HarmanKardon-DVD38-cd-sm维修电路原理图.pdf

《HarmanKardon-DVD38-cd-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《HarmanKardon-DVD38-cd-sm维修电路原理图.pdf（144页珍藏版）》请在收音机爱好者资料库上搜索。

1、 harman kardon Model DVD 38DVD 38 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.13 REAR PANEL CONNECTIONS.14 REMOTE CONTROL.16 CONNECTIONS/SETUP.19 OPERATION

2、.25 BASIC TROUBLESHOOTING GUIDE38 EXPLODED VIEW (120v).40 BLOCK DIAGRAM.41 ELECTRICAL PARTS LIST (120v) .42 PCB DRAWINGS.57 SEMICONDUCTOR PINOUTS64 SCHEMATICS.140 WIRING DIAGRAM.144 harman/kardon, Inc. 250 Crossways Park Dr. Released 2007 Woodbury, New York 11797 Rev0 8/2007 Discontinued XXXX RadioF

3、ans.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 pic

4、k-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 malfuncti

5、onand/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 b

6、eams 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 deli

7、cate 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 cleane

8、rs, 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-upCond

9、uctive SheetCotton swabPressurePressureDrop impactDVD38 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-nents are sensitive to, and eas

10、ily 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 repa

11、ir 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 grou

12、nded.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 solderi

13、ng 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 NEVE

14、R be directly facing the eyes or bare skin.Resistor(1 Mohm)ConductiveSheetResistor(1 Mohm)ArmbandDVD38 harman/kardonharman/kardon 33ESD PRECAUTIONSElectrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components com-monly

15、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.

16、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 sh

17、ock 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 ir

18、on 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 t

19、o 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. I

20、mmediately 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 PRECAUTI

21、ONS.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).DVD38 harman/kardonhar

22、man/kardon 447DVD 38 TECHNICAL SPECIFICATIONSPlease register your product on our Web site at . Note:Youll need your serial number.At the same time, you can choose to be notified about ournew products and/or special promotions.Applicable Disc:Disc formats:5-inch (12cm) or 3-inch (8cm) DVD-Video, DVD-

23、Audio, standard-conforming DVD-R, DVD+R, DVD-RW, DVD+RW,VCD,CD, CD-R, CD-RW or MP3 discs Region code:DVD video disc with Code 1 or 0 only DVD layers:Single side/single layer, single side/dual layer, dual side/dual layerAudio formats:DVD Audio MLP lossless, Linear PCM,MPEG,Windows Media9, DolbyDigita

24、l or DTSaudio discsStill-image format:JPEGVideo Signal System:NTSCHDMIOutput:Video: 480p, 720p, 1080iHDMI Version 1.0-compliantHDCP Version 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

25、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)The DVD 38 is Simplay HD-verified for compatibility via the HDMI connection with other Simplay HD-verified products.Frequency Response:DVD (linear PCM):2Hz

26、 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/CD: 0.0025%Wow & Flutter:Below measurable limitsAC Po

27、wer: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 lb (4kg)Depth measurement includes knobs, buttons a

28、nd terminal connections. Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon and Logic 7 are registered trademarks, and Designed to Entertain is a trademark, of Harman International Industries, Incorporated.Blu-ray Disc is a

29、 trademark of the Blu-ray Disc Association.CEA (Consumer Electronics Association) is a registered trademark of the Consumer Electronics Association.Dolby and Pro Logic are registered trademarks of Dolby Laboratories.DTS, DTS-ES, DTS Neo:6 and DTS 96/24 are registered trademarks of DTS, Inc.HD-DVD is

30、 a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).HDMI (High-Definition Multimedia Interface) is a trademark of HDMI Licensing LLC.Kodak is a registered trademark, and Photo CD is a trademark, of Eastman Kodak Company.SACD (Super Audio CD) is a trademark of Sony Corporation.The Si

31、mplay HDlogo and the Simplay, Simplay HDand Simplay Labstrademarks are owned by Silicon Image, Inc. and are used under license from Silicon Image, Inc.and/or Simplay Labs, LLC.Microsoft,Windows and Windows Media are registered trademarks of Microsoft Corporation in the United States and/or other cou

32、ntries.WMA (Windows Media Audio) is a proprietary file format developed by Microsoft.This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. U

33、se 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.DVD 38 OM(color).qxd 2/7/07 3:58 PM Page 47DV

34、D38 harman/kardonharman/kardon 5MODEL NAME : DVD 38 MODEL NAME : DVD 38 MP用MP用Description : Characteristics Specification ofAudioAudioTest Disc : YEDS7 (SONY), TDV-540A (ABEX)Test Conditions : 10k Load Terminated, AC100V 50/60HzTest Measuerment : VP-7722A (Audio Analyzer) ,CASCADE SYS-2522(AP)1.ANAL

35、OG AUDIO OUTPUTLimitResult1.ANALOG AUDIO OUTPUTLimitResultTEST DISCTEST DISCOutput LevelVrmsLRLevel differenceVrms 0.2F/ response dBLRRef.1kHz 0dBLRLRLRLREmphasis LCharacteristicdBRRef.1kHz 0dBLRS/NdBLRChannel SeparationdBLinearitydBL-90dB playbackRT.H.D%LRDynamic RangedBL-60dB playbackR全高調波歪率%LRDyn

36、amic RangedBLR全高調波歪率%L48RDynamic RangedBL48R2. DIGITAL OUTPUT2. DIGITAL OUTPUT 1) OPTICAL OUT JITTER 44.1kHzNormal 44.1kHz(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-

37、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 1YEDS7 (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 (SON

38、Y)TRACK 40YEDS7 (SONY)TRACK 41YEDS7 (SONY)TRACK 23YEDS7 (SONY)TRACK 30,34YEDS7 (SONY)TRACK 22TDV-540A (ABEX)TITLE 2, CHAPTER 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 Res

39、pones - Track 55(31Hz , 0dB) Reference Track 54 (61Hz) , Track 53 (81Hz) , Track 51(127Hz) PlaySW 192 / 24Output Level (V)T.H.D (%) 20KHz LPFFrequencyRespones (dB)Ref. : Tr. 38Downmix 2CHMuiti 5 CH48 / 2496 / 20Dynamic Range (dB)20KHz LPFLimitTrack Inform.S/N (dB) A FilterDVD38 harman/kardonharman/k

40、ardon 9DVD 38DVD 38visit 10Standby/On Switch:This electrical switch turns the DVD 38 on for playback, or leaves it in Standby mode for quick turn-on using thisswitch or the remote control.Power Indicator:This LED is next to the Standby/On Switch.Whenthe DVD 38 is plugged into AC power, the LED turns

41、 amber to indicatethat the DVD 38 is in Standby mode (ready to be turned on).When theDVD 38 is turned on (by pressing the Standby/On Switch), the LEDturns blue. If this LED ever turns red, immediately unplug the DVD 38.Check the wire connections. If the LED remains red, bring the DVD 38to an authori

42、zed Harman Kardon service provider.Open/Close:Press this button to open or close the disc drawer.When the DVD 38 is in Standby mode, press this button to turn it onand open the drawer. Before pressing this button, always make sure no objects are blocking the drawer. Remember to close the door or tur

43、n off the DVD 38 when you have finished.The door will close auto-matically after five minutes.Message Display:Various messages appear in this display in response to commands. In addition, a variety of indicators will light at various times to display the current playback mode, video settings or othe

44、r aspects of the DVD 38s status.Disc Drawer:This drawer holds a disc that is played in the DVD 38.Press the Open/Close Button to access it. Be sureto carefully seat alldiscs in the recess in the drawer tray.To avoid damaging the draweraccidentally, do not press down on it when open.The drawer will c

45、loseautomatically after five minutes of inactivity to prevent dust or dirt fromentering the DVD 38 and to prevent damage. If a disc is present, it willbegin playing.Play:Press to start playback of a loaded disc, or to resume play afterthe disc has been paused.Pause:Press to pause play, or to resume

46、after play has been momen-tarily paused.When a DVD is playing, a still image of the frozen actionwill appear on-screen. In Pause mode, you may access the Frame-by-Frame Advance and Slow Search functions by pressing the forward orreverse Step or Skip Buttons on the remote.The Disc Recognition functio

47、n is not activated by Pause mode.Stop:Press once to stop play and enter Resume mode, in whichpressing Play resumes playback from the point at which it was stopped.Press this button twice to fully stop play of the disc.The DiscRecognition function is activated by Resume mode, enabling you to turnoff

48、the player or change discs, then resume play from the point at whichit was stopped the next time the disc is loaded. Resume mode is notavailable for WMA files or VCDs without playback control.Skip/Search Reverse:Press once to return to the beginning of the current chapter or track. Quickly press aga

49、in to skip to previouschapters or tracks. Press and hold for fast search reverse within the current chapter or track at the speed indicated on-screen.Skip/Search Forward:Each press advances to the next chapter or track. Press and hold for fast search forward within the current chapter or track at th

50、e speed indicated on-screen.Remote IR Sensor:This sensor receives infrared commands fromthe remote control. It is important to ensure that it is not blocked. If covering the sensor is unavoidable, such as when the DVD 38 is placedinside a cabinet, you may use an optional Harman Kardon HE 1000,or oth