HarmanKardon-DVD20-cd-sm维修电路原理图.pdf

DVD20 Digital Versatile Disc Player Dolby Digital / DTS / PCM / MP3 decoding PRELIMINARY Service Technical Manual Harman International SNC - Harman Consumer International 2, route de Tours 72500 Chteau du Loir FRANCE RadioFans.CN 收音机爱 好者资料库TECHNICAL SPECIFICATIONS 35Technical SpecificationsApplicable Disc:5 inch (12 cm) or 3 inch (8 cm) DVD-Movie,VCD, CD-i, CD, CD-R or CD-RW discs,Region 2 DVD-Movie Discs,DVD: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Dual Layer,Linear PCM, MPEG, Dolby Digital or DTS Audio DiscsVideo Signal System:PAL/NTSCComposite Video Output:1 V p-p/75 Ohms, sync negative polarityS Video Output:Y/Luminance: 1 V p-p/75 Ohms, sync negative polarityC/Chrominance: 0.286 V p-pAnalog Audio Output:2 Vrms maxFrequency Response:DVD (Linear PCM):2 Hz - 22 kHz +0/-0.5 dB (48 kHz sampling)2 Hz - 44 kHz +0/-0.5 dB (96 kHz sampling)CD:2 Hz - 20 kHz +0/-0.5 dBSignal/Noise Ratio (SNR):110 dB (A-weighted)Dynamic Range:DVD: 100 dB (18 Bit) / 105 dB (20 Bit)CD/DVD: 96 dB (16 Bit)THD/1kHz:DVD/CD: 0.0025 %Wow & Flutter:Below Measurable LimitsAC Power:220-240 V/50 HzPower Consumption:12 Watts (On)/20 Watts (Max)Dimensions (WxHxD):440 x100 x330 mmWeight:7 KgAll specifications subject to change without notice.Harman Kardon and Power for the digital revolution are trademarks of Harman Kardon, Inc.Manufactured under license from Dolby Laboratories. Dolby,AC-3, ProLogic and the double-D symbol are trademarks of Dolby Laboratories. Confidential.Unpublished Work. 1992-1997 Dolby Laboratories, Inc.All rights reserved.DTS is a trade mark of Digital Theater Systems, Inc.This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rightsowned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation andis intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or diassembly is prohibited.RadioFans.CN 收音机爱 好者资料库4 FEATURESFeaturesHigh quality video Advanced sophisticated 10-bit MPEG-2 videodecoding circuits. Direct RGB output via SCART (selectable) foroptimum video performance. SCART connectoralso configurable for Video and S-Video out-put. Second SCART connector for throughput ofVCR or other video source to TV with only oneSCART input. Test screen videos available for testing videoperformance and setup. PAL 60 option for NTSC discs. Dual-layer compatibility for extended playDVD.High quality digital audio By connecting a DTS (Digital Theater Systems)or a Dolby Digital decoder, you can enjoy highquality 5.1 digital surround sound from DTS orDolby Digital discs. With linear PCM audio at 16-24 bits and 44-96 kHz (also on digital output, see table page14), audio quality exceeding that of CDbecomes possible. Optical and coaxial digital audio output.Many convenient features On-Screen Menu lcons for disc information orplayer information and access to many majorfunctions of this unit. Subtitles may be displayed in one of numerouslanguages*. The multi-angle function allows you to choosethe viewing angle of scenes which were shotfrom a number of different angles (Limited toDVDs recorded with multiple camera angles.) Multiple options for dialog language andsoundtrack selection (limited to DVDs record-ed with multiple dialog languages or sound-tracks). Programming of up to 9 scenes in memory(markers). Parental lock settings to prevent play of discsunsuitable for some audiences DVD only. Intuitive menu operating system. Separate Buttons for convenient FastForward/Fast Reverse Search and Track Skip. 2x/4x Zoom during play and pause, selectionmovable over screen in all directions. Backlit, ergonomically designed remote con-trol.* The number of languages recorded dependson the software.Compatible with CD as well asDVD The DVD20 will play any conventional AudioCD or recordable (CD-R) or erasable CD (CD-RW), bearing the logos shown here, as anyVCD or DVD with the region code 0 or 2.Disc formats supported by thisplayerThe unit can play discs bearing any of the fol-lowing logos:DVDCD3(8 cm) disc3(8 cm) disc5(12 cm) disc5(12 cm) discCD-RWCD-RVCD5(12cm) disc 3(8cm) disc5(12cm) disc5(12cm) disc 5(12cm) discNOTE: Due to differences in the format of certain discs, it is possible that some discs mayinclude a mix of features that are not compatiblewith the DVD 20. Similarly, although the DVD 20is capable of a wide range of features, not alldiscs include every capability of the DVD system.For example, although the DVD 20 is compatiblewith multi-angle discs, that feature is only possi-ble when the disc is specially encoded for multi-ple-angle play. In addition, the DVD 20 is capa-ble of playing back both Dolby Digital and DTSsoundtracks, but the number and types of tracksavailable will vary from disc to disc.To make cer-tain that a specific feature or soundtrack optionis available, please check the options noted onthe disc jacket.I Playback capability for CD-R and CD-RWdiscs may vary due to variations in the qualityof the disc and the recorder used to createthe disc.ReWritableFRONT PANEL CONTROLS 5Front Panel Controls?Main Power On/Off: Press this switch toapply power to the DVD 20.When the unit isfirst turned on, the Status IndicatorBwillturn orange. Once the unit has been turned onwith this switch, it may be operated from eitherthe front panel or remote control. Press theswitch again to turn the unit completely off.1Power On/Off (Standby): Press the buttononce to turn the DVD 20 on, press it again toput the unit in the Standby mode. Note that inorder for this switch to operate, the MainPower Switch?must be pressed in so that itis in the ON position.2Headphone Jack: Connect standard head-phones to this jack for private listening.3Headphone Level Control:Turn this control to adjust the volume level to the head-phones. Note that the use of this control will notchange the analog output levels at the rearpanel audio outputs.4Open/Close Button: Press this button toopen or close the Disc Tray.5TEST: Press this button to bring a test pic-ture to the screen, that enables you to optimallyadjust all important parameters of colour videoslike brightness, contrast, colour intensitiy andtint.6Dimmer: Press this button to reduce thebrightness of the Information Display by 50% orto turn the display off completely in the follow-ing order: FULL BRIGHTNESS HALF BRIGHT-NESS OFF FULL BRIGHTNESS.7Stop: Press this button once to place thedisc in the Resume mode, which means thatplayback will stop, but as long as the tray is notopened or the disc changed, DVD playback willcontinue from the same point on the disc whenthe Play Button is pressed again. Resume willalso work if the unit was turned off.To stop adisc and have play start from the beginning,press the button twice.8Skip Preview/Next: Press this button tomove forward or backward through the musictracks on a CD disc or the chapters on a DVDdisc.9Search Reverse/Forward: Press this but-ton to move forward or backward through a CDor DVD at one of four speeds. Each press andrelease will increase the search speed, as indi-cated in the on-screen display. Once you haveselected the desired speed, release the buttonand the disc will continue to search at fastspeed.To resume normal playback speed, pressthe play button.APlay/Pause: Press this button to momentar-ily pause playback.To resume playback, pressthe button again. If a DVD is playing, action willfreeze and a still picture will be displayed whenthe button is pressed.BStatus Indicator:When the DVD 20 is inthe On mode, this indicator will glow green.When the unit has been placed in the Standbymode by pressing the Power-Off button on theremote, the indicator will glow orange, indicat-ing that the unit is still connected to the ACmain supply and is ready to be turned on fromthe remote control.?Main Power On/Off1Power On/Off (Standby)2Phone Jack3Phone Level4Open/Close5TEST6Dimmer7Stop8Skip (Preview/Next)9Search (Reverse/Forward)APlay/PauseBStatus IndicatorDVD 2043587A 962?B 1STOPDIMMERTESTSKIPPLAY/PAUSESEARCH6 FRONT PANEL INFORMATION DISPLAY RESUMETITLERANDOMCHAPTERREPEATTRACKHOURA BMININTROPBCPROG.1 ALLSECDVDCDVCDABCDEMKJIHLGF 96kHz 24-BitNA Disc Type IndicatorsB Play/Search Speed IndicatorCTitle IndicatorsD Chapter/Track Number IndicatorsETime IndicatorsFVCD Playback Control IndicatorG Program IndicatorH Intro IndicatorsI Repeat IndicatorJ Random IndicatorK Resume IndicatorL Playback-Mode IndicatorsM Parental Lock IndicatorN 96kHz/24-Bit IndicatorA Disc Type Indicators: The DVD,VCD or CDindicator will illuminate to show the type of disccurrently being played.B This indicator illuminates and spins duringplayback, slow playback and search, varying thespin speed corresponding to the play/searchspeed.C Title Indicators: These two positions in thedisplay will show the current title number whena DVD disc is playing.D Chapter/Track Number Indicators:Whena DVD disc is playing, these two positions in thedisplay will show the current chapter.When aCD disc is playing they will show the currenttrack number.E Time Indicators:These positions in theindicator will show the running time of a DVD inplay.When a CD is playing, these indicators willshow the current track time, time remaining inthe current track, or the total remaining time onthe disc.NOTE: The Indicators CDE will also displaytext messages about the DVD 20s status,including Reading when a disc is loading,STAND-BYE when the unit is turned off,and Disc Error when a disc not com-patible with the DVD 20 is put into the playposition.F VCD Playback Control Indicator:Thisindicator lights when the playback control func-tion is turned on with VCDs.G Program Indicator:This indicator lightswhen the programming functions are in use.H Intro Indicator:This indicator lights whenthe Intro Scan function is active.I Repeat Indicators:These indicators lightwhen any of the Repeat functions are in use.J Random Indicator: This indicator lightswhen the unit is in the Random Play mode.K Resume Indicator:This indicator lightswhen the Stop button has been pressed once toput the unit in the Resume mode.L Playback-Mode Indicators:These indica-tors light to show the current playback mode: Lights when a disc is playing in the normalmodeHLights when the disc is in the Fast SearchForward mode. For DVDs, when both trianglesglow steadily, the disc plays at 2x normal speed.When the right triangle is flashing, the disc playsat 4x normal speed.When the left triangle isflashing, the disc plays at 8x normal speed.When both triangles are flashing, the disc playsat 16x normal speed. For CDs, only the first threeFast Search modes are available.N1Lights when the disc is paused.GLights when the disc is in the Fast SearchReverse mode. For DVDs, when both trianglesglow steadily, the disc plays at 2x normal speed.When the left triangle is flashing, the disc playsat 4x normal speed.When the right triangle isflashing, the disc plays at 8x normal speed.When both triangles are flashing, the disc playsat 16x normal speed. For CDs, only the first threeFast Search modes are available.M Parental Lock Indicator:This indicatorlights when the parental-lock system is engagedin order to prevent anyone from changing therating level without a code.N 96kHz/24-Bit Indicator: 96kHz/24-BitIndicator: The 96kHz Indicator will light when adisc recorded with 96kHz content is playing, the24-Bit Indicator will light when a disc recordedwith 24-bit content is playing. Note that for acorrect digital output the Linear PCM settingmust be made appropriately, see page 21 formore information.Front Panel Information DisplayREMOTE CONTROL FUNCTIONS 7Remote Control FunctionsONOFFSEARCHOPEN/CLOSESEARCHSTOPPAUSEPOWER RETURNTITLEMENUENTERSTATUSSUBTITLEON/OFF DVD 20 RCRANDOMZOOMSTEPPROG.CHECKCLEARLIGHTA - BREPEATPREV.SLOW07AH?AUDIO529CPLAYDFNEXTIKM127568904?QPONLJGEB86143SUBTITLEANGLE30123456789ABCDEFGHIJKLMNOPQ?POWER ONPOWER OFFAUDIOSUBTITLE ANGLESTATUS TITLE RETURN SUBTITLE ON/OFF ARROWS ENTERMENUPLAYSEARCH (REV)SEARCH (FWD) OPEN/CLOSEPAUSESTOPPREV./NEXTSLOW (REV/FWD)RANDOMSTEP (REV/FWD)NUMBERSPROGRAMCHECKCLEARLIGHTREPEATA-B-RepeatZOOM8 REMOTE CONTROL FUNCTIONSRemote Control Functions0 POWER ON:Turns on the player when it isin standby mode (Harman Kardon logo appearson screen).1 POWER OFF:Turns off the player tostandby mode.2 AUDIO: Press to access various audio lan-guages on a DVD (If the DVD contains multipleaudio streams).3 SUBTITLE:When a DVD is playing, pressto access subtitles menu (If the DVD containssubtitles).4 ANGLE: Press to access various cameraangles on a DVD (If the DVD contains multiplecamera angles).5 STATUS: Press while playing a disc to seeBanner Display on the screen.The BannerDisplay contains various playback features andinformation about the disc.6 TITLE:When a disc is playing, press to seethe discs Title. Select Menu (Main DVD menu)on the screen (if the disc was created withTitles).7 RETURN:When using the DVD Playersmenu system, press to escape from the menu.When playing any DVD menu, press to return topreceding menu screen (depends on DVD titleformat).8 SUBTITLE ON/OFF:Turns the subtitles onand off when playing a DVD (If the disc containssubtitles).9 ARROW buttons (LEFT/RIGHT/UP/DOWN): Use to select and execute items or set-tings.A ENTER: Press to select a highlighted menuitem.B MENU: Displays the actual DVD DiscMenu on the TV screen in play mode and theDVD players Setup Menu in stop mode.C PLAY: Begins to play disc (closes disc trayfirst, if it is open.)D SEARCH (REV):Allows you to search inreverse through a disc while it is in play mode.Each time you press this button, search speedchanges as below:DVD:R.SEARCH1 R.SEARCH2 R.SEARCH3 R.SEARCH4 R.SEARCH1 CD:R.SEARCH1 R.SEARCH2 R.SEARCH3 R.SEARCH1 E FWD (SEARCH):Allows you to search for-ward through a disc while it is in play mode.Each time you press this button, search speedchanges as below:DVD:F.SEARCH1 F.SEARCH2 F.SEARCH3 F.SEARCH4 F.SEARCH1 CD:F.SEARCH1 F.SEARCH2 F.SEARCH3 F.SEARCH1 F OPEN/CLOSE: Press to open or close thedisc tray.G PAUSE: Freezes a picture (with DVD/VCD)and pauses the playback signal (CD) when a discis playing. Press again for normal playback.H STOP: Stops playing a disc.When disc isplaying, if you press STOP and PLAY, the disc willresume play, i.e. it will start from the same pointon the disc where the unit was stopped. If youpress STOP twice and PLAY button, disc will startplay from the beginning.I PREV./NEXT:Allows you to move to theprevious chapter or track / the next chapter ortrack on a disc.J SLOW:Allows you to play movie in slowmode. Each time you press this button, slowspeed will be changed as below;F.SLOW 1/16 F.SLOW 1/8 F.SLOW 1/4 F.SLOW 1/2 F.SLOW 1/16R.SLOW 1/16 R.SLOW 1/8 R.SLOW 1/4 R.SLOW 1/2 R.SLOW 1/16K RANDOM: Press for RANDOM playback inrandom order.L STEP(REV/FWD): Freeze a picture when adisc is playing.Also the picture advances frameby frame e