Philips 21PT9457 Service Manual

Published by JY 0769 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 17450
©
Copyright 2007 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.
Colour Television Chassis
SK4.0L
CA
H_17210_000.eps
070607
Contents Page
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 4
3. Directions for Use 6
4. Mechanical Instructions 7
5. Service Modes, Error Codes, and Fault Finding 9
6. Block Diagrams, Test Point Overviews, and
Waveforms
Block Diagram Chassis 11
Schematic Overview Chassis 12
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply (A1) 13 21-22
Mono Carrier: Line Deflection (A2) 14 21-22
Mono Carrier: Frame Deflection (A3) 15 21-22
Mono Carrier: Tuner IF (A4) 16 21-22
Mono Carrier: AV Switch (A5) 17 21-22
Mono Carrier: Audio Amplifier (A6) 19 21-22
Mono Carrier: Tone Control (Optional) (A7) 18 21-22
Mono Carrier: CPU & Decoder (A8) 20 21-22
Keyboard Control Panel (D) 23 24
Main Switch Panel (E) 25 25
Side A/V Panel (G) 26 26
BTSC Panel (G) 27 27
Slim EW Panel (M) 28 28
Sub Woofer Panel (Optional) (Z) 29 30
8. Alignments 31
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 36
Abbreviation List 37
IC Data Sheets 38
10. Spare Parts List 53
11. Revision List 56

Philips 21PT9457 Specifications

Picture and Display

aspect ratio	4:3
diagonal screen size	21 inch / 53 cm
visible diagonal screen size	51 cm

Sound

output power (RMS)	2 x 3W
sound system	Stereo, SAP
sound enhancement	Balance, Incredible Surround, Treble and Bass Control

Tuner and Reception

aerial input	75 ohm F-type
number of preset channels	181
tv system	NTSC, PAL M, PAL N

Power

mains power	AC 100-240V, 50/60Hz
power consumption	72 W
standby power consumption	<3W

Weight and Dimensions

set dimensions (W x H x D)	594 x 461 x 327 mm
box dimensions (W x H x D)	660 x 532 x 396 mm
product weight	20 kg