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Chassis: L01.1A AC
Service Manual
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Colour Television
Chassis
L01.1A
AC
Contents
Page
Contents
8. Alignments 9. Circuit Description Abbreviation List IC Data Sheets 10 Spare Parts List 11 Revision List
Page
55 61 70 71 72 76
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety and Maintenance Instructions, Warnings, and Notes 4 3. Directions for Use 6 4. Mechanical Instructions 16 5. Service Modes, Error Codes, and Faultfinding 18 6. Block Diagram, I2C, Supply Voltage, and Testpoint Overviews Block Diagram 23 I2C and Supply Voltage Diagram 24 Testpoint Overview Mono Carrier & CRT Panel 25 7. Electrical Diagrams and PWB's Diagram Power Supply (Diagram A1) 26 Line Deflection (Diagram A2) 27 Frame Deflection (Diagram A3) 28 Tuner IF (Diagram A4) 29 Video IF + Sound IF (Diagram A5) 30 Synchronisation (Diagram A6) 31 Control (Diagram A7) 32 Audio Amplifier (Diagram A8) 33 NICAM, 2CS, BTSC Stereo Dec. (Diagram A9) 34 Audio/Video Source Switching (Diagram A10) 35 BTSC-NDBX Stereo Decoder (Diagram A11) 36 Front IO, Front Control and HP (Diagram A12) 37 Rear IO Cinch (Diagram A13) 38 Diversity Tables 39 PIP + Tilt Interface (Diagram A16) 40 CRT Panel: ECO Scavem (Diagram B1) 47 CRT Panel: ECO Scavem (Diagram B2) 48 Side AV Panel + Headphone (Diagram C) 51 Top Control Panel (Diagram E) 52 Degaussing + DAF Panel (Diagram G) 53 Front Interface Panel (Diagram Q1) 54
PWB 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 41-46 49-50 49-50 51 52 53 54
© Copyright 2003 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 RB 0364 Service PaCE
Printed in the Netherlands
Subject to modification
EN 3122 785 13210
EN 2
1.
L01.1A AC
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index: 1. Technical Specification 2. Connections 3. Chassis Overview Note: · Described specifications are valid for the whole product range (see Product Survey for specific models). · Figures can deviate slightly from the actual situation, due to different set executions. A/V connections Channel selections Aerial input : BI-NICAM B/G, D, D/ K, I : NTSC 3.58, 4.43 : 100 or 125 channels : UVSH or full cable : 75 Ohm : IEC- or F-type
1.1.2
Miscellaneous Audio output : Stereo: 2 x 1 W or 2 x 3W or 2 x 5W or 2 x 10W : Mono: 1 x 1W or 1 x 3W or 1 x 4W or 2 x 2W : 90 - 276 V or 150276V : 50 / 60 Hz : + 5 to + 45 deg. C : 90 % : 52 W (20") to : 120 W (36") : <3W
1.1
1.1.1
Technical Specifications
Reception Tuning system Colour systems : : : : : : PLL NTSC 3.58, 4.43 PAL B/G, B/H, D/K, I SECAM B/G, D/K, K1 FM-Stereo 2CS (B/G, China, Korea) : 2CS B/G, DK : BTSC DBX : NICAM B/G, D, D/K, I Mains voltage Mains frequency Ambient temperature Maximum humidity Power consumption Standby Power consumption
Sound systems
1.2
1.2.1
Connections
Front/Side Connections and Front/Top Control
FRONT CONTROL + FRONT I/O INSTALL/MENU
TOP CONTROL P+ VPV+
SIDE I/O
R AUDIO L
RED IR LED
R AUDIO L VIDEO + VOLUME -
CHANNEL
CL 36532039_007.eps 240403
Figure 1-1 Front/Side connections and Front/Top control Audio / Video In 1 - Video CVBS 2 - Audio L 3 - Audio R 4 - Headphone 1.2.2 3 - Audio R 1 Vpp/75 Ohm 0.2 Vrms/10 kOhm 0.2 Vrms/10 kOhm 8 - 600 Ohm, 4 mW 0.5 Vrms/1 kOhm
AV1 YUV In(if present) 1 -Y 0.7 Vpp/75 Ohm 2 -U 0.7 Vpp/75 Ohm 3 -V 0.7 Vpp/75 Ohm AV1 In 1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/10 kOhm 3 - Audio R 0.5 Vrms/10 kOhm AV2 In 1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/10 kOhm 3 - Audio R 0.5 Vrms/10 kOhm AV2 In (SVHS) 1 2 3 -Y 4 -C
Rear Connections
75 Ohm
MONITOR OUT V L Y U V
AV1 IN V L R V L R
AV2 IN
FM
R
SVHS
CL 16532008_005.eps 120601
Figure 1-2 Rear connections Monitor Out 1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/1 kOhm
gnd gnd 1 Vpp/75 Ohm 0.3 Vpp/75 Ohm
Technical Specifications, Connections, and Chassis Overview 1.3 Chassis Overview
L01.1A AC
1.
EN 3
B1 B2 C
CRT CRT PANEL SCAVEM TOP CONTROL PANEL
E Q1
SIDE AV PANEL + HEADPHONE
FRONT INTERFACE PANEL
POWER SUPPLY LINE DEFLECTION FRAME DEFLECTION TUNER IF VIDEO + SOUND IF SYNCHRONISATION MAIN CHASSIS PANEL CONTROL (µC) AUDIO AMPLIFIER NICAM + 2CS + BTSC DECODER A/V SOURCE SWITCHING BTSC - NDBX DECODER FRONT I/O + FRONT CONTROL + HEADPHONE REAR I/O CINCH TILT INTERFACE
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A16
CL 36532039_008.eps 010503
G
DEGAUSSING & DAF PANEL (34" only)
Figure 1-3 PWB Location
EN 4
2.
L01.1A AC
Safety & Maintenance Instructions, Warnings, and Notes
2. Safety & Maintenance Instructions, Warnings, and Notes
Index of this chapter: 1. Safety Instructions for Repairs 2. Maintenance Instructions 3. Warnings 4. Notes 3. Clean the picture tube panel and the neck of the picture tube.
2.3
Warnings
· In order to prevent damage to ICs and transistors, avoid all high voltage flashovers. In order to prevent damage to the picture tube, use the method shown in Fig. 2-1, 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).
2.1
Safety Instructions for Repairs
Safety regulations require that during a repair: · Due to the 'hot' parts of this chassis, the set must be connected to the AC power via an isolation transformer. · Safety components, indicated by the symbol , should be replaced by components identical to the original ones. · When replacing the CRT, safety goggles must be worn. Safety regulations require that after a repair, the set must be returned in its original condition. Pay particular attention to the following points: · General repair instruction: as a strict precaution, we advise you to resolder the solder connections through which the horizontal deflection current is flowing, in particular: all pins of the line output transformer (LOT) fly-back capacitor(s) S-correction capacitor(s) line output transistor pins of the connector with wires to the deflection coil other components through which the deflection current flows. Note: This resoldering 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 AC power cord for external damage. · Check the strain relief of the 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 AC plug and the secondary side (only for sets that have an isolated power supply). Do this as follows: 1. Unplug the AC power cord and connect a wire between the two pins of the AC plug. 2. Turn on the main power switch (keep the AC power cord unplugged!). 3. Measure the resistance value between the pins of the AC plug and the metal shielding of the tuner or the aerial connection of the set. The reading should be between 4.5 MOhm and 12 MOhm. 4. Switch the TV 'off' and remove the wire between the two pins of the AC plug. · Check the cabinet for defects, to prevent the possibility of the customer touching any internal parts.
V
CL96532156_040.eps 140501
Figure 2-1 Discharge picture tube · All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD ). Careless handling during repair can reduce life drastically. When repairing, make sure that 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 potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable, and ground cable) 4822 310 10671. Wristband tester 4822 344 13999. Together with the deflection unit and any multi-pole unit, flat square picture tubes form an integrated unit. The deflection and the multi-pole units are set optimally at the factory. Adjustment of this unit during repair is therefore not recommended. Be careful during measurements in the high voltage section and on the picture tube. 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 (), or hot ground (), depending on the area of circuitry being tested. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see "Service Modes, Error Codes, and Faultfinding" section) with a color bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 61.25 MHz (NTSC, channel 3). Where necessary, measure the waveforms and voltages with () and without () aerial signal. Measure the voltages in the power supply section both in normal operation () and in standby (). These values are indicated by means of the appropriate symbols.
2.2
Maintenance Instructions
It is recommended to have a maintenance inspection carried out by qualified service personnel. The interval depends on the usage conditions: · When the set is used under normal circumstances, for example in a living room, the recommended interval is three to five years. · When the set is used in an environment with higher dust, grease or moisture levels, for example in a kitchen, the recommended interval is one year. · The maintenance inspection includes the following actions: 1. Perform the 'general repair instruction' noted above. 2. Clean the power supply and deflection circuitry on the chassis.
·
·
Safety & Maintenance Instructions, Warnings, and Notes
· The picture tube panel has printed spark gaps. Each spark gap is connected between an electrode of the picture tube and the Aquadag coating. The semiconductors indicated in the circuit diagram and in the parts lists are completely interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.
L01.1A AC
2.
EN 5
·
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 expressed 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 Electrical Replacement Parts List. Therefore, always check this list when there is any doubt.
·
·
· · ·
2.4.3
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 - 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. Before powering up the TV set with the back cover off (or on a test fixture), attach a clip lead to the CRT DAG ground and to a screwdriver blade that has a well insulated handle. After the TV is powered on and high voltage has developed, probe the anode lead with the blade, starting at the case of the High Voltage Transformer (flyback - IFT). Move the blade to within two inches of the connector of the CRT. If there is an arc, you found it the easy way, without getting a shock! If there is an arc to the screwdriver blade, replace the part which is causing the problem; the High Voltage Transformer or the lead (if it is removable).
·
·
EN 6
3.
L01.1A AC
Directions for Use
3. Directions for Use
Direction for Use
L01.1A AC
3.
EN 7
EN 8
3.
L01.1A AC
Direction for Use
Direction for Use
L01.1A AC
3.
EN 9
EN 10
3.
L01.1A AC
Direction for Use
Direction for Use
L01.1A AC
3.
EN 11
EN 12
3.
L01.1A AC
Direction for Use
Direction for Use
L01.1A AC
3.
EN 13
EN 14
3.
L01.1A AC
Direction for Use
Direction for Use
L01.1A AC
3.
EN 15
Personal Notes:
EN 16
4.
L01.1A AC
Mechanical Instructions
4. Mechanical Instructions
Index of this chapter: 1. Set Disassembly 2. Service Positions 3. Assy/Board Removal 4. Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to different set executions. Main panel with bracket (with separate 'control' part). 1. Disconnect the strain relief of the AC power cord. 2. Disconnect the degaussing coil by removing the cable from (red) connector 0212 [1]. 3. Remove the panel bracket from the bottom tray, by pulling it backward [2]. 4. Turn the chassis tray 90 degrees counter clockwise [2]. 5. Move the panel somewhat to the left and flip it 90 degrees [3], with the components towards the CRT. 6. Turn the panel with the rear I/O towards the CRT. 7. Place the hook of the tray in the fixation hole of the cabinet bottom [4] and secure it.
4.1
Set Disassembly
1. Remove all fixation screws of the rear cover (do not forget the screws that hold the rear connection panel). 2. Now pull the rear cover backwards to remove it.
4.2
Service Positions
There are 2 configurations possible. With and without panel bracket. Both have a different service position: Main panel without bracket (with integrated 'control' part). 1. Disconnect the strain relief of the AC power cord. 2. Remove the main panel, by pushing the two center clips outwards [1]. At the same time pull the panel away from the CRT [2]. 3. Disconnect the degaussing coil by removing the cable from (red) connector 0212. 4. Turn the panel 90 degrees counter clockwise [3]. 5. Flip the panel 90 degrees [4], with the components towards the CRT. 6. Turn the panel with its rear connections towards the CRT [5]. 7. Slide the metal heatsink (near the mains transformer 5520) underneath the right chassis bracket. This secures the panel [6].
1
2
A
A
3
4
1
11
B
CL 16532016_009.eps 220501
Figure 4-2 Service position (2)
2 3
4.3
4.3.1
4 5
Assy/Board Removal
Comb Filter Assy/ Board (if present) You can remove the Comb Filter panel from the Main Carrier board, by disconnecting it from connector 1810 (located nearby the mains transformer 5520).
B
6
CL 16532016_007.ai 040401
Figure 4-1 Service position (1)
Mechanical Instructions
4.3.2 Top Control Assy/Board (if present)
L01.1A AC
4.
EN 17
1. You can remove the complete module from the Main Carrier bracket, by pressing its fixation clamp downwards [1] while sliding the module in the direction of the CRT [2]. 2. Release the 2 fixation clamps [3] to lift the board out of the bracket [4].
Top control board
M
4.3.5
Side I/O Assy/ Board (if present)
CL 06532012_003.eps 030200
Figure 4-3 Top control removal 1. Remove the two fixation screws (if present). 2. Pull the module down and backwards (w.o.w. release it from the front hinge [M]). You must use some force. 3. Lift the board from its bracket while releasing the two fixation clamps. The board hinges on the other side. 4.3.3 Front Interface Assy/ Board (if present)
CL 06532012_004.eps 030200
1
Figure 4-6 Side jack panel removal
1 2
1. You can remove the complete Side I/O assembly after removing the 2 fixation screws. 2. Release the 2 fixation clamps to lift the board out of the bracket.
3 3
CL 06532130_018.eps 021000
4.4
Set Re-assembly
Before you mount the rear cover, perform the following checks: 1. Check whether the AC power 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.
Figure 4-4 Front interface removal 1. You can remove the complete module from the bottom plate, by pulling the two fixation clamps upwards [1] while sliding the module away from the CRT [2]. 2. Release the 2 fixation clamps [3] at the side of the bracket, and lift the board out of the bracket (it hinges at one side). 4.3.4 DAF Assy/ Board (if present)
1
4
3 3
2
CL 26532119_060.eps 181202
Figure 4-5 DAF panel removal
EN 18
5.
L01.1A AC
Service Modes, Error Codes and Fault Finding
5. Service Modes, Error Codes and Fault Finding
Index: 1. Test points. 2. Service Modes. 3. Problems and Solving Tips (related to CSM). 4. Compair 5. Error Codes. 6. The Blinking LED Procedure. 7. Protections. 8. Repair Tips. Table 5-2 SW Cluster SW Cluster L3LAN1 L3LAN2 L3LAN3 Software mane UOC type UOC Special Diversity Features 64K ROM China Size 64K ROM India, M.E. Size 55K ROM China, Size AV stereo 64K ROM 1pg TXT, Size AV stereo 64K ROM NTSC, Size Tai Wan, Korean
L01AN4x.y TDA9582 (LS) L01AN5x.y TDA9582 (LS) L01AN7x.y TDA9570 (LS) L01AT5x.y TDA9552 (LS) L01AC2x.y TDA9580 (LS)
5.1
Test Points
The chassis is equipped with test points printed on the circuit board assemblies. These test points refer to the functional blocks: Table 5-1 Test Point Overview TEST POINT CIRCUIT A1-A2-A3-.. C1-C2-C3-.. F1-F2-F3-.. I1-I2-I3-.. L1-L2-L3-.. P1-P2-P3-.. S1-S2-S3-.. V1-V2-V3-.. AUDIO PROCESSING CONTROL TUNER & IF LINE DRIVE & OUTPUT POWER SUPPLY SYNCHRONISATION VIDEO PROCESSING DIAGRAM A8, A9 A7 A4 A2 A1 A6 A5, B1
L3LAT1 L3LAC1
Abbreviations in Software name: A = AP, T = TXT, N = NON TXT, C = NTSC, M = MONO, D = DVD 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.
FRAME DRIVE & OUTPUT A3
The numbering is in a logical sequence for diagnostics. Always start diagnosing within a functional block in the sequence of the relevant test points for that block. Perform measurements under the following conditions: · Service Default Alignment Mode. · Video: colour 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, while the Customer Service Mode (CSM) is used for communication between dealer and customer. 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 also acceptable (see also paragraph 5.4).
Specifications · Tuning frequency: 475.25 MHz for PAL/SECAM (AP-PAL). 61.25 MHz (channel 3) for NTSC-sets (AP-NTSC). · Colour system: PAL-BG for AP-PAL. NTSC for AP-NTSC. · All picture settings at 50 % (brightness, colour contrast, hue). · Bass, treble and balance at 50 %; volume at 25 %. · All service-unfriendly modes (if present) are disabled, like: (sleep) timer, child/parental lock, blue mute, hotel/hospitality mode auto switch-off (when no "IDENT" video signal is received for 15 minutes), skip / blank of non-favorite presets / channels, auto store of personal presets, auto user menu time-out. · Operation hours counter. · Software version. · Option settings. · Error buffer reading and erasing. · Software alignments. How to enter 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 · Short jumper wires 9631 and 9641 on the mono carrier (see Fig. 8-1) and apply AC power. Then press the power button (remove the short after start-up). · Caution: Entering SDAM by shorten wires 9631 and 9641 will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could lead to damaging the set. · Or via ComPair.
Service Modes, Error Codes and Fault Finding
· After entering SDAM, the following screen is visible, with S at the upper right side for recognition. ·
L01.1A AC
5.
EN 19
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.
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 O P 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 X X X X X X
How to store settings To store settings leave the SDAM (at top level SDAM main menu) 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. 5.2.2 Customer Service Mode (CSM) Purpose When a customer is having problems with his TV-set, he can call his dealer. The service technician can than ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severness of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode; therefore, modifications in this mode are not possible. How to enter To enter the CSM by pressing user remote control and key in the code123654. After switching ON the Customer Service Mode, the following screen will appear:
C L E A R ? > > > > > >
CL 26532046_078.eps 260402
Figure 5-1 SDAM menu LLLL This is the operation hours counter. It counts the normal operation hours, not the standby hours. AAABCD-X.Y This is the software identification of the main micro controller: A = the project name (L01). B = the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM. C = the feature of software diversity: C = NTSC, D = DVD, N = no TXT, T = TXT. D = the language cluster number: X = the main software version number. Y = the sub software version number. S Indication of the actual mode. S= SDAM= Service Default Alignment mode. Error buffers Five errors possible. Option bytes Seven codes possible. 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 To align the Audio. 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.
1 2 3 4 5 6
C S M AAABCD X.Y AKBS TV SYSTEM / NOT TUNED ERROR BUFFER
CL 26532046_002 040402
Figure 5-2 CSM menu
· · · · · ·
Indication of the actual mode CSM = Customer Service Mode Reserved. Software identification of the main micro controller (see paragraph 5.2.1 for the explanation) Reserved item. Indicates TV system and or not receiving an "IDENT" signal on the selected source. It will display "NOT TUNED" Error code buffer (see paragraph 5.4 for more details). Displays the last five errors of the error code buffer.
How to exit Use one of the following methods: · Press one of the buttons "Menu", "OSD" or "Standby" of the remote control keys. · Switch-off the TV set with the AC power switch.
5.3
5.3.1
Problems and Solving Tips (Related to CSM)
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.
EN 20
5.
L01.1A AC
Service Modes, Error Codes and Fault Finding 5.4
5.4.1
No colours / noise in picture Check CSM line 5. Wrong colour system installed. To change the setting: 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. Colours not correct / unstable picture Check CSM line 5. Wrong colour system installed. To change the setting: 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 picture improves after you have switched on the Customer Service Mode 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 Check CSM line 5. If this line indicates "Not Tuned", check the following: · 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 when the volume is OK after you switched on the CSM. The new "Personal" preference value is automatically stored.
ComPair
Introduction ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages: · ComPair helps you to quickly get an understanding on how to repair the chassis in a short time by guiding you systematically through the repair procedures. · ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this. · ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away.
5.4.2
Specifications ComPair consists of a Windows based faultfinding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial or RS232 cable. In case of the L01 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: · Automatic (by communication with the television): ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C level. ComPair can access the I2C bus of the television. ComPair can send and receive I2C commands to the micro controller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C busses of the TV-set. · Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extend. When this is not the case, ComPair will guide you through the faultfinding tree by asking you questions (e.g. Does the screen gives a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the faultfinding process. By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way. Beside fault finding, ComPair provides some additional features like: · Up or downloading of presets. · Managing of preset 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 Monocarrier. · 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.
Service Modes, Error Codes and Fault Finding
5.4.3 How To Connect ComPair 1. First install the ComPair Browser software (see the Quick Reference Card for installation instructions). 2. Connect the RS232 interface cable between a free serial (COM) port of your PC and the PC connector (marked with "PC") of the ComPair interface. 3. Connect the AC power adapter to the supply connector (marked with "POWER 9V DC") on the ComPair interface. 4. Switch the ComPair interface OFF. 5. Switch the television set OFF (remove the AC power). 6. Connect the ComPair interface cable between the connector on the rear side of the ComPair interface (marked with "I2C") and the ComPair connector on the mono carrier (see figure 8-1 suffix D). 7. Plug the AC power adapter in the AC power outlet and switch on the interface. The green and red LEDs light up together. The red LED extinguishes after approx. 1 second while the green LED remains lit. 8. Start the ComPair program and read the "introduction" chapter. 5.4.7
L01.1A AC
5.
EN 21
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.
5.4.8
Error Codes In case of non-intermittent faults, clear the error buffer before you begin the repair. These to ensure that old error codes are no longer present. 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 Device 0 1 2 Not applicable Not applicable Not applicable
Error description No Error
Check item
Diagram
X-Ray Protec- 2465, tion (USA) 7460 Horizontal Protection 7460, 7461, 7462, 7463, 6467 VloAux +13v
A2 A2
PC
VCR
Power 9V DC
I2C
86532027_003.EPS 050898
3 4 5
TDA8359/ TDA9302 MSP34X5/ TDA9853 TDA95XX
Vertical Protection
A2,A3 A9 A1,A2. A5,A6, A7 A7
Figure 5-3 Compair connection 5.4.4 How To Order ComPair order codes: · Starter kit ComPair32/ SearchMan32 software and ComPair interface (excluding 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 · ComPair interface cable: 3122 785 90004 5.4.5 Error Buffer
MAP I2C iden- 7831 tification error POR 3.3V / 8V 7200, Protection 7560, 7480 General I2C bus error E/W Protection (Large Screen) NVM I2C identification error 7200, 3624, 3625 7400, 3405, 3406, 3400 7602, 3611, 3603, 3604
6
I2C bus
7 8
Not applicable Not applicable
A2
9
M24C08
A7
10 The error code buffer contains all detected errors since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is written at the left side and all other errors shift one position to the right. 5.4.6 How To Read The Error Buffer You can read the error buffer in 3 ways: · On screen via the SDAM (only if you have a picture). Examples: ERROR: 0 0 0 0 0 : No errors detected ERROR: 6 0 0 0 0 : Error code 6 is the last and only detected error ERROR: 9 6 0 0 0 : Error code 6 was first detected and error code 9 is the last detected (newest) error · Via the blinking LED procedure (when you have no picture). See next paragraph. · Via ComPair.
Tuner
Tuner I2C 1000, 7482 identification error
A2,A4
11
TDA6107/8 Black current 7330, loop protection RGB amps, CRT M65669 MAP I2C iden- 7803 tification error (USA)
B1,B2
12
P
EN 22 5.5
5.
L01.1A AC
Service Modes, Error Codes and Fault Finding
problem is expected in the vertical amplifier IC 7471. Measure with a scope the waveform on pin 17 of the UOC. Measure also at pin 1 of IC 7471. If here the signal is missing, a defective resistor R3244 causes the problem
The Blinking LED Procedure
Via this procedure you can make the contents of the error buffer visible via the front LED. This is especially useful when there is no picture. When the SDAM is entered, the LED will blink the contents of the error-buffer. · n short blinks (n = 1 - 14), · when all the error-codes are displayed, the sequence finishes with a LED blink of 3 s, · the sequence starts again. Example of error buffer: 12 9 6 0 0 After entering SDAM: · 12 short blinks followed by a pause of 3 s, · 9 short blinks followed by a pause of 3 s, · 6 short blinks followed by a pause of 3 s, · 1 long blink of 3 s to finish the sequence, · the sequence starts again.
5.6
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 two service modes implemented: · The Customer Service Mode (CSM). · The Service Default Alignment Mode (SDAM). Start-up of the set in a predefined way and adjustment of the set via a menu and with the help of test patterns.
5.7
Repair Tips
Below some failure symptoms are given, followed by a repair tip. · Set is dead and makes hiccuping sound "MainSupply" is available. Hiccupping stops when de-soldering L5561, meaning that problem is in the "MainSupply" line. No output voltages at LOT, no horizontal deflection. Reason: line transistor 7460 is defective. · Set is dead, and makes no soundCheck power supply IC 7520. Result: voltage at pins 1, 3, 4, 5 and 6 are about 180 V and pin 8 is 0 V. The reason why the voltage on these pins is so high is because the output driver (pin 6) 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 µP "POR" and "+8V protection" happen at the same time, measure the "+8V". If this voltage is missing, check transistor 7480. · Set is non-stop in hiccup modeSet 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 soundThe screen shows snow, but OSD and other menus are okay. Blinking LED procedure indicates error 11, so problem is expected in the tuner (pos. 1000). Check presence of supply voltages. As "Vlotaux+5V" at pin 5 and 7 are okay, "VT_supply" at pin 9 is missing. Conclusion: resistor 3460 is defective. · Set turns on, but with a half screen at the bottom. Sound is okayBlinking LED (set in SDAM mode) indicates error 3. Check "Vlotaux+11V" and "+50V". If they are okay,
Block Diagram, Supply Voltage, and Testpoint Overview
L01.1A AC
6.
23
6. Block Diagram, Supply Voltage, and Testpoint Overview
Block Diagram
C
V
SIDE AV
A12 FRONT I/O
0219 6 A
MONO STEREO
A10 AUDIO/VIDEO SOURCE SWITCHING
V A CVBSFRONT-IN 7802 HEF4053BT
A8 AUDIO AMPLIFIER
SC2-LIN MONO/AM_MONO-SOUND 7901 AN7522N (STEREO) A5 7902 AN7523N (MONO) 4905 A1 6 8 ERR 7 2
A2
Q1
FRONT INTFACE (PARTLY)
A7 CONTROL
+3.3V
+3.3V
0251 6
6692 TSOP1836
V
A10
L-FRONT-IN
L R
3 1
3 1
BL C
L B R C
A12 L2-IN A13
LFRONT-IN
12 13 5 3 2 1
14
A9
SC2-RIN
0280 L+ 4
L-
1 6691
IR
5602 5603 5604 7200-B TDA95XX 66 61 59
7602 M24C08 EEPROM 8 (NVM) 6 ERR 5 9
3611
A1
LED POWER DOWN
A5 A10
R-FRONT-IN
A12 R2-IN A13
RFRONT-IN
4
A9
SY-CVBS-IN
4
A3
3 2
L
69
I/O
68
+3.9V
7
+3V3
A10
A12 Y-CVBS-IN A13
CVBSFRONT-IN
15
A7
VOLUME MUTE MAINAUX_FB
9
10
A4
R-
ON/OFF
3908
A13 STATUS1 A13 STATUS2
OR
1 2
IIC BUS TRANSCEIVER
3607 72 71
C4 C5
1
SEL-MAIN-FRONT-RR
12
R+ 1
R
SDA SCL
3604 3606 3625 3624
3603 SDA SCL
ERR 6
A10
A5 5205
0257
A13 REAR I/O CINCH
7101 V-OUT V CVBS1-IN
SC1-LIN SC1-RIN
MAINAUX
A4 A8 A9
A12 FRONT CONTROL
6692 TSOP1836 1 6691 +3V3 LOCAL KEYBOARD LED KEYBOARD _PROTN
C5
IR LED
67 5 I/O PORTS 3 6
A5
MONITOR OUTPUT
V L R L-OUT R-OUT 7102, 7103 STATUS 1 Y G-Y-IN
AV1
L R 9 11
A5 A5 A9 A5 A9 A7 A13
C-IN
4812
SDA SCL
COMB-BYPASS A4 A5 A10 STANDBY-CON A1 COMB-SEL-CVBS0 or AV2 A10 BASS PANORAMA A2 TREBLE-BUZZER-HOSP-APP VOLUME/MUTE A8 9641 SDM
A12 HEADPHONE
L+ L+ LRR+ LRR+
IR
SYY-CVBS-IN
A9 NICAM + 2CS + BTSC (STEREO/SAP) DECODER
QSS-AM-DEM-OUT FMR
A11
A9 A9
A5
4814
STATUS2
SS-C-IN
7834 7835 47
7831 MSP34X5G AUDIO DEMODULATOR NICAM + 2CS BTSC, AM, FM
A10
OR OR
KEYBOARD_PROTN
80
ROM RAM 1/10 PAGES MEMORY TELE TEXT + OSD CVBS SYNC VST PWMDAC
70 78 77 73
10 STATUS 1
A5
25
A9
MAIN-OUT-L MAIN-OUT-R
COMPAIR CONNECTION (FOR SERVICE)
A7
2 3 4 5
6 4
5
Y-CVBS-IN
A10
C-IN
A5 A5
SVHS
1
A5 A10 A13
MONO/AM-MONO-SOUND 3834 2847 44 SC1-L IN SC1-R IN 41 42 39 40
24
A8
7606 OR
C
0246 1 2 3 2 3
OR
C1 OR C2
HEADPHONE L+ LR-
A9
0255 4 3 2 1
31
L OUT A13 R OUT A13 SEL-MAIN-FRNT-RR A10
L+ L-
0254 1
KEYBOARD _PROTN
9631 6601 POWER-DOWN A1 TILT A16
C1
EWPROTECTION
A2
YUV INPUT
U
B-U-IN
V V R-V-IN
A13 SC2-L IN A10
L2-IN R2-IN
INPUT SWITCHING
ERR 4
30 4 51
L
E
R
LOCAL KEYBOARD
ERR 5
63
3172 ON A8
A5
A10 A10 A10 A7 A7
SC2-R IN SDA SCL
AV2 L R
3833 3832
A6
8
A7
R-
4 5
4 5
R+
CPU
64
1660 12MHz
C2
7
52
1831 18M432
R+
B1 CRT A4 TUNER IF
A2 VT_SUPPLY
5001 VLOTAUX +5V 0265 1
FM
B2 ECO SCAVEM
R G B
+13V +200VA 0278 1 2 SCAVEM COIL
A5 VIDEO IF, SOUND IF 7209, 7210
6001 BZX79-C33 9 VT 2
ERR 10 I4
FM
FM RADIO DE-EMPHASIS 7200-A TDA95XX
FMR
AUDIO CARRIER FILTERS QSS_AM_DEM_OUT 5201 +8V 1200
4.5MHz NTSC 5.5MHz PAL 6MHz AP MULTI V10
V4
7205 3221 7200-C TDA95XX 47
3222 V-OUT A13' +8V OSD
SETS WITH VIDEO OUT ONLY
+
7330 TDA6107Q +200VA
SCAVEM PROCESSING
1000
6, 7
1002 1003 11
VIF_1 VIF_2
18 19 22 VIDEO IF AGC VIDEO PLL DEMOD. VIDEO AMPLIFIER 38
V14
TV
TV TUNER IF + FM-RADIO 10 TUNER FM (OPTIONAL) AGC 1 5 4
I3
7201 +8V 3208
1201
3213
6.5MHz AP PAL
V9
2203
40
I/O SWITCHING
RGB MATRIX RGB INSERT BLACK STRETCH WHITE STRETCH 51 52 53 50
R G B
RGB CONTROL OSD TEXT INSERT BLUE STRETCH WHITE-P. ADJ 54 7204 EHT INFO PROC.
R 56 G 57 B 58
3201 3202 3203
V5 V6
0243 1 2
0245 1 2
V12 V11
2
8 R 3336 9 G 3334 3332
V15
0165 8 6
R G B
AQUADAG
1
V13
1004 SIF_1 SIF_2 RF_AGC
23 24
3001
I1
QSS SOUND IF + AGC
QSS MIXER AM DEMOD.
33
7206 3230
7202 1202
7203
Y-DELAY
Y
V7
3
V9
3 3 7 B 5 BKL EHT-INFO
V16
11
CRT
A10 SS-C-IN A10 SSY-CVBS-IN
45 44 42
VIDEO FILTERS VIDEO IDENT PAL/NTSC SECAM DECODER R-Y B-Y BASE BAND DELAY U V
A7 SDA
3000
I2
55
3204
10 9
5 7 1
4 BKL 5 6
4 5 6 +13V 3340
ERR 11
A7 SCL
7001, 7002
SOUND FM-DEMOD. DE-EMPH.
AUDIO SWITCH 28 29
SOUND AMPL. + AVL
RES. 48 MONO/AM_ MONO_SOUND 3211 3210
A13 CVBS1-IN
COMB-BYPASS A7
3235
BKL-IN
3341 3342 Filament 2340 0244 1 2 3 4 5 VG2 FOCUS EHT EHT
25kV
A7 COMB-BYPASS
FILTER SELECT
A8 A9 A13 SC1_LIN A12 LFRONT-IN
A13
R-V-IN G-Y-IN B-U-IN FBL-IN
A2
+200VA
EHT info
A2
A2
LINE DEFLECTION VLOTAUX +13V MAIN AUX
0220 1 2 3 4 5
0298
G
DAF (34" only)
G
DEGAUSSING (34" only)
6467 3505 PTH451C
6469
5445
MAIN SUPPLY 140V
3487
5451 3 1
A EHT
B
C
D
0261
0233
ERR 2
DAF CIRCUIT
1506 1 Degaussing Coil
2 3
1 +t +t +t 3507 3506
3493 1505 1 2 7461 7463 LINE-OUTPUT DRIVER STAGE 5461
L3 7460 BU4508DX LINE OUTPUT CIRCUIT FOCUS 0221 1 2 HOR. DEFL. COIL 3490 3469 10 IF DAF PANEL IS MOUNTED VG2
VLOTAUX +50V
A
L1
7462
+t 2
L2
A5 A6
EHT info
0221 1 2
5493
0258 1 2 HOR. DEFL. COIL
A1 POWER SUPPLY
0212 3
3504
4 1
1515
7580 ENERGIZING CIRCUIT VLOTAUX +13V 6562 5562 6561 A 3564 2564
3558 +3.9V 7560 1
P5 P4
A6 SYNCHRONISATION
7200-D TDA95XX 9
5241
+8V
only for sets with E/W correction 7400 L4 STP3NC60FP D E/W 3404 CIRCUIT G S 3405 E/W PROTECTION
ERR 8
ERR 1
6
H flybk A6
A1 A7
3431 (OPTIONAL)
5 11
6485 6487
3494 3488 3460
L5
t
2
3 2567
+3.3V
A2 A2
EHT info H flybk
3259 2254 3242
S1
11 31 H-DRIVE 2nd LOOP H-SHIFT 30
S2
L7
VIDEO SUPPLY 200V VLOTAUX +50V VT_SUPPLY A4
B
3251 H DRIVE
only for sets with panorama
A7
BASS_PANORAMA 3489 1400 7444 4 1
2454 3 2
L6
0211
0231
1500 T4E
5500 : 5502
6500 2 AC 1 3
DC
12V MAIN AUX E/W PROTECTION
ERR 7
TV
PICTURE WIDTH CONTROL 7 12 3455 8 5480
P1
5520 2 17
150-250V SINGLE RANGE 90-276V FULL RANGE
7561, 7562 7564 PROTECTION
A2
A2 A2
EHT info EHT o
3247
34 VIDEO IDENT
EW + GEOMETRY
S5
15
3250
EW DRIVE/ EWD-DYN
FILAMENT
D
L9
2503
MAINS SWITCH
3 4 5 16 14 13 12 11 10 5560
7520 TEA1507
DRAIN
3532 8 6 5 4 1 3523 3525 3522 3528
P2
7521 STP7NB60FP D
G S
POWER DOWN A2 A7 (2X)
P6
A1 VCONTROL
S3
7482
VLOTAUX +5V A
6560 5564 2561 A
5561
DRIVER
140V MAIN SUPPLY
H H/V SYNC SEPARATOR V H-OSC +PLL
17 V-DRIVE + GEOMETRY
S4
3244 3249
V DRIVE+ V DRIVE-
A3 FRAME DEFLECTION
VLOTAUX +13V
9 6488 5472 6
6470
3450 7480 3464
L10
16
OR
3
SENSE CTRL DEMAG VCC
8 3526 6520 2521 3
P3
N.C.
3594
7471 TDA8359J
F1
VLOTAUX +50V
ERR 3
+8V B +13V
Q1 FRONT INTERFACE
(PARTLY)
3 VP
9
N.C.
7540, 6540 REFERENCE CIRCUIT
3543 VCONTROL 3544
V DRIVE+
1 2
F2
A2
A16 TILT INTERFACE
7000 TDA8941P 1 7 TILT 5 2 TILT OUTPUT
V1+ VOA V1FRAME OUTPUT 7
VGUARD CIRCUIT 5471 3479 3471
F4 F3
VGUARD A2 0222 1 2 VERT. DEFL. COIL
6447 3451
6486
3447 7441 PROT CIRCUIT 7443, 7450 PROT CIRCUIT
L8
VLOTAUX +13V VGUARD A3 BLK-IN A5 POWER-DOWN A1 EHT o A6
ERR 2
C
VLOT AUX +13V
V DRIVE0268 1 2 TILT DEFL. COIL
0211 0231 1
3446
0212 1
CONTROL IC
VM 9 VOB 4
1 7515 TCET1103 7541, 7542 STANDBY CIRCUIT STDBY_CON
110V
2 MAINS SWITCH
2
A7 A7
2444
3452
4 HOT GROUND
2 COLD GROUND
5
CL 36532039_012.eps 250403
Block Diagram, Supply Voltage, and Testpoint Overview
L01.1A AC
6.
24
I2C and Supply Voltage Overview
A1 POWER SUPPLY
0211
0231
A2 LINE DEFLECTION
5445 5500 : 5502 6500 GBU6J 2 AC 1 3
MAINS SWITCH
B1
LOT
EHT FOCUS VG2
CRT
B2
SCAVEM (OPTIONAL)
+13V +200VA
P6
5560
P1
6560
5564 2561
5561
1500 T4E
140V MAIN SUPPLY
MAIN SUPPLY
3487 5451 3
ANODE CRT FOCUS CRT VG2 CRT VIDEO SUPPLY 0220 3494 200V 2 3 4 0244 2 +200V 3 +13V 4 5 FILAMENT 3342 3341
5520 2 17
2450 A
7330 3340 +200VA 6 2340
RGB DRIVER
150 - 250V SINGLE RANGE 90 - 276V FULL RANGE
DC
2503
3 6562 4 5 16 14 13 12 5562 6561 3564 2564 7561, 7562 7564 N.C. PROTECTION CIRCUIT EW_Protection A2 POWER DOWN A2 A7
A5 VIDEO IF
P5
AMPL. A8 AUDIO7901
OR
MAIN AUX VLOT AUX +13V
5
6485
7520 TEA1507
DRAIN
3532 8 6 5 4 1 3523 3525 3522 3528
P3 P2
1
7521 STP7NB60FP D
G S
12V MAIN AUX
5205
3908 MAIN AUX_FB
AUDIO OUTPUT STEREO
VLOT AUX +13V 9420
DRIVE R SENSE CTRL DEMAG VCC
7902
OR
6469
6467
7
5480 FILAMENT
5
8 3526 6520 9
AUDIO SUPPLY GND
5204
1
3
AUDIO OUTPUT MONO
TO CRT FILAMENT
11 10 2521
AUDIO SUPPLY GND-FB
11 6487
3488
+13V VLOT AUX +50V
A4 TUNER IF
3460 VT_SUPPLY
VT_SUPPLY 33V
1000 9
TUNER
CONTROL IC
A7 CONTROL
7560 3 2567 3557 3549 3558 TO 3568 +3.9V
P4
+3.3V 7200-B 66 61 59 7602
uC
3493
6001BZX79 -/C33 3455 7482 3450 VLOT AUX +5V VLOT AUX +5V 5001 6 7
+3.3V
5602 5603 5604 +3.9V (TO 3606 3607,3633) 3611
H-DRIVE
LINE OUTPUT
TO 6445 +8V (TO 3008)
3449
6481
A 3 1 2 3543 VCONTROL A2 3544 7515 TCET1103 4 7540, 6540 REFERENCE CIRCUIT 7541, 7542 STANDBY CIRCUIT
8 EEPROM (NVM)
8 6488
7480
+8V
A3 FRAME DEFLECTION
7471 VLOT AUX +50V 5472 6 3 VLOT AUX +5V (TO 6470)
FRAME OUTPUT
3447
A6 SYNCHRONISATION
+3.3V (TO 3256) 6482
3464
+13V
+13V
3446
TO 3400 VLOT AUX +13V (TO 6452,6468,2441, 3448,3453)
A12
STBY_CON A7 +3.3V
FRONT CONTROL
4693 +3V3A
0214 1
Q1 FRONT
0214 1
INTERFACE
+3V3
9
6486
HOT GROUND
COLD GROUND VLOT AUX +5V +8V
A1 POWER SUPPLY
VLOT AUX +13V TO DEGAUSSING CIRCUIT
A9 NICAM + 2CS + BTSC DECODER
7831
A5 VIDEO IF
I2C BUS INTERCONNECTION DIAGRAM A7 CONTROL
+3.9V +3.9V ERR 6 SDA SCL 3604 3603
A4 TUNER IF
A8 AUDIO AMPL.
A9 NICAM + 2CS +
BTSC DECODER
VLOT AUX +5V 46 AUDIO DECODER 5833 +5VA 5832 33 +8V
VLOT AUX +5V (TO 2234) +8V 5202 +8VA
7200-A 39
VIDEO IF
A6 SYNCHRONISATION
+8V (TO 3248) +8VB 5241 9 7200-D
SYNC PROC.
C4
3607
7200-B SET 72 PROCESSOR 71 PART OF VIDEOPROCESSOR
SDA
3606 3625 3624
A10 AUDIO VIDEO SOURCE SWITCHING
SDA SCL 3001 3000 SDA SCL 3833 3832 VLOT AUX +5V
A8
+8V +8VB 3801
+6V8
SCL
C5
+3.3V
A7
CONTROL
+8V +8V (TO 4-0217) NOT USED VLOT AUX +5V (TO 3619)
0217 4
3626 ERR 5 68
5 6 7602 M24C08 7 EEPROM (NVM) ERR 9
I1
5 4 1000 TUNER
I2
A7
8 7 7831 MSP34X5G AUDIO DECODER ERR 4
ERR 10
A8 AUDIO AMPLIFIER A13
REAR I/O CINCH
VLOT AUX +5V (TO 9904 - 3912) +8VB (TO 7101-C) VLOT AUX +5V
0267 1 2 FOR COMPAIR ONLY 3
A16
TILT INTERFACE
VLOT AUX +13V
ERROR CODE LIST
Error 0 1 2 3 4 5 6 7 8 9 10 11 Description No error X-Ray / over voltage protection High beam (BCI) protection Vertical guard protection I2C error while communicating with the sound processor Power ON reset (POR bit) 3.3V protection / +8V protection General I2C error Power down (over current) protection EW protection (Large Screen only) I2C error EEPROM error I2C error PLL tuner Black current loop instability protection
CL 26532119_005.eps 101202
Block Diagram, Supply Voltage, and Testpoint Overview
L01.1A AC
6.
25
Testpoint Overview
A1 B4 A2 A4 A3 A5 A4 A4 A5 C3 A6 B3 A7 B3 A8 B4 A8a B4 A9 B4 A10 B4 A11 B4 A11a C3 A12 C2 A13 C2 A14 C1 A15 B2 A16 B2 C1 B6 C2 B6 C3 B6 C4 B6 C5 B6 C6 E1 F1 D8 F2 D8 F3 C8 F4 C7 I1 A7 I2 A8 I3 A7 I4 A7 L1 C6 L2 E6 L3 E7 L4 E6 L6 C7 L7 E8 L8 E8 L9 C7 L10 C7 L11 D7 P1 E5 P2 E4 P3 D3 P4 C4 P5 C4 P6 D5 S1 B5 S2 A6 S3 A7 S4 A7 S5 A7 V1 B7 V2 B7 V3 B7 V4 B5 V5 B5 V6 B5 V7 B5 V8 B5 V9 A5 V10 A6 V20 A3 V22 A4
F02 I01
Mono carrier copper track side
TILT
5 7000 4 1 6 12 7901
L01
V04
AUDIO OUTPUT
500mV / div DC 20µs / div L02
10V / div DC 20µs / div V05
TV-PROC.
7200
1
9631 9641
SDM
500mV / div DC 20µs / div L03
10V / div DC 20µs / div V06
BTSC DBX
1 26 7831
BTSC NDBX
200V / div DC 20µs / div L04
10V / div DC 20µs / div V07
7861
52
27
20V / div AC 5ms / div L06 L07 L10 L11 P01 33V7 DC 51V DC 8V2 DC 13V DC 148V DC
10V / div DC 20µs / div V08
9 7471 1
10V / div DC 5ms / div V09
P02
18
10
2
POWER TRAFO 5520
D G S
FRAME
6 7 8 5 9 LOT 5445 10 11 1 12
20V / div DC 2µs / div P03 P04 P05 P06 16V1 DC 3V3 DC 12V DC 126V DC
500mV / div DC 10µs / div V10
9
1
4
3
7520
8 5
7521
1V / div DC 10µs / div S01
SUPPLY CONTROL HOT GROUND
SUPPLY E/W
D G S B C E
LINE
7460
10V / div DC 20µs / div S02
7400
10V / div DC 20µs / div S03
CRT panel copper track side
A01
A05
A08
A10
A12
A15
C02
C05
200mV / div AC 1ms / div 9 8 7 6 5 4 A04 200mV / div AC 1ms / div 10 11 12 A02
200mV / div AC 1ms / div A06
200mV / div AC 1ms / div A08a
200mV / div AC 1ms / div A11
200mV / div AC 1ms / div A13
10V / div DC 1ms / div A16
500mV / div DC 1ms / div C03
10V / div DC 100µs / div C06
50mV / div DC 5ms / div F03
0.1V / div DC 200µs / div I02
500mV / div DC 5ms / div S04
200mV / div AC 1ms / div A07
200mV / div AC 1ms / div A09
200mV / div AC 1ms / div A11a
10V / div DC 20µs / div A14
10V / div DC 1ms / div C01
200mV / div DC 1ms / div C04
10V / div DC 2ms / div F01
1V / div DC 5ms / div F04
0.1V / div DC 200µs / div I04
500mV / div DC 5ms / div S05
200mV / div AC 1ms / div
200mV / div AC 1ms / div
200mV / div AC 1ms / div
200mV / div AC 1ms / div
10V / div DC 20µs / div
500mV / div DC 1ms / div
10V / div DC 100µs / div
50mV / div DC 5ms / div
0.2V / div DC 5ms / div
1V / div DC 20µs / div
500mV / div DC 5ms / div
CL 16532119_007.eps 191202
Circuit Diagrams and PWB Layouts
L01.1A AC
7.
26
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
1 2 3 4 5 6 7
HOT COLD
1515 G5PA 0212 3 4 BAS316 1 2 9505 2 3504 4 3 2 1
DEGAUSSING COIL
8
9
VlotAux+13V 2581
10
For AV Video
11
POWER SUPPLY
A
22u 3565 330R 6580 3580 47K 3558 +3.9V 330R 3557 1K 3590 7560 2580 47u 150R 9510 3591 K A2 A1 6565 BAV70
A
TO 1505 OF /
7580 BC857B 12V4 11V8
+t
ZPB 5502
*
5 6 7 8
2515
0V
LE33CZ
3 3V3 12V 1 IN GND OUT 2 0V 2567 47u 2590 +3.3V P4
1n5
9504 2516
MainSupplyGnd 6582 STPS10L60D 2562 1n 6561 9511 3564 2K2
B
MAINS 150 - 276 V SINGLE RANGE 90 - 276 V FULL RANGE
3510
*
2506 0213
9503 3509 2502 2 2n2 4 3511 6500 1
t
B57237
*
P1 EAR
2u2
P5 12V MainAux 12V 7564 BC857B 2566 11V5 470u 3567 2K2 11V8 7562 BC857B -3V2 11V5 AudioSupplyGnd A5-90 3568
B
9500 0231
3503
*
6 4 3
*
2 1
* * *
V V
1500 1 2500 470n
"$"
5562 3561 5520 220R
2503
2501
2n2
2509
2564
1M5
2m2
2 1
2 1
for ITV only
*
6562 EGP20DL
FOR ITV ONLY
2
3
DMF-2405
1 4 DMF-2820
18 17
2 3 P2 16 3532 4 2K2 7521 5 2508 470p D S BZX284-C22 0V4 5521 8 2523 15 14 13 12 11 10 7522 BC847B 0V 1N4148 3531
C
47R
9502
3506
3
3560
SDW
5
*
2n2
5501
2504
2505
2
5500
3
RES
T4E.250V
* * *
9508 4
* * * *
9506 USA ONLY
*
* *
SB340
0R1
OR TO 0283 OF
0211
MAINS SWITCH 9501 3500 3M3
9509 3508
9507 3507 DSP
C
*
2V8
3529
47K 6523
4K7
0V 3V 3530 10K
G
6563 BAS316
3562 12K
3501
3M3
"$"
2563 3563 100n 6567 +3.3V 8K2 -3V2 3V2 POWER_DOWN A7-11 A2-11
6526
1n5
2507
P3 3528 16V8 (13V8) 1
7520 TEA1507
Vcc SUPPLY MANAGEMENT START-UP CURRENT SOURCE VALLEY VOLTAGE CONTRLLED OSCILLATOR HVS START-UP CURRENT SOURCE OVER TEMPERATURE PROTECTIOM LOGIC CONTROL CIRCUIT CURRENT SENSING Driver Sense Demag Drain
470p
D
9
15K
4500
3570
OR
*
*
6564 BAS216
EW_protection A2-9
8
"$"
2522 3525 100n 3524 3526
2560 5560
*
5564 2561
D
6524
680p
6560
2526
6522
22u
2521
1N5062
*
*
0V 2
Gnd
7 0V 4 0V
BYV29X-500
3527 2527 56K
100u
*
0V 7561 PDTC143ZT 5561 27u 220K 220K 3595 3596 P6 140V MainSupply
Jumper
6525 6568 BYW76
1K
FREQUENCY CONTROL
*
*
5 0V 3523
FOR ITV ONLY
0251 1 2 3
BYD33D
E
6520
*
17V 3 470p 3519 270R 7515 TCET1104G 4 1V7 (12V)
3594 10V (7V7) 1 3541 2 9V (6V7) 9V 470R 6V8 7541 6V8 470R PDZ-10B 6541 3542 1K5 3548 15K 10n 3543 2540 8V8
E
TO 0251 OF
1V3
3
Ctrl
BURST DETECTOR
3521
*
82K
MAXIMUM ON-TIME PROTECTION
3522
OVER POWER PROTECTION
*
2525
INPUT CONTROL CIRCUIT
POWER-ON RESET
OUTPUT DRIVER
1n
6 2V
RES 1540
4
Vcontrol A2-100
BZX79-B6V2
3545
3569
4K7
0V 5K6 2541 7542 1K2 BC857B 0V 1n 3552 10K 0V
6540
39K 3544
3550
F
2520 100n 3520
BC547B
For ITV only
RES
PDTC114ET
0V
7540
TO 0283 OF
0282
F
OF
TO
Stdby_con
P1 P2
148V DC
MainSupplyGnd 6566 1N4148 2569 A7-5
"$"
5565 9530
6570
FOR MAINS 120V AC 170V (177V) 220V AC 309V (317V) -V NORMAL OPERATION
1V8
*
3566 2K2 2568
6569 BAS216
RES
G
20V / div DC 2µs / div P3 P4 P5 P6 16V1 DC 3V3 DC 12V DC 126V DC
HOT (-V) STANDBY OPERATION HOT GROUND COLD GROUND
COLD
1u
G
* FOR DIVERSITY LIST SEE PAGE 39
CL 36532039_013.eps 010503
0211 C1 0212 A1 0213 B5 0231 C1 0251 E11 0282 F11 1500 B2 1515 A8 1540 F10 2500 C3 2501 C6 2502 B6 2503 C6 2504 C7 2505 C7 2506 B5 2507 D7 2508 C7 2509 C4 2515 B7 2516 B7 2520 F2 2521 E1 2522 D6 2523 D6 2525 E5 2526 D2 2527 E7 2528 E2 2540 E9 2541 F8 2560 D9 2561 D9 2562 B9 2563 D9 2564 C9 2566 C9 2567 B10 2568 G8 2569 G10 2580 B9 2581 A9 2590 B10 3500 C1 3501 D1 3503 C5 3504 A3 3506 C4 3507 C4 3508 C3 3509 B5 3510 B4 3511 C5 3519 E6 3520 F2 3521 F2 3522 E5 3523 E5 3524 E6 3525 D6 3526 E6 3527 E7 3528 D2 3529 D4 3530 D6 3531 D5 3532 C6 3541 E8 3542 E9 3543 E10 3544 F10 3545 F9 3548 E9 3550 F10 3552 F8 3557 A9 3558 A9 3560 C9 3561 C8 3562 D9 3563 D10 3564 B10 3565 A9 3566 G8 3567 C9 3568 C10 3569 F8 3570 D10 3580 A9 3590 A9
3591 B9 3594 E9 3595 E10 3596 E10 4500 D10 5500 C4 5501 C3 5502 B5 5520 C7 5521 D7 5560 D8 5561 E10 5562 C8 5564 D9 5565 G2 6500 B6 6520 E2 6522 D2 6523 D5 6524 D7 6525 E7 6526 D6 6540 F9 6541 E8 6560 D9 6561 B9 6562 C9 6563 D9 6564 C11 6565 A11 6566 F10 6567 D9 6568 E9 6569 G9 6570 G7 6580 A9 6582 B9 7515 E7 7520 D2 7521 C6 7522 C5 7540 F9 7541 F8 7542 F8 7560 A10 7561 D10 7562 C9 7564 C10 7580 A8 9500 B2 9501 C2 9502 C2 9503 B5 9504 B5 9505 A3 9506 B4 9507 C4 9508 B3 9509 C3 9510 B9 9511 B10 9530 G2
1
2528
2
3
4
5
6
2n2
7
1
8
9
10
11
Circuit Diagrams and PWB Layouts
L01.1A AC
7.
27
Mono Carrier: Line Deflection
1 2 3 4 5
* 9453
MainSupply
6
9451 RES 5451 27u 2451 3485
7
8
9
10
11
LINE DEFLECTION
A
0220
EHTinfo A2-16 VideoSupply VlotAux+13V MainSupplyGnd
5 2 1
* 3487
4R7 2450 47u
1.9V 3465 2482
EHTinfo A2-16 A5-16 A6-16
RES
RES
*
*
A
*
TO 0244 OF CRT PANEL
3486
0289
*
2420
LOT
2448
9420
3 4
*
HORIZONTAL
VlotAux+13V
1 4
3469
0V5
Hflybk A6-18 AK
3483
DEFLECTION COIL 6452 0221 VH 2459 680p 3
EHT
8K2
5450
2452
180p
B
Filament A2-69 Bass_panorama A7-7
* 1400 * G5PA
4
2422
For ITV Only
*
TO PICTURE TUBE 3
FOCUS
BAV99 6449
K 5V A 0V
RES
* 2423
* 5445
3490
3K3
B
L5
200V VideoSupply
2454
2453
L.LIN
5457
2485
2492
3489
7444
DAF
3461
6464 5453 6469 22u
3484
0V
6
3K9 6483
1411
1K
RES
MainAux
3458
BAS216
*
*
6487 BYD33D
*
3488 4R7
BZX79-C33
*
MainAux
0V
10
*
3481
3482
4u7
3n3
*
2
0319
1
2421
*
OR TO 0221 OF
TO CRT PANEL
6485 BYD33J
*
*
3494 4R7
13V3
/
1
VG2
L6 L7 L11 3460
VT_Supply
C
6467 4430 BAS216 6468
VlotAux+13V
4431
5 PANORAMA 2490 2458 BAV21
3K9
VlotAux+50V VlotAux+13V
C
* *
11
BYD33M 3493
6466
5452 L2 3 6 7460 BU4508DX
0V
L3
7 2457
2481 470p
126V
9423
3459
6490
2456
3455
BAS216 3492 1K
2489
12 8
3499
6486 EGP20DL
RES
BAV21
2465
6465
47u 2486
220u
2463
1 5461
5V2
L1 2460
33R
7461 BC337-25
5V2
5V5
2455 47u
*
*
2484 RGP30J 2462 9461 9462 2467 2470 2466 2468
* 9460 *
2469
9
0321
6481 6488
BZX79C5V6
100R
3450
3463
1m
0V
2488
6461
2461
5V2 0V
3 5465 4 3 5464 4
2 CU15 1 1 CU20d 2 5463
CI-15
E
Hdrive A6-21 1V5
6463 UDZS-10B
5V2
7463 BC327-25 6462
*
6400
3430
BZX284-C10 2441
3468
9464
5400
CU15
5401
13V3
7462 PDTC143ZT
*
3401
0R
1u
0V
6445
3456
*
*
2493
2464
*
*
*
6447
*
1N4148
3431
3411
9424 6402
3451
F
* *
TV 1410
For Picture Width Control (reserved)
5K6
L4 3402 2400
3445
15K 3446
2401
9426 6403
3403
/
2444
3454
1u
*
* G
EWdrive|EWD_dyn A6-22
3408
3405
3406
3407
ONLY FOR SETS WITH E/W CORRECTION
*
*
*
*
0322
2404
1
2
*
D
2405
2480
349111V6
6460
*
*
470u
5V7
4R7
7482 BD135
470u
*
*
6R8
15K
100MHZ
9422 3464
2487
47u
+13V 9V 5V VlotAux+5VA
L9
D
3449 100R
+8VB
L10
2415
*
*
*
*
*
*
1402
1
EGP20DL 2491
9V
8V
* * *
*
TO N/S CORRECTION BOARD 0213 FOR CHINA ONLY
3448 7480 BD135
VlotAux+13V 8V9
2 3
*
5480
VlotAux+13V VlotAux+5VA
3447
* 6482
BZX79-C9V1
Filament A2-69
*
7441 BC857B
13V3 5V
E
A3-65
3400
+13V
* 9463
*
3441 100R 3443 1M 2443 47n
Vguard
*
BLK-IN RES A5-36
3442 1K
* *
1412 6453 7450 PDTA114ET 3457
POWER_DOWN
* *
2402
*
6401
BZX384-C6V8 0R
EHTo
A1-11
F
* *
* * *
L1 L2
0298 TO DAF TO 0261 CCT. OF PANEL
3452
*
5V6
2V
3453 1K 6448
A6-23 VlotAux+13V
6V3
7443 BC557B
3404
137V D G 0V S 0V
BZX79-B6V2
Vcontrol A1-100 EW_protection A1-9
3410 10K
L3 L4 L5 L6 L7 L9 L10 L11 191V DC 33V7 DC 51V DC 5V DC 8V2 DC 13V DC
*
G
7400
*
500mV / div DC 20µs / div 500mV / div DC 20µs / div 200V / div DC 20µs / div 20V / div AC 5ms / div
* FOR DIVERSITY LIST SEE PAGE 39
CL 36532039_014.eps 010503
0220 A2 0221 B6 0289 A8 0298 F6 0319 B2 0321 D8 0322 G5 1400 B4 1402 E7 1410 F7 1411 C2 1412 F11 2400 F4 2401 F4 2402 F3 2404 G5 2405 D3 2415 E3 2420 B4 2421 B4 2422 B4 2423 B4 2441 F9 2443 F10 2444 G8 2448 A9 2450 A5 2451 A6 2452 B2 2453 B5 2454 B5 2455 D3 2456 D6 2457 D6 2458 C6 2459 B6 2460 D2 2461 E2 2462 E4 2463 D4 2464 F6 2465 D4 2466 E5 2467 E5 2468 E5 2469 E6 2470 E5 2480 D9 2481 D8 2482 A10 2484 E6 2485 C10 2486 D9 2487 D9 2488 D9 2489 D10 2490 C6 2491 E8 2492 C10 2493 F5 3400 E3 3401 F3 3402 F3 3403 G3 3404 G3 3405 G4 3406 G4 3407 G4 3408 G5 3410 G5 3411 F4 3430 E6 3431 F6 3441 E10 3442 F9 3443 F10 3445 F8 3446 F8 3447 E9 3448 E10 3449 D10 3450 D10 3451 F8 3452 F8 3453 F10 3454 G9 3455 D9 3456 F9 3457 F10 3458 C6
3459 D6 3460 C10 3461 C6 3463 D4 3464 D8 3465 A10 3468 F2 3469 B9 3481 C8 3482 C9 3483 B10 3484 C9 3485 A6 3486 A6 3487 A5 3488 C9 3489 C3 3490 B9 3491 D2 3492 D2 3493 D3 3494 B9 3499 D2 4430 D2 4431 C2 5400 F4 5401 F4 5445 B7 5450 B2 5451 A6 5452 D4 5453 C3 5457 C6 5461 D3 5463 E6 5464 E6 5465 E6 5480 E8 6400 F3 6401 F5 6402 F3 6403 F3 6445 F8 6447 F8 6448 G10 6449 B9 6452 B4 6453 F10 6460 D4 6461 E4 6462 E2 6463 E2 6464 C2 6465 D5 6466 D5 6467 C2 6468 C2 6469 C3 6481 D10 6482 E10 6483 C9 6485 B8 6486 D8 6487 C8 6488 D8 6490 D2 7400 G4 7441 E9 7443 G9 7444 C4 7450 F9 7460 D3 7461 D2 7462 F1 7463 E2 7480 E9 7482 D10 9420 B2 9422 D8 9423 D2 9424 F3 9426 F3 9451 A6 9453 A5 9460 D6 9461 E5 9462 E6 9463 E6 9464 F6
BYD33M
*
*
* *
*
*
3 4
5
6
7
8
9
10
11
Circuit Diagrams and PWB Layouts
L01.1A AC
7.
28
Mono Carrier: Frame Deflection
1
2
3
4
5
6
MODEL REGION TUBE SET 2472 3470 3471 3472 3473 3480 4470 5471 5472 9472
7
8
L2K3 EU PHCO 28WR 63V 150N 470K 2R2 3R3 3R9 1R5 --6U8 3MUH3 --32WR 63V 150N 270K 3R9 3R3 3R9 1R5 --6U8 3MUH3 --29RF 63V 150N 330K 3R3 3R3 3R3 1R5 --3U3 6MUH8 --LG.PH
9
AP LG.PH 24WR 63V 150N 470K 2R2 3R3 3R9 1R5 --3U3 3MUH3 --21RF
10
GL SMGK(SF) 21RF CH/IN LG.PH 29RF 63V 150N 470K 3R9 3R9 --1R5 --3U3 3MUH3 ---
FRAME DEFLECTION
A
+13V
100V 10N 100V 10N 270K 470K 3R9 3R9 4R7 3R9 6R8 ------SMD_JUMPER SMD_JUMPER 6U8 6U8 3MUH3 6MUH8 JUMPER JUMPER
A
2471
5472
B
7471 TDA8359J
100n
VlotAux+50V
B *
2473 100n
VlotAux+5VA K 5V A -0V3
0222 C8 2471 B5 2472 C6 2473 B7 2474 D3 2475 D3 2476 C7 3470 C6 3471 D7 3472 D7 3473 D7 3474 D3 3475 D3 3477 C7 3478 D7 3479 D7 3480 D6 3495 C7 3496 C7 3497 C7 3498 C3 4470 C6 5471 C7 5472 B7 6470 B8 6476 C6 7471 B4 9471 C7 9472 C6
3498
12K
8 VOG
3 VP
6 VFLB
3470
*
4470
6470 BAV99
AK 5V Vguard A2-65
13V
48V
0V
GUARD BZX79-C12 9472
3495 22K 100K 3496
2476 2n7 100K 3497
INPUT/FEEDBACK
F1
Vdrive+ A6-19 1V
A 7 VOA
7V
6476
C
1 VI+
F3
1 2
C
0222
1:1
25uA
5471 150R 3477
2472
2474
3474
2K2
2n2
*
3480
* 9471
F4
VERTICAL DEFLECTION COIL
F2
R 1V
VM 9
6V
D
VdriveA6-20
2 VIR R
*
150R
3478
B VOB 4
6V
D
3479 2K7 3472 3471 3473
2475
3475
2K2
2n2
*
*
*
GND
0V
5
E
E
REGION TUBE ITEM SMGK 21RF
NAFTA TOS 34RF LG.PH 32V LG.PH
LATAM LG.PH 28WSRF SMGK 34RF LG.PH 34RF LG.PH 29RF
AP ORION 29RF LG.PH 25RF LG.PH 21RF MMEC 21RF
F1 F2 F3 F4
32WSRF
F
2472 3470 3471 3472 3473 3480 4470 5471 9472
63V 150N 63V 150N 63V 150N 63V 150N 63V 150N 63V 150N 100V 150N 63V 150N 63V 150N 63V 150N SM0805 390K SM0805 470K SM0805 390K SM0805 270K SM0805 470K SM0805 220K SM0805 220K SM0805 470K SM0805 470K SM0805 470K 4R7 3R3 3R9 3R3 4R7 3R9 3R9 3R9 3R9 3R9 2R2 2R2 3R3 3R9 3R9 3R3 2R2 3R9 3R9 3R9 3R3 2R2 3R9 2R2 3R9 3R9 3R3 2R2 3R3 2R2 --1R5 1R5 1R5 1R5 1R5 1R5 1R5 1R5 1R5 --------------------6U8 6U8 3U3 3U3 6U8 6U8 6U8 3U3 6U8 6U8 ---------------------
100V 10N 100V 10N 270K 270K 5R6 5R6 3R3 3R3 6R8 6R8 --------6U8 6U8 -----
F
50mV / div DC 5ms / div 50mV / div DC 5ms / div 1V / div DC 5ms / div 0.2V / div DC 5ms / div
CL 36532039_002.eps 010503
1
2
3
4
5
6
7
8
9
10
Circuit Diagrams and PWB Layouts
L01.1A AC
7.
29
Mono Carrier: Tuner IF
1
2
3
4
FM-RADIO ANTENNA 0265
5
6
7
8
9
TUNER IF
I1
VT_Supply VlotAux+5V
I2
I4
A
1 2 3 2010 2005 1n0 10u
A
0.1V / div DC 200µs / div 0.1V / div DC 200µs / div 1V / div DC 20µs / div
5001
* B
TO 0282 OF FOR ITV ONLY 0285 12 13 FOR EMC ONLY 0283 14 15
1000 PS1316 AGC 1 2 6 9 34V5
*
3003 1K5
2006
470u
2007
2004
(OPTIONAL)
SCL SDA +5V 7
FM IF
11 6002
AS 3 SCL 3000 100R I2 SDA A7-14 3001 100R
ADC 8
4.3V
4.3V
4
5
4.9V
47n
MT
10
I4
RES
6003
100n
TUNER + FM RADIO
FM-ANT +5V VT
B
3005 100R
RF_AGC A5-25
C
A7-13
RES
I1 I3 3002
C
*
JMP
RES
+8V
FM
3010
3007
3008
3009
A5-24
3011
*
*
BA792
*
RES
6005
RES
D
* *
*
RES
*
9001 1 2
1002 4 VIF_1 A5-27
D
3006
6004
4005
4006
*
RES
5 3
VIF_2 A5-26
0265 A4 0283 C2 0285 B2 1000 B3 1002 D7 1003 E7 1004 F7 2001 D3 2002 D3 2003 D5 2004 B5 2005 A5 2006 B6 2007 B6 2008 C5 2009 C7 2010 A4 3000 C3 3001 C3 3002 C6 3003 B7 3004 C7 3005 C7 3006 E5 3007 D5 3008 D5 3009 D6 3010 D3 3011 D4 4001 D5 4002 F7 4003 E6 4004 E7 4005 E6 4006 E5 4011 F7 4012 G7 5001 B6 5002 C5 5003 F8 6001 A5 6002 C6 6003 C6 6004 E5 6005 E6 6006 F4 6007 F4 7001 F5 7002 F6 9001 D6
BZX79-C33
6001
2008
5002
100u
3004
2009
8K2
2001
RES 2002
2003
4001
10n
*
22n
E *
5V COMB_BYPASS A7-3 6006 0V 0V 4003
10 1
*
1003 O1 4
E
SWI
IN ING GND 3 O2 8 5
* *
7001 7002 RES
4004
2
* *
1 4011 2 3 1004 4 SIF_1 A5-28
F
IF ITEM 1002 AP-multi CH-multi NA/LA/AP-NTSC F072 M1971 ----------Jmp Jmp ---------
1N4148 6007 1N4148
4002
F
5003
G
K2978 K7257 K7260 1003 K6274 2003 10n 10n 3006 2K2 2K2 3007 6K8 6K8 3008 2K2 2K2 4001 Jmp --4002 Jmp --Jmp 4003 Jmp --4004 Jmp 1SS356 6004 1SS356 7001 PDTC124ET PDTC124ET
5
*
SIF_2 A5-29
RES
4012
Tuner ITEM LNA (AP) AP NA LA/AP-NTSC
*
ENV56 TEDH9-200A TEDH9-200A UV1336 27u 5u6 820n 820n
CL 36532039_015.eps 010503
1000 UV1356A TEDH9-228 5001 5002 47u 820n 47u ---
G
1
2
3
4
5
6
7
8
9
Circuit Diagrams and PWB Layouts
L01.1A AC
7.
30
Mono Carrier: Video IF + Sound IF
1 2 3
3221 +8V 560R 2220 470n 2V9 3V5 7205 BC857B 0V 100R 5202 +8V SET WITH PIP 10u 9202 +8VA QSS_AM_DEM_OUT
4
5
3222
6
7
8
9618
9
10
11
CVBSO V_OUT V1-OUT A10-A A13-40 A13-41
VIDEO IF + SOUND IF
A
SC1_LIN A13-32 4213 100R 3220 680R 390K 3216 3228 3231 +8V 68R
V4
A5-42 A9-42 A10-42 A11-42
A
* *
3V2 38 7200-A TDA95XX 35
LFRONT-IN A12-31
2V5
3215
4V
39
RES
2212
B
SS_C-IN A10-30A
FOR ITV ONLY 0249 SET WITH SVHS 2221 220n 2205 220n 22n FOR ITV ONLY 0248 2V3 2V9 SSY_CVBS-IN 2202 7200-C TDA95XX 3V7 28 0276 CVBS1-IN A13-38 3638 9620 2201 3V7 29 1V5 45 3V3 44 3V3 42 3V8 40 41 2203 100n 43
VIDEO FILTERS VIDEO IDENT Y U V RGB/YUV INSERT BLACK STRETCH WHITE STRETCH LUMA DELAY PEAKING
I/O SWITCHING
560R
7V8
4212
4210
2208
SET WITH VIDEO OUT
2V6 7206 BC847B 270R 3230
25 18 1V9
VIDEO VIDEO PLL DEMOD. VISION IF AGC/AFC AMPL
VIF_1 VIF_2 RF_AGC SIF_1 SIF_2 A4-27 A4-26 A4-25 A4-28 A4-29
2V 4211 for M'nas only 4203 V10 49
B
2219
3V6
7208 BC857B 2V9
19 1V9 22