HarmanKardon-DVD37-cd-sm2维修电路原理图.pdf

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1、 harman kardon Model DVD 37DVD 37 DVD/CD/CD-R/CD-RW/VCD MP3 Player Service Manual - Contents - SERVICE PRECAUTIONS.2 BASIC SPECIFICATIONS.5 DETAILED SPECIFICATIONS.6 PACKAGING.10 FRONT PANEL CONTROLS.11 INFORMATION DISPLAY.12 REMOTE CONTROL.13 REAR PANEL CONNECTIONS.16 CONNECTIONS/SETUP.17 TEST SCRE

2、EEN.25 BASIC TROUBLESHOOTING GUIDE26 DISASSEMBLY PROCEDURE.27 EXPLODED VIEW (120v).28 BLOCK DIAGRAM.29 ELECTRICAL PARTS LIST (120v) .30 PCB DRAWINGS.44 SEMICONDUCTOR PINOUTS50 SCHEMATICS.126 WIRING DIAGRAM.130 harman/kardon, Inc. 250 Crossways Park Dr. Released 2006 Woodbury, New York 11797 Rev0 7/2

3、007 Discontinued XXXX RadioFans.CN 收音机爱 好者资料库 1SERVICING PRECAUTIONSNOTES REGARDING HANDLING OF THE PICK-UP1. Notes for transport and storage1) The pick-up should always be left in its conductive bag until immediately prior to use.2) The pick-up should never be subjected to external pressure or impa

4、ct.2. Repair notes1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure andimpact. If it is subjected to strong pressure or impact, the result may

5、 be an operational malfunctionand/or damage to the printed-circuit board.3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reasonthe adjustment point and installation screws should absolutely never be touched.4) Laser beams may damage the eyes!Abs

6、olutely never permit laser beams to enter the eyes!Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.5) Cleaning the lens surfaceIf there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as usedfor camera lens)

7、. The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot-ton swab should be used, taking care not to distort this.6) Never attempt to disassemble the pick-up.Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Donot

8、 use any other liquid cleaners, because they will damage the lens.) Take care not to use too much ofthis alcohol on the swab, and do not allow the alcohol to get inside the pick-up.Storage in conductive bagNEVER look directly at the laser beam, and dont let contactfingers or other exposed skin.Magne

9、tHow to hold the pick-upConductive SheetCotton swabPressurePressureDrop impactDVD37 harman/kardonharman/kardon 2RadioFans.CN 收音机爱 好者资料库2NOTES REGARDING COMPACT DISC PLAYER REPAIRS1. Preparations1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These compo-nen

10、ts are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage,components can be damaged, and for that reason components should be handled with care.2) The pick-up is composed of many optical components and other high-precision components. Care mustbe tak

11、en, therefore, to avoid repair or storage where the temperature of humidity is high, where strongmagnetism is present, or where there is excessive dust.2. Notes for repair1) Before replacing a component part, first disconnect the power supply lead wire from the unit2) All equipment, measuring instru

12、ments and tools must be grounded.3) The workbench should be covered with a conductive sheet and grounded.When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This isbecause there is the possibility of damage by static electricity.)4) To prevent AC leakage, t

13、he metal part of the soldering iron should be grounded.5) Workers should be grounded by an armband (1M)6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to preventstatic electricity changes in the clothing to escape from the armband.7) The laser beam

14、from the pick-up should NEVER be directly facing the eyes or bare skin.Resistor(1 Mohm)ConductiveSheetResistor(1 Mohm)Armband3DVD37 h ha ar rmmanan/k/karard do on n 3ESD PRECAUTIONSElectrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static elect

15、ricity. Such components com-monly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated cir-cuits and some field-effect transistors and semiconductor chip components. The following techniques shouldbe used to help reduce the incidence of component damag

16、e caused by static electricity.1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain offany electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear acommercially available discharging wrist strap device, which

17、should be removed for potential shock reasonsprior to applying power to the unit under test.2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive sur-face such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.3. Us

18、e only a grounded-tip soldering iron to solder or unsolder ESD devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-staticcan generate electrical charges sufficient to damage ESD devices.5. Do not use freon-propelled chemicals. These can genera

19、te electrical charges sufficient to damage ESDdevices.6. Do not remove a replacement ESD device from its protective package until immediately before you areready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together byconductive foam, aluminum foil or com

20、parable conductive materials).7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective material to the chassis or circuit assembly into which the device will by installed.CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AN

21、D OBSERVE ALLOTHER SAFETY PRECAUTIONS.8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motionsuch as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gen-erate static electricity sufficient to damage an

22、ESD device).4DVD37 h ha ar rmmanan/k/karard do on n DVD 37 TECHNICAL SPECIFICATIONSApplicable Disc:Disc formats: 5-inch (12cm) or 3-inch (8cm) DVD-Video, DVD-Audio, standard-conforming DVD-R, DVD+R, DVD-RW, DVD+RW,VCD, CD, CD-R, CD-RW or MP3 discsRegion code: DVD video disc with Code 1 or 0 onlyDVD

23、layers: Single side/single layer, single side/dual layer, dual side/dual layerAudio formats: DVD Audio MLP lossless, linear PCM, MPEG,Windows Media9, DolbyDigital or DTSaudio discsStill-image format: JPEGVideo Signal System:NTSCHDMIOutput:Video: 480p, 720p, 1080iHDMI Version 1.0-compliantHDCP Versio

24、n 1.1-compliantComposite Video Output:1V p-p/75 ohms, sync negative polarityS-Video Output:Y/luminance: 1V p-p/75 ohms, sync negative polarityC/chrominance: 0.286V p-pComponent Video Output:Y: 1V p-p/75 ohms, sync negative polarityPr: 0.7V p-p/75 ohmsPb: 0.7V p-p/75 ohmsAnalog Audio Output:2V RMS (1

25、kHz, 0dB)Frequency Response:DVD (linear PCM): 2Hz 22kHz +0/0.5dB (48kHz sampling)2Hz 44kHz +0/1.5dB (96kHz sampling)2Hz 88kHz +0/0.5dB (192kHz sampling)CD: 2Hz 20kHz +0/0.5dBSignal/Noise Ratio (SNR):105dB (A-weighted)Dynamic Range:DVD: 100dB (18-bit)/105dB (20-bit)CD/DVD: 96dB (16-bit)THD/1kHz:DVD/C

26、D: 0.0025%Wow & Flutter:Below measurable limitsAC Power:110240V AC/5060HzPower Consumption:1 Watt (on/standby)/13 watts (max)Dimensions (H x W x D):2 x 17-3/10 x 11-1/4 (50mm x 440mm x 285mm)Weight:6 lb (2.7kg)Shipping Dimensions (H x W x D):5 x 14-3/8 x 20 (127mm x 365mmx 508mm)Shipping Weight:8.8

27、lb (4kg)Depth measurement includes knobs and connectors.Height measurement includes feet and chassis.All specifications subject to change without notice.Harman Kardon and Harman International are trademarks of Harman International Industries, Incorporated, registered in the United States and/or othe

28、r countries.Dolby, Pro Logic and the double-D symbol are registered trademarks of Dolby Laboratories. Confidential Unpublished Works.1992-1997 Dolby Laboratories, Inc.All rights reserved. Manufactured under license from Dolby Laboratories.DTS and DTS-ES are registered trademarks of DTS, Inc.Kodak an

29、d Photo CD are trademarks of Eastman Kodak Company.Microsoft,Windows Media, HDCD and High Definition Compatible Digital are registered trademarks of Microsoft Corporation in the United States and/or other countries.Blu-ray Disc is a trademark of the Blu-ray Disc Association.HDMI, the HDMI logo and H

30、igh-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).SACD is a trademark of Sony Corporation.This product incorporates copyright protection technology that is protected by metho

31、d claims of certain U.S. patents and other intellectual property rights owned byMacrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation and is intended for home and other limited viewing uses only unless otherwise aut

32、horized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.38TECHNICAL SPECIFICATIONS DVD 37 (120V) OM 8/7/06 4:10 PM Page 385DVD37 harman/kardonharman/kardon MODEL NAME : DVD 37 & DVD 37/230MODEL NAME : DVD 37 & DVD 37/230MP用MP用Description : Characteristics Specification o

33、fA Au udidio oTest Disc : YEDS7 (SONY), TDV-540A (ABEX)Test Conditions : 10k Load Terminated, AC100V 50/60HzTest Measuerment : VP-7722A (Audio Analyzer) ,CASCADE SYS-2522(AP)1.ANALOG AUDIO OUTPUTLimitResult1.ANALOG AUDIO OUTPUTLimitResultTEST DISCTEST DISCOutput LevelVrmsLRLevel differenceVrms 0.2F/

34、 response dBLRRef.1kHz 0dBLRLRLRLREmphasis LCharacteristicdBRRef.1kHz 0dBLRS/NdBLRChannel SeparationdBLinearitydBL-90dB playbackRT.H.D%LRDynamic RangedBL-60dB playbackR全高調波歪率%LRDynamic RangedBLR全高調波歪率%L48RDynamic RangedBL48R2. DIGITAL OUTPUT2. DIGITAL OUTPUT 1) OPTICAL OUT JITTER 44.1kHzNormal 44.1k

35、Hz(mUI)CD Playback JITTER 96kHzNormal 96kHz(mUI)DVD Playback 2) COAXIAL OUT OUTPUT Level mVNormal CD or DVD Peak to Peak Level at 75ohm LoPlaybackMeasurement ItemMeasurement Item5-9.04 1.04KHzKHzKHz2 0 Hz100Hz10KHzKHz 0.015 0.013 0.0189.532.0 0.2 1.0 1.0105 95 1.0 1.5 1.5-4.531.0YEDS7 (SONY)TRACK 1Y

36、EDS7 (SONY)TRACK 2YEDS7 (SONY)TRACK 4TDV-540A (ABEX)TITLE 2, CHAPTER 1AUDIO STREAM 2YEDS7 (SONY)TRACK 10YEDS7 (SONY)TRACK 13TDV-540A (ABEX)TITLE 4,CHAPTER16AUDIO STREAM 3YEDS7 (SONY)TRACK 40YEDS7 (SONY)TRACK 41YEDS7 (SONY)TRACK 23YEDS7 (SONY)TRACK 30,34YEDS7 (SONY)TRACK 22TDV-540A (ABEX)TITLE 2, CHA

37、PTER 2AUDIO STREAM 2YEDS7 (SONY)TRACK 1YEDS7 (SONY)TRACK 20TDV-540A (ABEX)TITLE 3, CHAPTER 1TDV-540A (ABEX)TITLE 3, CHAPTER 250050 (mV) 50mUI Track 38 (30Hz) Play. SW Frequency Respones - Track 55(31Hz , 0dB) Reference Track 54 (61Hz) , Track 53 (81Hz) , Track 51(127Hz) PlaySW 192 / 24Output Level (

38、V)T.H.D (%) 20KHz LPFFrequencyRespones (dB)Ref. : Tr. 38Downmix 2CHMuiti 5 CH48 / 2496 / 20Dynamic Range (dB)20KHz LPFLimitTrack Inform.S/N (dB) A Filter9DVD37 harman/kardonharman/kardon DVD 37DVD 37OUTER CARTONDVD3710DVD37 harman/kardonharman/kardon FRONT-PANEL CONTROLS1 Power Indicator: This indic

39、ator lights amber whenthe unit is connected to an AC power source, but is notturned on.When the unit is on, the indicator lights blue.1Power On/Off (Standby): Press the button onceto turn the DVD 37 on. Press it again to put the unit in the Standby mode.2Play: Press to initiate playback or to resume

40、 playback after the Pause Button3Lhas beenpressed.3Pause: Press this button to momentarily pauseplayback.To resume playback, press the button again.If a DVD is playing, action will freeze and a still picturewill be displayed when the button is pressed.4Stop: Press this button once to place the disc

41、inthe Resume mode, which means that playback willstop, but as long as the tray is not opened or the discchanged, playback will continue from the same pointon the disc when the Play Button2Nis pressedagain. Resume will also work if the unit was turned off.Resume will not operate for WMA files or VCDs

42、 that donot have playback control.To stop a disc and haveplay start from the beginning, press the button twice.6 Skip/Search Reverse: Press this button once toreturn to the start of the current chapter for a DVD ortrack for a CD. Subsequent individual presses will skipbackwards through the available

43、 chapters or tracks.Press and hold the button to play the disc in the fastreverse mode at the speed indicated in the on-screendisplay and by the Playback Mode Indicators O.7 Skip/Search Forward: Press this button once to move to the start of the next chapter for a DVD ortrack for a CD. Subsequent pr

44、esses will skip forwardthrough the available chapters or tracks. Press andhold the button to play the disc in the Fast Play modeat the speed indicated in the on-screen display and bythe Playback Mode Indicators O.8 Remote Sensor: The sensor that receives com-mands from the remote control is behind t

45、he frontpanel in this area.To ensure proper operation of theplayer with the remote, it is important that this area notbe covered. In the event that the player is enclosed ina cabinet or if the remote sensor is covered, you mayextend the remote sensor by connecting an optional,external remote sensor

46、to the Remote Control Input on the rear panel (see page 14).When optional,external IR “blasters” are used for system control, theyshould be positioned so that they point at this area.8Display Dimmer: Press this button to reduce thebrightness of the Information Display by 50% orto turn the display of

47、f completely in the following order:FULL BRIGHTNESS HALF BRIGHTNESS OFF FULL BRIGHTNESS.) Disc Drawer: This drawer is used to hold thediscs played in the unit. Be certain to seat all discscarefully within the recess in the drawer. Do not pressdown on the drawer when it is open, to avoid damageto the

48、 player.When the drawer is left open with noactivity for 5 minutes, it will automatically close to pre-vent dust or dirt from entering the component, and toprevent accidental damage. If a disc is present, theDVD 37 will immediately begin playback.!Open/Close: Press this button to open or closethe di

49、sc tray. Information Display: The Information Displayprovides status information on the player and the discbeing played through a series of specific indicators and messages that appear in the display. See page 10for more information on the display.?Power Indicator 1Power On/Off (Standby)2Play3Pause4

50、Stop5Skip/Search Reverse 6Skip/Search Forward7Remote Sensor8Display Dimmer9Disc Drawer!Open/Close Information DisplayOpen/CloseDVD 371 23 4 5 6 7 89)!JPEGVCDDVDWMAREPEAT1 ALLA BV. OFFP . SCANTESTMP3PROGRANDOMTITLETRACKCHAP PBCHOURMINSECOpen/CloseDVD 47AUDIO/VIDEOAUDIO/VIDEONOTE: To make it easier to