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Colour Television

Chassis

L03.1L
AA

CL 36532044_000.eps 020603

Contents
1. 2. 3. 4. 5. 6.

Page

7.

8. 9.

10. 11.

Technical Specifications, Connections, and Chassis Overview 2 Safety Instructions, Warnings, and Notes 4 Directions for Use 5 Mechanical Instructions 6 Service Modes, Error Codes, and Fault Finding 7 Block Diagrams, Testpoint Overviews, and Waveforms Block Diagram 11 I2C and Supply Voltage Overview 12 Testpoint Overview 13 Circuit Diagrams and PWB Layouts Diagram Mono Carrier: Power Supply (A1) 14 Mono Carrier: Deflection (A2) 15 Mono Carrier: Tuner IF (A3) 16 Mono Carrier: Video Processing (A4) 17 Mono Carrier: Audio Processing (Stereo + SAP) (A5) 18 Mono Carrier: Audio Amplifier + Mono Sound Processing (A6) 19 Mono Carrier: Font I/O + Front Control + Headphone (A7) 20 Mono Carrier: Rear I/O Cinch (A8) 21 Mono Carrier: Diversity Table for Rear I/O Cinch 22 Mono Carrier: DVD Power Supply (Optional) (A9) 23 CRT Panel (B1) 31 Top Control Panel (E) 33 Alignments 35 Circuit Descriptions, List of Abbreviations, and IC Data Sheets43 Abbreviation List 37 IC Data Sheets 39 Spare Parts List 49 Revision List 53

PWB 24-30 21-24 21-24 21-24 21-24 21-24 21-24 21-24 21-24 21-24 32 33

© 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.

Published by JH 0564 TV Service

Printed in the Netherlands

Subject to modification

EN 3122 785 13901

EN 2

1.

L03.1L AA

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connections 1.3 Chassis Overview 1.2.2 Rear Connections

1.1
1.1.1

Technical Specifications
Reception Tuning system Colour systems PLL NTSC M PAL M PAL N Mono, or BTSC with SAP NTSC M PAL M PAL N 181 Presets/ Channels : Full-Cable : 45.75 MHz : 75 ohm (F type), Coax : : : : : : : : : :
75 Ohm ANT.

AVout

CVI

AV1 IN

V L R

Y U V

V L R

Sound systems A/V connections

MONITOR OUT

AV1 IN
CL36532044_020.eps 200603

Channel selections

Figure 1-2 Rear connections Monitor Out 1 - Video 2 - Audio 3 - Audio AV1 In (YUV) 1 -Y 2 -U 3 -V AV1 In 4 - Video 5 - Audio 6 - Audio

IF frequency Aerial input 1.1.2 Miscellaneous Audio output Mains voltage Mains frequency Ambient temperature Minimum air pressure Maximum humidity Power consumption Standby Power consumption

1 Vpp / 75 ohm L (0.5 Vrms / 1 kohm) R (0.5 Vrms / 1 kohm)

kq kq kq

: : : : : : : : : :

Mono: 3 W rms Stereo: 2 x 3 W rms 90 - 276 V (± 10 %) 50 / 60 Hz (± 5 %) + 5 to + 45 °C 60 kPa (=600 mBar) 90 % 36 W (14") to 50 W (21") <3W

0.7 Vpp / 75 ohm 0.7 Vpp / 75 ohm 0.7 Vpp / 75 ohm

jq jq jq

1 Vpp / 75 ohm L (0.5 Vrms / 10 kohm) R (0.5 V rms / 10 kohm)

jq jq jq

1.2
1.2.1

Connections
Front Connections and Front / Top Control
TOP CONTROL

P+ VPINSTALL/MENU

V+

INSTALL MENU

- VOLUME +

LED

IR LED VIDEO

AUDIO - VOLUME +

CHANNEL

CL36532044.019.eps 060603

Figure 1-1 Front connections Headphone 1 - Headphone, 3.5 mm 8 - 600 / 4 mW Audio / Video In 2 - Video 3 - Audio

rt

1 Vpp / 75 ohm Mono 0.2 V rms / 10 kohm

jq jq

Technical Specifications, Connections, and Chassis Overview 1.3 Chassis Overview

L03.1L AA

1.

EN 3

TOP CONTROL PANEL

E

B1

CRT PANEL

POWER SUPPLY LINE DEFLECTION TUNER IF VIDEO PROCESSING MAIN CHASSIS PANEL AUDIO PROCESSING (STEREO +SAP) AUDIO AMP + MONO SOUND PROC. FRONT I/O + FRONT CONTROL + HEADPHONE REAR I/O CINCH DVD POWER SUPPLY

A1 A2 A3 A4 A5 A6 A7 A8 A9
CL 36532044_021.eps 020603

Figure 1-3 Chassis overview

EN 4

2.

L03.1L AA

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Maintenance Instructions 2.3 Warnings 2.4 Notes 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.

2.1

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 h, 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.

2.3

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).

V

E_06532_007.eps 250304

Figure 2-1 Discharge picture tube · All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD w). 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
2.4.1

Notes
General · Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), 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 (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). 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

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:

·

·

Directions for Use
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. ·

L03.1L AA

3.

EN 5

·

·

· · · ·

·

·

­ 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.

2.4.3

Lead Free Solder Philips CE is going to produce lead-free sets (PBF) from 1.1.2005 onwards.

P

b

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

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 temperatureprofile, 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/support http://www.p4c.philips.com

EN 6

4.

L03.1L AA

Mechanical Instructions

4. Mechanical Instructions
Index of this chapter: 4.1 Rear Cover Removal 4.2 Service Position Main Panel 4.3 Rear Cover Mounting

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

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.

1 1

2

A

3

B
Figure 4-1 Service Position

CL 16532016_006.eps 220501

Service Modes, Error Codes, and Fault Finding

L03.1L AA

5.

EN 7

5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Problems and Solving Tips 5.4 ComPair 5.5 The Blinking LED Procedure 5.6 Protections 5.7 Repair Tips 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 SDAM Use 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 startup). Caution: Activating SDAM by temporarily connecting jumper wire 9257 to pin 4 of 7200 will override the +8Vprotection. 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.

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 TEST POINT Fxxx, Ixxx Fxxx, Ixxx Fxxx, Ixxx Fxxx, Ixxx Fxxx, Ixxx Fxxx, Ixxx CIRCUIT POWER SUPPLY Deflection TUNER & IF VIDEO PROCESSING AUDIO PROCESSING AUDIO AMPLIFIER + MONO SOUND PROCESSING FRONT IO + FRONT CONTROL + HEADPHONE DVD POWER SUPPLY CRT PANEL DIAGRAM A1 A2 A3 A4 A5 A6

Fxxx, Ixxx

A7

Fxxx, Ixxx Fxxx, Ixxx

A9 B1

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 SW Cluster Software name UOC type UOC Special Diversity Features

L L L L A A A B C D X . Y E R R X X X X X X X X X X X X X X X X X X X X X X X X X C O A T W G A L P K U H E U E T B N I O D A R I O N S E T M I R E T O N E E T R Y O

S X X X C L E A R > > > > > X X X ? 0

L3SLM1 L03LM1 x.y TDA9370 55K ROM Trinorma Size Mono L3SLM1 L03LM1 x.y TDA9377 55K ROM NTSC Mono Size L3SLS1 L03LS1 x.y TDA9370 55K ROM Trinorma Size BTSC SAP Stereo L3SLS1 L03LS1 x.y TDA9377 55K ROM NTSC BTSC Size SAP Stereo Abbreviations in Software name: L = Latam, M = Mono, S = Stereo.

CL 36532044_033.eps 130603

Figure 5-1 SDAM Menu · LLLL. This is the operation hours counter. It counts the normal operation hours, not the standby hours.

EN 8
·

5.

L03.1L AA

Service Modes, Error Codes, and Fault Finding
Colors not correct / unstable picture 1. 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 bright Increase / 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 text Decrease 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 picture Increase 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 enough Decrease 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.

· · · ·

· · · · · ·

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 nonDBX, 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 settings To store settings, leave the SDAM mode with the Standby button on the remote. How to exit Switch 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 reapplied). The error buffer is not cleared.

5.4
5.4.1

ComPair
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

5.3
5.3.1

Problems and Solving Tips
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 picture 1. 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.

Service Modes, Error Codes, and Fault Finding
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

L03.1L AA

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EN 9

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.

PC

VCR

Power 9V DC

I 2C

86532027_003.EPS 050898

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.

EN 10
5.4.8

5.

L03.1L AA

Service Modes, Error Codes, and Fault Finding
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).

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

Table 5-3 Error Code Table Diagra m A2 A2 A5 A4, A1 A4 A4 A3 B1

ERROR Device 0 1 2 3 4 5 6 7 8 9 10 11 Not applicable Not applicable Not applicable Not applicable TDA93XX I2C bus Not applicable Not applicable M24C16 Tuner Not applicable

Error description No Error X-Ray Protection (USA) Horizontal Protection Vertical Protection POR 3.3V / 8V Protection General I2C bus error E/W Protection (Large Screen) NVM I2C identification error Tuner I2C identification error Black current loop protection

Check item 7421, 7422, 7423 7461, 7462, 7463, 7464, 7465, 7466 7200, 7541, 7491, 7493, 7496 7200, 3604, 3605 7641, 3641, 3642, 3643 1000, 3003, 3004 3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, 7314, 7315, 7316, 7317, 7318, CRT -

AN5891K & AN5829S Tone control & Audio processor I2C identification error 7821 (tone IC), 7841 (Stereo/Sap)

12 13 14

Not applicable Not applicable Not applicable

MAP I2C identification error (USA) VC I2C identification error (Eu) DVD I2C identification error

-

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.

5.7

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

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.

Block Diagrams, Testpoint Overviews, and Waveforms

L03.1L AA

6.

11

6. Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram
A7
V
FRONT I/O STEREO

A8
1184 1 1121 1

REAR I/O

A5
AV1
V

AUDIO PROCESSING (STEREO + SAP) (FOR STEREO SETS ONLY)

A6 AUDIO AMPLIFIER
7821 AN5891K 7901 AN7522N (STEREO) 7902 AN7523N (MONO)

A7

FRONT CONTROL

A4 CONTROL

+3.3V

MONO

V 1 1185 6 1124 6 2 4 R 3 4

7841 AN5829S 1 L1_IN

6692 TSOP1836 1

F691

IR 6691

5601 5603 5602 7200-B TDA93XX 54 61 56 11
IR LED WP +3V3

7641 M24C04 EEPROM 8 (NVM) 7 6 ERR 5 9 3601 SDA SCL
F642

+3.3V

L 2 R 3

L

L

A5 A4
R1_IN

L1_IN

I848

I830

F905

2

21

L_OUT

3

12

Main_OutL

6 8

2
F906

0280 L+ 4
L-

+3V3

LED

67 11

A5

A8 R1_IN

3

MATRIX SWITCH

22
I847

R_OUT

22

SURR TONE

15
I836

Main_OutR

4
F907

5 1

L

LOCAL KEYBOARD CHANNEL + / VOLUME + / DVD EJECT POWER (USA only) 0239

IIC BUS I/O PORTS

3602 3 2 3605 3604

3643

3642 SDA SCL

A4

VOLUME

9 1

10
F908

R-

KEYBOARD

R2_IN 7101

24 R_OUT

Vaux/Vaudio

12

R+ 2

R

OR

8

A3 A5

F643

CVBS_TER_OUT

A4

7161, 7162 SWITCH SY_CVBS_IN

A8

L2_IN

23

L_OUT

A8

OR

MONITOR OUTPUT

V L-OUT

VST PWMDAC ROM RAM

ERR 6

5 6 7 1 63

Pvv_ADJ A1 ITV_CLOCK A4 N.C. ITV_POR A4 N.C. Std_Con A1 STATUS 2 A8 SEL_AV1_AV2 A8

SEL_AV1_AV2

A4
L

A4
STEREO + SAP DEMODULATOR
19 18 3842 3843 3828 3827 14 13

A5
9 11 STATUS2

A7
L+ LRL+ LRR+

HEADPHONE

E

TOP CONTROL

R

R-OUT

A4

14

A5

10 6
2 3 4 5

LOCAL KEYBOARD CHANNEL + / VOLUME + / -

1010 2

1/10 PAGES MEMORY TELE TEXT/CC + OSD

64

5
SDA SCL

4 SDAM 9257 60
57

VOLUME A6

V

G-SC1_IN_Y_IN

SVHS (OPT.) 1

4

C-IN

ERR 4

ERR 4

R+

A4

A4
MONO

L

B-SC1_IN_U_IN

A4
AV2

V L R L2-IN R2-IN

R-SC1_IN_V_IN R

A5 A5

L_OUT

A8

SPEAKER 2 X 5W 16 Ohm 2 X 3W 8 Ohm 2 X 1W 8 Ohm

YUV INPUT

CVBS SYNC

POR A4 N.C. (ITV)
1621 12MHz

CPU

58

A3 TUNER IF
VT_SUPPLY

9282

A4 IF, VIDEO
VT_SUPPLY_A A2 CVBS_TER_OUT A8 AM_FM_MONO +8VD 9 VT
F003

B1 CRT
7313 7314 R AUDIO CARRIER FILTER 5201 VIDEO PLL DEMOD. VIDEO AMPLIFIER 38 7201 3205 1201
4.5MHz

+160V

5002 +5V 1000 UV1336 6, 7 2

6001 BZX79-C33

3313
F301

1001

7200-A TDA93XX VIF_1 VIF_2 23 24 27 VIDEO IF AGC

7200-C TDA93XX OSD 40 I/O SWITCHING RGB MATRIX RGB INSERT BLACK STRETCH WHITE STRETCH 46 47 48 45 R G B RGB CONTROL OSD/TEXT/CC INSERT BLUE STRETCH WHITE-P. ADJ 50 FRAME_OUT 51 52 53 3619 F603 3620 F604 3621 F605 RED GREEN BLUE 1622 1 2 3 1300 1 2 3
F303 F302

3301 7315 7316 G 3305
F309

0165
R G
F310

AQUADAG

TV TUNER
ERR 10

IF

11

7 9 3
4
R G B

B

5 3003

4

AGC 1 TUNER_AGC

SOUND FM-DEMOD. DE-EMPH.

AUDIO SWITCH 35

SOUND AMPL. + AVL

44

Y-DELAY +8V

Y

7317 7318 B

3309

CRT (9P)
6 8

5

A8 C-IN A8 SY-CVBS-IN
7202

43 42

VIDEO FILTERS VIDEO IDENT PAL/NTSC DECODER R-Y B-Y BASE BAND DELAY U V

A4 SDA
3004

49

BEAM-LIMIT A2

4 5 6

4 5 6 7 8 +160 V 3418 6318 VG2
EHT

25kV

A4 SCL
1003 1 SDA COMPAIR CONNECTOR 2 SCL 3

(MONO)

A8 L1_IN

3203

A8

R_SC1_IN_V_IN G_SC1_IN_Y_IN B_SC1_IN_U_IN FBL_SC1_IN

A2

A2
+160 V
FILAMENT

7 8

A2

A9 DVD POWER SUPPLY (optional)
DVD_SUPPLY 5571

A4 SYNC.
7571 L4978
F567

A2 DEFLECTION
Hflybk

1572 1 3 TO MPEG CARD (optional) 7200-D TDA93XX 34

LINE
5445 3424 1 F407
6422

A1
3 2

5

Vcc

OUT

4

5572 +8V-DVD 6571

5574

EHT

CONTROL 1

EHT FOCUS

5573
F566

-12V

5

7570 SI2306D
1

VIDEO INTERNAL 1571 1 4 TO DVD ENGINE (optional) 7422 H H/V SYNC SEPERATOR V H-OSC +PLL 7580 ENERGIZING CIRCUIT (optional) 5570 -12V 6423 6570 6563 5562 6562 6561
F540 I553

5461 7423 H-DRIVE 2nd LOOP H-SHIFT 33
H-DRIVE
I462

7421 BUT11APX

2423

7 VG2 2

+12V-DVD

F568

VTsupply-A

3571

5575

A3

F425

FOCUS
F422

VG2 EHT

10 3447

A1 A4 A4

A1 POWER SUPPLY
Degaussing Coil

0212 3
3504

3425
Vaux/Vaudio

4 1

1515

6408 MAINSUPPLY 3403 6407

0221 1 2 HOR. DEFL. COIL 9 5401 3402 8

EHT 0 3451 2455 6451 6452 BEAMLIMIT

t
MAINS 0211 SWITCH 1500 T4E 0231 (NOT USA) 3527 3506 7520 TEA1506
DRAIN I505 DRIVER DC

2 6504
AC F510

A1

5500

DVD-SUPPLY (OPTIONAL)

A2 A9
FILAMENT

2406

5520 1 8 13 12

3448

6447 3459

F449

+160V
F448

2503

2

5563 MAIN SUPPLY
I461

VT_SUPPLY A3 -12V

3445 3443

6446

FRAME
22 V-DRVE + GEOMETRY
EHT 0

14 11 9 7 3523 3525 3522
G
I533

7521
D

7464 5

3
S
I514

10

5560

6560

F542

V-DRIVE V-DRIVE +
I462

6444 3444 3446 6463

F446

F461

FILAMENT A4

2 6520 7523 6

Vcc

SENSE

5 3549 3526 6522 6 9 7540, 6540 REFERENCE CIRCUIT 4 1 7515 TCET1103 3 HOT GROUND 2 COLD GROUND 7541 STANDBY CIRCUIT +3V3B 3544 7451 3543

Vaux/Vaudio

A2

21

3463 7461 7462

7466 3470 7465 7463 4

DEMAG CTRL

A2
3549 PW-ADJ

36

CONTROL IC
3528

2528

A4
EHT

A2
Std_Con

EW + GEOMETRY

20

N.C.

3465

I468

0222 1 3464 -12V 3474 2 VERT. DEFL. COIL

3475 FRAME OUT A4

A4

CL 36532044_030.eps 190603

Block Diagrams, Testpoint Overviews, and Waveforms

L03.1L AA

6.

12

I2C and Supply Voltage Overview
B1
CRT

EHT

A9 DVD POWER SUPPLY (optional)
DVD_SUPPLY 5571
5

FOCUS 7571 L4978
Vcc OUT 4

5572 +8V-DVD +8V-DVD 6571

F567

1572 1 3 TO MPEG CARD (optional) 1300 7 8

VG2

5574

3

2

CONTROL 1

5573
F566

5

160 V FILAMENT

7570 SI2306D
1

+12V-DVD

F568

1571 1 4 TO DVD ENGINE (optional)

VTsupply-A

3571

5575

A3

TUNER IF

+5V

+5V

VT supply

A2 DEFLECTION
LINE
5441
-12V

VT supply

B1 A4
EHT EHT FOCUS
6422

VIDEO PROCESSING

1622 7

9282

160VD FILAMENT

VT supply-A

VT Supply-A 8 Vaux/Vaudio 2x

3424
2423

1 7

5461 7423 H DRIVE 7422

7421 BUT11APX

VG2 2 1 7493 3

3494 +3V3

A5

AUDIO PROCESSING

F425

+5V

5841

7 - 7841

A1

POWER SUPPLY

0212 3
3504

Degaussing Coil

4 1

1515

7580 ENERGIZING CIRCUIT (optional) 5570 6570 6563 5562 6562 6561
F540 I553

A4
F422

FOCUS 10 3447

VG2 EHT EHT 0

Vaux/Vaudio

A1
6491

4491 +3V3A 1x A2

-12V
Vaux/Vaudio

+ 8V

5821 23 - 7821

t
MAINS 0211 SWITCH 1500 T4E 0231 (NOT USA)
DC

2 6504
AC F510

3425 6408 3403 6463 6407

0221 1 2 HOR. DEFL. COIL 9 5401 3402 8

A4 A4
In

3451 2455

6451 6452 BEAMLIMIT

A1

5500

DVD-SUPPLY (OPTIONAL)
FILAMENT

5520 1 8 13 12

A6
3495 +5V 2x 1x

AUDIO AMPLIFIER

2406

2503

2

5563 MAIN SUPPLY

3448

6447 3459

F449

FILAMENT +160V VT_SUPPLY 1x 2x 3496

7494

Vaux/Vaudio

1 - 7901 or 1 - 7902 + 5V

+ 5V

3527 3506 7520 TEA1507
DRAIN I505 DRIVER

3445 3443

6446

F448

3 7521 COLD GROUND
D G
I533

FRAME
5560 6560
F542

-12V
F446

7464 5

3497

FILAMENT

FILAMENT

14 11 9 7 3523 3525 3522

6444 3444 3446 6463

FILAMENT

S

10
I514

Vaux/Vaudio

2 6520 7523 6

Vcc

SENSE

5 3549 3526 6520 6 9 7540, 6540 REFERENCE CIRCUIT 3544 4 1 7515 TCET1103 3 HOT GROUND 2 7541 STANDBY CIRCUIT 3543 3549 PW_ADJ

1x 2x

V DRIVE-

F461

2x 2x

6492

A4
V DRIVE7461

3463 7462

7466 3470 7465 7463 4

A7
4379 7496 3493 +8V 1x 1x 7491 1x 5482 +8VD

AUDIO FRONT I/O

DEMAG CTRL VCC

+ 3V3A

4698

+3V3B 3693 3 - 6692

CONTROL IC
3528

2528

A4
7451 EHT +3V3B -12V Std_Con

A2

3465 3464 3474

0222 1 2 VERT. DEFL. COIL VTSupply-A 3491

+ 3V3B

A4

A8
3492

REAR I/O CINCH

+8V

+8V 4163

+8VA

-12V, FILAMENT,
Vaux/Vaudio

VT supply-A, VT supply, FILAMENT

ERROR CODE LIST

Error 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Device Not applicable Not applicable Not applicable Not applicable AN5891K & AN5829S TDA93XX I2C bus Not applicable Not applicable M24C16 Tuner Not applicable Not applicable Not applicable Not applicable

Error description No Error X-Ray Protection (USA) Horizontal Protection Vertical Protection Tone control & Audio processor I2C identification error POR 3.3V / 8V Protection General I2C bus error E/W Protection (Large Screen) NVM I2C identification error Tuner I2C identification error Black current loop protection MAP I2C identification error (USA) VC I2C identification error (Eu) DVD I2C identification error

7421, 7422, 7423 7461, 7462, 7463, 7464, 7465, 7466 7821 (tone IC), 7841 (Stereo/Sap) 7200, 7541, 7491, 7493, 7496 7200, 3604, 3605 7641, 3641, 3642, 3643 1000, 3003, 3004 3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, 7314, 7315, 7316, 7317, 7318, CRT -

Check item

Diagram A2 A2 A5 A4, A1 A4 A4 A3 B1 -

I2C BUS INTERCONNECTION DIAGRAM

A7 CONTROL
+3.3V +3.3V
ERR 6

A3
3602 3601

TUNER IF

A5

AUDIO PROCESSING (only for stereo sets)

7200-B

SET 3 PROCESSOR 2 PART OF VIDEOPROCESSOR TDA9370 11

SDA 3605

SDA SCL
3003 3004 3643 3642

SDA SCL
3828 3842 3827 3843

SCL

3604

+3.3V

5 3644 WP
7641

6

5 4 1000

14

13
7821

19

41
7841

M24C04 7 EEPROM (NVM)
ERR 9

TUNER UV1336
ERR 10

AN5891K AUDIO PROC.
ERR 4

AN5829S AUDIO DECODER
ERR 4

1003 1 2

FOR COMPAIR ONLY

3

CL 36532044_032.eps 160603

Block Diagrams, Testpoint Overviews, and Waveforms

L03.1L AA

6.

13

Testpoint Overview
MONO CARRIER TRACK SIDE VIEW
F492 F642

1003 3642 7641 NVM
F643

CRT TRACK SIDE VIEW
3

6491
F494 A2
K A1

3643
5 4 8 1

Compair conn. 1
11 1

7496
F491
E C B

7493 In Out
F493

F003
1

Tuner 1000
F309 G

7200 Video Processor

32

7494

C B F

F494
64

9 8
33

10

11 12 3
F310 B

I211

44

7 F308 R 6 4

0246
F907 F908 F909 F906
5 1

7901 7902 Audio 12 Output
8

1622
1

5

1302
F603 F604

3488
F481

1300
8

3

2 1

F301 F302 F303

T et CR ock S

3905
F903

3903
F901
1

I836
13 15

F605
24

Audio Demodulator
12 1

7821
I830
12 13

7841
21 22 24 1

F605

F642

F643

Audio Processor

I847 I848

0222
F461
2 1

Frame Output
6570
I553

1V / div DC 20µs / div. F691

0.5V / div DC 20µs / div. F901

0,5V / div DC 20µs / div. F903

6560

I542 I540

I461

I462

7464
B C E B C E

6562
8 9 10 12 13

2405
+

7462
F422 F446

E B E B C C

7461 7463
EBC

6444
I465

Power Trafo 5520
7 6 5 3 2 1

7465

1V / div AC 2ms / div. F905

0.5V / div AC 1ms / div. F906

0.5V / div AC 1ms / div. F907

F510 F448
6 7 2

6692

6446

IRRCR
1

I514 I505
7 21

4 D S 3

5

F691

I533

G

Supply Output

5441 LOT

8 9

0,5V / div AC 1ms / div. F908

0,5V / div AC 1ms / div. I211

0.5V / div AC 1ms / div. I461

7520
8 14 1

10

Supply Control
7421

Line Output
C

6447
F449
0.5V / div AC 1ms / div. I462 1V / div DC 1ms / div. I465 I505 =17V8 DC 0.5V / div DC 5ms / div.

Mains Switch COLD HOT LIVE PART HOT

F407
B E

F425

COLD

0.5V / div DC 5ms / div.

1V / div AC 5ms / div.

F003

F301

F302

F303

F308

F309

F310

F407

F425

F446

F448

I514

I533

I830

200mV / div AC 20µs / div. F449

1V / div DC 20µs / div. F461

1V / div DC 20µs / div. F481

1V / div DC 20µs / div. F491

50V / div DC 20µs / div. F492

50V / div DC 20µs / div. F493

50V / div DC 20µs / div. F494

100V / div DC 20µs/div. F510

5V / div AC 20µs / div.

2V / div DC 20µs / div. F603

10V / div DC 20µs / div. F604

100V / div DC 5µs / div. I836

2V / div DC 5µs / div. I847

1V / div DC 1ms / div. I848

F422 97V DC F540 97V DC F542 13V5 DC 50V / div DC 20µs / div. 20V / div DC 5ms / div. 0,5V / div DC 20µs / div. 2V / div DC 20µs / div. 2V / div DC 20µms / div. 2V / div DC 20µs / div. 2V / div DC 20µs / div. 50V / div DC 5µs / div. 1V / div DC 20µs / div. 1V / div DC 20µs / div. 1V / div DC 1ms / div. 0.5V / div DC 1ms / div. 0.5V / div DC 1ms / div. CL 36532044_031.eps 200603

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

14

7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply

1

2

3

4

5

6

7

8
Region Size 0231 2503 3523 3526 3547 5520 6561 7521 9500 9501 ITEM 14"

9
LATAM 15RF/20"/21" 14"MEXICO

10
15RF/20"/21"Mexico 21RF 150u/400V NFR25 47R 1W/0R15 330K S359B4-09 BYW76-RAS15/10 STP7NK80ZFP JUMP JUMP 22K -

11

POWER SUPPLY
RES
For Relay Cct.
-12V 1515 G5P

A
9503 3

*
+t 10R - PTC

3503

3504

*
6500 6501

Rs

+t

1

7580

2

BC847B

*

DEGAUSSING COIL

Rp

*
2580

1N4148

3580

47K 6580

SWITCH SWITCH 100u/400V 100u/400V 150u/400V NFR25 68R NFR25 47R NFR25 68R 1W/0R18 1W/0R15 1W/0R18 330K 330K 330K SS28010-06 SS28010-06 S359B4-09 BYW76-RAS15/10 STP5NK80ZFP STP7NK80ZFP STP5NK90ZFP JUMP JUMP LATAM NAFTA NO YES NO C914 YES NO YES

A

F510

* *
3508

F540 97V DC F542 13V5 DC I505 17V8 DC

0212 1

B

2

1N5062 (COL)

1N5062 (COL)

F510

*
1500 PFC5000 1501 PFC5000 1

* * *
RES 5500 4

"$"
6504

*
1520 2515

2505 YES 3503 NO 3504 YES 5500 DMF2820 5502 NO 9503 YES Relay Cct. NO

50V / div DC 5µs / div I514

B
I533

1M5

2504

2507

2502

*
6 0211 2 1 2 1

9500 5

*

9502 RES 3502 3 4

*

0231 ESB92 2 DMF-2820 5501 1

1N5062 (COL)

1N5062 (COL)

RES

2n2

GBU8K 6502

6503

5506 RES 9506 RES I553 5570 6570 STPS10L60D 2571 1570
T2.5AE 250V

4 3

T4E.250V
2500 470n

t

1n5

100V / div DC 5µs / div

2V / div DC 5µs / div
DVD_Supply (OPTIONAL)

3m3 16V

C

9501

2 1

3505

3M3

3500

For ITV ONLY

2584 220p 9520

220R

3509

6

*

1 303V 2 3 13 12 11 RES 1560
T1.8AE 250V

*

5520

V

10n

2570

MAINS 150 - 276 V SINGLE RANGE 90 - 276 V FULL RANGE

MAINS SWITCH

2

RES

3

*
L_GND

*

0213

6563 BYW29EX 6562 BYW76 6561

C

5562
DVD_Gnd

F540 5563 27u MainSupply

5502

4

2564

3582

3501

3M3

1 C914 6505 3510 BZX384-C22 3507 33K 7520 TEA1506T 17V8 (13V8) 2
Vcc SUPPLY MANAGEMENT

3

F542 5560 6560 SB340 2560 2n2

2562 2n2

5521

330K

47u

*

2522

DSP

330K
START-UP CURRENT SOURCE VALLEY VOLTAGE CONTRLLED OSCILLATOR Drain

7 14 302V 9515 RES 5515 7 0V 9 0V 3524 47K 2524 100n 3522 330K 3525 1K0 3527 2K2 302V

8 AudioSupplyGnd_A

22u

2521

I505

3

Gnd

8 10
START-UP Demag

*
2V6 G

7521 D S 0V 2585

1509 1508 1516
DVD_Gnd

2561

I514

4560 RES

FREQUENCY CONTROL

CURRENT SOURCE OVER TEMPERATURE PROTECTIOM LOGIC CONTROL CIRCUIT CURRENT SENSING Driver Sense

220R

2523

3549

1n8

2m2 16V

3506

470p

D

5 6

10 9

9560 JUMP

Vaux/Vaudio

D

E
BYD33D 2526 6520
1V3 6
Ctrl INPUT CONTROL CIRCUIT BURST DETECTOR

FOR ITV ONLY
ITV_Vbatt
BZX79-C9V1

1n

E

6521

6541

3550

1K5

82K

1n0

POWER-ON RESET

OUTPUT DRIVER

11 2V6

3523 RES

*

2525

BZX79-B6V8

6540

7523 BC857B 4V6

470p

2V9

MAXIMUM ON-TIME PROTECTION

OVER POWER PROTECTION

6V2 6V8 3546 6K8 PW_ADJ A4

3521

RES

7522 PDTC143ZT 3581 1K0 6522 BYD33D 2543 1n0 3519

F
3528 10K

2527 56p

0V

7515 TCET1103(G) 22V6 4

10K

I533

3548

15K 3544

6K8 3547

1 9V3

7540 7V7 BC547B 2540 15n

*

7451 BC857B

2452 82n 3452 820K

F
EHT A2 3456 47K

3454 470R

3453

8V3

100K

3 4V9

2

3541 7541 PDTC114ET 3V3 3V3

2453 4n7

2542

22u 50V

1K2 2520

3520

2528

10n

470n

3K3

3545 2K2

10K +3V3B

G

FOR MAINS 120V AC 170V (177V) 220V AC 309V (317V) ..V.. Normal Operation in " SERVICE MODE " (..V..) Standy Mode
"$"

9509 5509

HOT

COLD

3V3

Std_Con A4

G

HOT GROUND COLD GROUND

3139 123 5596.1

CL 36532044_001.eps 200603

0211 C1 0212 B1 0213 C5 0231 C2 1500 B2 1501 B3 1508 E7 1509 E7 1515 A7 1516 E7 1520 B7 1560 D7 1570 C8 2452 F11 2453 F10 2500 C3 2501 B5 2502 B5 2503 B6 2504 B6 2505 B2 2507 B6 2515 C7 2520 G2 2521 E2 2522 D6 2523 E6 2524 E5 2525 F5 2526 E2 2527 F1 2528 G6 2540 F9 2541 G9 2542 G7 2543 F6 2560 D8 2561 D9 2562 D9 2564 D10 2570 C9 2571 C8 2580 B7 2584 C6 2585 E6 3452 F11 3453 F10 3454 F9 3456 F11 3500 C2 3501 D2 3502 C4 3503 B4 3504 B4 3505 C4 3506 D4 3507 D2 3508 B4 3509 C3 3510 D3 3519 F6 3520 G2 3521 F2 3522 E5 3523 E5 3524 E5 3525 E5 3526 E6 3527 D5 3528 F1 3541 F8 3542 E9 3543 E10 3544 F9 3545 G8 3546 F11 3547 F9 3548 F9 3549 E9 3550 E10 3580 A7 3581 F6 3582 D10 4560 D8 5500 B4 5501 C4 5502 D4 5506 C7 5509 G4 5515 E5

5520 C7 5521 D6 5560 D8 5562 C9 5563 C10 5570 C7 6500 B5 6501 B5 6502 B5 6503 B5 6504 B5 6505 D2 6520 E2 6521 E6 6522 F6 6540 F8 6541 E9 6560 D8 6561 D9 6562 C9 6563 C9 6570 C8 6580 A8 7451 F10 7515 F7 7520 D2 7521 E6 7522 F6 7523 F1 7540 F9 7541 G8 7580 A7 9500 B2 9501 C2 9502 C4 9503 A6 9506 C7 9509 G4 9515 E5 9520 D6 9560 D7

3

1

2

4

2505

2501

2n2

2n2

150u 400V 2503

1N4148

3526

47u

3542

2541

1

2

3

4

5

6

7

8

10n

9

3543

*

10

11

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

15

Mono Carrier: Deflection

1

2

3

4

5

6

7
Region Size Tube 14" LPD 15RF CPT

8
LATAM 20" LPD 21"FSQ LPD

9
Region Size Tube 14" LPD 15RF CPT

10
LATAM 20" LPD 21"FSQ LPD

DEFLECTION
Line Deflection
Hflybk 3422 330K
6422

LINE DEFLECTION 2406 2408 2423 2424 2441 2452 2453 2457 3402 3441 3442 3447 3451 3455 3456 3460 3646 5401 5402 5441 360n/250V 680n/250V 560n/250V 560n/250V 13n/1K6V 13n/1K6V 15n/1K6V 15n/1K6V 1n/2KV 1n5/2KV 1n/2Kv 22n 15n 15n 33n 10n 22n 100n 2n2 470p/500V NFR25H 2K2 NFR25H 2K2 10K 47K 10K 56K 150K 150K 150K 100K 100K 220K 100K 220K 8K2 680R 1K8 8K2 2K2 470R 2K2 2K2 47K 100K 47K 47K 47K 1M 1M 68u/LHL08 33u/LHL08 00511/33u 00425/82u JF0501-19255 JF0501-19255 JF0501-19255 JF0501-19276 3449 33K 3447 100K 7440 BF423
3442 BAS316 3441
120K

LINE DEFLECTION 3473 3474 4R7 4R7 2R2 3R9 3R3 3R9 3R3 3R3

94V4
BYD33M 6421 BYW76 2423

10n 2424

0V3

820p

A

A4

LOT 5441 1142

A

F425 -12V 3424 22R
2429 2471 220n RES

7421 BUT11APX

EHT

TO PICTURE TUBE

2420 100n
BAS316

2421 3426 100n 47R

FOCUS VG2

TO CRT PANEL

3428

B
HDRIVE A4 2427 100n

3V3

0V 7422 BC817-25 0V
3432 1K

F407
68R

8 1 6
9445 RES 3445 1R

B
VTSupply EHTO EHT 2441 33n A4 A1

3

5421

6

HORIZONTAL DEFLECTION 0221 COIL VH 1 4

3450 33K

9

7423 BC807-25 3V3 1 PSD10-204B 5

10 7 3

Filament A2

6423 1N4004 3425 82R
2428 47u

3430 1K0

5V4

2473

470p 6445

C

Vaudio

8K2

RES

5V7

2 4 9407 2407 3443
2406 470n 2408 12n

6451
10u 16V

3455 2K2

Beam_Limit A4

C

BAS316

MainSupplyGND 3460 100K F446 FILAMENT A4

F422 MainSupply 3403 100p 6407 BAV21 6408
3402 2K2

6452 BAS316

5

1R 3444

6444 EGP20DL

1K
2405 47u

F448 1R 6446 RGP10D 6447 RGP10D
DC12 5401 9446 RES 2444 5402 470u 2446 33u 10u

D

BAV21 4405

-12V

9448 RES 3448
9402 RES

D
160VD
2447 470u

1R
3446 1R

2457 470p

F449

Frame Deflection E
FILAMENT A2 3468
100u 50V

6463 RGP10D 7464 BD135 0V9
2465 BAS316 3469

1463

20V6
160V

6462 RGP10D

2460 56n 6461 RGP10D 9505 5505

E

330R
6464 68R

I461 VDriveA4
3461 2K2

2K2

1n

0V5

BC857B
220R 3470 3471 2R2

3475 7466 BC847B I465 2464 470p 0V4
220R 3472 3478 1R0

Frame_OUT

15n

0V9

2470

7461 BC857B 0V8

1V5

7462

-12V

10K 3476 8K2 F461

F407

F422 97VDC

F425

F446

F448

F449

A4

RES
1462

F
3462

0V9 12V8
1M

0V6

F
100V / div DC 20µs/div VERTICAL DEFLECTION COIL 5V / div AC 20µs / div 2V / div DC 20µs / div 10V / div DC 20µs / div 50V / div DC 20µs / div

12V2 3465 1K 3466 1K

12V2 7463 BC546B 12V8

0V

7465 BD136

0222 1 2

-12V

12V2

Frame_FB VH

VDrive+

G

3464 2K2
3477 2472 3R3 3473 3R3 3474

F461

I461

I462

I465

A4 I462

G

20V / div DC 5ms / div

0.5V / div DC 5ms / div

0.5V / div DC 5ms / div

1V / div AC 5ms / div CL 36532044_002.eps 200603

3139 123 5596.1

0221 B4 0222 F6 1462 F6 1463 E7 2405 D3 2406 D4 2407 C4 2408 D4 2420 B2 2421 B2 2423 A4 2424 A4 2426 B1 2427 B1 2428 C1 2429 B1 2441 C9 2444 D8 2446 D8 2447 D7 2455 C8 2457 D7 2460 E5 2461 E1 2462 E3 2463 E3 2464 F3 2465 E5 2470 F5 2471 B1 2472 G4 2473 C7 3402 D4 3403 D3 3422 A3 3424 A1 3425 C1 3426 B3 3428 B2 3430 C2 3432 C2 3439 C8 3440 C8 3441 C7 3442 C7 3443 C6 3444 D6 3445 B6 3446 D6 3447 B8 3448 D6 3449 B8 3450 B8 3451 C8 3455 C9 3459 C7 3460 C9 3461 F1 3462 F1 3463 E2 3464 G2 3465 F2 3466 F2 3468 E3 3469 E4 3470 F4 3471 F4 3472 F4 3473 G5 3474 G5 3475 F5 3476 F5 3477 G4 3478 F5 4405 D3 5401 D4 5402 D4 5421 B3 5441 A5 5505 F8 6407 D4 6408 D4 6421 A4 6422 A3 6423 C1 6426 B2 6444 D7 6445 C7 6446 D7 6447 D7 6451 C9

2426

6426

6452 C8 6453 C8 6460 E3 6461 E5 6462 E5 6463 E5 6464 E3 7421 A3 7422 B2 7423 C2 7440 C8 7461 F2 7462 F2 7463 F3 7464 E4 7465 F4 7466 F3 9402 D4 9407 C4 9445 B6 9446 E6 9448 D6 9505 F8

1n

BZX79-C33 3440

150K 6453

3459

33K 3439

120K

BAS316 2463

2461

3463

2462

1n 6460

10u

1

2

3

4

22n

3R3

5

6

7

8

3R3

2455

3451

9

10

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

16

Mono Carrier: Tuner IF

1

2

3

4

5

6

7

TUNER IF
+5V VTSupply

A

TUNER_AGC A4 +5V

3005 100R 3001

A
VTSupply_A

2005

220n

6001

470u 10V

1000 UV1336

BZX79-C33 2007

4K7 1 AGC 2 3 4 SDA A4 2 A4 SCL 3 EH-B 3004 100R 100R 1003 1 3003 5 TU 7 VS 9 VTS

B

F003 AS SCL SDA

1001 OFWG1984M 1 4 VIF_1 A4

TUNER
IF

B

11

0283 C7 0285 C7 1000 B3 1001 B6 1003 B1 2001 B2 2002 B3 2003 C3 2004 C3 2005 B5 2006 B1 2007 B5 3001 A2 3002 B2 3003 B2 3004 B2 3005 A1 4000 C4 4001 C2 5001 B5 5002 A4 5003 A4 6001 B5 9002 A4 9282 A4

5002

RES 9002

5003

RES 9282

2006

2001

3002

2002

100u

10n

22K

10u

5001

GND
2003 22p 2004
10 12 13 14 15

NC
6 8
200mV / div AC 20µs / div

820n

F003

2 3

5

VIF_2 A4

22p

0285

C
4001

4000

C
0283

3139 123 5596.1

CL 36532044_003.eps 200603

1

2

3

4

5

6

7

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

17

Mono Carrier: Video Processing

1

2

3
A5 A5

4
A4 A7 A4 +8V

5
A3,A5 A6 A3,A5 A7 A4 A4

6
A1 A8 A4 , A6 A7 A1 A8 A4 A8

7
A4

8
Vaudio (Vaux) +3V3A +8V

9
FILAMENT +3V3

10
WP A4 +3V3

11

VIDEO PROCESSING
3201

+3V3
LED POR SCL WP

+5V F491
ITV_DATA_OUT SEL_AV1_AV2 ITV_DATA_IN VTSupply_A

ITEM #

Mono 4n7

Stereo
2201

2K7
2202 820p 4n7

2V7

8V

3601 2K2 3602

10u 16V

2604

5V
4602 3491 2609 1n0 100R 4603 9286 4604 9604 3631 4491 56K 470u 10V

9201

+8VD
2203 100n

3203

1K0

100R

6V7 3V3 7201 BC847B

3V4 2K2 3618
SDAM 9257

7491 BC847B 3633

8V7

3494 3V3 680R A1
3493 10R 3479 10R

3495

33R 2493

3202

4606 RES

7202 BC847B

2K2 3603

BZX384-C5V6

4V A2 1 2 6491 3V3 BAV70
22u 25V 2492

2K2 I211 2602
10u 2205

1K0
3607 100R 100K 3608

9V3 13V4
220u 25V

7641 M24C04 NC E1 E2 SCL WC_ 2642

3V3 8
2641

CVBS_TER_OUT A8

5201 4u7 1 1201 TPS 4M5 I O G 2 3

2204 56p 3204

2V7

8K2
3492 22K 2494

3609 33p 10K
1621 12M 100R 3605

1 3 IN GND OUT 2

1N

3 3V3 6 7 3V3

NVM

270R

3205

100R

B

SDA

5 3V3

1n

3632

7493 L78L33

VCC

3644

100R

4K7 3641

A

3606 10K

2206

100p

5V7 12V

3496 10R 6492

3497

F492

F493

F494

390R

7496 BD135

6V3

7494 BC337-25

A

3206

2601

2206

470n

4n7

1K

+3V3 5601 5u6
3634 1K0

3643

82R

B
F642 SDA A4 SCL A4 F643

VSS 4

2603 33p
1V1 3V3 100R 3604

2207 TUNER_AGC A3
2208 100n

3207 390R
2V3 3V4 2V4 3V2 3V8 3V4 2V3 1V6 1V6 1V9 0V 0V 0V

5602
0V4 0V2 0V2 3V3 3V3 3V3 0V2 0V2 3V2 3V2 3V3

5u6 5u6

100n

1n0 3642 100R

3V3

3V3

5603
2606 100n 2607 100n 100n

2608

7200 TDA93XX 1V9 23 1V9 24

27

37

38

31

29

28

35

44

60

55

59

58

57

10 11

2

3

4

5 6 7 8

1 62 63 64

9

12

54

56

61

1u

0217 1 2 3V4 6V3 3645 1K0 4661 4
BZX79-C8V2

VIF_1 A3 A3 VIF_2 3208
470R 3209

2209 220n 4V 40

VISION-IF ALIGNMT-FREE PLL DEMOD AGC/AFC VIDEO AMP

DEEMPHASIS AUDIO SWITCH VOL CONTR CPU

I2C-BUS VST PWM-DAC I/O PORTS

1/10 PAGE MEMORY 3 FILAMENT SANDCASTLE A2 A4 Frame_OUT A4 F603 F604 RED 1

470R

2605

C

C

5 6 7

BAS316 6627

3V4 42 1V5 43

A8

VIDEO IDENT. VIDEO FILTERS

ROM/RAM

TXT/OSD/CC

C_IN

2211 1n

100R

220n

V

DISPLAY

D

6626

SY_CVBS_IN

3210

2210

TELETEXT CLOSED CAPTION ACQUISITION

BAS316 6628

BAS316 2612

VIDEO SWITCH

220u 16V

AGC CIRCUIT NARROW BAND PLL DEMODULATOR

6625

H

6V3

7601 PDTA114ET

A8

R GB

BL R
51 3V7 3619 52 3V6 470R 53 3V6 3621 49 3V1 470R 50 7V7
BAS316

D

1202 REFO

2212 220n

CONTR/BRIGHTN 2V3 13 0V2 32 PAL/SEC/NTSC DECODER BASE-BAND DELAY LINE LUMA DELAY PEAKING BLACK STRETCH

I211
3620 470R GREEN 2 BLUE 3 4 F605
6681

Y

G
OSD/TXT INSERT CCC

B

U
0V 30 0V 41 0V 18

WHITE-P ADJ

To 1300 of CRT PANEL
1V / div DC 1ms / div
160VD FILAMENT A2 1622

3624 1K0 BLK_IN

5 6 7

Y V
H/V SYNC SEP. H-OSC + PLL

R GB
10u 16V 2615 2616 1n0

E

+8VD 5482 10u
470u 10V 2482 1u0 2491

8V 39 8V 14 4V 19 5V 15

H-DRIVE 2nd LOOP H-SHIFT

V-DRIVE + EW GEOMETRY GEOMETRY

+8V

RGB/YUV INSERT RGB/YUV MATRIX SATURATION YUV/RGB/MATRIX

E
Frame_OUT A2

+5V

8

F642

F643

6624 BAS316

3V9

3V8

3V8

1V4

1V3

1V9

2V7

2V7

0V

0V8

3V2

3481
2643 220p 2484 100n 3646 1M0

1V

17

34

16

33

25

26

22

21

36

20

2V6

46

47

48

4V

45

Beam_Limit A2

2232

2489

2486

2485

2487

1M 3480

2488

100n

100n

2231

2233

F

3483

2490

4n7

2n2

22n

22n

A4 ITV_DATA_OUT A4 A4 A4 ITV_DATA_IN ITV_CLOCK

2 3

4u7

1u

1

2483 4u7

POR

2498 2u2

22n

0240

18K

0.5V / div DC 20µs / div

0,5V / div DC 20µs / div
3233 FBL_SC1_IN A8 +8V B_SC1_IN_U_IN G_SC1_IN_Y_IN A8 R_SC1_IN_V_IN A8 A8

F

3231 4 5 ITV_PORT 6
6481 3498 10K

3232 1K0

100R

2481 560R
9410 3410 3487 33K 3489 100R 1n0 3485 1K0 3488 3490 3K3 68K 10K

100p 3499 27K
BAS316 3482

A4 A4

EH-B Vaux +5VS
2495

3K3

TV_BUZZER

9240

G

F481
F481 7495 LE50CZ
SANDCASTLE

F491

F492

F493

F494

F603

F604

F605

G

OUT GND IN
22u 25V Hflybk +8V

A2

A2

FOR ITV ONLY

A4

A2

A2

0,5V / div DC 20µs / div

2V / div DC 20µs / div

2V / div DC 20µms / div

2V / div DC 20µs / div

2V / div DC 20µs / div

1V / div DC 20µs / div

1V / div DC 20µs / div

1V / div DC 20µs / div CL 36532044_004.eps 200603

3139 123 5596.1

0217 C10 0240 F2 1201 B2 1202 D1 1621 B4 1622 E10 2201 A2 2202 A3 2203 A2 2204 B2 2205 B3 2206 B4 2207 B2 2208 C2 2209 C2 2210 D2 2211 D1 2212 D2 2231 F6 2232 F6 2233 F7 2481 F3 2482 F2 2483 F2 2484 F2 2485 F3 2486 F3 2487 F4 2488 F5 2489 F5 2490 F6 2491 E1 2492 B9 2493 A9 2494 B7 2495 G1 2496 G4 2497 G5 2498 F2 2601 B4 2602 B5 2603 B5 2604 A5 2605 C7 2606 C7 2607 C7 2608 C8 2609 A6 2612 D8 2615 E7 2616 E8 2641 B11 2642 B10 2643 F2 3201 A3 3202 A2 3203 A4 3204 B2 3205 B3 3206 B3 3207 B3 3208 C2 3209 C2 3210 D2 3231 F7 3232 F8 3233 F8 3410 G5 3479 B8 3480 F4 3481 F3 3482 G3 3483 F4 3484 F5 3485 G5 3486 G5 3487 G6 3488 G4 3489 G6 3490 G4 3491 A7 3492 B7 3493 B8 3494 A8 3495 A9 3496 A10 3497 A10 3498 G3 3499 G3 3601 A5 3602 A5 3603 A5 3604 B5 3605 B5

3606 A5 3607 B6 3608 B6 3609 B7 3618 A5 3619 D7 3620 D8 3621 D7 3624 E9 3631 A7 3632 B7 3633 A7 3634 C8 3641 A11 3642 C10 3643 B11 3644 A10 3645 C9 3646 F2 4491 A9 4602 A7 4603 A7 4604 A6 4606 A4 4661 C9 5201 B2 5482 E1 5601 B8 5602 C8 5603 C8 6481 G3 6491 B9 6492 A10 6624 E9 6625 D10 6626 D8 6627 D8 6628 D8 6681 E8 7200 C2 7201 B3 7202 A4 7491 A7 7493 B9 7494 A10 7495 G2 7496 A8 7601 D9 7641 A10 9201 A3 9240 G1 9286 A6 9410 G5 9604 A6

+5V

AM_FM_MONO

KEYBOARD ITV_CLOCK RESERVED_A ITV_PORT RESERVED_B PW_ADJ

Std_Con ITV_MSG TV_BUZZER IR

L1_IN

VOLUME

SDA

1V

0V

1n0 2497

39K 3484 39K

2496

3486

A2 VDrive+

VDrive-

1K0

HDRIVE

1

2

3

4

5

EHTO

+8VD

+3V3

6

0V

STATUS2

7

8

9

10

+8V

11

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

18

Mono Carrier: Audio Processing (Stereo + SAP)

1

2

3

4

5

6

7

8

9

10

11

AUDIO PROCESSING (STEREO + SAP )
5821 +8V
2821 100u 2862 220p

10u

A
4848 RES 1821 1 2
4849

AUDIO SOUND PROCESSOR
2826

SOUND MULTIPLEX DECODER

A

2834 10u
2837 470n

4847

15n 2833 10u
2825 39n

3

2861 220p 4821 4822 2827 2843 1u0 2842 1u0 R_OUT L_OUT R1_IN L1_IN 33n A8 A8 A8

B
3825 2822 2K2 33n 1 4V1 5 4V1 4 4V1 6 4V1 21 4V1 23 8V

B

A4 , A8 2841 4u7 3841 180K BLD 17 3V 15 4V1 2844 2V2 I836 2V2 2 AUXL1 3 AUXR1 AUXR2 23 2V2 2855 1u 4 OFFCAN1 2u2 50V 2V2 2845 2V2 5 OFFCAN2 4u7 35V 2846 0V6 6 WB TIME 10u 16V 5V 7 Vcc 8 WB DET Lout 21 2V2 2856 1u PE 20 I848 3V3 3842 100R 3843 100R
2847 100u 2863 220p 10u 16V

PF1

PF2

PF3

PF4

VREF

3824

10n 2836
2K2

VCC

2835 20 4V1 4V1 18 4V1 4V1
3826 2K2

7821 AN5891K

7841 AN5829S 1V 1 AGC AUXL2 24 2V2 I847 R2_IN A8 22 2V2 4843 RES 4844 Main_OutR A6 Main_OutL A6 4845 L2_IN A8

BB RT RB RIN

TD

16 2V1

C

100n 4851 RES 2832 10u

19 22

C

SURR

AGC 4850 RES 2824 10u 1V1 2 24 8 9 AGC MODE LT LB AGC 4V1 3 LIN

TONE TONE

VOL
VCA

ROUT BAL SUPER BAS BAL LOUT

Rout

VOL

12

4V1

LEVEL SENSE CONTROL
BD 10 2V1

SDA

19

SDA A4 SCL A4

2K2 3822

220K 2823

10u

D

0V5 4V1 4V1

SCL

18

3V3

D

IIC BLOCK
SDA SCL GND

VD

2839

11 2V7

2848 330n 2849 22n 2850

2V3

GND

17 2857 47n 2858 1u 2859 1u 2860 100n 4842 5841 +5V 10u

2828

10n

2V3 9 SPEC FIL 0V7 10 SPEC TIME 2V3 11 SPEC DET 3V4 12 NOISE DET
3852 2M2

PLL

16

3V5

2829

100n

10u

2831

I830

1u 2851 100n 2852

PILOT 15 DET MPX 14 IN SAP 13 DET

3V2

2V2

AM_FM_MONO A4 4841

100R

3828

E

E

3V2

100R

3827

100n
2838 10u

2830

SCL A4 SDA A4

9821

1821 A 2821 A 2822 B 2823 D 2824 D 2825 B 2826 A 2827 B 2828 E 2829 E 2830 F 2831 E 2832 C 2833 B 2834 A 2835 C 2836 C 2837 B 2838 E 2839 D 2841 C 2842 B 2843 B 2844 C 2845 D 2846 D 2847 D 2848 D 2849 D 2850 E 2851 E 2852 E 2855 C 2856 C 2857 D 2858 E 2859 E 2860 E 2861 B 2862 A 2863 D 3822 D 3823 D 3824 C 3825 B 3826 C 3827 E 3828 E 3841 C 3842 D 3843 D 3852 E 4821 B 4822 B 4841 E 4842 E 4843 C 4844 C 4845 D 4847 A 4848 A 4849 B 4850 C 4851 C 5821 A 5841 D 7821 B 7841 C 9821 F

3823

14 3V3 13 3V3

7

10u

AudioSupplyGnd

F
I830
ITEM 4841 4842 4845 MONO BTSC STEREO ----JMP JMP JMP ---

F
I836 I847 I848

1V / div DC 1ms / div

1V / div DC 1ms / div

0.5V / div DC 1ms / div

0.5V / div DC 1ms / div

3139 123 5596.1

CL 36532044_005.eps 200603

1

2

3

4

5

6

7

8

9

10

11

Circuit Diagrams and PWB Layouts

L03.1L AA

7.

19

Mono Carrier: Audio Amplifier + Mono Sound Processing

1

2

3

4

5

6

7

8

9

10

AUDIO_AMPLIFIER + MONO_SOUND_PROCESSING
Vaudio (Vaux) 2901 4921 RES RES AmpOutR+ AmpOutL+ A7 A7 AmpOutL_Pos 3901 AmpOutR_Pos 3902 2903 3K3 1K A7 A7 1 F905 2 5V2 CH1+ 4 5V2 CH11V4 8 CH2-IN CH2- 10 5V2 3910 330K F903 Main_OutR 9905 RES 3905 15K 3906 FILAMENT 10u 16V 100K 2908 3911 2906 1u 2907 2952 0V3 9 VOL GNDCH1 GNDCH2 GNDINP CH2+ 12 5V2 9902 RES AmpOutR_Pos AmpOutR_Neg F907 100p 2948 100p 2949 100p 2950 2947 100p 9901 RES F908 AmpOutL_Neg AmpOutL_Pos 4 3 2 1 SPEAKER F906

A

A

+5V

9921

5

F901 Main_OutL

9903 RES 3903 15K 3904 10K 3909 2904 1u 2905 2951 820p 1n 1V4 6 CH1-IN

VCC 11V8

STB 3V7

* 7901 AN7522N

B

A4

* 0246
5

L R

B

TV_BUZZER A4

3908 330K

330K

*

820p

C

A4

2 X 5W 2 X 3W

16 ohm 8 ohm 8 ohm

3 1n

7

11 STEREO OUTPUT

C

4922

2 X 1W

BZX384-C2V7

*7902 AN7523N
1N4148 6909 1V4 6 CH1-IN

5

13V5

0246 B10 0251 F2 2901 A6 2903 A5 2904 B4 2905 B4 2906 C4 2907 C4 2908 C2 2909 D4 2947 C8 2948 C9 2949 C9 2950 C9 2951 B5 2952 C5 3551 F2 3901 A4 3902 A4 3903 B3 3904 B4 3905 C3 3906 C4 3907 D4 3908 B2 3909 B3 3910 B3 3911 C3 4921 A3 4922 C8 6565 F2 6908 D2 6909 D3 7901 B6 7902 D6 9565 F2 9901 B8 9902 B8 9903 B3 9905 C3 9921 A3

1u

3V8

1

6908

STB

VCC 2 6V CH1+ 4 6V CH1-

D

A4

VOLUME

0V4 9 VOL

D *
STEREO MONO 3906 7901 7902
-

0246 5 Pin

3907

2909

3K3

10u

GNDINP 7

NC 8

GNDCH1 3 MONO OUTPUT

YES AN7522N
NO -

AN7523N 3 Pin

E
Vaudio (Vaux)

E

1N4148

9565 RES

6565

0251

F901

F903

F905

F906

F907

F908

F

1 Vaux 2 3551 +5V ITV_Vbatt 10K 3 4 EH-B FOR ITV ONLY

F
0.5V / div AC 1ms / div 0.5V / div AC 1ms / div 0,5V / div AC 1ms / div 0,5V / div AC 1ms / div 0.5V / div AC 1ms / div 0.5V / div AC 1ms / div

3139 123 5596.1

CL 36532044_006.eps 200603

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Circuit Diagrams and PWB Layouts

L03.1L AA

7.

20

Mono Carrier: Font I/O + Front Control + Headphone

1

2

3

4

5

6

7

8

9

FRONT IO + FRONT CONTROL + HEADPHONE
FRONT CINCH
1184 1 2 MONO SET 3182 3

FRONT CONTROL
TO 1121 OF
KEYBOARD A4

A
1181

A
120R 200R 3684 3685 430R 9683 3683 3686 3687 3681 3K3 2K2 1K0

V

100R

3 1

* B *

0277-A

3689

3682

RES

POWER 1606 TS USA

DVD Eject
1604

channel+
1603

channel1602

3183

5 4

0R

6

200R

3688

*
L

0218-C

BZX79-C6V8

2

1185

5

150R

TO 1124 OF

B
volume+
1601

6 4 0277-B 0218-B

3

volume1600

*
R

2 0239 1

3185 8 150R

TO 1010 OF

1 2 3

9

C
ITEM MONO 0218 0277 NO YES

7

*

0218-A

+3V3A +5VS

C
* FOR ITV ONLY

YES NO
A4

RES LED 4692

6691

3691 330R

LTL-10224WHCR

4698

3695

4695 RES

4699 *

STEREO

3692

F691

3694

4K7

D
HEADPHONE
HEADPHONE SOCKET
4981 RES 4982 RES
1 6 AmpOutL+ A6 2981 100u 0232 AmpOutL_Pos A6 A4 IR

*

D
6692 TSOP1836 3

2691

9694

1 2

OUT GND

E

FOR ITV ONLY 0259 1 IR

3981

5 2

FOR MTV ONLY 1681 1 2 TO FRONT INTERF. PANEL

100u

1V / div AC 2ms / div

F691

VS

E

2982

470p

1981

120R

4 2

+3V3B 3 4 IR_OUT LED_OUT

9982 RES

3 4 5

3 5 7

AmpOutR+ A6

2983 100u

3982

8

2984

470p

1982

4983 RES

4984 RES

RES

RES

RES

AmpOutR_Pos A6

4694

RES

2693

2694

2695

2696

F

120R

9

For Engg Purpose Only

F

0218-A C1 0218-B B1 0218-C B1 0232 E4 0239 B6 0259 E8 0277-A B1 0277-B B1 1181 A2 1182 B2 1183 C2 1184 A4 1185 B4 1600 B9 1601 B9 1602 B8 1603 B8 1604 B8 1606 B7 1681 E9 1981 E3 1982 F3 2181 A3 2182 B3 2183 C3 2185 B2 2186 C2 2691 D9 2693 F7 2694