HarmanKardon-CDR2-cd-sm维修电路原理图.pdf

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1、The Harman KardonModel CDR2Dual-Tray CD-R/CD-RW Recorder/PlayerT Technical Manualechnical Manualharman/kardon250 Crossways Park Drive, Woodbury, New York 1999 Harman Kardon, IncorporatedPart #3828R-B004ARadioFans.CN 收音机爱 好者资料库- 2 -CONTENTSSPECIFICATIONSSignal FormatPlayback Sampling Frequency 44.1 k

2、HzD/A Conversion 96kHz, Multi-Bit Delta-Sigma ConversionOversampling 128 TimesPlayback SpecificationsFrequency Response 2Hz 20,050HzPlayback S/N 105dBPlayback Dynamic Range 105dBPlayback THD 0.005% / 88dBAnalog Audio Output 2V RMS, 2dBDigital-Coaxial Output 0.5 Vpp/75Headphone Output 1V RMS/32 LoadR

3、ecord SpecificationsDigital Input Sample Rates 32kHz 96kHzRecording S/N: Analog 91dBRecording S/N: Digital Dub Mode Equal to SourceRecording S/N: Digital External Source Source 10dBRecording Dynamic Range 91dBRecording THD 0.005% / 85dBAnalog Input Sensitivity 330 mV RMS 47k = 0dBDigital Inputs (Dir

4、ect Recording) 44.1kHz, 100 ppm/min.GeneralPower Requirement 120VAC/60HzPower Consumption 48 WattsDimensionsWidth 17.3/440mmHeight 4.4/112mmDepth 14.2/363mmWeight 13.2 lb/6 kgSPECIFICATIONS .2COMPONENTS AND THEIR FUNCTIONS .3INTERNAL VIEW .6DISASSEMBLY PROCEDURES .7BLOCK DIAGRAM .13TROUBLESHOOTING G

5、UIDE.28TROUBLESHOOTING GUIDEFOR CD-RW BOARD .33I/F Board .57EXPLODED VIEW/PARTS LIST .60CD-RECORD MACHANISM .62SCHEMATIC DIAGRAMS .63PCB LAYOUT .69WIRING DIAGRAM .78GENERAL UNIT PARTS LIST .79PACKAGE .92RadioFans.CN 收音机爱 好者资料库- 3 -COMPONENTS AND THEIR FUNCTIONSGFRONT PANELGREAR PANELPlay (CDP)-Deck

6、Analog Outputecord (CDR)-Deck Analog OutputRecord (CDR)-Deck Analog InputPlay (CDP)-Deck Coaxial-Digital OutputRecord (CDR)-Deck Coaxial-Digital OutputRecord (CDR)-Deck Coaxial-Digital InputRecord (CDR)-Deck Optical-Digital InputRecord (CDR)-Deck Optical-Digital OutputPlay (CDP)-Deck Optical-DIgital

7、 OutputRemote IR InputRemote IR OutputAC Power Cord1112- 4 -Power Switch : Press this switch to apply power to theCDR 2. When the unit is firstturned on, the Status-ModeIndicatorsurrounding the switch will turn green. Oncethe unit has been turned on with this switch, it may beoperated from either th

8、e front panel or remote control. Pressthe switch again to turn the unit completely off.Status-Mode Indicator : When the CDR 2 is in the ONmode, this indicator will glow green. When the unit has beenplaced in the Standby mode by pressing the Power-Off but-ton 32 on the remote, the indicator will glow

9、 amber,indicating that the unit is still connected to the AC mainsupply and is ready to be turned on from the remote control.Play Deck : This disc deck is used to play backconventional CD discs and CD-R or CD-RW discs that havebeen finalized.Headphone Jack : Connect standard head-phones tothis jack

10、for private listening.Headphone Level Control : Turn this control to adjustthe volume level to the head-phones. Note that the use ofthis control will not change the analog output levels at therear-panel audio outputs , .Digital Input : This coaxial digital input may be used toconnect a portable digi

11、tal audio player to the CDR 2 fordigital recording. When an active digital signal is connectedto both the front- and rear-panel coaxial inputs, the sourceconnected to the front-panel input will be selected forrecording.Play-Deck Open : Press this button to open the PlayDeck .Record Button : Press th

12、is button to begin the recordingprocess. CD Sync : Press this button once to begin an automatedrecording of a single track from an external CD player whena digital connection is used. Press it twice to beginautomated recording of an entire disc. Dubbing : Press this button to begin the process ofmak

13、ing a complete copy of the disc in the Play Deck to aCD-R or CD-RW disc in the Record Deck . Erase : Press this button to erase one or more tracks orthe entire contents of an unfi-nalized CD-RW disc. When aCD-RW disc has already been finalized you may erase theentire disc or you may TOC nfinalize” t

14、he disc by erasingthe TOC data. Finalize : Press this button when a record-ing iscomplete to initiate the finalization process. ThePlay/Select Buttonmust be pressed within threeseconds to activate finalization. Until this button is pressedand the finalization process is complete, CD-R discs maynot b

15、e played on conventional CD machines. Speed : Press this button to select the recording speedfor internal dubs. Record-Deck Open : Press this button to open theRecord Deck .Record Deck : This Disc Deck is used to play back CD,CD-R and CD-RW discs; it is also used for recording CDsAnalog-Record Level

16、 Control : The con-trol is used toadjust the input level when making recordings from analogsources such as cas-settes, or when CDs are recorded inan analog mode. Record-Deck Stop : Press this button to stop the CD inthe Record Deck.Record-Deck Play/Select : This button has twofunctions. It may be pr

17、essed when a standard CD is in theRecord Deck to put the machine in play, or it may be usedto enter a selection or start certain record functions. Record-Deck Pause : When the Record Deck is in thePlay mode, pressing this button will pause the disc. If thedisc has previously been paused, pressing th

18、is button willrestart the playback.Record-Deck Next : This button has two functions.When a disc is playing in the Record Deck , press andhold this button to play the disc in a fast-forward mode toquickly locate a desired passage. At any time, tapping thebut-ton and quickly releasing it will move to

19、the next trackon a disc in play, or enter the track for programming or playwhen the disc is stopped. Once a track is entered, it may beplayed by simply pressing the Play button .Record Deck Previous : This button has two functions.When a disc is playing in the Record Deck , press andhold this button

20、 to play the disc in a fast reverse mode toquickly locate a desired passage. At any time, tapping thebutton and quickly releasing it will move to the beginning ofthe current track, and the next press will move to theprevious track. When a disc is stopped, each press willmove back one for programming

21、 or play when the disc isstopped. Once a track is entered, it may be played bysimply pressing the Play button .Input Select : Press this button to select the inputsource (analog, digital coax or digital optical) for recording. Record-Deck Display Select : Press this button to cyclethrough the time d

22、isplay options for the Record Deck. Information Display : The indicators in the InformationDisplay provide status reports on the operation of the CDR2. Remote Sensor : The IR sensor that receives thecommands from the remote control is behind this area. Donot cover or obscure this part of the front p

23、anel to avoid anymalfunction with the remote.GFRONT PANEL12234567891011151218131415151818151516171819202122232425 33- 5 -Play-Deck Display Select : Press this button to cyclethrough the time display options for the Play Deck. Dual-Play Selector : Press this button to enable bothCD Decks to playback

24、at the same time and function asseparate, independent CD units. In this mode it is alsopossible to record from an external source while the PlayDeck is functioning as a standard CD player. Play-Deck Next : This button has two functions. When adisc is playing in the Play Deck , press and hold thisbut

25、ton to play the disc in a fast-forward mode to quicklylocate a desired passage. At any time, tapping the buttonand quickly releasing it will move to the next track on a discin play, or enter the track for programming or play when thedisc is stopped. Once a track is entered, it may be playedby simply

26、 pressing the Play button .Play-Deck Previous : This button has two functions.When a disc is playing in the Play Deck , press and holdthis button to play the disc in a fast-reverse mode to quicklylocate a desired passage. At any time, tapping the but-tonand quickly releasing it will move to the begi

27、nning of thecurrent track, and the next press will move to the previoustrack. When a disc is stopped, each press will move backone for programming or play when the disc is stopped.Once a track is entered, it may be played by simplypressing the Play button .Play-Deck Pause : When the Play Deck is run

28、ning,pressing this button will pause the disc. If the disc haspreviously been paused, pressing this button will restart theplayback .Play-Deck Play : Press this button to begin playback ofa CD in the Play Deck or the dub-bing process.Play-Deck Stop : Press this button to stop the CD in thePlay Deck.

29、Play (CDP)-Deck Analog Output : These jacks carrythe analog audio output signal from the Play Deck .Connect them to the CD input jacks on a receiver, preampor processor.Record (CDR)-Deck Analog Output : These jackscarry the output signal from the Record Deck . Connectthem to the Tape Play/In input j

30、acks on a receiver, preampor processor.Record (CDR)-Deck Analog Input : These jacks acceptthe analog signals that are used for CD recordings.Connect them to the Tape Rec/Play outputs on a receiver,preamp or processor.Play (CDP)-Deck Coaxial-Digital Output : This jackcarries the digital-audio out-put

31、 signal from the Play Deck. Connect it to a coaxial-digital input on a receiver,proces-sor or digital decoder.Record (CDR)-Deck Coaxial-Digital Output : This jackcarries the digital audio out-put signal from the RecordDeck. Connect it to a coaxial digital input on a receiver,processor or digital dec

32、oder.Record (CDR)-Deck Coaxial-Digital Input : This jackaccepts the digital-audio input signal from a compatibledigital audio product and should be connected directly to adigital player or to a coaxial-digital output on a CD or DVDplayer or an A/V receiver or processor. IMPORTANT NOTE : The coaxial

33、digital inputs should onlybe connected to digital input or output jacks. Even thoughthey use the same RCA type connector as standard analogaudio connections, DO NOT connect them to conven-tionalanalog input or output jacks.Record (CDR)-Deck Optical-Digital Input : This jackaccepts the digital-audio

34、input signal from a compatibledigital audio product, and should be connected directly tothe optical-digital output on a CD or DVD player or an A/Vreceiver or processor.Record (CDR)-Deck Optical-Digital Output : This jackcarries the digital audio out-put signal from the RecordDeck. Connect it to an o

35、ptical digital input on a receiver,processor or digital decoder.Play (CDP)-Deck Optical-Digital Output : This jackcarries the digital audio out-put signal from the Play Deck. Connect it to an optical-digital input on a receiver,proces-sor or digital decoder.Remote IR Input : Connect the output of a

36、remoteinfrared sensor or the remote control output of anothercompatible Harman Kardon product to this jack. This willenable the remote control to operate even when the front-panel Remote Sensorblocked. This jack may also beused with compatible IR remote control based automationsystems.Remote IR Outp

37、ut : Connect this jack to the IR inputjack of another compatible Harman Kardon remotecontrolled product to have the built-in remote sensor theCDR 2 pro-vide IR signals to other compatible products.AC Power Cord : Connect this plug to an AC outlet. Ifthe outlet is switch controlled, make certain that

38、 it is in theON position.GREAR PANEL331233334567891011121515152525262728293031313132- 6 -INTERNAL VIEWGTOP VIEW81097462153POWER P.C. BOARD (PCB-1)IO P.C. BOARD (PCB-2)CDP MECHANISM ASSY (MECHA-1)CDR MECHANISM ASSY (MECHA-2)CDP P.C. BOARD (PCB-3)CDR P.C. BOARD (PCB-4)FRONT P.C. BOARD (PCB-5)HEADPHONE

39、 P.C. BOARD (PCB-6)REC VOLUME P.C. BOARD (PCB-7)POWER LED P.C. BOARD (PCB-8)- 7 -DISASSEMBLY PROCEDURES1. PCB-(POWER SWITCH) REMOVAL1. Power on and press open buttons and in Fig.12. Remove the CD Door and by pulling it toward you gently.2. CABINET TOP REMOVAL27153461. Remove screws to in Fig.2, and

40、then remove the cover by sliding it to its rear a little.2. Remove the cabinet top.- 8 -4. POWER LEVER ASSEMBLY REMOVAL1. Pull-out the Power Lever assembly( ) from Power Switch on the PCB-1.2. Pull-out the Power Knob assembly( ) from the power Lever( )3. Remove the PCB-8(Power LED ) from the Power K

41、nob assembly( )21343. FRONT PANEL ASSEMBLY REMOVAL5112762489101131. Detach the connector to in Fig.32. Remove the front panel by hook-offto in Fig.3 andpulling it toward you gently.3. Detach the connector 1211- 9 -7369108514271514 13121281131096455. PCB-1(Power) REMOVAL6. PCB-2(I/O) REMOVAL1. Detach

42、 the connector to in Fig.52. Remove screws to in Fig.5, and then remove PCB-1.1. Detach the connector to in Fig.62. Remove screws to in Fig.6, and then remove PCB-2.15- 10 -7. MECHA-1 (CDP) ASSEMBLY REMOVAL8. MECHA-2 (CDR) ASSEMBLY REMOVAL1524324311. Remove screws to in Fig.72. Detach the connector

43、in Fig.7, and the remove the Mecha-1.1. Remove screws to in Fig.82. Remove the Mecha-2 and Cover Deck at the same time.- 11 -9. PCB-5 (Front) REMOVAL1. Remove screws to in Fig.92. Pull-out the PCB-5 from the Front Panel.10. PCB-6(Headphone) Removal.1. Remove screws to in Fig.9 2. Pull-out the Rotate

44、 Volume in Fig.1 from the PCB-6(Headphone). 3. Remove the PCB-6 from the Front Panel.11. PCB-7(REC Volume) Removal.1. Remove screws to in Fig.9 2. Pull-out the Rotate Volume in Fig.1 from the PCB-7(REC Volume).3. Remove the PCB-7 from the Front Panel.1. unsolder the motor lead to which are connected

45、 toPCB-3.2. Pull-out the PCB-3 by hook-off to in Fig.10 from the MECHA-1(CDP)3. Detach the connector to in Fig.104. Remove the PCB-3 from the MECHA-1(CDP).12. PCB-3(CDP) REMOVAL- 12 -1. Pull-out the PCB-4 by hook-off to in Fig.11from the MECHA-2(CDR)2. Detach the connector to in Fig.113. Remove the

46、PCB-4 from the MECHA-1(CDR)13. PCB-4(CDR) REMOVAL- 13 -BLOCK DIAGRAM1. AK8563Block Diagram- 14 - Pin FunctionsPin NumberDesignatorI/OFunctions1AVDD3IAnalog Positive Power Source Pin2FPDINILaser Monitor Diode Contact Pin3FVREFIReference Voltage Level Input Pin for APC4FPDOI/OLaser Monitor Output (Con

47、nect I/V conversion resistor betweenFPDIN)/Laser Monitor Voltage Input5WREFIPower Setting Voltage Input for Write APC6VWDCOLaser Driver Control Output for Write7VWDCNILaser Driver Control Amp (-) Pin for Write8MPPOMain Push-Pull Signal Output9TEINIInput for Tracking Signal Processor10TEOTracking Err

48、or Signal Output11FEOFocus Error Signal Output12BIASOBias Resistance Contact Pin. RBIAS=4.7k13AGND1ODecoupling Pin for Internal Reference Voltage14VREFI/ODecoupling Pin for Internal Reference Voltage/Reference Voltage Input Pin15NC(VSS)-16XLATILatch Input for Register Settings17SDATAIData Input for

49、Register Settings18SCLKIClock Input for Register Settings19MCLKIMain Clock Input (34.5744 MHz)20DVSSIDigital Ground Pin21DVDDIDigital Positive Power Source Pin22ATFGOATIP FG Output (Wobble Signalafter binary Operation)23XTOROTracking Amplitude Detection Output24XTANDOOff-Track Detection Output25TZCO

50、Tracking Zero-Cross Detection Signal Output26RECD2ORecording Area Detection Signal 2. H Recorded Section, L UnrecordedSection27RECD1ORecording Area Detection Signal 1. H Recorded section, L UnrecordedSection28RZCORF Zero-Cross Detection Signal Output29DECEFMOEFM Output after Slice (reverse)30XDECEFM