Text preview for : 21PT6341.pdf part of PHILIPS 21PT6341 MANUAL DE SERVICIO
Back to : 21PT6341.part1.rar | Home
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
5.
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
1
2
3
4
5
6
7
8
9
10
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