HarmanKardon-DVD22B-cd-sm维修电路原理图.pdf

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1、DVD 22 - DVD22B Digital Versatile Disc PlayerSERVICE MANUALPower for the Digital RevolutionRadioFans.CN 收音机爱 好者资料库INTRODUCTION IntroductionKardon DVD.The DVD is a multipurpose DVDplayer, capable of playing both DVD-Video discsand conventional CD audio discs with the highestfidelity and access to fut

2、ure software upgradesvia the Internet.Along with conventional DVD-Video and CD audio discs, the DVD is also com-patible with MP3,WMA, JPEG and most record-able CD and DVD formats as well as VCD discs.To enable you to get the maximum quality fromDVDs, the DVD is equipped with the latest indesign tech

3、niques, including advanced 10-bitvideo digital-to-analog converters (DAC) andVideo (composite), S-Video and RGB video (RGBvia SCART) outputs, to ensure that you get all thequality inherent in todays DVD medium. For opti-mum playback of NTSC and PAL DVD with com-patible high-definition display device

4、s, DVD isequipped with progressive component video out-puts.In addition, Harman Kardons audio heritagecontinues into the digital video era with audio-phile-grade Wolfson DACs to ensure that theaudio quality matches the superb video. Ofcourse, both coaxial and optical digital audiooutputs are availab

5、le for direct connection to A/Vreceivers or processors so that you may takeadvantage of Dolby Digital* and DTSsound-tracks.When playing audio CDs, the playbackquality is state-of-the-art, matching that of thefinest players available.A wide range of programming features makes iteasy to program an eve

6、nings worth of entertain-ment.When playing DVDs, easy-to-understandon-screen menus and icons make it simple tochange languages, soundtracks, subtitles oraspect ratio, while a parental-lock functionenables you to control which discs may beviewed by younger members of the household.DVD players are amo

7、ng the fastest growing con-sumer electronics products ever brought to mar-ket, but this may, nevertheless, be the first DVDplayer youve owned.Although many of the fea-tures of the DVD resemble those of standard CDplayers, there are a number of functions that youmay be unfamiliar with.To ensure that

8、you areable to take advantage of all the power and flex-ibility the DVD has to offer, we encourage you toreview this quick setup manual.That smallinvestment of your time will pay major dividendsin the enjoyment you will get from proper use ofthe DVD.I Plays a Wide Range of Video and AudioFormats, In

9、cluding DVD-Video Discs,VCD, Standard CD Audio Discs, CD-R/RW,DVD-R/RW, DVD-+R/RW,Audio Discs andMP3 DiscsI High-Quality Video Playback 10-BitDACs, Progressive Scan and ComponentVideo OutputsI Dolby Digital and DTS Data SignalOutput Through Both Optical andCoaxial Digital Audio ConnectionsI Audiophi

10、le-Grade Wolfson Output DACsfor the Finest Audio reproductionI Easy-to-Use On-Screen NavigationSystem I Playback of MP3 and WindowsWMAAudio Discs and JPEG image filesI Simultaneous Playback of MP3 and JPEGfilesI Extensive Programming Capability forAudio and Video DiscsI Parental Lock Controls Preven

11、tUnauthorized Viewing of RestrictedMoviesI Multiple Options for Language,Soundtrack and Subtitle SelectionI Multiple-Angle Capabilities WithSpecially Encoded DVD DiscsI Backlit, Ergonomically Designed RemoteControlRadioFans.CN 收音机爱 好者资料库 TERMINOLOGYTerminologySince they share some of the characteris

12、tics andtechnology of CD players, many of the terms andoperational concepts used in a DVD player aresimilar to what you may be familiar with from CDplayers and changers, or older video disc formatssuch as Laser Disc. However, if this is your firstDVD product, some of the terms used to describethe fe

13、atures of a DVD player may be unfamiliar.The following explanations should solve some ofthe mysteries of DVD, and help you to enjoy allthe power and flexibility of the DVD format andthe DVD.With the arrival of DVD, disc data capacity hasincreased dramatically. On a DVD Video disc mostof this capacit

14、y is taken up by MPEG 2 video andthe multichannel movie soundtrack in DolbyDigital and/or DTS.This information is compressed.Aspect Ratio: This is a description of the widthof a video image in relation to its height.A con-ventional video screen is four units wide for everythree units of height, that

15、s why the ratio is called”4:3”. Newer wide aspect ratio video displaysare 16 units wide for every nine units of height,making them more like the screen in a movie the-ater.The program material on a DVD may berecorded in either format and, in addition, youmay configure the DVD to play back in either

16、for-mat, depending on the features recorded on adisc.Title: For a DVD,a title is defined as an entiremovie or program.There can be as many chapterswithin a title as the producers decide to include.Most discs include only one title,but some mayhave more than one,to give you a “DoubleFeature”presentat

17、ion.Chapter: DVD programs are divided into chap-ters and titles. Chapters are the sub-sections pro-grammed into a single title on a disc. Chaptersmay be compared to the individual tracks on anaudio CD.RGB Video:This is a new form of video signalthat eliminates many of the artifacts of traditionalcom

18、posite video signals by splitting the signalinto the three fundamental colors Red, Green andBlue (RGB).With an RGB connection (via SCART),you will see greater picture resolution and elimi-nate many picture imperfections such as themoir patterns often seen on checkered pat-terned cloths. However, in

19、order to benefit fromRGB video, you must have a video display with anRGB compatible SCART input.Progressive scan: DVD offers progressive scanvideo outputs for use with compatible high-reso-lution televisions and projectors.Before DVD,noconsumer medium could store,transmit or displayvideo with full r

20、esolution.To conserve bandwidth,analog compression (interlacing) is employed:firstthe odd-numbered lines of a frame are displayed,followed by the even-numbered lines.The result isthat only half of the video image is drawn at onetime;the viewers brain must reassemble the com-plete image.This is accep

21、table,if the monitor isnot too large and if there is not too much motionin the image.Large displays and fast-movingimages reveal the limitations of this system.Thanks to DVDs immense data capacity,imagesare now stored intact (progressively),so that allthe lines in each frame (odd and even) are shown

22、at the same time.But because most TVs cannothandle a progressive signal,all current DVD play-ers generate an interlaced output for compatibili-ty.Now,the Harman Kardon DVD is among theselect few DVD players with true progressive scanvideo output (NTSC and PAL) for use with com-patible TVs and CRT pr

23、ojectors and with all plas-ma,LCD and DLP display devices via the compo-nent video output.The result is 40% greater lightoutput than a conventional TV and a stunninglydetailed high definition image,along with analmost complete absence of visible scanlines andmotion artifacts.Of course,traditional Y/

24、Pr/Pbcomponent video,SCART,S-Video and compositevideo outputs are included for use with conven-tional televisions and projectors.Multiple Angle: DVDs have the capability toshow up to four different views of the samescene in a program.When a disc is encoded withmultiple-angle information, pressing th

25、e Anglebutton will enable you to switch between thesedifferent views. Note that at present, few discstake advantage of this capability and, when theydo, the multiple-angle technology may only bepresent for short periods of time within the disc.Producers will usually insert some sort of icon orgraphi

26、c in the picture to alert you to the availabil-ity of multiple viewing angles.Reading:This is a message that you will seeafter youve loaded the disc and the tray hasclosed. It refers to the fact that the player mustfirst examine the contents of the disc to see if it isa CD or DVD, and then extract t

27、he informationabout the type of material on the disc, such aslanguages, aspect ratios, subtitles, number oftitles and more.The slight delay while the con-tents of the disc are read is normal.Resume:The operation of the Stop Button onthe DVD works differently from what you areused to on CD players. O

28、n a traditional CD player,when you press the Stop button, the unit doesjust that: it stops playback. On a CD player, whenyou press the start button again, the disc startsfrom the beginning.With the DVD, however, youhave two options when playing DVD discs.Pressing Stop once will stop playback, but it

29、 actu-ally puts the unit in the Resume mode.Thismeans that you can turn the machine off and,when you press play the next time, the disc willresume or continue from the point on the discwhere the Stop button was pressed.This is help-ful if you are watching a movie and must inter-rupt your viewing ses

30、sion but wish to pick upwhere you left off. Pressing the Stop button twicewill stop the machine in a traditional mannerand, when the disc is played again, it will startfrom the beginning.In resume mode, the cover of the DVD will be displayed, if available. Otherwise, the Harman Kardon screen will ap

31、pear.TerminologyFEATURES FeaturesHigh quality video Advanced sophisticated 10-bit MPEG-2 videodecoding circuits. Direct RGB output via SCART (selectable) foroptimum video performance.SCART connectoralso configurable for Composite Video output. Pure PAL with NTSC disc due to trueNTSC/PAL conversion.

32、Dual-layer compatibility for extended playDVD. Progressive Scan component video ouputs(NTSC and PAL) Playback of JPEG image filesHigh 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 D

33、igital discs. With linear PCM audio at 16-24 bits and 44-96 kHz (also on digital output, see tablepage 15), 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

34、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 l

35、anguage andsoundtrack selection (limited to DVDs record-ed with multiple dialog languages or sound-tracks). Parental lock settings to prevent play of discsunsuitable for some audiences DVD only. Intuitive menu operating system. 4 step Zoom during play and pause. Backlit, ergonomically designed remot

36、econtrol. Future software upgrades accessible viaInternet. (See information below.)* The number of languages recorded dependson the software.Compatible with CD as well as DVD The DVD will play any conventional Audio CD orrecordable (CD-R) or erasable CD (CD-RW)bearing the logos shown here,MP3,WMA (v

37、8)or any VCD or DVD-Video with the region code0 or 2.Disc formats supported by this playerThe unit can play the following disc formats (8 cm and 12 cm size): DVD-Video DVD-R DVD-RW DVD+R DVD+RW CD CD-R CD-RW VCD S-VCDNOTE: Due to differences in the format of certain discs, it is possible that some d

38、iscs mayinclude a mix of features that are not compatiblewith the DVD. Similarly, although the DVD iscapable of a wide range of features, not all discsinclude every capability of the DVD system. Forexample, although the DVD is compatible withmulti-angle discs, that feature is only possiblewhen the d

39、isc is specially encoded for multiple-angle play. In addition, the DVD is capable ofplaying back both Dolby Digital and DTS sound-tracks, but the number and types of tracks avail-able will vary from disc to disc.To make certainthat a specific feature or soundtrack option isavailable, please check th

40、e options noted on thedisc jacket.I Playback capability for CD-R, CD-RW,WMA,JPEG, MP3,VCD/SVCD, DVD-R, DVD+R, DVD-RW and DVD+RW discs may vary due to vari-ations in the quality of the disc and therecorder used to create the disc.Upgradeability via InternetThe ”firmware” controlling the functionality

41、 ofthe Harman Kardon DVD is fully upgradeable. Inthe event of future improvements to itsoperations and features, it will be possible todownload firmware upgrades from All you have to do is create a CD-R with thedata and insert it in the DVD for an automaticupgrade.Packing List1 Harman Kardon DVD Pla

42、yer1 Remote control2 AA batteries1 A/V cable for stereo analog audio andcomposite video1 S-Video cable1 remote extension cable1 owners manualTECHNICAL SPECIFICATIONS Technical SpecificationsApplicable Disc:Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD Video, Standard conforming DVD+RW, DVD+R, DV

43、D-R and DVD-RW,VCD, CD, CD-R, MP3,WMA, JPEG or CD-RW discs,Regio code: DVD Video disc with Code 2 or 0 only.DVD-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Single Layer, Dual Side/Dual LayerAudio formats: Linear PCM, MPEG, MLP/CPPM, Dolby Digital or DTSVideo Signal System:PAL

44、/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-pComponent Video Output:Y: 1Vp-p/75 Ohms, sync negative polarityCr: 0.7Vp-p/75 OhmsCb: 0.7Vp-p/75 OhmsAnalog Audio Output:2 Vrms maxFrequency

45、 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):105 dB (A-weighted)Dynamic Range:DVD: 100 dB (18 Bit) / 105 dB (20 Bit)CD/DVD: 96 dB (16 Bit)THD/1kHz:DVD/CD: 0.003 %Wow & Flutter:Below

46、Measurable LimitsAC Power:110 - 240 V/ 50 - 60 HzPower Consumption:2 Watts (On)/20 Watts (Max)Dimensions (WxHxD):440 x 49 x 330 mmWeight:3.3 KgDepth measurement includes knobs and connectors.Height measurement includes feet and chassis.All specifications subject to change without notice.Harman Kardo

47、n 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

48、is a trade mark of Digital Theater Systems, Inc.Microsoft,Windows and WMA are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.This product incorporates copyright protection technology that is protected by method claims of certain U.S. p

49、atents 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 Corp

50、oration. Reverse engineering or diassembly is prohibited.Right hand man tipsDVD 22SymptomLocationActionIssuePlace1 On and Off problems. When power key is pressed, the unit turn On momentarily and immediately back to Stand-By.POWER SUPPLY boardDefective Q1 leaky (2N5551) and zener diode ZD1 open (16