Diagramasde.com 21PT6341_44 Ch… · EN 2 1. L03.1L AA Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Index

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

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 Ω / 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.

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

CL 36532044_021.eps020603

CRT PANEL

A6

A7

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

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

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

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


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


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

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


F310


F407

100V / div DC20µs/div.

76417493

6491

7494

F425

5V / div AC20µs / div.

F446


F448


F449


F461

20V / div DC5ms / div.

F481

0,5V / div DC20µs / div.

F491


F492

2V / div DC20µms / div.

F493


F494


F510


F603


F604


F605


F301


F302


F303


F642

0.5V / div DC20µs / div.

F643

0,5V / div DC20µs / div.

F691

1V / div AC2ms / div.

F901

0.5V / div AC1ms / div.


F903

F905

0,5V / div AC1ms / div.

F906

0,5V / div AC1ms / div.

F907


F908


I211


I461

0.5V / div DC5ms / div.

I462


I465

1V / div AC5ms / div.

I533


I830


I836


I847


I848


I514


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


I514


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


F461

20V / div DC5ms / div

100V / div DC20µs/div

F448


F446


F425

5V / div AC20µs / div

I461

0.5V / div DC5ms / div

I462


I465

1V / div AC5ms / div


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


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


F494


F603


F493


F643

0,5V / div DC20µs / div

F492

2V / div DC20µms / div

F642

0.5V / div DC20µs / div

F604


F491


F605



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


I847 I848



I830



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


F903 F908F907



F905

0,5V / div AC1ms / div

F906

0,5V / div AC1ms / div


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


Mono Carrier: Rear I/O Cinch

E

F

G

A

B

C

D

E

F

G

0223-

Documents

Diagramasde.com 21PT6341_44 Ch… · EN 2 1. L03.1L AA Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Index