Philips hts 3181 service manual

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DVD Home Theater SyStem HTS3181/55&HTS3181X/78

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TABLE OF CONTENTS
Chapter
LASER BEAM SAFETY PRECAUTIONS ....................................................................................... 12
STANDARD NOTES FOR SERVICING .................................................................................................... 1-3
SAFETY AND IMPORTANT NOTICE ...................................................................................................... 1-7

LOCATION OF PCB BOARDS&VERSION VARIATION
OPERATING CONTROLS AND FUNCTIONS ................ ..
SPECIFICATIONS ...................................................................................................................................... 3-1

MEASUREMENT SETUP ..................................................................................................................... 3»2 .
SYSTEM,REGION CODE,ETC..SETTING PRODURE
RETURN UNIT TEST FLOW ......................................

MAIN UNIT REPAIR CHART IIIII

DISASSEMBLY INSTRUCTIONS .
BLOCK WIRING DIAGRAM ......
AMPLIFIER BOARD.
LED + KEY BOARD
DECODE BOARD
POWER BOARD.
MECHANICAL EXPLODE VIEW &PART LIST
REVISION LIST ........................................

l" Copyright 2009 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No parl of this publication may be reproduced, stored in a relrieval system or
Iransmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.

Published by RY0929 Service Audio Primed in The Netherlands Subject to modification 3139 785 35050

Version 1.0

QQ PHILIPS

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LASER BEAM SAFETY PRECAUTIONS

This DVD player uses a pickup that emits a laser beam.

EI' Do not look directly at the laser beam
coming from the pickup or allow it to
strike against your skin.

The laser beam is emitted from the location shown in the figure. When checking the laser
diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is
turned on. Do not look directly at the laser beam.

CAUTION: Use of controls and adjustments, or doing procedures other than those specified
herein, may result in hazardous radiation exposure.

Drive Mechanism

Assembly \E }

Laser Pickup

Turntable

CAUTION
LASER RADIATION

WHEN OPEN. DO NOT
STARE INTO BEAM.

Location: Top of DVD mechanism.