Philips-DVD-640-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by MW 0269 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12070 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 PlayerDVD640 DVD640 /001 /021 /051 ContentsPage 1Technical Specs and Connection Facilities2 2Safety Instructions, Warnings, Notes4 3Directions for Use5 4Mechanical-, Dismantling I

3、nstructions, and Service Hints14 5Diagnostic Software, Trouble Shooting and Test Instructions16 6Block-, Wiring Diagram and Testpoint Overview Block Diagram23 Wiring Diagram24 7Electrical Diagrams and Print-LayoutsDiagram PWB Power Supply Unit2526 MPEG Board: Processor(Diagram M1) 2730-31 MPEG Board

4、: Audio/Power(Diagram M2) 2830-31 MPEG Board: Video & SCART(Diagram M3) 2930-31 Front Board(Diagram D)3233 8Alignments(Not Applicable)35 9Circuit Descriptions(Not Applicable)35 List of Abbreviations(Not Applicable)35 IC Data35 10 Spare Parts List38 RadioFans.CN 收音机爱 好者资料库 Technical Specifications an

5、d PWB Location DrawingEN 2DVD640 /xx11. 1.Technical Specifications and PWB Location Drawing 1.1Technical Specifications PLAYBACK SYSTEM DVD Video Video CD & SVCD CD (CD- Recordable and CD- Rewritable) MP3 CD VIDEO PERFORMANCE CVBS1 Vpp into 75 ohm RGB (SCART)0.7 Vpp into 75 ohm Black Level ShiftOn/O

6、ff AUDIO FORMAT DigitalMPEG/AC- 3/DTSCompressed Digital PCM16, 20, 24 bits fs, 44.1, 48, 96 kHz MPEG MP3MPEG Audio L3 Analogue Stereo Sound Full decoding of Dolby Digital multi- channel surround sound AUDIO PERFORMANCE DA Converter24 bits Signal- Noise (1kHz)90 dB Dynamic Range (1kHz)80 dB DVDfs 96

7、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 STANDARD (PAL/50Hz) (NTSC/60Hz) Number of lines625525 PlaybackMultistandard(PAL/NTSC) CONNECTIONS SCARTEuroconnector Video OutputCinch (yellow) Audio L+R outputCinch (white/red) Digital Outpu

8、t1 coaxial IEC958 for CDDA / LPCM/ MPEG1 IEC1937 for MPEG2, Dolby Digital and DTS CABINET Dimensions (w x h x d)435 x 235 x 71 mm WeightApproximately 2.7 Kg Specifications subject to change without prior notice Technical Specifications RadioFans.CN 收音机爱 好者资料库 Technical Specifications and PWB Locatio

9、n DrawingEN 3DVD640 /xx11. 1.2PWB Location Drawing Figure 1-1 PWB Location Drawing PCB LOCATION DVD640/001/021/051 1001 Power board 1002 MPEG board Remote Control 1004 Front board 1003 Loader module PARTS 12NC LIST DVD615/001/021/051 1001 PSU board 3141 018 02930 1002 MPEG board 3141 018 02760 1003

10、Loader module3141 018 02660 1004 Front board Remote control3141 017 90201 3141 018 02750 RadioFans.CN 收音机爱 好者资料库 Safety Instructions, Warnings and NotesEN 4DVD640 /xx12. 2.Safety Instructions, Warnings and Notes 2.1Safety Instructions 2.1.1General Safety Safety regulations require that during a repa

11、ir: 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 regulation

12、s 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

13、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, control

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

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

16、 (VCD/CD reading) Beam divergence: 60 degree Figure 2-1 Class 1 Laser Product 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. 2.2Warnings 2.2.1General All ICs and many other

17、 semiconductors are susceptible to electrostatic discharges (ESD, symbol ?). 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 potenti

18、al. 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), includ

19、ing 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

20、 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. 2.2.2Laser The use of optical instruments with this product, will increase eye haz

21、ard. 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: Figure 2-2 Warning te

22、xt 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. 1992-1997 Dolby Laboratories, Inc. All rights reserved. Figure 2-3 Trusurround TRUSURROUND, SRS and symbol (fig 2

23、-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 TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSEL SYNLIG OG USYNL

24、IG 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 NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET

25、 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 DANGEREUSE AU FAISCEAU ! Directions for UseEN 5DVD640 /xx13. 3.Directions for Use Directions for UseEN 6DVD64

26、0 /xx13. Directions for UseEN 7DVD640 /xx13. Directions for UseEN 8DVD640 /xx13. Directions for UseEN 9DVD640 /xx13. Directions for UseEN 10DVD640 /xx13. Directions for UseEN 11DVD640 /xx13. Directions for UseEN 12DVD640 /xx13. Directions for UseEN 13DVD640 /xx13. Mechanical- and Dismantling Instruc

27、tionsEN 14DVD640 /xx14. 4.Mechanical- and Dismantling Instructions Dismantling Instructions DISMANTLING INSTRUCTIONS DVD640/001/021/051 See exploded view for item numbers Cover 232 Remove screws Lift cover at rearside to remove Front assy 200 Unlock front from frame by releasing successively snaps P

28、lace front assy in front of the set (service position) Display board 1004 Remove screws (board to front) Demount board Remove volume knob by pulling it forward Switch assy Remove screws Demount switch assy Loader module 1003 Remove screws (loader to bracket) Demount loader module Remove connections

29、to MPEG and PSU board Remove screws (MPEG board to frame) Remove screws (MPEG board to back plate) Demount board Remove flex connections to MPEG board Remove screws (PSU board to frame) Release snap of 1 spacer locking (board to frame) Demount board Remove flex connections to PSU board MPEG board 10

30、02PSU board 1001 Mounting Demounting Mechanical- and Dismantling InstructionsEN 15DVD640 /xx14. Figure 4-1 Exploded view ITEM 12NC DESCRIPTION 0200 3141 017 76381 CAB FRONT ASSY DVD640/001 0201 3141 014 24720 BRACKET 0205 3141 017 75590 BUTTON POWER DVD616K PNT PRT 0213 3141 017 76391 FRAME ASSY DVD

31、640/051 0219 3141 017 75600 DOOR DVD616K PRT 0224 3141 017 76161 BACK PLATE DVD640/001 PNT PRT 0232 3141 017 75610 COVER TOP DVD616K PNT 0260 3140 113 21880 MAINS CORD RELIEF 0384 3141 017 90220 REMOTE CONTROL DVD-Q30/751 1001 3141 018 03220 PBAS PSU 90PS132 WR BILLION EH 1002 3139 247 10721 PCBA MP

32、EG DVD634 PK 1003 3141 018 03140 DVD LOADER MODULE A96H 1004 3141 019 21570 PBAS FRONT DVD640/001 ASSY 5001 3141 018 71300 MAIN CORD M7.92VH 1.60M 8004 3141 011 60630 EMC SPRING II DVD640/001/021/051 EXPLODED VIEW 384 219200 205 1004 1004 1001 1003 1002 224 213 232 5001 260 201 8004 Diagnostic Softw

33、are, Trouble Shooting and Test InstructionsEN 16DVD640 /xx15. 5.Diagnostic Software, Trouble 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 i

34、s only for information and no service parts will be available. Atapi Engine The Atapi Engine is an integrated unit of loader and servo board. 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 Displa

35、y The Mpeg board and 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

36、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) (ZOOM)Set to 3 front key ma

37、trix (for DVD640) (AUDIO)Set to 6 front key matrix (for DVD634) 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 means of a CD-ROM disc. The CD-ROM dis

38、c 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.

39、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) Servo software 1.Open disc tra

40、y 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 down and select UPGRADE menu item. 5.P

41、ress 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 setting To check that the setting has chang

42、e 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 versio

43、n 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 DVD640 5.2Trouble Shooting In this paragraph some troubleshooting tips are given to diagnos the DVD640 play

44、er. 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 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

45、replacing it. The engine is a stand-alone system, an integrated unit of the 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 whet

46、her 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 loader has an optical unit consisting of two lasers, one for CD with a wavelength of 7

47、80 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 InstructionsEN 17DVD640 /xx15. 5.3Fault Finding Trees 5.3.1No Operatio

48、n 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 7 -12V Check / Replace cable connection to con 1202 Check /

49、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 IC 7104 Check / Replace crystal 1153 Check / Replace C2140 and C2141 Check / Replace