Colour Television

Chassis

LC4.31EAA

ME6

ME5FL

ME5P

G_16212_000.eps 191006

Contents

Page

Contents

Page121 122 123 124 126 130-132 130-132 130-132 134

1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 6 4. Mechanical Instructions 7 5. Service Modes, Error Codes, and Fault Finding 12 6. Block Diagrams, Test Point Overviews, and Waveforms Wiring Diagram 26" & 32" 21 Wiring Diagram 37" 22 Wiring Diagram 42" 23 Block Diagram Supply 37" 24 Block Diagram Supply 42" 25 Block Diagram Video 26 Block Diagram Audio 27 Test Point Overview Small Signal Board 28 I2C Overview 29 Supply Voltage Overview 30 7. Circuit Diagrams and PWB Layouts Diagram LCD Supply (37"): Mains Filter & Standby (A1) 31 LCD Supply (37"): Supply (A2) 32 LCD Supply (42"): Mains Filter + Stdby A (A1) 39 LCD Supply (42"): Supply A (A2) 40 LCD Supply (42"): Mains Filter + Stdby B (A3) 41 LCD Supply (42"): Supply B (A4) 42 SSB .2: Tuner and IF (B1 .. B20) 49 SSB .2: Diversity Tables B1-B6 55 SSB .2: Diversity Tables B9-B20 71 SSB .3: Tuner and IF (B01 .. 20) 82 SSB .3: Diversity Tables B01-B06 88 SSB .3: Diversity Tables B09-B20 104 Class D Audio Amplifier (26" & 32") (C) 115 Side I/O Panel (26" & 32") (D) 117 Side I/O Panel (37" & 42") (D) 119

8. 9.

10. 11.

Keyboard Control Board (26" & 32") (E) 121 Keyboard Control Board (37" & 42") (E) 122 Front IR / LED Panel (26" & 32") (ME5P) (J) 123 IR-LED and Light Sensor Panel (26"& 32") (J) 124 Front IR / LED Panel (37" & 42") (J) 125 Standby & Audio Panel: Connections (SA1) 127 Standby & Audio Panel: Standby (SA2) 128 Standby & Audio Panel: Audio (SA3) 129 OTC Flash (For 1000pg TXT) (T) 133 Alignments 135 Circuit Descriptions, Abbreviation List, and IC Data Sheets 140 Abbreviation List 141 IC Data Sheets 144 Spare Parts List & CTN Overview 148 Revision List 149

PWB 33-38 33-38 43-48 43-48 43-48 43-48 72-81

105-114

116 118 120

Copyright 2008 Koninklijke Philips Electronics N.V. 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 WS 0871 BU TV Consumer Care

Printed in the Netherlands

Subject to modification

EN 3122 785 16213

EN 2

1.

LC4.31E AA

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis OverviewIndex of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview Notes: Figures can deviate due to the different set executions. Specifications are indicative (subject to change). Presets/channels Tuner bands : 100 presets : : : : VHF UHF S-band Hyper-band

1.1.2

Sound Sound systems : NICAM B/G, D/K, I, L : AV Stereo : : : : : : : :

1.11.1.1

Technical SpecificationsVision Display type Screen size - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Resolution (H V pixels) Contrast ratio - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 : LCD, IPS : : : : : : : :

26" (66 cm), 16:9 32" (82 cm), 16:9 37" (94 cm), 16:9 26" (66 cm), 16:9 32" (82 cm), 16:9 37" (94 cm), 16:9 42" (107 cm), 16:9

Maximum power (WRMS) - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 1.1.3 Miscellaneous Power supply: Mains voltage (VAC) - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Mains frequency (Hz) Ambient conditions: - Temperature range (C) - Maximum humidity Power consumption: Normal operation (W) - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Stand-by (W) - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Dimensions (W H D cm): - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Weight (kg): - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12

25 2 15 2 15 25 2 15 2 15 2 15

: 1366 768 : : : : : : : :

1200:1 1200:1 1200:1 2400:1 2400:1 2400:1 4000:1

: : : : : : : :

110 - 240 110 - 240 220 - 240 110 - 240 110 - 240 220 - 240 220 - 240

: 50 / 60

Light output (cd/m2) Response time (ms) Viewing angle (H V degrees) - 26PF5321/10/12 - 32PF5321/10/12 - 37PF5321/10/12 - 26PF7321/12 - 32PF7321/12 - 37PF7321/10/12 - 42PF5421/10 Tuning system TV Colour systems

: 500 : 8 : : : : : : : :

: +5 to +40 : 90% R.H.

178 178 178 178 176 176 178 178 178 178 176 176 176 176

: PLL : PAL B/G, D/K, I : SECAM B/G, D/K, L/L : NTSC M/N 3.58, 4.43 : PAL B/G : SECAM L/L : : : : : : : : : VGA (640 480) MAC (640 480) SVGA (800 600) XVGA (1024 768) WXGA (1280 768) 640 480p - 2fH 720 576p - 2fH 1280 720p - 3fH 1920 1080i - 2fH

Video playback

: : : : : : : : : : : : : : : :

100 120 180 100 120 180 246 10 M; Ci < 2.5 pF.

8.2

Hardware AlignmentsThere are no hardware alignments foreseen for the 26" and 32" models. In the 37" and 42" models it can be necessary to adjust the Backlight Voltage.

8.2.1

Backlight Voltage Alignment Switch ON the set and measure the voltage between pin 1 of connector 1304 and pin 1 of connector 1309 (ground). Align R3026 until this voltage is 24 VDC 0.1 V. Note: This is the procedure for LPL displays; for other brands of LCD displays, as mentioned in the table Panel size settings, it is similar. Caution: This voltage must be aligned very precisely: when it is too high (>27 V), it can destroy the inverters. When it is too low (