HarmanKardon-DVD48-cd-sm维修电路原理图.pdf

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1、 harman kardon Model DVD 48DVD 48 DVD/CD/CD-R/CD-RW/VCD MP3 Player Service Manual - Contents - SERVICE PRECAUTIONS.2 BASIC SPECIFICATIONS.5 DETAILED SPECIFICATIONS.6 PACKAGE (120V).10 FRONT PANEL CONTROLS.11 INFORMATION DISPLAY.13 REAR PANEL CONNECTIONS.14 REMOTE CONTROL.16 CONNECTIONS.19 INSTALLATI

2、ON.22 BASIC TROUBLESHOOTING GUIDE25 DISASSEMBLY PROCEDURE (120/230v).27 EXPLODED VIEW (120v).28 BLOCK DIAGRAM.29 ELECTRICAL PARTS LIST (120v) .30 PCB DRAWINGS.53 SEMICONDUCTOR PINOUTS59 SCHEMATICS.168 WIRING DIAGRAM.174 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 8/2007

3、Released 2007 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 pressur

4、e 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 r

5、esult 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

6、 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 cam

7、era 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 swa

8、b. (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 s

9、kin.MagnetHow to hold the pick-upConductive SheetCotton swabPressurePressureDrop impact2RadioFans.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

10、 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

11、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

12、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 sol

13、dering 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

14、NEVER be directly facing the eyes or bare skin.Resistor(1 Mohm)ConductiveSheetResistor(1 Mohm)Armband3DVD48 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 electricity. Such components

15、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 elect

16、ricity.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 po

17、tential 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 so

18、ldering 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 su

19、fficient 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 mater

20、ials).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 SAFET

21、Y 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).4DVD48 h ha

22、ar rmmanan/k/karard do on n DVD 48 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) D

23、VD-Video,DVD-Audio,SACD,standard-conformingDVD-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,SACD, Linear PCM,MPEG,Window

24、s Media9, DolbyDigital or DTSaudio discsStill-image format:JPEGVideo Signal System:NTSC or PALHDMIOutput:Video: 480p, 720p, 1080i, 1080pHDMI Version 1.1-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 neg

25、ative 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)The DVD 48 is Simplay HD-verified for compatibility via the HDMI connection with other Simplay HD-verified products.Freq

26、uency 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 +0/0.5dBSACD:2Hz 100kHz +0/0.5dBSignal/Noise Ratio (SNR):105dB (A-weighted)Dynamic Range:DVD:100dB (18-bit)/105dB (20-bit)CD/DVD:96dB (16-bit)THD/1kH

27、z:DVD/CD: 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 Wei

28、ght:8.8 lb (4kg)Depth measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon and Logic 7 are trademarks of Harman International Industries, Incorporated, registered

29、in the United States and/or other countries.Designed to Entertain is a trademark of Harman International Industries, Incorporated.Blu-ray Disc is a trademark of the Blu-ray Disc Association.CEA (Consumer Electronics Association) is a registered trademark of the Consumer Electronics Association.Dolby

30、 and Pro Logic are registered trademarks, and MLP Lossless is a trademark, of Dolby Laboratories.DTS, DTS-ES, DTS Neo:6 and DTS 96/24 are registered trademarks of DTS, Inc.HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).HDMI (High-Definition Multimedia Interface) is a t

31、rademark of HDMI Licensing LLC.Kodak is a registered trademark, and Photo CD is a trademark, of Eastman Kodak Company.Microsoft,Windows and Windows Media are registered trademarks of Microsoft Corporation in the United States and/or other countries.WMA (Windows Media Audio) is a proprietary file for

32、mat developed by Microsoft.SACD (Super Audio CD) is a trademark of Sony Corporation.TrueLife is a trademark of Genesis Microchip Inc.The Simplay HD logo and the Simplay, Simplay HD and Simplay Labs trademarks are owned by Silicon Image, Inc. and are used under license from Silicon Image, Inc.and/or

33、Simplay Labs, LLC.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. Use of this copyright protection technology must be authorized by Ma

34、crovision 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 48 om.qxd 3/14/07 4:04 PM Page 495DVD48 harman/kardonharman/kardon ? ? ? ?A?22K?22K?22K?20K AES17?22K?20K AE

35、S17?22K?20K AES17? ? ? ? ? ? ?6DVD48 harman/kardonharman/kardon ?2. DVD-Audio Part (Test Disc V-612 , JVC)?3. SACD Part (Test Disc : DAC Ver1.2 , Philips)? ? ?(p )? ? ?7DVD48 harman/kardonharman/kardon ? ? ?TDV-540A?8DVD48 harman/kardonharman/kardon ? ? ?9DVD48 harman/kardonharman/kardon DVD 48DVD 4

36、8DVD 48109FRONT-PANEL CONTROLSStopDisc DrawerDisplayDimmerMessage Displays and IndicatorsPowerIndicatorStandby/OnPlaySkip/SearchReverseRemote IRSensorPauseSkip/SearchForwardOpen/CloseNOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of t

37、his page may be downloaded from the Product Support section .DVD 48 om.qxd 3/14/07 4:03 PM Page 9FRONT PANEL CONTROLS11DVD48 harman/kardonharman/kardon 10Standby/On Switch:This electrical switch turns the DVD 48 on for playback, or leaves it in Standby mode for quick turn-on using thisswitch or the

38、remote control.Power Indicator:This LED is next to the Standby/On Switch.Whenthe DVD 48 is plugged into AC power, the LED turns amber to indicatethat the DVD 48 is in Standby mode (ready to be turned on).When theDVD 48 is turned on (by pressing the Standby/On Switch), the LEDturns blue. If this LED

39、ever turns red, immediately unplug the DVD 48.Check the wire connections. If the LED remains red, bring the DVD 48to an authorized Harman Kardon service provider.Open/Close:Press this button to open or close the disc drawer.When the DVD 48 is in Standby mode, press this button to turn it onand open

40、the drawer. Before pressing this button, always make sure that no objects are blocking the drawer. Remember to close the door or turn off the DVD 48 when you have finished.The door will closeautomatically after two and a half minutes.Message Display:Various messages appear in this display in respons

41、e to commands. In addition, a variety of indicators will light at various times to display the current playback mode, video settings or other aspects of the DVD 48s status.Disc Drawer:This drawer holds a disc that is played in the DVD 48.Press the Open/Close Button to access it. Be sureto carefully

42、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 closeautomatically after two and a half minutes of inactivity to prevent dust or dirt from entering the DVD 48 and to prevent damage. If a disc ispresent, it wil

43、l begin 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 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

44、 the Frame-by-Frame Advance and Slow Search functions by pressing the forward orreverse Step or Skip Buttons on the remote.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 t

45、he disc. Resume mode isnot available 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 again to skip to previouschapters or tracks. Press and hold for fast search reverse within the current chapter

46、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 the speed indicated on-screen.Remote IR Sensor:This sensor receives infrared commands fromthe remote control.

47、It is important to ensure that it is not blocked. If covering the sensor is unavoidable, such as when the DVD 48 is placedinside a cabinet, you may use an optional Harman Kardon HE 1000,or other infrared receiver, connecting it to the Remote IR Input on theDVD 48s rear panel.Alternatively, connect t

48、he Remote IR Output ofanother compatible component, such as a Harman Kardon AVR, to the DVD 48s Remote IR Input. Point the remote at the other devicesremote sensor, and the command will be transmitted to the DVD 48.An external IR “blaster” may also be used, positioned to point at this area.Dimmer:So

49、me people find the front-panel display distracting,especially while watching a movie. Each press of this button cyclesthrough the front-panel brightness options of Full Brightness, Half Brightness and Off.The Power Indicator always remains lit to remind you that the DVD 48 is turned on, but the disp

50、lay will remain dimmed or off, even when a command is entered. Dimming is canceled whenthe DVD 48 is turned off.Open/Close:Press this button to open or close the disc drawer.FRONT-PANEL CONTROLSDVD 48 om.qxd 3/14/07 4:03 PM Page 1012DVD48 harman/kardonharman/kardon 11FRONT-PANEL INFORMATION DISPLAYD