Philips DVD634 Service Manual

DVD-Video Player DVD634

DVD634 /001 /021 /051

CL 26532068_000.eps

300502

Contents Page

1 Technical Specs and Connection Facilities 2 2 Safety Instructions, Warnings, Notes, and Service

Hints 3 3 Directions for Use 4 4 Mechanical- and Dismantling Instructions 14 5 Diagnostic Software, Trouble Shooting and Test

Instructions(Not Applicable) 16 6 Wiring-, Block Diagrams

Block Diagram 23

Wiring Diagram 24

Testpoint Overview Display Board 25

Testpoint Overview MPEG Board 26 7 Electrical Diagrams and Print-Layouts Diagram PWB

Power Supply Unit 27 NA

Display Board 28 29

MPEG Board: MPEG Processor 30 33-34

MPEG Board: Audio Power 31 33-34

MPEG Board: Video & SCART 32 33-34

MPEG Board: Memory 35 35 8 Alignments(Not Applicable) 37 9 Circuit Descriptions IC Data 37 10 Spare Parts List 40

Copyright 2002 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 MW 0267 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12250

EN 2 DVD634 /0X11.

Technical Specifications

1. Technical Specifications

PLAYBACK SYSTEM D VD Video Video CD & SVCD CD (CD-Recordable and CD-Rewritable) MP3 CD DVD-R & D VD+RW

VIDEO PERFORMANCE CVBS 1 Vpp into 75 ohm RGB (SCART) 0.7 Vpp into 75 ohm Black Level Shift On/Off Video Shift Left/Right

AUDIO FORMA T Digital MPEG/AC-3/DTS Compressed

Digital

PCM 16, 20, 24 bits

fs, 44.1, 48, 96 kHz MPEG MP3 MPEG Audio L3 Analogue Stereo Sound Full decoding of Dolby Digital multi-channel surround sound

A UDIO PERFORMANCE DA Converter 24 bits Signal-Noise (1kHz) 90 dB Dynamic Range (1kHz) 80 dB DVD fs 96 kHz 4 Hz - 44 kHz DVD/SVCD fs 48 kHz 4 Hz - 22 kHz SVCD/VCD/CD fs 44.1 kHz 4 Hz - 20 kHz MPEG MP3 MPEG Audio L3

TV STANDARD (P AL/50Hz) (NTSC/60Hz) Number of lines 625 525 Playback Multistandard (PAL/NTSC)

CONNECTIONS SCART Euroconnector Video Output Cinch (y ellow) Audio L+R output Cinch (white/red) Digital Output 1 coaxial

IEC958 for CDD A / LPCM/ MPEG1 IEC1937 for MPEG2, Dolb y Digital and DTS

CABINET Dimensions (w x h x d) 435 x 293 x 75 mm W eight Appro ximatel y 2.7 Kg

* typical playing time for movie with 2 spoken languages and 3 subtitle languages

Specifications subject to change without prior notice

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Safety Instructions, Warnings, Notes, and Service Hints

2. Safety Instructions, Warnings, Notes, and Service Hints

EN 3DVD634 /0X1 2.

2.1 Safety Instructions

2.1.1 General Safety

Safety regulations require that during a repair:

• Connect the unit to the mains via an isolation transformer.

• Replace safety components, indicated by the symbol ,

only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.

Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points:

• Route the wires/cables correctly, and fix them with the mounted cable clamps.

• Check the insulation of the mains lead for external damage.

• Check the electrical DC resistance between the mains plug and the secondary side:

1. Unplug the mains cord, and connect a wire between

the two pins of the mains plug.

2. Set the mains switch to the 'on' position (keep the

mains cord unplugged!).

3. Measure the resistance value between the mains plug

and the front panel, controls, and chassis bottom.

4. Repair or correct unit when the resistance

measurement is less than 1 MΩ.

5. Verify this, before you return the unit to the customer/

user (ref. UL-standard no. 1492).

6. Switch the unit ‘off’, and remove the wire between the

two pins of the mains plug.

2.1.2 Laser Safety

This unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury).

2.2 Warnings

2.2.1 General

• All ICs and many other semiconductors are susceptible to

electrostatic discharges (ESD, "). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same potential. Available ESD protection equipment: – Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable) 4822 310 10671.

– Wristband tester 4822 344 13999.

• Be careful during measurements in the live voltage section. The primary side of the power supply (pos. 1005), including the heatsink, carries live mains voltage when you connect the player to the mains (even when the player is 'off'!). It is possible to touch copper tracks and/or components in this unshielded primary area, when you service the player. Service personnel must take precautions to prevent touching this area or components in this area. A 'lightning stroke' and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply.

• Never replace modules, or components, while the unit is ‘on’.

2.2.2 Laser

• The use of optical instruments with this product, will increase eye hazard.

• Only qualified service personnel may remove the cover or attempt to service this device, due to possible eye injury.

• Repair handling should take place as much as possible with a disc loaded inside the player.

• Text below is placed inside the unit, on the laser cover shield:

Laser Device Unit

Type : Semiconductor laser

GaAlAs

Wavelength : 650 nm (DVD)

: 780 nm (VCD/CD)

Output Power : 20 mW (DVD+RW

writing)

: 0.8 mW (DVD

reading)

: 0.3 mW (VCD/CD

reading)

Beam divergence : 60 degree

Figure 2-1

Note: Use of controls or adjustments or performance of

procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam.

CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÅLING ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES UNNGÅ EKSPONERING FOR STRÅLEN VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN VARO! AVATT AESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU

Figure 2-2

2.2.3 Notes

Dolby

Manufactered under licence from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. ©1992-1997 Dolby Laboratories, Inc. All rights reserved.

Figure 2-3

Trusurround

TRUSURROUND, SRS and symbol (fig 2-4) are trademarks of SRS Labs, Inc. TRUSURROUND technology is manufactured under licence frm SRS labs, Inc.

Figure 2-4