HarmanKardon-DVD22-cd-sm2维修电路原理图.pdf

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1、 harman kardon Model DVD 22DVD 22 DVD/CD/CD-R/CD-RW/VCD MP3 Player Service Manual - Contents - SERVICE PRECAUTIONS.2 SPECIFICATIONS.5 FRONT PANEL CONTROLS.6 INFORMATION DISPLAY.7 REMOTE CONTROL.8 REAR PANEL CONNECTIONS.10 INSTALLATION/CONNECTIONS.11 BASIC TROUBLESHOOTING GUIDE.15 RESET INSTRUCTIONS.

2、15 EXPLODED VIEW/PARTS LIST.16 BLOCK DIAGRAM.17 BULLETIN HK2004-03.18 BULLETIN HK2005-02.20 TECH TIP HKTT2005-01.21 ELECTRICAL PARTS LIST.22 MECHANICAL PARTS LIST.29 SEMICONDUCTOR PINOUTS.31 PCB DRAWINGS38 SYSTEM CONFIGURATION SPECS.47 SCHEMATICS.48 PACKAGE.61 harman/kardon, Inc. 250 Crossways Park

3、Dr. Woodbury, New York 11797 Rev4 5/2005 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 externa

4、l 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 impa

5、ct, 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 d

6、amage 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 us

7、edfor 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 c

8、otton 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

9、exposed skin.MagnetHow to hold the pick-upConductive SheetCotton swabPressurePressureDrop impact2 DVD22 harman/kardon DVD22 harman/kardon RadioFans.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 (las

10、er 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 c

11、omponents. 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 e

12、quipment, 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

13、) 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

14、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)Armband3 D DV VD D2 22 2 h ha ar rmma an n/ /k ka ar rd do on n 3ESD PRECAUTIONSElectrostatically Sensitive Devices (ESD)Some semiconductor (solid state) de

15、vices 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 h

16、elp 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 avail

17、able 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 charg

18、e 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

19、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 toget

20、her 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 POW

21、ER 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

22、static electricity sufficient to damage an ESD device).4 D DV VD D2 22 2 h ha ar rmma an n/ /k ka ar rd do on n DVD 22 TECHNICAL SPECIFICATIONSApplicable Disc:Disc formats: 5-inch (12cm) or 3-inch (8cm) DVD-Movie, Standard conforming DVD-R, DVD+R, DVD-RW, DVD+RW,VCD, CD, CD-R, MP3 or CD-RW discsRegi

23、on code: DVD Movie 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 9, Dolby Digital or DTS Audio DiscsStill image format: JPEGVideo Signal System:NTSCComposite Video Output:1V p-p/75 ohms, sync

24、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 maxFrequency Response:DVD (Linear PCM):2Hz 22kHz +0/0.5dB (48

25、kHz sampling)2Hz 44kHz +0/0.5dB (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:1102400VAC/5060HzPower Consumption:2 Watts (On/St

26、andby)/20 Watts (Max)Dimensions (W x H x D):17-3/10 x 1-15/16 x 12 (440mm x 49mm x 330mm)Weight:7.3 lb (3.3kg)Depth measurement includes knobs and connectors.Height measurement includes feet and chassis.All specifications subject to change without notice.Harman Kardon and Power for the Digital Revol

27、ution are registered trademarks of Harman International Industries, Incorporated.*Dolby is a registered trademark of Dolby Laboratories Licensing Corporation. Manufactured under license from Dolby Laboratories.“Dolby” ,“Pro Logic” and the double-D symbol are registered trademarks of Dolby Laboratori

28、es. Confidential Unpublished Works. 1992-1997 Dolby Laboratories, Inc.All rights reserved.“DTS” is a registered trademark of Digital Theater Systems, Inc.Windows Media is a registered trademark of Microsoft Corporation in the United States and/or other countries.This product incorporates copyright p

29、rotection 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

30、 limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.5 D DV VD D2 22 2 h ha ar rmma an n/ /k ka ar rd do on n FRONT-PANEL CONTROLS 7FRONT-PANEL CONTROLS1 Power Indicator: This indicator lights amber whenthe unit is connec

31、ted 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 22 on. Press it again to put the unit in the Standby mode. Note that in order for this switchto operate, the Main Power Switch?must bepressed in

32、 so that it is in the ON position.2Play: Press to initiate playback or to resume playback after the Pause Button4Chas 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 displ

33、ayed when the button is pressed.4Stop: Press this button once to place the disc inthe Resume mode, which means that playback willstop, but as long as the tray is not opened or the discchanged, DVD playback will continue from the samepoint on the disc when the Play Button2Gispressed again. Resume wil

34、l also work if the unit wasturned off.To stop a disc and have play start from thebeginning, 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 avail

35、able 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 K.7 Skip/Search Forward: Press this button once tomove to the start of the next chapter for a DVD ortrack for a CD. Subsequent

36、 presses 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 K.8 Remote Sensor: The sensor that receives com-mands from the remote control is behin

37、d the 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 sens

38、or to the Remote Control Input on the rear panel (see page 11).When optional,external IR “blasters” are used for system control, theyshould be positioned so that they point at this area.8Display: Press this button to reduce the bright-ness of the Information Display by 50% or to turn thedisplay off

39、completely in the following order: FULLBRIGHTNESS 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 p

40、layer.!Open/Close: Press this button to open or closethe disc tray. Information Display: The Information Displayprovides status information on the player and the discbeing played through a series of specific indicators andmessages that appear in the dot matrix display. Seepage xx for more informatio

41、n on the display.?Power Indicator 1Power On/Off (Standby)2Play3Pause4Stop5Skip/Search Reverse 6Skip/Search Forward7Remote Sensor8Display9Disc Drawer!Open/Close Information DisplayNOTE: To make it easier to follow the instructions that refer to the controls and connectors in this illustration, a larg

42、er copy may be downloaded from the Product Support sec-tion for this product at .6 D DV VD D2 22 2 h ha ar rmma an n/ /k ka ar rd do on n 8FRONT-PANEL INFORMATION DISPLAYFRONT-PANEL INFORMATION DISPLAYA Disc-Type IndicatorsB Program IndicatorC Random IndicatorD Repeat IndicatorsE VCD Playback Contro

43、l IndicatorF A-B Repeat IndicatorG V-OFF IndicatorH Angle IndicatorI Parental Lock IndicatorJ Progressive IndicatorK Playback-Mode IndicatorL Title IndicatorsM Chapter/Track Number IndicatorsN Time IndicatorsA Disc Type Indicators: The DVD, CD,VCD, MP3,WMA or JPEG indicator will light to show the ty

44、pe ofdisc currently being played.B Program Indicator: This indicator lights when theprogramming functions are in use.C Random Indicator: This indicator lights when theunit is in the Random Play mode.D Repeat Indicators: These indicators light whenany of the Repeat functions are in use.E VCD Playback

45、 Control Indicator: This indicatorlights when the playback control function is turned onwith VCDs.F A-B Repeat Indicator: This indicator lights whena specific passage for repeat playback has beenselected.G V-OFF Indicator: This indicator lights in red whenthe units video output has been turned off b

46、y pressingthe V-OFF button on the remote control.H Angle Indicator: This indicator blinks when alternative viewing angles are available on the DVD currently playing.I Parental Lock Indicator: This indicator lightswhen the parental-lock system is engaged in order toprevent anyone from changing the ra

47、ting level withouta code.J Progressive Scan Indicator: This indicator lightswhen the unit sends out a progressive scan signal.K Playback-Mode Indicators: These indicatorslight to show the current playback mode:Lights when a disc is playing in the normal mode. When the DVD 22 is in the Fast Search pl

48、aymode, two or three of these indicators will light toshow that the unit is in a Fast Play mode, dependingon the speed. Lights when the disc is paused.Lights when the disc is in the Fast SearchReverse mode.L Title Indicators: These two positions in the dis-play will show the current title number whe

49、n a DVDdisc is playing.M Chapter/Track Number Indicators: When aDVD disc is playing, these two positions in the displaywill show the current chapter.When a CD disc is play-ing they will show the current track number.N Time Indicators: These positions in the indicatorwill show the running time of a D

50、VD in play.When aCD is playing, these indicators will show the currenttrack time, time remaining in the current track, or thetotal remaining time on the disc.NOTE: The indicators LMN will also display textmessages about the DVDs status, including Readingwhen a disc is loading, Standby when the unit