Philips-DVD-634-Service-Manual电路原理图.pdf

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1、Published by MW 0271 Service PaCECopyright 2002 Philips Consumer ElecAll rights reserved. No part of this publretrieval system or transmitted, in anymechanical, photocopying, or otherwise wiDVD-Video Player DVD634DVD634 /001 /021 /051Testpoint Overview MPEG Boards 277 Electrical Diagrams and Print-L

2、ayouts Diagram PWBPower Supply Unit 29 NADisplay Board - Bare Board 30602 30 31Display Board - Bare Board 30603 32 33MPEG Board 4428: MPEG Processor 34 37MPEG Board 4428: Audio Power 35 37Printed in the Netherlands Subject to modification EN 3122 785 12251tronics B.V. Eindhoven, The Netherlands. ica

3、tion may be reproduced, stored in a form or by any means, electronic, thout the prior permission of Philips.MPEG Board 4428: Video & SCART 36 37MPEG Board 6018: MPEG Processor 38 41-45MPEG Board 6018: Audio Power 39 41-45MPEG Board 6018: Video & SCART 40 41-45Power On/Off Panel 46 468 AlignmentsNot

4、Applicable) 479 Circuit Descriptions IC Data 4710 Spare Parts List 5011 Errata 54Hints 33 Directions for Use 44 Mechanical- and Dismantling Instructions 145 Diagnostic Software, Trouble Shooting and Test Instructions(Not Applicable) 166 Wiring-, Block DiagramsBlock Diagram ESS4428 23Block Diagram ES

5、6018 24Wiring Diagram 25Testpoint Overview Display Board 26CL 26532068_000.eps300502Contents Page1 Technical Specs and Connection Facilities 22 Safety Instructions, Warnings, Notes, and Service Technical SpecificationsEN 2 DVD634 /0X11.1. Technical SpecificationsPLAYBACK SYSTEMDVD VideoVideo CD & SV

6、CDCD (CD-Recordable and CD-Rewritable)MP3 CDDVD-R & D VD+RWVIDEO PERFORMANCECVBS 1 Vpp into 75 ohmRGB (SCART) 0.7 Vpp into 75 ohmBlack Level Shift On/OffVideo Shift Left/RightAUDIO FORMATDigital MPEG/AC-3/DTS CompressedDigitalPCM 16, 20, 24 bitsfs, 44.1, 48, 96 kHzMPEG MP3 MPEG Audio L3Analogue Ster

7、eo SoundFull decoding of Dolby Digital multi-channel surround soundA UDIO PERFORMANCEDA Converter 24 bitsSignal-Noise (1kHz) 90 dBDynamic Range (1kHz) 80 dBDVD fs 96 kHz 4 Hz - 44 kHzDVD/SVCD fs 48 kHz 4 Hz - 22 kHzSVCD/VCD/CD fs 44.1 kHz 4 Hz - 20 kHzMPEG MP3 MPEG Audio L3TV STANDARD (P AL/50Hz) (N

8、TSC/60Hz)Number of lines 625 525Playback Multistandard (PAL/NTSC)CONNECTIONSSCART EuroconnectorVideo Output Cinch (y ellow)Audio L+R output Cinch (white/red)Digital Output 1 coaxialIEC958 for CDD A / LPCM/MPEG1IEC1937 for MPEG2, Dolb yDigital and DTSCABINETDimensions (w x h x d) 435 x 293 x 75 mmW e

9、ight Appro ximately 2.7 Kg* typical playing time for movie with 2 spoken languages and3 subtitle languagesSpecifications subject to change without prior noticeCL 26532068_017.eps110702Safety Instructions, Warnings, Notes, and Service Hints EN 3DVD634 /0X1 2.2. Safety Instructions, Warnings, Notes, a

10、nd Service Hints2.1 Safety Instructions2.1.1 General SafetySafety 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 substitut

11、ion (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 mounte

12、d 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 co

13、rd 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 customer/user (ref. UL-standard no. 1492).6. Switch t

14、he unit off, and remove the wire between the two pins of the mains plug.2.1.2 Laser SafetyThis unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury).Laser Device UnitType : Semiconductor laser GaAlAsWavelength : 65

15、0 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 degreeFigure 2-1 Note: Use of controls or adjustments or performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid d

16、irect exposure to beam.2.2 Warnings2.2.1 GeneralAll 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 w

17、ith 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 sect

18、ion. 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. Ser

19、vice 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 LaserThe use of o

20、ptical 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 th

21、e unit, on the laser cover shield:Figure 2-2 2.2.3 NotesDolbyManufactered 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 Trusur

22、roundTRUSURROUND, 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 TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELS

23、E FOR STRLINGADVARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLENVARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE L

24、ASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSENDANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU!Directions for UseEN 4 DVD634 /0X13.3. Directions for UseDirections for Use EN 5DVD634 /0X1 3.Directions for UseEN 6 DVD634 /0X13.Directions for Use EN 7DVD634 /0X1 3.Directions for UseEN 8 DVD634 /0X13.Directions for Use EN 9DVD634 /0X1 3.Directions for UseEN 10 DVD634 /0X13.