Philips DVD-625 Service manual

DVD-Video Player DVD625

DVD625 /001 /021 /051

Contents Page

1 Technical Specifications 2 2 Safety Instructions, Warnings, Notes, and Service

Hints 3 3 Directions for Use 5 4 Dismantling Instructions and Exploded View 17 5 Diagnostic Software, Trouble Shooting and Test

Instructions 19 6 Wiring-, Block Diagrams

Block Diagram 25

Wiring Diagram 26 7 Electrical Diagrams and Print-Layouts Diagram PWB

Power Supply Unit 27 28

Front Board 29 30

MPEG Board: Index (Diagram M1) 31 36-37

MPEG Board: RF Part (Diagram M2) 32 36-37

MPEG Board: Servo Part (Diagram M3 33 36-37

MPEG Board: Mem. & Audio (Diagram M4) 34 36-37

MPEG Board: Video Part (Diagram M5) 35 36-37 8 Alignments (Not Applicable) 39 9 Circuit Descriptions (Not Applicable) 39 10 Spare Parts List 40 10 Revision List 43

CL 36532022_000.eps

190303

Copyright 2003 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 0363 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 13390

EN 2 DVD625 /0x11.

Technical Specifications

1. Technical Specifications

Safety Instructions, Warnings, Notes, and Service Hints

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

EN 3DVD625 /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! AVATTAESSA 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 RAYONNE MENT 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

EN 4 DVD625 /0x12.

Safety Instructions, Warnings, Notes, and Service Hints

2.3 Service Hints

2.3.1 Repair tips

Switched mode power supply

The power supply unit has to be replaced in case of failure. The schematic diagram provided in the service manual is only for information and no service parts will be available.

DVD Loader

The DVD Loader is a non-repairable unit and in case of failure, it has to be replaced with a complete DVD Loader.

Mpeg board and Front Display

The Mpeg board and Front display has to be repaired down to component level.

2.3.2 Change of Software setting

The software setting can be change according to the following procedure:

1. Press “OPEN/CLOSE” button on the front of the player to open the disc tray.

2. Enter the 4-digit code <9> <9> <9> <9> on the remote control.

3. Enter one of the keys below to change the software setting.

REGION CODE

USA ==> 1 EUROPE ==> 2 AP ==> 3 LATAM ==> 4 INDIA / RUSSIA ==> 5 CHINA ==> 6 SUBTITLE 7:Set to setup configuration of DVD625 / 001 SUBTITLE 7:Set to setup configuration of DVD625 / 021 SUBTITLE 7:Set to setup configuration of DVD625 / 051

Important note:

Do not power off or interrupt the mains during the upgrading else the player's flash memory will be erased.

2.3.4 Verify setting

To check that the setting has change successfully.

1. Press “DISPLAY” button on the remote control while disc tray is open.

2. Two lines text will appear on the TV screen. That is how it looks like.

SD542PH-030219-728-001N SERVO:001FC72 REG:2

In text, the following numbers refer to:

SD542PH-030219 ==> refer to Application software version REG 2 ==>refer to region code SERVO:001FC72 ==> refer to servo software version 625-001N ==> refer to setup configuration of a type

number,eg. DVD625/001

2.3.5 ComPair

There is no ComPair available

2.4 Service Tools

• Test discs – Audio signals disc 4822 397 30184

• Torx screwdrivers – Set (straight, T2 to T20 4822 395 50145 – Set (square, T10, T15, T20to T20 4822 395 50132

2.5 Revision Information

Service Manual Version : 1.0

4. The change should effect immediately with information

indicated on TV screen. Note: When changing the setup configuration, the change will take immediate effect with the information indicated on the TV screen for a short period and the tray will close automatically and player will go to standby.

2.3.3 Software upgrade via Download disc

Both the application and servo software are delivered in one sw stack and it can be flashed into the DVD player by means of a CD-ROM disc. The CDROM disc has to be made with a CD writer SW.

Note:

1. The file name used for writing on the CD-R/RW MUST be in UPPER-CASE.eg: SD542PH.BIN

2. For better and fast reading, add one big garbage file of 50100MB.