Kenwood-KDC-8021-Service-Manual电路原理图.pdf

PREOUTTEXTCOMPACTDIGITAL AUDIOPTY/D.REPTIRDSLOUDSTATTSQINF.SELRDMP.M/M.RDMREADYSIRIUSAUTOSCNNF50Wx4SRCDAB1/5 2/6 3/7 4/8REP MENUAUDOFFANGSCRLKDC-X859PREOUTTEXTCOMPACTDIGITAL AUDIOPTY/D.REPTIRDSLOUDSTATTP/SINF.SELRDMP.M/M.RDMTISCNNF50Wx4SRCDAB1/5 2/6 3/7 4/8REP MENUAUDOFFANGSCRLKDC-M9021GSMTEXTCOMPACTDIGITAL AUDIOPTY/D.REPTIRDSLOUDSTATTP/SINRDMP.M/M.RDMTISCN50Wx4SRCDAB1/5 2/6 3/7 4/8REP MENUAUDOFFANGSCRLKDC-8021GSMKDC-8021/M9021/X859CD RECEIVER SERVICE MANUALC2002-2 PRINTED IN KOREAB51-7901-00 (K) 3169 The CD mechanism information is not in this service manual.Please, refer to service manual.KDC-M9021/X859 : X92-4460-0x(B51-7891-00)KDC-8021 : X92-4450-01(B51-7889-00)Panel assy(A64-2567-02)KDC-X859Panel assy(A64-2588-02)Panel assy(A64-2587-02)KDC-M9021KDC-8021Escutcheon assy(B07-3007-03)Escutcheon assy(B07-3007-03)Escutcheon assy(B07-3007-03)1DC cord(E30-4939-05)DC cord(E30-4956-05)Plastic cabinet assy(A02-1497-13)Remote con.assy(A70-)Antenna adaptor(T90-0523-05)Escutcheon(B07-3010-02)Mounting hardware assy(J21-9716-03)Lever(D10-4562-04)Bracket (L)(J19-5051-03)Torsion coil spring(G01-2924-04)Screw set(N99-1722-05)Screw set(N99-1704-05)Remote con.assy(A70-0886-15) Bracket (R)(J19-5052-03)Depends on model. Refer to the parts list.ILLTEL MUTEACCANT CONP CONBACK UPEXT AMP CONTPLL+BBUFFERDECODERRDSE-VOLMPXN.C.IF+BSYSTEM u-COMRESETSWA8V SW14VEXT AMP CONTDIMMERACC DETTEL MUTEP CONB.U DETANT CONSW5V B.U. 5VPAN5VMASKMECHAPOWER ICTHERMOPROTECTIC4MUTEPRE AMP4.5VIC11-13SP OUTPRE OUTRESETAM+BFM+BNOISEBUFFERSPEANAAGC OP AMPSYSTEME'S+MUTE DRIVERIC94.5VSERVOAVRDC/DC4.5V PREIC15DRIVERMASKREMOO-CEO-CLKO-DATASTEERING REMOTEEXTERNAL DISPLAYDC/DCREGCD4.7VDC/DCIC7MATRIXKEYREMOFL3.3V SWVFD (GRADATED)SPEANABPFG/R SWPANELu-COMFL+B SWVFD (GRADATED)MATRIXKEYRESETSWFL3.3V SWREMOROMFL+B SWPANELu-COMSPEANABPFG/R SWIC10IC14IC2CONTROL1.8VPRE OUTPRE OUT OUTPUT VOLTAGEIC1IC5IC8251mV (E) TYPE470mV (K) TYPEFM:AM:230mVF/ECDCH(X16-160)FL (2 COLOR) TYPE(X16-161)FL (GRADATED) TYPE (X16-158)(X16-159)AUDIOS-METERIFC OUTPLL DATAPLL CLKSW5VFMAMCDCHANGERS METERQUALSDA SCKS MUTEA 8VMASK SW1RCLKQUALRDATANOISES METERAFSIFC OUTPLL DATAPLL CLKSW1M RSTLO/EJMO SWMUTE RMUTE LM STOPSW3DATA C CH RSTCH MUTESW2DATA HCH CONCH CLKREQ HREQ CMASK DETRESETAM+B FM+BSCKSDAPRE MUTEMUTEBEEPP MUTEACC DETPHONEDIMMEREXT AMP CONTP CONPAN5VP ONANT CONTB.U. DETSW5VSW5VCH MUTECH RSTDATA HDATA CCH CONREQ CCH CLKREQ HBACK UP1200mVCD4.7VSERVO +BA8VPAN5VB.U. 5VSW5VMUTE AC GNDBACK UPSW5VB.U.5V+BFM4500mVCDAM 750mV2250mV1069mV1715mV(K) TYPE (E) TYPE4500mVB.U. 5VSW5VSCKSDAB.U. 5V-BSERVO+B+B-BMASK SW2 MASK SW3 O-CEREMO O-DATAO-CLKMASK + MASK - CD-MECHA+BILLONCD4.7VPANEL 5VPANEL 5VVDD1 VDD2FACPANEL 5VPANEL 5VVDD1 VDD2FACAFSMS CLKMS DATAM STOPM RSTMUTE LMUTE RMO SWLO/EJSW1SW2SW3A8VB.U. 5V(MP3. WMA)CH3600mV1372mV855mV(E) TYPE4.5V PRE 1.8V PREMODE4500mV 4500mV 3600mV1200mVKDC-8021/M9021/X8592BLOCK DIAGRAMKDC-8021/M9021/X8593COMPONENT DESCRIPTIONElement Purpose H.Without RDS andLRBDS: “L“.12BEEPOBeep output terminal.LLSince there is no13REMOIWired remote inputwired remote control,terminal.connected to GND.14N.COOutput Open. Not used.L15N.COOutput Open. Not used.L16IC2-SDAI/OIC2, IC5 and CD mechanism DATA line.Hi-ZHi-Z17IC2-SCLI/OIC2, IC5 and CDmechanism CLOCK line.Hi-ZHi-Z“L“ when M MUTE R is L (during CD playback). “H“ (other sources18PRE-MUTE ROPREOUT(Rch)MUTE“L“ during momentarythan CD)Hpower down. “H“ only in2-zone operation.“L“ when M MUTE R isL (during CD playback). 19PRE-MUTE LOPREOUT(Lch)MUTE“L“ during momentaryH (other sources Hpower down. “H“ only inthan CD)2-zone operation.20N.COOutput Open. Not used.L21TEST-Test pin.Normal: “L“. During22N.C(SVR)Opower OFF: “H“ in 5 sec.“H“ (“L“ in 5 sec.Power OFF: Hafter Power OFF).23P-MUTEOPower IC MUTE terminal.Power OFF: L All OFF:“L (“H“ in 5 sec.“L“. Tel muting: “L“Hafter P-ON OFF).POWER IC ON: H 24P-STBYOPower IC STBY terminal.POWER IC OFF : LLLALL OFF: HON: Open. OFF: “L“.25MUTEOMuting terminal.Time constant: 0.48 msLOpen (“H“ in 5 sec.(with both ON/OFF)after P-ON OFF).SYSTEM MICROCOMPUTER uPD703033AGF-*-3BA (X25)KDC-8021/M9021/X8598MICROCOMPUTER'S TERMINAL DESCRIPTIONPinNameI/OPurpose Processing OperationProcessing DuringProcessing During Non-Operation STBY26SW5VI/O5V power supply terminal.ON: L OFF: Hi-ZHi-Z“L (“Hi-Z“ in 10 sec.after Power OFF).Momentary power downB-U present: “L“.27BU-DETIdetection terminal.B-U absent (momentarypower down): “H“.28ACC-DETIAcc detection terminal.Acc present: “L“.Acc absent: “H“.29N.COOutput Open. Not used.L30DIMMERISmall detection terminal.ON: L OFF: H“L for 40 ms: Bass BoostOff.31EXT-AMP-OExternal amp control“L“ for 70 ms: Bass BoostHHCONTterminal (200 ms).Low.“L“ for 100 ms: Bass Boost High.POWER ON: H32P-CONI/OPower control terminal.POWER OFF: Hi-ZHi-ZHi-ZALL OFF: Hi-ZTUNER, TI ON: H Othersources in last FM with33ANT-CONOAntenna control terminal.RDS: “H“. Other sourcesLLin last FM with RBDS,TI ON: “H“.34RESETIReset input terminal.Normal: “H“. Reset: “L“.35XT1ISub-clock connectionClock count. Workingterminal.while power is OFF.36XT2-Sub-clock connectionterminal.Output terminal for37REGC-capacitor of Reg. in uCOM.During power ON:Oscillating. During power38X2-Main clock connectionOFF and momentaryterminal.power down: Oscillationstopped.39X1IMain clock connectionterminal.40Vss-GND terminal.41Vdd-Positive power supplyterminal.42CLKOUTOInternal system clockterminal.With CD source: “L“. Other sources than CD: “Hi-Z“. Models without43CD MECHA+BI/OCD 4.7 V output terminal.MP3 or WMA: Output “L“. Hi-ZHi-ZON: 50 ms faster than M-STOP. OFF: 50 msslower.44P-ONI/OSW 14 V control terminal.POWER ON: H“H (“Hi-Z“ in 10 sec.POWER OFF: Hi-ZHi-Zafter power OFF).45O-DATAI/OExternal display DATAModels without externalterminal.display: Output “L“.LLSYSTEM MICROCOMPUTER uPD703033AGF-*-3BA (X25)KDC-8021/M9021/X8599MICROCOMPUTER'S TERMINAL DESCRIPTIONPinNameI/OPurpose Processing OperationProcessing DuringProcessing During Non-Operation STBY46O-CLKI/OExternal display CLKModels without externalterminal.display: Output “L“.LL47O-CEI/OExternal display CEModels without externalterminal.display: Output “L“.LL48ILL-ONI/OFL and ILLUM outputterminal.ON:H OFF: Hi-ZHi-ZHi-Z49TYPE0IDestination type switchingport.50TYPE1IDestination type switching port.51TYPE2IDestination type switchingport.52IC2TYPE0IIC2 destination typeterminal.Default: “L“.53IC2TYPE1IIC2 destination typeterminal.Default: “L“.54N.COOutput Open. Not used.55N.COOutput Open. Not used.56M-MUTE RIMuting request from CDmechanism. (R CH)ON:L57M-MUTE LIMuting request from CDmechanism. (L CH)ON:L58BVdd-Positive power supplyterminal.59BVss-GND terminal.Normal: “H“. Reset: “L“.60M-RSTOReset outputAccording to theto CD mechanism.mechanism controlHHspecification.61M-STOPOStop requestto CD mechanism.STOP: L CD: HLL62N.COOutput Open. Not used.L63CD-SW3ICD Down SW detectionterminal.Chucking: “H“.L64LO/EJI/OCD mechanism Loading/Stop, braking: “Hi-Z“.Ejection switching.Loading: “L“. Ejection: “H“.Hi-zHi-Z65MOSWOCD mechanism motorLoading, ejection,power supply SW.braking: “H“.LL66N.COOutput Open. Not used.LReset outputNormal: “H“. Reset &Panel attached: “H“.Panel attached: “H“.67PAN-RESETOto Panel uCOM.momentary powerPanel detached: “L“.Panel detached: “L“.down: “L“.68MC-REQ/I/OREQ terminal to PanelPANELuCOM/Panel detection.Panel attached: “L“.Hi-zHi-Z69N.COOutput Open. Not used.L70PAN5VI/OPanel 5 V control terminal.Panel attached: “L“. Panel attached: “L“.Panel detached: “Hi-Z“.Detached: “Hi-Z“.71MASK+BOMask mechanismsub-motor output terminal.L72MASK-BOMask mechanismsub-motor output terminal.L73AVCONTOAD reference voltageSame timing as P-ON.control output.During operation: “H“LLSYSTEM MICROCOMPUTER uPD703033AGF-*-3BA (X25)KDC-8021/M9021/X85910MICROCOMPUTER'S TERMINAL DESCRIPTIONPinNameI/OPurpose Processing OperationProcessing DuringProcessing During Non-Operation STBY74Avdd-Positive power supplyterminal.75Avss-GND terminal.76AvrefIA/D converter referencevoltage supply terminal.77PHONEIPhone detection terminal.TEL muting: 1 V or less.NAVI muting: 2.5 V or more.78E2PROMDETIE2PROM detectionE2PROM present: “H“.terminal.E2PROM absent: “L“.Mask mechanismRefer to the 01MASK79MASK-SW1Iposition detection.mechanism positiondetection chartMask mechanismRefer to the 01MASK80MASK-SW2Iposition detection.mechanism positiondetection chartMask mechanismRefer to the 01MASK81MASK-SW3Iposition detection.mechanism positiondetection chart82MASK-DETIMask mechanismMechanism present: “L“.detection.Mechanism absent: “H“.83NOISEIFM noise detectionterminal.84S-METERIS-meter detectionterminal.85R-DATAIRDS decoder DATAModels without RDS andinput terminal.RBDS: Connected to GND.86R-QUALIRDS decoder OUALModels without RDS andinput terminal.RBDS: Connected to GND.87IFC-OUTIF/E IFC OUT inputStation detected: 2.5 Vterminal.or more.88CH-MUTEIMuting request from CH.89CH-REQHORequest output to CH.Request: “L“.HH90R-CLKIRDS decoder CLK inputModels without RDS andterminal.RBDS: Connected to GND.91CH-REQCIRequest input from CH.Requested: “L“.92SC-REQICommunication requestfrom Panel uCOM.Loading start: “L“.93CD-SW1ILoading SW detectionTake care that the logicterminal.in power OFF is differentfrom Flip.12 cm disc detection12 cm disc: “L“. Take care94CD-SW2ISW terminal.that the logic in powerOFF is different from Flip.95N.COOutput Open. Not used.L96N.COOutput Open. Not used.L97CH-DATACIDATA input terminalfrom CH.98CH-DATAHODATA output terminalto CH.Last state held.L99CH-CLKI/OCLK input/terminalfrom/to CH.Hi-Z100SC-DATAIDATA line from Panel uCOM.Hi-ZSYSTEM MICROCOMPUTER uPD703033AGF-*-3BA (X25)