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
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