HarmanKardon-CDR2-cd-sm维修电路原理图.pdf

The Harman Kardon Model CDR2 Dual-Tray CD-R/CD-RW Recorder/Player T Technical Manualechnical Manual harman/kardon 250 Crossways Park Drive, Woodbury, New York 11797 1999 Harman Kardon, Incorporated Part #3828R-B004A RadioFans.CN - 2 - CONTENTS SPECIFICATIONS Signal Format Playback Sampling Frequency 44.1 kHz D/A Conversion 96kHz, Multi-Bit Delta-Sigma Conversion Oversampling 128 Times Playback Specifications Frequency Response 2Hz 20,050Hz Playback S/N 105dB Playback Dynamic Range 105dB Playback THD 0.005% / 88dB Analog Audio Output 2V RMS, 2dB Digital-Coaxial Output 0.5 Vpp/75 Headphone Output 1V RMS/32 Load Record Specifications Digital Input Sample Rates 32kHz 96kHz Recording S/N: Analog 91dB Recording S/N: Digital Dub Mode Equal to Source Recording S/N: Digital External Source Source 10dB Recording Dynamic Range 91dB Recording THD 0.005% / 85dB Analog Input Sensitivity 330 mV RMS 47k = 0dB Digital Inputs (Direct Recording) 44.1kHz, 100 ppm/min. General Power Requirement 120VAC/60Hz Power Consumption 48 Watts Dimensions Width 17.3/440mm Height 4.4/112mm Depth 14.2/363mm Weight 13.2 lb/6 kg SPECIFICATIONS .2 COMPONENTS AND THEIR FUNCTIONS .3 INTERNAL VIEW .6 DISASSEMBLY PROCEDURES .7 BLOCK DIAGRAM .13 TROUBLESHOOTING GUIDE.28 TROUBLESHOOTING GUIDE FOR CD-RW BOARD .33 I/F Board .57 EXPLODED VIEW/PARTS LIST .60 CD-RECORD MACHANISM .62 SCHEMATIC DIAGRAMS .63 PCB LAYOUT .69 WIRING DIAGRAM .78 GENERAL UNIT PARTS LIST .79 PACKAGE .92 RadioFans.CN - 3 - COMPONENTS AND THEIR FUNCTIONS GFRONT PANEL GREAR PANEL Play (CDP)-Deck Analog Output ecord (CDR)-Deck Analog Output Record (CDR)-Deck Analog Input Play (CDP)-Deck Coaxial-Digital Output Record (CDR)-Deck Coaxial-Digital Output Record (CDR)-Deck Coaxial-Digital Input Record (CDR)-Deck Optical-Digital Input Record (CDR)-Deck Optical-Digital Output Play (CDP)-Deck Optical-DIgital Output Remote IR Input Remote IR Output AC Power Cord 11 12 RadioFans.CN - 4 - Power Switch : Press this switch to apply power to the CDR 2. When the unit is firstturned on, the Status-Mode Indicatorsurrounding the switch will turn green. Once the unit has been turned on with this switch, it may be operated from either the front panel or remote control. Press the switch again to turn the unit completely off. Status-Mode Indicator : When the CDR 2 is in the ON mode, this indicator will glow green. When the unit has been placed in the Standby mode by pressing the Power-Off but- ton 32 on the remote, the indicator will glow amber, indicating that the unit is still connected to the AC main supply and is ready to be turned on from the remote control. Play Deck : This disc deck is used to play back conventional CD discs and CD-R or CD-RW discs that have been finalized. Headphone Jack : Connect standard head-phones to this jack for private listening. Headphone Level Control : Turn this control to adjust the volume level to the head-phones. Note that the use of this control will not change the analog output levels at the rear-panel audio outputs , . Digital Input : This coaxial digital input may be used to connect a portable digital audio player to the CDR 2 for digital recording. When an active digital signal is connected to both the front- and rear-panel coaxial inputs, the source connected to the front-panel input will be selected for recording. Play-Deck Open : Press this button to open the Play Deck . Record Button : Press this button to begin the recording process. CD Sync : Press this button once to begin an automated recording of a single track from an external CD player when a digital connection is used. Press it twice to begin automated recording of an entire disc. Dubbing : Press this button to begin the process of making a complete copy of the disc in the Play Deck to a CD-R or CD-RW disc in the Record Deck . Erase : Press this button to erase one or more tracks or the entire contents of an unfi-nalized CD-RW disc. When a CD-RW disc has already been finalized you may erase the entire disc or you may TOC nfinalize” the disc by erasing the TOC data. Finalize : Press this button when a record-ing is complete to initiate the finalization process. The Play/Select Buttonmust be pressed within three seconds to activate finalization. Until this button is pressed and the finalization process is complete, CD-R discs may not be played on conventional CD machines. Speed : Press this button to select the recording speed for internal dubs. Record-Deck Open : Press this button to open the Record Deck . Record Deck : This Disc Deck is used to play back CD, CD-R and CD-RW discs; it is also used for recording CDs Analog-Record Level Control : The con-trol is used to adjust the input level when making recordings from analog sources such as cas-settes, or when CDs are recorded in an analog mode. Record-Deck Stop : Press this button to stop the CD in the Record Deck. Record-Deck Play/Select : This button has two functions. It may be pressed when a standard CD is in the Record Deck to put the machine in play, or it may be used to enter a selection or start certain record functions. Record-Deck Pause : When the Record Deck is in the Play mode, pressing this button will pause the disc. If the disc has previously been paused, pressing this button will restart the playback. Record-Deck Next : This button has two functions. When a disc is playing in the Record Deck , press and hold this button to play the disc in a fast-forward mode to quickly locate a desired passage. At any time, tapping the but-ton and quickly releasing it will move to the next track on a disc in play, or enter the track for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button . Record Deck Previous : This button has two functions. When a disc is playing in the Record Deck , press and hold this button to play the disc in a fast reverse mode to quickly locate a desired passage. At any time, tapping the button and quickly releasing it will move to the beginning of the current track, and the next press will move to the previous track. When a disc is stopped, each press will move back one for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button . Input Select : Press this button to select the input source (analog, digital coax or digital optical) for recording. Record-Deck Display Select : Press this button to cycle through the time display options for the Record Deck. Information Display : The indicators in the Information Display provide status reports on the operation of the CDR 2. Remote Sensor : The IR sensor that receives the commands from the remote control is behind this area. Do not cover or obscure this part of the front panel to avoid any malfunction with the remote. GFRONT PANEL 1 2 2 3 4 5 6 7 8 9 10 11 15 12 18 13 14 15 15 18 18 15 15 16 17 18 19 20 21 22 23 24 25 3 3 - 5 - Play-Deck Display Select : Press this button to cycle through the time display options for the Play Deck. Dual-Play Selector : Press this button to enable both CD Decks to playback at the same time and function as separate, independent CD units. In this mode it is also possible to record from an external source while the Play Deck is functioning as a standard CD player. Play-Deck Next : This button has two functions. When a disc is playing in the Play Deck , press and hold this button to play the disc in a fast-forward mode to quickly locate a desired passage. At any time, tapping the button and quickly releasing it will move to the next track on a disc in play, or enter the track for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button . Play-Deck Previous : This button has two functions. When a disc is playing in the Play Deck , press and hold this button to play the disc in a fast-reverse mode to quickly locate a desired passage. At any time, tapping the but-ton and quickly releasing it will move to the beginning of the current track, and the next press will move to the previous track. When a disc is stopped, each press will move back one for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button . Play-Deck Pause : When the Play Deck is running, pressing this button will pause the disc. If the disc has previously been paused, pressing this button will restart the playback . Play-Deck Play : Press this button to begin playback of a CD in the Play Deck or the dub-bing process. Play-Deck Stop : Press this button to stop the CD in the Play Deck. Play (CDP)-Deck Analog Output : These jacks carry the analog audio output signal from the Play Deck . Connect them to the CD input jacks on a receiver, preamp or processor. Record (CDR)-Deck Analog Output : These jacks carry the output signal from the Record Deck . Connect them to the Tape Play/In input jacks on a receiver, preamp or processor. Record (CDR)-Deck Analog Input : These jacks accept the 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 jack carries the digital-audio out-put 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 jack carries the digital audio out-put signal from the Record Deck. Connect it to a coaxial digital input on a receiver, processor or digital decoder. Record (CDR)-Deck Coaxial-Digital Input : This jack accepts the digital-audio input signal from a compatible digital audio product and should be connected directly to a digital player or to a coaxial-digital output on a CD or DVD player or an A/V receiver or processor. IMPORTANT NOTE : The coaxial digital inputs should only be connected to digital input or output jacks. Even though they use the same RCA type connector as standard analog audio connections, DO NOT connect them to conven-tional analog input or output jacks. Record (CDR)-Deck Optical-Digital Input : This jack accepts the digital-audio input signal from a compatible digital audio product, and should be connected directly to the optical-digital output on a CD or DVD player or an A/V receiver or processor. Record (CDR)-Deck Optical-Digital Output : This jack carries the digital audio out-put signal from the Record Deck. Connect it to an optical digital input on a receiver, processor or digital decoder. Play (CDP)-Deck Optical-Digital Output : This jack carries 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 remote infrared sensor or the remote control output of another compatible Harman Kardon product to this jack. This will enable the remote control to operate even when the front- panel Remote Sensorblocked. This jack may also be used with compatible IR remote control based automation systems. Remote IR Output : Connect this jack to the IR input jack of another compatible Harman Kardon remote controlled product to have the built-in remote sensor the CDR 2 pro-vide IR signals to other compatible products. AC Power Cord : Connect this plug to an AC outlet. If the outlet is switch controlled, make certain that it is in the ON position. GREAR PANEL 3 3 1 2 3 3 3 3 4 5 6 7 8 9 10 11 12 15 15 15 25 25 26 27 28 29 30 31 31 31 32 - 6 - INTERNAL VIEW GTOP VIEW 81097 4 6 21 5 3 POWER 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 P.C. BOARD (PCB-6) REC VOLUME P.C. BOARD (PCB-7) POWER LED P.C. BOARD (PCB-8) - 7 - DISASSEMBLY PROCEDURES 1. PCB-(POWER SWITCH) REMOVAL 1. Power on and press open buttons and in Fig.1 2. Remove the CD Door and by pulling it toward you gently. 2. CABINET TOP REMOVAL 2 7 1 5 3 4 6 1. Remove screws to in Fig.2, and then remove the cover by sliding it to its rear a little. 2. Remove the cabinet top. - 8 - 4. POWER LEVER ASSEMBLY REMOVAL 1. 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 Knob assembly( ) 2 1 3 4 3. FRONT PANEL ASSEMBLY REMOVAL 5112762 4 8 910 11 3 1. Detach the connector to in Fig.3 2. Remove the front panel by hook-offto in Fig.3 and pulling it toward you gently. 3. Detach the connector 12 11 - 9 - 7 3 6 910 85 1 4 2 71514 13 1 2 12 8 11 3 109 6 4 5 5. PCB-1(Power) REMOVAL 6. PCB-2(I/O) REMOVAL 1. Detach the connector to in Fig.5 2. Remove screws to in Fig.5, and then remove PCB-1. 1. Detach the connector to in Fig.6 2. Remove screws to in Fig.6, and then remove PCB-2. 15 - 10 - 7. MECHA-1 (CDP) ASSEMBLY REMOVAL 8. MECHA-2 (CDR) ASSEMBLY REMOVAL 1 5 2 43 2 43 1 1. Remove screws to in Fig.7 2. Detach the connector in Fig.7, and the remove the Mecha-1. 1. Remove screws to in Fig.8 2. Remove the Mecha-2 and Cover Deck at the same time. - 11 - 9. PCB-5 (Front) REMOVAL 1. Remove screws to in Fig.9 2. 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 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 to PCB-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.10 4. 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.11 from the MECHA-2(CDR) 2. Detach the connector to in Fig.11 3. Remove the PCB-4 from the MECHA-1(CDR) 13. PCB-4(CDR) REMOVAL - 13 - BLOCK DIAGRAM 1. AK8563 Block Diagram - 14 - Pin Functions Pin NumberDesignatorI/OFunctions 1AVDD3IAnalog Positive Power Source Pin 2FPDINILaser Monitor Diode Contact Pin 3FVREFIReference Voltage Lev