HarmanKardon-DVD27-cd-sm维修电路原理图.pdf

harman kardon Model DVD 27DVD 27 DVD/CD/CD-R/CD-RW/VCD MP3 Player Service Manual - Contents - SERVICE PRECAUTIONS.2 BASIC SPECIFICATIONS.5 PACKAGE (120V).6 PACKAGE (230V).7 DETAILED SPECIFICATIONS.8 FRONT PANEL CONTROLS.11 INFORMATION DISPLAY.12 REMOTE CONTROL.13 REAR PANEL CONNECTIONS.16 CONNECTIONS/SETUP.17 TEST SCREEEN.19 PLAYBACK BASICS.20 BASIC TROUBLESHOOTING GUIDE.22 DISASSEMBLY PROCEDURE (120/230v).23 EXPLODED VIEW (120v).26 EXPLODED VIEW (230v).27 BLOCK DIAGRAM.28 ELECTRICAL PARTS LIST (120v) .29 SEMICONDUCTOR PINOUTS44 PCB DRAWINGS.96 SCHEMATICS.105 WIRING DIAGRAM.110 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 3/2006 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 impact.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 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!Absolutely 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). 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 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.MagnetHow to hold the pick-upConductive SheetCotton swabPressurePressureDrop impactDVD27 DVD27 harman/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-nents 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 taken, 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 instruments 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, the 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 from the pick-up should NEVER be directly facing the eyes or bare skin.Resistor(1 Mohm)ConductiveSheetResistor(1 Mohm)ArmbandDVD27 DVD27 harman/kardon 33ESD PRECAUTIONSElectrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. 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 damage 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 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. Use 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 generate 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 comparable 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, AND 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 ESD device).DVD27 DVD27 harman/kardon 4DVD 27 TECHNICAL SPECIFICATIONSApplicable Disc:Disc formats: 5-inch (12cm) or 3-inch (8cm) DVD-Video, 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-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Dual LayerAudio formats: Linear PCM, MPEG,Windows Media 8, Dolby Digital or DTS Audio DiscsStill image format: JPEGVideo Signal System:NTSCComposite 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 (1kHz, 0dB)Frequency Response:DVD (Linear PCM): 2Hz 22kHz +0/0.5dB (48kHz sampling)2Hz 44kHz +0/1.5dB (96kHz 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/CD: 0.0025%Wow & Flutter:Below Measurable LimitsAC Power:110240VAC/5060HzPower Consumption:1 Watt (On/Standby)/11 Watts (Max)Dimensions (H x W x D):17-3/10 x 1-15/16 x 12 (440mm x 49mm x 330mm) 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 lb (4kg)Depth measurement includes knobs and connectors.Height measurement includes feet and chassis.All specifications subject to change without notice.Harman Kardon, Harman International and Power for the Digital Revolution are registered trademarks of Harman International Industries, Incorporated.Manufactured under license from Dolby Laboratories. 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.DTS and DTS-ES are registered trademarks of DTS, Inc.Kodak and Photo CD are trademarks of Eastman Kodak Company.Microsoft and Windows Media are registered 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. 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 authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.SACD is a trademark of Sony.TECHNICAL SPECIFICATIONS 35DVD 27 (120V) OM 12/20/05 2:18 PM Page 35DVD27 DVD27 harman/kardon 5POLY BA GNODE S C R I PTI ONPA R TS NO.Q , t y123456711POLY BA G1. I n s t r u c t i o n ma n u a l a s s y - A c c e s s o r i e s2. Pa c k a g e Dr a wi n gC A BLE , S - V HS ( 1. 5M )S TA PLE108C J S 0I 006Z311C J S 4S 004ZHQ E 1A 273ZC OR D, PI N( 3P, W/ R / Y )HA R M A N I M A G E BR OC HU R E SBA TTE R Y112C A R D WA R R A NTYC Q E 1A 172X1DV D27I NS TR U C TI ON M A NU A LC Q X 1A 1048 Z1HA R M A N I M A G E BR OC HU R E SC A BLE , S - V HS ( 1. 5M )2BA TTE R Y A S S Y4R E M OC ONTR A NS M I TTE R A S S Y873M A NU A L I NS TR U C TI ON5C OR D PI N( 3P, W/ R / Y )6S TA PLE910M A NU A L A S S Y4512DE S C R I PTI ONNOC PS 1A 714C Q X DV D27C PG 1A 798 Z211Q , t yPA R TS NO.C PS 1A 715S NOW, PA D31S NOW, PA D167M A NU A L A S S Y1S NOW PA D 35S NOW PA D 3C OR D, J A C K ( M ONO) 1200M M9C J S 9D002Z1C OR F , J A C K ( M ONO) 1200M MC A R D WA R R A NTYC A R TDV D27R E M OC ON A S S Y12S NOW PA D 4DVD UNITDVD 27OUTER CARTONDVD 27 UNITOUTER CARTONDVD27 DVD27 harman/kardon 6POLY BA GNODE S C R I PTI ONPA R TS NO.Q , t y123456711POLY BA G1. I n s t r u c t i o n ma n u a l a s s y - A c c e s s o r i e s2. Pa c k a g e Dr a wi n gC A BLE , S - V HS ( 1. 5M )S TA PLE108C J S 0I 006Z311C J S 4S 004ZHQ E 1A 273ZC OR D, PI N( 3P, W/ R / Y )HA R M A N I M A G E BR OC HU R E SBA TTE R Y112DV D27/ 230I NS TR U C TI ON M A NU A LC Q X 1A 1051Z1HA R M A N I M A G E BR OC HU R E SC A BLE , S - V HS ( 1. 5M )BA TTE R Y A S S Y4873M A NU A L I NS TR U C TI ON5C OR D PI N( 3P, W/ R / Y )S TA PLE910M A NU A L A S S YBOX , OU T C A R TON4512DE S C R I PTI ONNOC PS 1A 714C Q X DV D27C PG 1A 798 W211Q , t yPA R TS NO.C PS 1A 715S NOW, PA D31S NOW, PA DS E TDV D27/ 230S E T167M A NU A L A S S Y1S NOW PA D 3BOX , OU T C A R TON5S NOW PA D 3C OR D, J A C K ( M ONO) 1200M M9C J S 9D002Z1C OR F , J A C K ( M ONO) 1200M MS E T2S NOW PA D 4R E M OC ON A S S Y6R E M OC ON A S S YC A R TDV D271DVD27 DVD27 harman/kardon 7MODEL NAME : DVD27 DVD27/230 MODEL NAME : DVD27 DVD27/230 MP ReleaseMP ReleaseDescription : Characteristics Specification of Analog Audio L / R (2CH.) Analog Audio L / R (2CH.)Test Disc : TDV-540A (ABEX) , YEDS7 (Sony) Test Conditions : 10k Load Terminated , Must to be connect AP GND with set chassis.AC Input : For USA (120V/60Hz) , For Europe (230V/50Hz)Test Measuerment : CASCADE SYS-2522 (A.P)CASCADE SYS-2522 (A.P)1.ANALOG AUDIO OUTPUT Serial No. : 1.ANALOG AUDIO OUTPUT Serial No. : Measurement ItemMeasurement ItemLimitLimitNorminalNorminalTEST DISCTEST DISCOutput Level VrmsL2.02YEDS7 (SONY)TRACK 11KHz 0dB PlaybackR2.02Level differenceVrms 0.20F/ response dBHzL 1.0-0.01YEDS7 (SONY)TRACK 2Reference 1KHz 0dBR-0.01100HzL 1.0-0.01YEDS7 (SONY)TRACK 4BW : 10Hz500KHzR-0.01Filter : None10KHzL 1.0-0.03YEDS7 (SONY)TRACK 10R-0.03KHzL 1.0-0.14YEDS7 (SONY)TRACK 13R-0.144KHzL 1.5-1.05TDV-540A (ABEX)R-1.05T4,C16 AU3Emphasis KHzL-4.531.0-4.55YEDS7 (SONY)TRACK 40CharacteristicdBR-4.55Ref.1kHz 0dBKHzL-9.04 1.0-9.03YEDS7 (SONY)TRACK 41BW : 22Hz22KHzR-9.03S/NdBL105-120.8YEDS7 (SONY)TRACK 232222KHz AweightedR-120.8Channel SeBparationd 95-120.5YEDS7 (SONY)TRACK 30 , 341KHz 0dB Playback 1KHz Bandpass-120.5LinearitydBL-89.53-89.5YEDS7 (SONY)TRACK 22-90dB playback BW : 22Hz22KHzR-89.5T.H.D%L 0.0050.0015YEDS7 (SONY)TRACK 11KHz 0dB Playback BW : 22Hz22KHzR0.0015Dynamic RangedBL 9097.7YEDS7 (SONY)TRACK 20CD-DA 1KHz -60dB 20KHz AES1720KHz AES17R97.7T.H.D%L 0.0050.001TDV-540A (ABEX)T3, C1 BW : 22Hzz22KHR0.001Dynamic RangedBL 90104.3TDV-540A (ABEX)T3, C2 BW : 20KHzS AE 17R104.3T.H.D%L 0.0050.001TDV-540A (ABEX)T2, C1 , AU248 BW : 22Hzz22KHR0.001Dynamic RangedBL 90105.3TDV-540A (ABEX)T2, C2 , AU248 20KHz AES1720KHz AES17R105.32. DIGITAL OUT2. DIGITAL OUT 1) OPTICAL OUT (BW : 50Hz100KHz) Peak to PeakJITTER44.1KHz 50mUI7.2Normal 44.1KHz (mUI)CD PlaybackJITTER96KHz 50mUI13.6Normal 96KHz(mUI)DVD Playback 2) COAXIAL OUTOutput Level mV 500+50 (mV)525Normal CD or DVDPeak to Peak Level at 75ohm load terminatedPlaybackHarman / KardonDVD27 DVD27 harman/kardon 8MODEL NAME : DVD27 DVD27/230 MODEL NAME : DVD27 DVD27/230 MP ReleaseMP ReleaseDescription : Characteristics Specification of Video VideoTest Disc : TDV-540A (ABEX) , MDVD-111 (TEAC) Serial NO.:Serial NO.:Test Conditions : 75 Load TerminatedAC Input : For USA (120V/60Hz) , For Europe (230V/50Hz)Test Measuerment : VM-700T1. Video Level Test (75 Terminated)1. Video Level Test (75 Terminated)Measurement ItemMeasurement ItemLimitLimitNorminalNorminalTest DiscTest DiscVideo output VComposite1.0V 0.1V1.02MDVD-111TITLE2,CHAPTER1100% Color BARS-Video Y1.0V 0.1V1.02S-Video C286mV 30mV290Component Y1.0V 0.1V1.03Component Pb700mV 70mV680Component Pr700mV 70mV680Scart CVBS1.0V 0.1V1.02Scart Red700mV 70mV720Scart Green700mV 70mV720Scart Blue700mV 70mV720* Pb/Pr & RGB Video Level check before please setting the Black Level off in the setup menu * Pb/Pr & RGB Video Level check before please setting the Black Level off in the setup menu *2. Video S/N Raito Test (75 Terminated)2. Video S/N Raito Test (75 Terminated)Measurement ItemMeasurement ItemLimitLimitNorminalNorminalTest DiscTest DiscVideo SNR dB100KHz4.2MHzUse SC TrapComposite 65.0 dB-73.5TDV-540ATITLE2,CHAPTER450% White ColorS-Video Y 65.0 dB-73.9Component Y 65.0 dB-73.1Component Pb 65.0 dB-73.7Component Pr 65.0 dB-73.73. Chroma Signal AM.PM Test (75 Terminated)3. Chroma Signal AM.PM Test (75 Terminated)Measurement ItemMeasurement ItemLimitLimitNorminalNorminalTest DiscTest DiscChroma AM dB10KHz500KHzComposite Chroma 65.0 dB-74.1TDV-540ATITLE2,CHAPTER17100% Magenta ColorS-Video Chroma 65.0 dB-74.1Chroma PM dB10KHz500KHzComposite Chroma 60.0 dB-65.3S-Video Chroma 60.0 dB-65.3Harman / KardonDVD27 DVD27 harman/kardon 94. Video Frequency Respoens (75 Terminated)4. Video Frequency Respoens (75 Terminated)Measurement ItemMeasurement ItemLimitLimitNorminalNorminalTest DiscTest DiscComposite dB0.5MHz 0dB Ref.0MDVD-111TITLE2,CHAPTER8100% Multi Brust1MHz 0dB 2dB0.112MHz0dB 2dB0.113MHz0dB 2dB0.374MH