Philips-DVD-781-Service-Manual-2电路原理图.pdf

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1、Published by MW 0162 Service PaCE Printed in the Netherlands Subject to modification c533122 785 11100Copyright 2001 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 f

2、orm or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.DVD-Video Player DVD703 /XX1DVD703 /031 /691 /751 /781CL 16532007_071.eps140201Contents Page1 Technical specifications and connection facilities 22 Warnings, laser safety instructions and

3、notes 33 Directions for use 64 Mechanical instructions and exploded views 155 Diagnostic software descriptions and troubleshooting 206 Block- and wiring diagramBlockdiagram 39Wiring diagram 407 Electrical diagrams and print-layouts Diagram PWBPower supply 41 42-43A/V Board Video control (Diagram A1)

4、 44 46-47A/V Board Audio (Diagram A2) 45 46-47Display panel (Diagram D) 48 49Bare board Standby 50 508 Electrical alignments 519 Circuit descriptions and 51List of abbreviations 5410 Spare part list 55Technical specificationsGB 2 DVD703 /XX11.1. Technical specifications19SpecificationsPLAYBACK SYSTE

5、MDVD-VideoVideo CD )pause playback temporarily /frame-by-frame playbackREPEATrepeat chapter, track,title, discREPEAT (A-B)repeat a specific segmentSHUFFLEplay tracks in random orderSCANplay of the first 10 seconds ofeach track/chapter within a discPOWER Bswitches DVD ON or to standby/on mode0-9 nume

6、rical key padto select numbered items in amenuDISPLAYdisplays bit rate indicator duringplaybackSYSTEM MENUaccess or removethe playersmenuT search forward* / go to the next chapter or trackSUBTITLE select a subtitle languageANGLE select a DVD camera angleZOOM enlarge video imageAUDIOselect an audio l

7、anguage* Press and hold key for about two secondsRemote Control5Functional OverviewFUNCTIONALOVERVIEWFront and Rear PanelsPLAYPREVSTOPNEXTSOUNDOPEN / CLOSEPAUSEPOWER ON/OFFDVD 703DVD/VIDEO CD/CD PLAYERbyPOWER ON/OFFswitches the player to ON or OFFDISPLAYshows the current status of the playerT NEXTgo

8、 to next chapter or trackB PLAYto start playbackSOUNDselects Stereo, Dolby Surround or3D Sound (TruSurround)/OPEN/CLOSEopens/closes the disc trayDisc Tray; PAUSEto interrupt playbackS PREVgo to previous chapter or track9 STOPto stop playbackCOAXIALDIGITAL AUDIO OUTPCM-MPEG2-Dolby Digital-DTSLR(CVBS)

9、VIDEO OUTAUDIO OUTS-VIDEOYPB/CBPR/CRMAINS (AC Power)connect to power sourceCOAXIAL (Digital audio out)connect to digital (coaxial) audio equipmentAUDIO OUT (Left/Right)connect to amplifier, receiver or stereosystemS-VIDEO (VIDEO OUT)connect to a TV with S-Video (Y/C) inputsPR/CRPB/CBY (VIDEO OUT)con

10、nect to a TV with PR/CRPB/CBY inputsCVBS(VIDEO OUT)connect to a TV with CVBS video inputsCaution:Do not touch the inner pins of the jacks on the rear panel.Electrostatic discharge may causepermanent damage to the unit.Directions for use GB 9DVD703 /XX1 3.8TVYXZCOAXIALDIGITAL AUDIO OUT PCM-MPEG2-Dolb

11、y Digital-DTSLR(CVBS)VIDEO OUTAUDIO OUTS-VIDEOYPB/CBPR/CRAMPLIFIERAFNote: If the audio format of the digital output does not match thecapabilities of your receiver, the receiver will produce a strong,distorted sound or no sound at all.Six Channel Digital Surround Sound via digital connectioncan only

12、 be obtained if your receiver has a Digital Multi-channel decoder.To see the selected audio format of the current DVD in theStatus Window, press SYSTEM MENU or Audio.NTSC/PAL SettingsYou can switch the NTSC/PAL setting of the DVD player tomatch the video signal of your TV. This setting only affectst

13、he televisions on-screen display that shows the stop andsetup modes.You may select either NTSC or PAL.Tochange the DVD player setting to PAL or NTSC, follow thesteps below.1Press the POWER ON/OFF button on the front panel ofthe DVD player to turn OFF the DVD player.2Press and hold 9and Ton the front

14、 of the DVD player.While holding 9and Tpress POWER ON/OFF.3After PAL or NTSC appears on the display panel of theDVD player, release 9and Tat the same time. The PALor NTSC indicator that appears on the display panelindicates the current setting.4Tochange the setting,press Twithin three seconds.Thenew

15、 setting (PAL or NTSC) will appear on the displaypanel.General explanation About this manualThis manual gives the basic instructions for operating theDVD player. Some DVDs require specific operation orallow only limited operation during playback.When thisoccurs,the symbol appears on the TV screen,in

16、dicatingthat the operation is not permitted bythe player or thedisc.Remote control operationUnless stated,all operations can be performed bytheremote control.Always point the remote control directly atthe player, making sure there are no obstructions betweenthe remote and the player.Corresponding ke

17、ys on the front panel of the player canalso be used. Menubar operationA number of operations can be done with the menubaron the screen.The menu bar can be accessed bypressingthe cursor keys on the remote control.Pressing SYSTEM MENU while the menu bar is displayedwill clear the menu bar from the scr

18、een.The selected item will be highlighted,and the appropriatecursor keys to operate it will be displayed below the icon.The symbols indicates that more items are availableat the left/right of the menu bar. Press 1or 2to selectthese items.PREPARATION7PreparationGeneral NotesDepending on your TV and o

19、ther equipment you wish toconnect,there are various ways you could connect theplayer. Use only one of the connections described below.Please refer to the manuals of your TV, VCR,Stereo Systemor other devices as necessary to make the bestconnections.For better sound reproduction,connect the players a

20、udioout jacks to the audio in jacks of your amplifier, receiver,stereo or audio/video equipment.See Connecting tooptional equipment.Caution: Makesure the DVD player is connected directlyto the TV.Set the TV to the correct video inputchannel. Do not connect the players audio out jack tothe phono in j

21、ack of your audio system. Do not connect your DVD player to the TV viayour VCR.The DVD image could be distorted bythe copy protection system.Connecting to a TVMake one of the following connections,depending on thecapabilities of your existing equipment.Component Video (PR/CRPB/CBY)connection1Connect

22、 the PR/CRPB/CBY video out jacks on the DVDplayer to the corresponding in jacks on the TV using anoptional PR/CRPB/CBY cable (Z).2Connect the Left and Right audio out jacks of the DVDplayer to the audio left/right in jacks on the TV (A).S-Video (Y/C) connection1Connect the S-Video video out jack on

23、the DVD player tothe S-Video in jack on the TV using an optional S-Videocable (Y).2Connect the Left and Right audio out jacks of the DVDplayer to the audio left/right in jacks on the TV (A).CVBS connection1Connect the CVBS video out jack on the DVD player tothe video in jack on the TV using the vide

24、o cable supplied(X).2Connect the Left and Right audio out jacks to the audio left/right in jacks on the TV (A).TVYXAZCOAXIALDIGITAL AUDIO OUTPCM-MPEG2-Dolby Digital-DTSLR(CVBS)VIDEO OUTAUDIO OUTS-VIDEOYPB/CBPR/CRConnecting to Optional Equipment Connecting to an amplifier equipped with two channel an

25、alog stereo or DolbySurround1Connect the Left and Right audio out jacks of the DVDplayer to the audio left and right in jacks on your amplifier,receiver or stereo system,using the supplied audio cable(A).Connecting to an amplifier equipped with two channel digital stereo (PCM) or to anAudio/Video re

26、ceiver equipped with amulti-channel decoder (Dolby Digital,MPEG 2 or DTS)1Connect the players coaxial digital audio out jack to thecorresponding coaxial digital audio in on your amplifier. Usean optional digital audio cable (F).2You will need to activate the players digital output (seePersonal Prefe

27、rences).Digital Multi-channel sound The digital multi-channel connection provides the bestsound quality. For this you need a multi-channel Audio/Video receiver that supports one or more of the audioformats supported byyour DVD player (MPEG 2,DolbyDigitalor DTS).Check the receiver manual and the logo

28、son the front of the receiver.PREPARATIONDirections for useGB 10 DVD703 /XX13.10Sound Digital outputFactory setting:ALL.This means coaxial output is on.If youare not connecting equipment with a digital input, change the setting to OFF.If your equipment doesnt include a digital multi-channeldecoder,

29、set the digital output to PCM only (Pulse CodeModulation). Analog outputSelect Stereo, Dolby Surround or 3D Sound (TruSurround)to match your systems playback capability.Night ModeOptimizes the dynamics of the sound for low volumeplayback.Karaoke vocalPut this setting to ON only when a multi-channel

30、karaokeDVD is being played.The karaoke channels on the disc willthen be mixed into a normal stereo sound.LanguageSelect the required Menu,Audio and Subtitle language.Audio language and Subtitle language can also be adapted using the Menu bar.FeaturesAccess ControlAccess Control contains the followin

31、g features:Child Lock - When Child Lock is set to ON,a 4-digit codemust be entered in order to play discs.Parental control - Allows the conditional viewing of DVDscontaining Parental Control information (see AccessControl).Status WindowDisplays the current status of the player and is displayedwith t

32、he menu bar. When disc playback is stopped,it isdisplayed with the Temporary Feedback Field in the defaultscreen.See On-Screen Display information.The factory setting is ON.Select OFF to suppress display ofthe Status Window.Bit Rate IndicatorWhen activated,the bit rate for video and audio as well as

33、the total bit rate is displayed.This is only applicable duringplayback of DVD and SVCD discs.Help textWhen set to ON,help text describes the icons selected.Select OFF if you no longer require the help text.PREPARATION9Menu Bar/Status WindowAs there are multiple menu bars,the items on the menubar are

34、 arranged according to usage and availability ofdirect access keys.Pressing the SYSTEM MENU keysrepeatedly will toggle through menu bar 1,menu bar 2,menubar 3 and OFF.Menu bar 1Personal PreferencesSubtitle Language Audio Language Color SoundMenu bar 2Step bystep playbackSlow motionFast motion Angle

35、ZoomMenu bar 3Title Chapter Time Search Favorite Track Selection (FTS)Temporary Feedback FieldIconsScan Repeat All Repeat Title Repeat TrackRepeat Chapter Shuffle Shuffle Repeat Repeat A to endRepeat A-B Angle Child Lock On Child SafeResume Action prohibitedPersonal PreferencesYou can set your own p

36、ersonal preferences on the player.General operation:Press SYSTEM MENU on the remote control.Select in the menubar.The Personal Preferences menuappears.Use the 1 2 3 4keys to toggle through the menus,submenus and submenu options.When a menu item is selected,the cursor keys (on theremote control) to o

37、perate the item are displayed next tothe item.Press OK to confirm and return to the main menu.The following items can be adapted:PictureTV ShapeIf you havea wide screen (16:9) TV, select 16:9.If you havea regular (4:3) TV, select 4:3.If you havea 4:3 TV, you can also select between:Letterbox for a w

38、ide-screen picture with black bars at thetop and bottom of the screen,or Pan Scan,for a full-heightpicture with the sides trimmed.If a disc supports theformat,the picture will be shown accordingly.Black level shift (NTSC users only)Select ON for adapting the color dynamics to obtain richercontrasts.Video shiftThe factory centers the video on your TV screen.Use thissetting to personalize the position of the picture on yourTV bymoving it to the left or right.PREPARATION