Philips DVD-634 Service manual

DVD-Video Player DVD634

DVD634 /001 /021 /051

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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 ESS4428 23

Block Diagram ES6018 24

Wiring Diagram 25

Testpoint Overview Display Board 26

Testpoint Overview MPEG Boards 27 7 Electrical Diagrams and Print-Layouts Diagram PWB

Power Supply Unit 29 NA

Display Board - Bare Board 30602 30 31

Display Board - Bare Board 30603 32 33

MPEG Board 4428: MPEG Processor 34 37

MPEG Board 4428: Audio Power 35 37

MPEG Board 4428: Video & SCART 36 37

MPEG Board 6018: MPEG Processor 38 41-45

MPEG Board 6018: Audio Power 39 41-45

MPEG Board 6018: Video & SCART 40 41-45

Power On/Off Panel 46 46 8 AlignmentsNot Applicable) 47 9 Circuit Descriptions IC Data 47 10 Spare Parts List 50 11 Errata 54

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 0271 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12251

EN 2 DVD634 /0X11.

Technical Specifications

1. Technical Specifications

PLAYBACK SYSTEM DVD 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 FORMAT 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 (yellow) 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 Weight Appro ximately 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! 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 RAYONNEMENT 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 DVD634 /0X13.

3. Directions for Use

Directions for Use

EN 5DVD634 /0X1 3.

EN 6 DVD634 /0X13.

Directions for Use

EN 7DVD634 /0X1 3.

EN 8 DVD634 /0X13.

Directions for Use

EN 9DVD634 /0X1 3.

EN 10 DVD634 /0X13.

Directions for Use

EN 11DVD634 /0X1 3.

EN 12 DVD634 /0X13.

Directions for Use

EN 13DVD634 /0X1 3.

Personal Notes:

EN 14 DVD634 /0X14.

Mechanical- and Dismantling Instructions

4. Mechanical- and Dismantling Instructions

Power supply unit 1005

⇒ Remove cable connections

⇒ Remove 2 screws 190

(board to bottom frame)

⇒ Release 2 spacer locking

( board to bottom frame)

⇒ Dismount board

Mounting

Dismounting

Remove 4 screws to remove loader.

TopCover 300

⇒ Remove 4 screws 310 and

3 screws 305

⇒ Lift cover from rearside to

remove

Mpeg board 1002

⇒ Remove cable connections

⇒ Remove 3 screws 255

(skt cinch and scart to back-

plate) and 2 screws 290

(Mpeg board to bottom frame)

⇒ Dismount board

DVD Engine 145

⇒ Removes cable connections.

⇒ Open tray (see instruction below)

⇒ Unlock Tray cover 055

⇒ Remove 4 screws 185

(Engine to bottom frame)

⇒ Close tray

⇒ Lift module up slightly and move

it backward to remove.

When a disc is loaded, unlock the tray by pushing the slide inwards with

Power ON/OFF board 1001

⇒ Remove cable connection

⇒ Remove 2 screws 100

( board to Front cabinet )

⇒ Dismount board

a screwdriver and pull tray outwards.

Front cabinet 001

⇒ Remove cable connections

⇒ Open Tray (see instruction below)

⇒ Unlock Tray cover 055 and

close tray

⇒ Unlock Front panel from frame by

releasing successively 4 snaps

(2 on the side and 2 on the bottom )

DISMANTLING INSTRUCTIONS

See exploded view of DVD634 for item numbers

⇒ Place Front panel in front of

the set ( service position )

Front control board 1001

⇒ Remove cable connections.

⇒ Remove 5 screws 110

Figure 4-1 Dismantling Instructions

(board to Front cabinet )

⇒ Dismount board

When it is not possible to open the tray with the EJECT button,

the tray can manually be opened.

When no disc is loaded, unlock the tray by moving the slide from left

Manually opening of tray

to right and pull tray outwards.

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Mechanical- and Dismantling Instructions

EN 15DVD634 /0X1 4.

Figure 4-2 Exploded View

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EN 16 DVD634 /0X15.

Diagnostic Software, Trouble Shooting and Test Instructions

5. Diagnostic Software, Trouble Shooting and Test Instructions

5.1 Service Hints

5.1.1 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.

M3.2 Atapi Engine

The M3.2 Atapi Engine is an integrated unit of VAL6013/03 loader and servo board purchase from POS. According to POS service policy, the loader and servo board are non-repairable unit and in case of failure, it has to be replaced with a complete DVD Atapi Engine.

Mpeg board and Front Display

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

5.1.2 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 or (1) on the remote control to open the disc tray.

2. Enter the 4-digit code (0) (0) (0) (0) 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) Set to Picture CD Off (Off = DVD634) – (ANGLE) Set to Picture CD On

(On = DVD640 / 733) – (ZOOM) Set to 3 front key matrix (for DVD640) – (AUDIO) Set to 6 front key matrix (for DVD634)

– (REPEAT A-B)Set to 4 front key matrix (for DVD733)

4. The change should effect immediately with information indicated on TV screen.

5.1.3 Software upgrade via Download disc

Both the application and servo software can be flashed into the DVD player by means of a CD-ROM disc. The CD-ROM disc has to be made with a CD writer SW.

Application software

1. Open disc tray on the player.

2. Insert the DOWNLOAD DISC into the player and close disc tray.

3. The upgrading operation will start automatically.

4. Once the DOWNLOAD DISC is recognized, the player will automatically eject the disc tray.

5. Remove the DOWNLOAD DISC.

6. Upgrading of the software will continue with the status being shown on the FTD.

7. Once when the software is upgraded, the disc tray will automatically close.

8. The player will be restarted automatically and display on FTD will show (NO DISC)

2. Insert the DOWNLOAD DISC into the player and close disc tray. The player should identify this file as MP3 format.

3. Press (MENU), followed by (SUBTITLE)(AUDIO)(ANGLE) to enter Update Menu for the loader.

4. From the menu, use arrow keys to move down and select UPGRADE menu item.

5. Press right arrow button and then 'OK' to start upgrading.

6. A flashing digit in the bottom line indicates the progress. It will start from 1 and upgrading will be completed when it reaches 30.

7. The player will restart and upgrading is completed.

5.1.4 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.

DVD640/634_V319_0522 RG 2 LD 0836 F6 Jpeg-0 3000

In text, the following numbers refer to:

• V319_0522 ==> refer to Application software version

• RG 2 ==> refer to region code

• LD 0836 ==> refer to servo software version

• F6 ==> refer to DVD634/640 front key matrix

• Jpeg-0 ==> refer to Picture CD On/Off

5.1.5 ComPair

There is no ComPair available for DVD634

5.2 Trouble Shooting

In this paragraph some troubleshooting tips are given to diagnos the DVD634 player. For detailed diagnostics, check the faulting tree since no built-in diagnostic software is available in the player.

5.2.1 M3.2 Atapi Engine

The M3.2 Atapi engine is a non-repairable component. Hence, it is necessary to determine if any fault condition of the player are caused by the DVD engine before replacing it. The engine is a stand-alone system, an integrated unit of VAL6013/03 loader and servo board, which does not need to be connected to the Mpeg board to perform it basic operation. Once a stable voltage is supplied to the engine,some mechanical movement will be observed. Hence, to determine whether the engine is faulty, remove the 40 pins flex cable and observe the mechanical movement. If no mechanical movement is observed, the engine should be faulty and it should be reconfirm with a working engine. The Mercury 3 Loader has an optical unit consisting of two lasers, one for CD with a wavelength of 780 nm, and one for, DVD with a wavelength of 650 nm. If any one type of disc (DVD or VCD / CD) cannot be identified by the player, it can be sure that the fault is due to the engine.

Servo software

1. Open disc tray on the player

Diagnostic Software, Trouble Shooting and Test Instructions

5.3 Fault Finding Trees

5.3.1 No Operation

The player does not operate

No OSD and FTD display

No pix and sound

Put the Mains switch to ON

Check Power

supply +5V and

+/-12V to the

Mpeg board

YES

• Check supply voltages at connector 1202 Pin 1&3 è +5V

O

Pin 5 è +12V Pin 7 è -12V

• Check / Replace cable connection to con 1202

• Check / Replace Power Supply Unit

EN 17DVD634 /0X1 5.

Check Power supply +3V3 and +2V5 to IC 7101

board

YES

Check RESET

signal at pin 24 /

7101 and pin 12

7100

YES

Check 27MHz clk

input at

pin 105 /116 /117

of IC 7101

YES

Check SDRAM

CLK 108MHz at

pin 38 / 7102

YES

Measure waveform at pin 16 of Flash IC 7100 at Power-on and the waveform should look like in Fig A:

• During initialization –waveform appear for 1 sec and go low for next 1 sec.

• After start-u

-continuous waveform.

Is the waveform

present ?

NO

• Check / Replace safety resistor 3200

• Check / Replace 3V3 regulator 7206

and transistor 7220

• Check +5V supply to IC 7230

• Check / Replace RESET IC 7230

O

• Check +5V supply voltage to IC 7104

• Check / Replace IC 7104

O

• Check / Replace crystal 1153

• Check / Replace C2140 and C2141

• Check / Replace resistor

3145,3146,3147 3148 and 3150

• Check +3V3 supply voltage to IC

O

7102

• Check / Replace resistors 3171

• Check / Replace processor IC 7101

Note: There should be mechanical

Fig A

PM3380B

ch1

1.00V / DC 200ms / div

• Check +3V3 supply voltage to IC 7100

• Check / Replace jumper 4109

• Check / Replace Flash IC 7100

• Check HSYNC at pin 10 / 7301

•

Check +5VAV supply to IC 7301

•

Check / Replace Video DAC IC 7301

ch1

ch2

ch1

RESET

T

2V / div DC

20ms / div

27MHz CLK

1V / div DC

50ns / div

SDRAM CLK

ch1:freq=108MHz

1V / div DC

10ns / div

YES

• Check / Replace processor IC 7101

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Figure 5-1 No operation

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