Philips-DVD-634-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by MW 0271 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12251 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 for

2、m or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. DVD-Video PlayerDVD634 DVD634 /001 /021 /051 CL 26532068_000.eps 300502 ContentsPage 1Technical Specs and Connection Facilities2 2Safety Instructions, Warnings, Notes, and Service Hints3 3D

3、irections for Use4 4Mechanical- and Dismantling Instructions14 5Diagnostic Software, Trouble Shooting and Test Instructions(Not Applicable)16 6Wiring-, Block Diagrams Block Diagram ESS442823 Block Diagram ES601824 Wiring Diagram25 Testpoint Overview Display Board26 Testpoint Overview MPEG Boards27 7

4、Electrical Diagrams and Print-LayoutsDiagram PWB Power Supply Unit29NA Display Board - Bare Board 306023031 Display Board - Bare Board 306033233 MPEG Board 4428: MPEG Processor3437 MPEG Board 4428: Audio Power3537 MPEG Board 4428: Video & SCART3637 MPEG Board 6018: MPEG Processor3841-45 MPEG Board 6

5、018: Audio Power3941-45 MPEG Board 6018: Video & SCART4041-45 Power On/Off Panel4646 8AlignmentsNot Applicable)47 9Circuit Descriptions IC Data47 10 Spare Parts List50 11 Errata54 RadioFans.CN 收音机爱 好者资料库 Technical SpecificationsEN 2DVD634 /0X11. 1.Technical Specifications PLAYBACK SYSTEM DVD Video V

6、ideo CD & SVCD CD (CD-Recordable and CD-Rewritable) MP3 CD DVD-R & D VD+RW VIDEO PERFORMANCE CVBS1 Vpp into 75 ohm RGB (SCART)0.7 Vpp into 75 ohm Black Level ShiftOn/Off Video ShiftLeft/Right AUDIO FORMAT DigitalMPEG/AC-3/DTSCompressed Digital PCM16, 20, 24 bits fs, 44.1, 48, 96 kHz MPEG MP3MPEG Aud

7、io L3 Analogue Stereo Sound Full decoding of Dolby Digital multi-channel surround sound A UDIO PERFORMANCE DA Converter24 bits Signal-Noise (1kHz)90 dB Dynamic Range (1kHz)80 dB DVDfs 96 kHz4 Hz - 44 kHz DVD/SVCDfs 48 kHz4 Hz - 22 kHz SVCD/VCD/CDfs 44.1 kHz4 Hz - 20 kHz MPEG MP3MPEG Audio L3 TV STAN

8、DARD(P AL/50Hz)(NTSC/60Hz) Number of lines625525 PlaybackMultistandard(PAL/NTSC) CONNECTIONS SCARTEuroconnector Video OutputCinch (yellow) Audio L+R outputCinch (white/red) Digital Output1 coaxial IEC958 for CDD A / LPCM/ MPEG1 IEC1937 for MPEG2, Dolb y Digital and DTS CABINET Dimensions (w x h x d)

9、435 x 293 x 75 mm WeightAppro ximately 2.7 Kg * typical playing time for movie with 2 spoken languages and 3 subtitle languages Specifications subject to change without prior notice CL 26532068_017.eps 110702 RadioFans.CN 收音机爱 好者资料库 Safety Instructions, Warnings, Notes, and Service HintsEN 3DVD634 /

10、0X12. 2.Safety Instructions, Warnings, Notes, and Service Hints 2.1Safety Instructions 2.1.1General 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

11、 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 w

12、ires/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 t

13、he 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 M. 5.Verify this, before you return the unit to the cu

14、stomer/ user (ref. UL-standard no. 1492). 6.Switch the unit off, and remove the wire between the two pins of the mains plug. 2.1.2Laser 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). Laser Devic

15、e 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 h

16、erein, may result in hazardous radiation exposure. Avoid direct exposure to beam. 2.2Warnings 2.2.1General 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

17、 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 13

18、999. 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 th

19、is 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

20、, or components, while the unit is on. 2.2.2Laser 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 wit

21、h a disc loaded inside the player. Text below is placed inside the unit, on the laser cover shield: Figure 2-2 2.2.3Notes Dolby Manufactered under licence from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. 1992-

22、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 CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE T

23、O BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLL

24、E LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET 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 DOUVERTURE EXPOSITION D

25、ANGEREUSE AU FAISCEAU ! RadioFans.CN 收音机爱 好者资料库 Directions for UseEN 4DVD634 /0X13. 3.Directions for Use Directions for UseEN 5DVD634 /0X13. Directions for UseEN 6DVD634 /0X13. Directions for UseEN 7DVD634 /0X13. Directions for UseEN 8DVD634 /0X13. Directions for UseEN 9DVD634 /0X13. Directions for

26、UseEN 10DVD634 /0X13. Directions for UseEN 11DVD634 /0X13. Directions for UseEN 12DVD634 /0X13. Directions for UseEN 13DVD634 /0X13. Personal Notes: Mechanical- and Dismantling InstructionsEN 14DVD634 /0X14. 4.Mechanical- and Dismantling Instructions Figure 4-1 Dismantling Instructions DISMANTLING I

27、NSTRUCTIONS See exploded view of DVD634 for item numbers Mounting Dismounting Power ON/OFF board 1001 Remove cable connection Remove 2 screws 100 ( board to Front cabinet ) Dismount board Front control board 1001 Remove cable connections. Remove 5 screws 110 (board to Front cabinet ) Dismount board

28、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 ) Place Front panel in front of the set ( service position ) TopCover 300 Remove 4 scre

29、ws 310 and 3 screws 305 Lift cover from rearside to remove 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. Power supply unit 1005 Remove c

30、able connections Remove 2 screws 190 (board to bottom frame) Release 2 spacer locking ( board to bottom frame) Dismount board 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 CL 26532068_003

31、.eps 010702 Manually opening of tray 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 to right and pull tray outwards. When a disc is loaded, unlock the tray by pushing the slide inw

32、ards with a screwdriver and pull tray outwards. Remove 4 screws to remove loader. Mechanical- and Dismantling InstructionsEN 15DVD634 /0X14. Figure 4-2 Exploded View CL 26532068_002.eps 300502 Diagnostic Software, Trouble Shooting and Test InstructionsEN 16DVD634 /0X15. 5.Diagnostic Software, Troubl

33、e Shooting and Test Instructions 5.1Service Hints 5.1.1Repair 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 A

34、tapi 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 an

35、d Front display has to be repaired down to component level. 5.1.2Change 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

36、) (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 DVD

37、640) (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. 5.1.3Software upgrade via Download disc Both the application and servo software can be flashed into the DVD player by

38、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

39、 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 (N

40、O DISC) Servo software 1.Open disc tray on the player 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

41、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. 5.1.4Verify setti

42、ng 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

43、= 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 5.1.5ComPair There is no ComPair available for DVD634 5.2Trouble Shooting In this paragraph some troubleshooting tip

44、s 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. 5.2.1M3.2 Atapi Engine The M3.2 Atapi engine is a non-repairable component. Hence, it is necessary to determine if any fault condition of the

45、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 m

46、ovement 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

47、 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. Diagnostic Software, Trouble Shooting and Test Instructio

48、nsEN 17DVD634 /0X15. 5.3Fault Finding Trees 5.3.1No Operation Figure 5-1 No operation The player does not operate No OSD and FTD display No pix and sound Check Power supply +5V and +/-12V to the Mpeg board Put the Mains switch to ON Check supply voltages at connector 1202 Pin 1&3 +5V Pin 5 +12V Pin

49、7 -12V Check / Replace cable connection to con 1202 Check / Replace Power Supply Unit NO Check Power supply +3V3 and +2V5 to IC 7101 board YES Check / Replace safety resistor 3200 Check / Replace 3V3 regulator 7206 and transistor 7220 NO Check RESET signal at pin 24 / 7101 and pin 12 / 7100 YES Check +5V supply to IC 7230 Check / Replace RESET IC 7230 NO Check 27MHz clk input at pin 105 /116 /117 of IC 7101 YES Check +5V supply voltage to IC 7104 Check / Replace