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Philips L01.2A AB Service Manual

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Colour Television
Contents
©
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 0561 Service PaCE
Printed in the Netherlands
Page
4
6
7
8
15
16
17
Diagram
PWB
(A1) 18
30-35
(A2) 19
30-35
(A3) 20
30-35
(A4) 21
30-35
(A5) 22
30-35
(A6) 23
30-35
(A7) 24
30-35
(A8) 25
30-35
(A9) 26
30-35
30-35
(A12) 28
30-35
30-35
(B1) 36
37
38
39
41
47
58
61
Subject to modification
Chassis
L01.2A
AB
(SMALL SCREEN)
CL 16532016_FSS.eps
050401
EN 3122 785 12751

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Summary of Contents for Philips L01.2A AB

  • Page 1: Table Of Contents

    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 0561 Service PaCE...

  • Page 2: Technical Specifications, Connections, And Chassis Overview

    EN 2 L01.2A AB Technical Specifications, Connections, and Chassis Overview 1. Technical Specifications, Connections, and Chassis Overview Index of this chapter: A/V connections : NTSC 3.58, 4.43 1.1 Introduction : PAL 60 1.2 Connections Channel selections : 100 channels 1.3 Chassis Overview : U, V, S, H : 75 Ω, IEC-type...
  • Page 3 Technical Specifications, Connections, and Chassis Overview L01.2A AB EN 3 1.2.2 Rear Connections YUV In (if present) 0.7 Vpp / 75 Ω 0.7 Vpp / 75 Ω 0.7 Vpp / 75 Ω 75 Ohm MONITOR AV1 In CVBS (1 Vpp / 75 Ω)

  • Page 4: Safety Instructions, Warnings, And Notes

    EN 4 L01.2A AB Safety Instructions, Warnings, and Notes 2. Safety Instructions, Warnings, and Notes Index of this chapter: 3. Clean the picture tube panel and the neck of the picture 2.1 Safety Instructions For Repairs tube. 2.2 Maintenance Instructions 2.3 Warnings...
  • Page 5 Lead Free Solder • All resistor values are in ohms and the value multiplier is Philips CE is going to produce lead-free sets (PBF) from often used to indicate the decimal point location (e.g. 2K2 1.1.2005 onwards. indicates 2.2 kohm).

  • Page 6: Directions For Use

    EN 6 L01.2A AB Directions for Use You will find this and more technical information within the dangerous impact, others of quite high potential are of "Magazine", chapter "Workshop information". limited current and are sometimes held in less regard. For additional questions please contact your local repair help •...

  • Page 7: Mechanical Instructions

    Mechanical Instructions L01.2A AB EN 7 4. Mechanical Instructions Index of this chapter: Side I/O Panel Removal 4.1 Rear Cover Removal 4.2 Service Position Main Panel 1. Remove the complete Side I/O assembly after unscrewing 4.3 Side I/O Panel Removal the 2 fixation screws [1].

  • Page 8: Service Modes, Error Codes, And Fault Finding

    EN 8 L01.2A AB Service Modes, Error Codes, and Fault Finding 5. Service Modes, Error Codes, and Fault Finding Index of this chapter: 5.2.1 Service Default Mode (SDM) 5.1 Test Points 5.2 Service Modes Purpose 5.3 Problems and Solving Tips (Related to CSM) •...
  • Page 9 Service Modes, Error Codes, and Fault Finding L01.2A AB EN 9 Specifications • Operation hours counter. • Software version. • Option settings. • Error buffer reading and erasing. A A A B C D E E X . Y S D M •...
  • Page 10 EN 10 L01.2A AB Service Modes, Error Codes, and Fault Finding – Activate the selected submenu. 10. Value indicates parameter levels at CSM entry (only for • When you press the MENU button twice, the set will switch stereo sets). TR= TREBLE, BS= BASS to the normal user menus (with the SAM mode still active in the background).
  • Page 11 5.4.1 Introduction 5.4.3 How to Connect ComPair (Computer Aided Repair) is a service tool for Philips 1. First install the ComPair Browser software (see the Quick Consumer Electronics products. ComPair is a further Reference Card for installation instructions). development on the European DST (service remote control), 2.
  • Page 12 EN 12 L01.2A AB Service Modes, Error Codes, and Fault Finding 5.4.4 How to Order – 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 ComPair order codes: picture).
  • Page 13 Service Modes, Error Codes, and Fault Finding L01.2A AB EN 13 The Blinking LED Procedure time, measure the ‘+8V’. If this voltage is missing, check transistor TS7480. • Set is non-stop in hiccup mode Set is in over current Via this procedure, you can make the contents of the error mode;...
  • Page 14 EN 14 L01.2A AB Service Modes, Error Codes, and Fault Finding Personal Notes: E_06532_012.eps 131004...

  • Page 15: Block Diagrams, Testpoints Overviews, And Waveforms Block Diagram

    Block Diagrams, Testpoints Overviews, and Waveforms L01.2A AB EN 15 6. Block Diagrams, Testpoints Overviews, and Waveforms Block Diagram REAR I/O CINCH AUDIO/VIDEO AUDIO AMPLIFIER FRONT CONTROL CONTROL +3.3V +3.3V SOURCE SWITCHING MONO SETS ONLY CVBS1-IN 7801 7941:7943 WITHOUT 7602...

  • Page 16: Testpoint Overview

    Block Diagrams, Testpoints Overviews, and Waveforms L01.2A AB EN 16 Testpoint Overview Main Panel Copper Track Side AUDIO OUTPUT 7901 OR 7902 500mV / div DC 500mV / div DC 1V / div DC 250ns / div 5ms / div 20us / div TV-PROC.

  • Page 17: I2C And Supply Voltage Diagram

    Block Diagrams, Testpoints Overviews, and Waveforms L01.2A AB EN 17 C and Supply Voltage Diagram POWER SUPPLY LINE DEFLECTION 6560 5445 VIDEO OUTPUTS ANODE CRT FOCUS FOCUS 3336 FOCUS CRT 6561 MAIN SUPPLY 3487 C-7332 5560 5563 5561 5451 5500 :...

  • Page 18: Circuit Diagrams And Pwb Layouts

    Circuit Diagrams and PWB Layouts L01.2A AB EN 18 7. Circuit Diagrams and PWB Layouts Mono Carrier: Power Supply 0211 C1 3568 C10 0212 B1 3569 F8 0213 C5 3570 C10 0231 C2 3580 A9 POWER SUPPLY 0251 E11 3591 E9...

  • Page 19: Mono Carrier: Line Deflection (A2)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 19 Mono Carrier: Line Deflection 0220 F6 7401 E2 0221 A5 7402 D4 2400 F4 7403 D2 2401 A4 7404 D2 LINE DEFLECTION 2402 B4 7405 A10 2403 E2 7406 B9 2404 B4...

  • Page 20: Mono Carrier: Frame Deflection (A3)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 20 Mono Carrier: Frame Deflection 0222 C6 (LATAM / NAFTA / AP) FRAME DEFLECTION 2471 B3 2472 C3 2473 B4 2475 C2 2476 C4 2477 B2 3471 D5 Vguard 3472 D5 A2-65...

  • Page 21: Mono Carrier: Tuner If (A4)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 21 Mono Carrier: Tuner IF 0265 A4 0283 B2 0285 B2 0309 D8 TUNER IF 1000 A3 1002 D7 FM-RADIO ANTENNA 1003 E7 1004 E7 0265 2001 C3 VlotAux+5V VT_Supply 2002 C4...

  • Page 22: Mono Carrier: Video If + Sound If (A5)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 22 Mono Carrier: Video IF + Sound IF 0243 C6 4206 F2 0248 C2 4207 E2 0249 B2 4209 D9 0266 E11 4210 B8 VIDEO IF + SOUND IF 0276 C2 4211 B8...

  • Page 23: Mono Carrier: Synchronisation (A6)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 23 Mono Carrier: Synchronisation 2241 D3 2242 D3 SYNCHRONISATION 2243 B4 2244 E4 2245 D4 2246 D6 2247 B5 2248 B6 5241 2249 C3 2250 C2 2252 C6 2254 EHTinfo 3259 3257...

  • Page 24: Mono Carrier: Control (A7)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 24 Mono Carrier: Control 0217 F3 0240 A3 0250 B2 0261 D2 CONTROL 0273 B4 0274 B9 0240 FOR ITV ONLY 0316 D4 3611 +3.3V 0317 D1 100R 1660 E7 DATA-OUT +3.3V...

  • Page 25: Mono Carrier: Audio Amplifier (A8)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 25 Mono Carrier: Audio Amplifier 0246 B10 0271 B2 0275 B4 2901 A7 AUDIO_AMPLIFIER + MONO_SOUND_PROCESSING 2902 A7 2903 A5 2904 B5 2905 B5 AUDIO AMPLIFIER 2906 C5 2907 C5 AmpOutR+ 2908 D5...

  • Page 26: Mono Carrier: Nicam + 2Cs + Btsc (A9)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 26 Mono Carrier: NICAM + 2CS + BTSC 0306 F4 0307 G4 1831 B8 2831 C8 NICAM + 2CS + BTSC (STEREO/SAP) DECODER 2832 C8 2843 2833 C4 2834 B4 2835 B4...

  • Page 27: Mono Carrier: A/V Source Switching (A10)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 27 Mono Carrier: A/V Source Switching 2801 B4 FOR EUROPE 2802 F4 AUDIO/VIDEO SOURCE SWITCHING ITEM 1x Scart With Front / 2x Scart With Front / 2x Scart W/O Front / 2803 C2...

  • Page 28: Mono Carrier: Front I/O, Control + Headphone

    Circuit Diagrams and PWB Layouts L01.2A AB EN 28 Mono Carrier: Front I/O, Control + Headphone 0214 D9 0215 C4 0218-A C2 0218-B B2 FRONT IO + FRONT CONTROL + HEADPHONE 0218-C A2 0219 C4 FRONT CONTROL 9184 0232 E4...

  • Page 29: Mono Carrier: Rear I/O Cinch (A13)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 29 Mono Carrier: Rear I/O CINCH 0223-A A10 7101 A5 0223-B F2 9101 D3 0223-C C2 9102 C3 0223-D A2 9103 C3 REAR I/O CINCH 1x Rear Video In 1x Rear Video in...
  • Page 30 Circuit Diagrams and PWB Layouts L01.2A AB EN 30 Layout Mono Carrier (Top Side) 0211 A2 2523 A3 3526 B3 7540 B3 9660 C4 0212 B2 2560 A4 3527 B3 7560 C4 9661 D5 0213 B2 2561 A4 3543 B3...
  • Page 31 Circuit Diagrams and PWB Layouts L01.2A AB EN 31 Layout Mono Carrier (Overview Bottom Side) 2001 E1 2616 D2 3240 E1 3951 E4 6580 C4 2002 E1 2618 D3 3241 E2 4001 E1 6581 C5 2003 E1 2619 D2 3242 E3...
  • Page 32 Circuit Diagrams and PWB Layouts L01.2A AB EN 32 Layout Mono Carrier (Part 1 Bottom Side) Part 1 F_12751_002a.eps 060105...
  • Page 33 Circuit Diagrams and PWB Layouts L01.2A AB EN 33 Layout Mono Carrier (Part 2 Bottom Side) Part 2 F_12751_002b.eps 060105...
  • Page 34 Circuit Diagrams and PWB Layouts L01.2A AB EN 34 Layout Mono Carrier (Part 3 Bottom Side) Part 3 F_12751_002c.eps 060105...
  • Page 35 Circuit Diagrams and PWB Layouts L01.2A AB EN 35 Layout Mono Carrier (Part 4 Bottom Side) Part 4 F_12751_002d.eps 060105...

  • Page 36: Crt Panel (B1)

    Circuit Diagrams and PWB Layouts L01.2A AB EN 36 CRT Panel VG2 F10 0165 B8 0244 G2 0245 C2 CRT PANEL 0254-A D7 1300-1 B7 2313 F3 2323 D3 160V 160V 2331 B3 2341 F6 2342 H3 2343 H3 2344 G5...
  • Page 37 Circuit Diagrams and PWB Layouts L01.2A AB EN 37 Layout CRT Panel (Top View) Layout CRT Panel (Bottom View)

  • Page 38: Side Av Panel

    Circuit Diagrams and PWB Layouts L01.2A AB EN 38 Side AV Panel Layout Side AV Panel (Top View) 0250-A B1 0250-B C1 SIDE AV 0250-C A1 0251 B4 0252 B1 0253 A4 0261 D4 0253 1152 A2 1153 C2 1154 B2...

  • Page 39: Side Av Panel + Headphone (E1) 39

    Circuit Diagrams and PWB Layouts L01.2A AB EN 39 Side AV Panel + Headphone Layout Side AV Panel + Headphone (Top View) 0232 D4 0250-A B2 SIDE AV PANEL & HEADPHONE 0250-B C2 0250-C A2 0251 B5 0252 B2 0253 A5...
  • Page 40 Circuit Diagrams and PWB Layouts L01.2A AB EN 40 Personal Notes: Personal Notes:...

  • Page 41: Alignments

    Alignments L01.2A AB EN 41 8. Alignments Index of this chapter: 8.2.1 Vg2 Adjustment 8.1 General Alignment Conditions 8.2 Hardware Alignments 1. Activate the SAM. 8.3 Software Alignments and Settings 2. Go to the WHITE TONE sub menu. 3. Set the values of NORMAL RED, GREEN and BLUE to 40.
  • Page 42 EN 42 L01.2A AB Alignments Software Alignments and Settings YDOXH Enter the Service Alignment Mode (see chapter 5). The SAM 23 23 23 23 23 23 23 menu will now appear on the screen. 23 23 23 23 23 23...
  • Page 43 OP30: AVL – OP31: WSSB • OP17: PHILIPS_TUNER0: ALPS / MASCO compatible – OP32: WIDE_SCREEN tuner is in use, 1: Philips compatible tuner is in use, Default – OP33: SHIFT_HEADER_SUBTITLE setting: 0. – OP34: CONTINUOUS_ZOOM • OP20: HUE0: Hue/Tint Level is disabled or not applicable, –...
  • Page 44 EN 44 L01.2A AB Alignments • OP37: EW_FUNCTION0: EW function is disabled. In this selection in Manual Store: If MULTI_STANDARD_EUR = case, only Expand 4:3 is allowed, Compress 16:9 is not 1 then SYSTEM = Europe, West Europe, East Europe, UK, applicable.
  • Page 45 Alignments L01.2A AB EN 45 4. Select AGC with the UP/DOWN cursor keys. 8.3.4 Geometry 5. Adjust the AGC-value (default value is 28) with the LEFT/ RIGHT cursor keys until the voltage at pin 1 of the tuner lies The geometry alignments menu contains several items to align between 3.8 and 2.3 V.
  • Page 46 EN 46 L01.2A AB Alignments DEFAULT GEOMETRY VALUES (L01 SMALL SCREEN) S A M Hor. Parallelogram Hor. Bow Hor. Shift East West Width H O R I Z O N T A L > East West Parabola V E R T I C A L >...

  • Page 47: Circuit Descriptions, Abbreviation List, And Ic Data Sheets

    Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 47 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets Index of this chapter: 9.1 Introduction The L01 is divided into 2 basic systems, i.e. mono and stereo 9.2 Audio Signal Processing sound.
  • Page 48 EN 48 L01.2A AB Circuit Descriptions, Abbreviation List, and IC Data Sheets AUDIO SOURCE SELECTION EXT. AUDIO 7801 7861 INPUT 7831 EXT. AUDIO OUT CONTROL AUDIO DECODING 7209 7210 7901 PROCESSING SELECTION FM IF AUDIO MATR. SWITCH BUFFER AMPL. 7834...
  • Page 49 Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 49 9.2.3 FM radio (if present) 7200 The FM radio uses the 10.7 MHz concept. This SIF frequency is available at pin 10 of the tuner. Via a pre-amplifier (TS7209...
  • Page 50 EN 50 L01.2A AB Circuit Descriptions, Abbreviation List, and IC Data Sheets signal. It operates in such a way that maximum stretching 9.3.7 RGB Amplifier is obtained when signals with a low video level are received. For bright pictures, stretching is not active.
  • Page 51 Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 51 9.5.2 Vertical Drive SUPPLY START-UP V CC DRAIN A divider circuit performs the vertical synchronisation. The MANAGEMENT CURRENT SOURCE clamp vertical ramp generator needs an external resistor (R3245, pin...
  • Page 52 EN 52 L01.2A AB Circuit Descriptions, Abbreviation List, and IC Data Sheets Degaussing Control Circuit B1/B2 Main Supply Focus n⋅V Mains AC Input Main Power Panel VideoSupply Supply Main Aux Filament Tilt& Rotation Degaussing GATE Circuit VlotAux +13V 3V3 Reg.
  • Page 53 Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 53 The moment that the voltage on pin 1 drops below the ‘under voltage lock out‘ level (UVLO = ± 9 V), the IC will stop switching and will enter a safe restart from the rectified mains voltage.
  • Page 54 EN 54 L01.2A AB Circuit Descriptions, Abbreviation List, and IC Data Sheets In Standby, the power supply works in ‘burst mode’. Burst mode can be used to reduce the power consumption Active/ below 1 W at stand-by. During this mode, the controller is active...
  • Page 55 Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 55 Over Power Protection 9.7.1 Introduction During the primary stroke, the rectified AC input voltage is measured by sensing the current drawn from pin 4 (DEM). This The microprocessor part of the UOC, has the complete control current is dependent on the voltage on pin 9 of transformer and teletext on board.
  • Page 56 EN 56 L01.2A AB Circuit Descriptions, Abbreviation List, and IC Data Sheets done to enable the power supply into standby burst mode, Abbreviation list and to enable this mode during a protection. This signal is ‘low’ under normal operation conditions and goes to ‘high’...
  • Page 57 Circuit Descriptions, Abbreviation List, and IC Data Sheets L01.2A AB EN 57 Headphone Service Default Mode Colour phase control for NTSC (not SECAM SEequence Couleur Avec Memoire. the same as ‘Tint’) Colour system mainly used in France Monochrome TV system. Sound and East Europe.

  • Page 58: Spare Parts List

    EN 58 L01.2A AB Spare Parts List 10. Spare Parts List Mono Carrier [A] 2250 4822 124 22652 2.2µF 20% 50V 2981 4822 124 40248 10µF 20% 63V 2252 5322 126 10511 1nF 5% 50V 2982 5322 122 34099 470pF 10% 63V...
  • Page 59 Spare Parts List L01.2A AB EN 59 3404 4822 052 10688 6.8kΩ 5% 0.33W 3628 4822 117 10833 10kΩ 1% 0.1W 6423 4822 130 42488 BYD33D 3405 4822 116 52256 2.2kΩ 5% 0.5W 3630 4822 117 11449 2.2kΩ 5% 0.1W...
  • Page 60 EN 60 L01.2A AB Spare Parts List 3312 4822 117 13577 330Ω 1% 1.25W 3313 4822 051 20109 10Ω 5% 0.1W 3314 4822 053 12183 18k 5% 3W 3316 4822 052 10689 68Ω 5% 0.33W 6161 4822 130 34278 BZX79-B6V8P 3317 3198 013 01520 1k5 2% 0.5W...

  • Page 61: Revision List

    Revision List L01.2A AB EN 61 11. Revision List Manual xxxx xxx xxxx.0 • First release. Manual xxxx xxx xxxx.1 • Chapter 7: PWB Layouts of Mono Carrier replaced by latest versions. • Chapter 7: PWB Layouts of CRT Panel replaced by latest versions.
  • Page 62 EN 62 L01.2A AB Revision List...

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