HarmanKardon-DVD20-cd-sm维修电路原理图.pdf
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1、 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 SpecificationsApplicab
2、le 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 Oh
3、ms, 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 dBSign
4、al/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 spec
5、ifications 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Unpublished Work. 19
6、92-1997 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 othe
7、r 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 FEAT
8、URESFeaturesHigh 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 w
9、ith 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
10、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 inf
11、ormation 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 came
12、ra 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
13、 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 wi
14、th 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(
15、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 c
16、apable 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
17、 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
18、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 o
19、nwith 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 opera
20、te, 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
21、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 inte
22、nsitiy 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 thatpl
23、ayback 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.8Ski
24、p 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 in
25、di-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 agai
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