT
STEREO OUTPUT
MONO
*
AUDIO_AMPLIFIER + MONO_SOUND_PROCESSING
11V
8
3V7
2901
F903
0246
3 Pin
5 PinAN7522N
A4
STEREO
1u
2904CH1+
2
CH1-
4
CH1-IN6
CH2+ 12
CH2- 10CH2-IN8
GN
DC
H1
3
GN
DC
H2
11
GN
DIN
P
7
ST
B
5
VC
C
1
VOL9
7901AN7522N
99011N
4148
6565
1
2
3
4
3551
10K
2948
100p
0251
EH-B
3907
3K3
BZ
X38
4-C
2V7
6908
330K
3909
3K3
3902
4921
2952
820p
820p
2951
2903
100p
2947
2908
10u
16V
2909
10u
F907
F908
F901
100K
3911
5
VCC
1
VOL9
7902AN7523N
CH1+
2
CH1-
4
CH1-IN6
GNDCH1
3
GNDINP
7 8
NC
STB
3901
1K
2950
100p
1u
2906
9565
330K
3910
9905
1n2907
15K
3905
Main_OutL
AmpOutL_Neg
AmpOutL+
TV_BUZZER
FILAMENT
Vaudio(Vaux)
ITV_Vbatt
+5V
Vaux
Vaudio (Vaux)
VOLUME
+5V
AmpOutR_Pos
AmpOutR+
AmpOutR_Neg
Main_OutR
AmpOutL_Pos
3139 123 5596.1CL 36532044_006.eps
200603
L
R
F901
0.5V / div AC1ms / div
0.5V / div AC1ms / div
F903 F908F907
0.5V / div AC1ms / div
0.5V / div AC1ms / div
F905
0,5V / div AC1ms / div
F906
0,5V / div AC1ms / div
-
20L03.1L AA 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Font I/O + Front Control + Headphone
B
C
D
E
F
A
B
C
D
E
F
0218-A C10218-B B10218-C B10232 E40239 B60259 E80277-A B10277-B B11181 A21182 B21183 C21184 A41185 B4
1603
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
A
4692
1600 B91601 B91602 B81603 B81604 B81606 B71681 E91981 E31982 F32181 A32182 B32183 C32185 B22186 C22691 D92693 F72694 F72695 F82696 F8
1182
2981 E22982 E32983 F22984 F33181 A23182 A23183 B23184 B33185 C23186 C33681 A93682 B93683 A73684 A73685 A83686 A83687 A93688 B93689 B63691 D83692 D73693 D93694 D83695 C73981 E23982 F24692 D74694 F64695 C84698 C84699 C94981 E24982 E24983 F24984 F26181 A36691 D76692 D89181 B39683 A79694 D79982 E2
3687
2K2
3186
47K
F691
3692
3
4
5
RE
S
A6
DVD Eject
2
3
3691
330R
0232
3183
150R
2696
200R
3688
5
100u
2983
1604
3
02391
2
47K
3184
7
8
9
4698
11841
6691
LTL-10224WHCR
RES
HEADPHONE
TO 1121
*
SOCKET
YESNO
RE
S
R
A4
FRONT CINCH
OF
0R
* FOR ITV ONLY
OF
A4
*
TO 1124
FRONT CONTROL
ONLY
volume+
TO
A6
A6
A6
ITEM
INTERF.
FOR MTV
YES
TO
volume-
RES
FRONT
02180277
MONO STEREO
NO
channel+
PANEL
HEADPHONE
POWER channel-
RE
S
RE
S
RE
S
L
*
FOR ITV ONLY
MONO SET
A4
*
USA
*
RE
S
FRONT IO + FRONT CONTROL + HEADPHONE
RE
S
For Engg Purpose Only
RE
S
RE
S
TS
RE
S
V
*
1010 OF
RE
S
RE
S
16811
2
0218-C
1
2
3
1600
3682
2695
1181
2694
2185
220R
3693
3689
2183
330p
BZ
X79
-C6V
8
6181
4984
4983
9683
9694
1982
2982
470p
0218-A
0218-B
4
5
6
9982
2984
470p
1
2
3
4
5
6
7
8
9
1981
3181
75R
1606
2691
100u
2693
3185
150R
3685
200R
1185
1
2
3
4
5
6
02591
2
3
4
1183
4981
4982
4699
*
3684
3K3
4695
4694
TSOP18366692
2GND
1OUT
3VS
3182
100R
1602
22p
2181
120R
3981
369591
81
3681
1K0
3694
4K7
2981
100u
120R
3982
330p
2182
2186
3686
430R
3683
120R
16010277-B
IR_OUT
IR
IR
+3V3B
0277-A
+5VS
AmpOutL+
AmpOutR+
LED
LED_OUT
KEYBOARD
AmpOutL_Pos
AmpOutR_Pos
+3V3A
3139 123 5596.1CL 36532044_007.eps
200603
F691
1V / div AC2ms / div
-
Circuit Diagrams and PWB Layouts 21L03.1L AA 7.
Mono Carrier: Rear I/O Cinch
E
F
G
A
B
C
D
E
F
G
0223-