Kenwood-KDCC-469-Service-Manual(2) 电路图 维修手册.pdf

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1、 2002-11 PRINTED IN JAPAN B51-7994-00 (N) 3379 CD AUTO CHANGER KDC-C469/Y/FM/FMA KDC-C669/Y SERVICE MANUAL COMPACT DISC AUTO CHANGER KDC-C669 NEW ANTI VIBRATION MECHANISMDISC NAME PRESET TEXT 6DISC COMPACT DIGITAL AUDIO CD-R/RW COMPACT DISC AUTO CHANGER KDC-C469 NEW ANTI VIBRATION MECHANISMDISC NAME

2、 PRESET 6DISC COMPACT DIGITAL AUDIO CD-R/RW COMPACT DISC AUTO CHANGER KDC-C469FM NEW ANTI VIBRATION MECHANISM 6DISC COMPACT DIGITAL AUDIOCD-R/RW 1BIT 4D/A CONVERTER COMPACT DIGITAL AUDIO PWR TRACKDISC RDM REP Illustration is KDC-C469FM/FMA. Illustration is KDC-C669/Y. HOLDER ASSY (J19-5149-02) TRAY

3、(J99-0614-01) CORD WITH PLUG (E30-4291-05 or E30-4954-15) When transporting these models, always attach CAUTION CARD and STEPPED SCREW (for transportation). The MECHANISM OPERATION is the same as model KDC-C660. Please refer to the service manual of model KDC-C660 (B51-7105-00). Service jig W05-0635

4、-00 Parts No. For initial position setting BRACKET (R) (J19-5021-03) BRACKET (L) (J19-5020-03) Illustration is KDC-C469/Y. SCREW SET (N99-1645-15) REMOTO CONTROLLER ASSY (A70-2032-05) RC-504FM : KDC-C469FM/FMA (E) BATTERY (SIZE:AAA) Not supplied as service parts DISPLAY UNIT ASSY (T95-0247-08) : KDC

5、-C469FM (K) (T95-0244-08) : KDC-C469FM (E) (T95-0251-08) : KDC-C469FMA (E) CASE (A01-2819-08) : KDC-C469FM (K) (A01-2824-08) : KDC-C469FM/FMA (E) HOLDER ASSY (B07-2138-08) : KDC-C469FM/FMA ANTENNA ADAPTOR (T90-0512-05) : KDC-C469FM/FMA (E) ANTENNA ADAPTOR (T90-0521-05) : KDC-C469FM/FMA (E) MAGICTAPE

6、 ASSY (W01-0763-08) : KDC-C469FM/FMA RadioFans.CN 收音机爱 好者资料库 2 KDC-C469/Y/FM/FMA KDC-C669/Y BLOCK DIAGRAM SW5V LIM SW L.P.S. EJ SW ARM SW 12.5MHz X2 SPINDLE/LO-EJ SLED LOE SW TR COIL FO COIL BTL EEPROM &TEXT DECODER APC SA5V Q1 S8V SYSTEM u-COM IC7 IC1 RF AMP&SARVO DSP 16.93MHz X1 P-ON Q10 Q15,16 Q2

7、0 BU. DET IC8 7 13 4 5 8 2 IC5 MG SW 8V AVR S8V S-RAM 24 C 2 BU14V CH RST AUDIO OUT 5 5VREG IC4 DA5V S8V 3 HOT IC9 RESET 7V/9V 5V Q21,22 M5V1 M5V2 SW5V S3 S2 S1 SW5V M M &DC MOTOR DRIVER ELEVATOR M AVR SA5V Q9 &D/A CONVERTER &SCF MUTE 0bit Q6,7 MUTE Q4,5,8 SD5V FE A D B PD M5V2 AVR CH-MUTE CH-CON 5L

8、 I/F IC11 COMM SW S4 to HEAD UNIT ASSY(X13) (X32) (X13) (X92) PICKUP RadioFans.CN 收音机爱 好者资料库 3 KDC-C469/Y/FM/FMA KDC-C669/Y BLOCK DIAGRAM CN101 DRIVER RESET Q101,201 ACC BATT GND DETECTION ACC (+5V) AVR u-COM IC2 IC1 CN103 Q1,6 Q4,5 VDD HOLD P ONPLL 63 31 67 12-172661 29,30,60 74,77 IC1 LCD DRIVER L

9、CD1 19-22,32,66 19-22,32,66 CN101 CN1 6-43 RL1 CN105 RADIO To CN104 ANT IN Q310 MODE 1,2 CH-CONTROL Q306, RIPPLE FILTER 307 MIX PILOT STAGE RF IC301 MODULATOR FM-St. Q304,305 LEVEL CONTROL AUDIO MUTE Q309 ALC DETECTION IC302 AMP DRIVER ALC MPX EMPHASIS IC4 AVR(+5.6V) MODE 1,2 Q308 CD-CH 13P IC101 IS

10、OLATION AMP.L.P.F. 2nd. IC102 +V(AUDIO) +V(RF STAGE) SIGNAL (L/R) CN102 KEY MATRIX2,50-56 VDD IC2 REMOTE SENSER 3 1 RadioFans.CN 收音机爱 好者资料库 4 KDC-C469/Y/FM/FMA KDC-C669/Y CD PLAYER UNIT (X32-5470-0 x) Ref. No.Component NameApplication/FunctionOperation/Condition/Compatibility RF amplifier built in d

11、igital servo and data processor IC. Focusing, tracking, sled and spindle servo processing. Detection of dropout, anti-shock, track crossing and IC1UPD63711AGCServo IC off-track conditions. Automatic adjustment (focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP,

12、 PLL, sub-codes, CD-TEXT decode, CIRC error correction, audio data interpolaration) operations. IC4KIA78L05F+5V AVRAnalogue output circuit power supply for D/A converter. Focusing coil, tracking coil, spindle motor and sled motor driver. VO1VO4 and VOL outputs ON/OFF function. While MUTE1 goes “Hi”,

13、 VO1 outputs are turned on. While MUTE2 goes “Hi”, VO2VO4 and VOL outputs are turned on. VIN1 amplifier function (input selection and VREF selection) IC5LA6576Motor driver1. Input selection. While VIN SW terminal goes “Lo”, IC pin 15, 16 and 17 inputs are selected. While VIN SW terminal goes “Hi”, I

14、C pin 15, 18 and 19 inputs are selected. 2. VREF selection. While VIN SW terminal goes “Lo”, internal VREF (2.5V typical) is selected. While VIN SW terminal goes “Hi”, external VREF (IC pin 30 input) is selected. IC7UPD784214GC098Mechanism MI-COM.Mechanism and servo control. IC8BR24C02F-WEEPROMLPS d

15、ata back-up memory. IC9S-80830CNNPReset ICWhen BU 5V voltage is less than 3.0V, IC outputs “Lo”. IC11LC3564BT-70S RAMCD-TEXT data memory. Q1MCH6101APCLaser diode auto power control. Q4DTA124EK0 bit mute (L CH.)When 0 bit mute is activated, an emitter goes “Hi”, and Q4 outputs “Hi”. Q5DTA124EUA0 bit

16、mute (R CH.)When 0 bit mute is activated, an emitter goes “Hi”, and Q5 outputs “Hi”. Q6DTC343TKMute SW (L CH.) When 0 bit mute or A mute drive is activated, a base goes “Hi”, and L channel audio signal is muted. Q7DTC343TKMute SW (R CH.) When 0 bit mute or A mute drive is activated, a base goes “Hi”

17、, and R channel audio signal is muted. Q8DTA124EKA mute drive When audio mute of IC7 is activated, a base goes “Lo”, and audio mute drive signal is outputted. Q92SB1202Servo 5V AVRQ9 is combined with IC5s pin 26 and 27 , and works as a driver of AVR. Q102SB1295P-ON 5V SWWhile base goes “Lo”, P-ON 5V

18、 is supplied to the microprocessor peripheral circuits. Q11DTC124EKReset SWWhen System Reset has activated, a base goes “Hi”, and Q11 is turned on. Q13DTC124EUACH CON SWWhile CH CON or CH-CON2 mode is selected, a base goes “Hi”, and Q13 is turned on. Q14DTA143EUACH MUTE SWWhen MUTE REQUEST to H/U is

19、 outputted, a base goes “Lo”, and Q14 is turned on. Q162SC4081SRV 8V AVRQ16 is combined with Q15 (X92-), and works as a pre-driver of AVR. Q17DTA143EK SRV 8V AVR SWWhen Q18s base goes “Hi”, Q17 is turned on, and SVR 8V AVR is working. Q18DTC124EUA Q19DTC124EUA7/9V SW When a base goes “Hi”, Q19 is tu

20、rned on, and SVR 8V AVR is outputting +7V. When a base goes “Lo”, Q19 is turned off, and SVR 8V AVR is outputting +8.5V. Q20DTC124EKBU DETECTION SW While BACKUP is applied, a base goes “Hi”, and Q20 is turned on. When momentary power down has detected, a base goes “Lo”, and Q20 is turned off. Q212SB

21、1202 BU 5V AVR While BACKUP is applied, AVR outputs +5V. Q222SC4081Q21 and Q22 are inverted Darlington connection. COMPONENT DESCRIPTION 5 KDC-C469/Y/FM/FMA KDC-C669/Y Ref. No.Component NameApplication/FunctionOperation/Condition/Compatibility Q30DTC114YUAEccentric disc SW When an eccentric disc is

22、detected, Q30 is turned on, and a preceding beam is made to be delayed. Q31DTC124EUAVIN SW While spindle servo or disc loading/eject mode is selected, a base goes “Hi”, and Q31 is turned on. RF MODULATOR UNIT Ref. No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1UPC7805AHFBU

23、 5V AVRWhile BACKUP is applied, AVR outputs +5V. IC2LC72329-9B24System MI-COM.System control. IC4NJM78L05UA5V AVRPower supply for FM modulator and RF amplifier. IC101NJM2060MIsolation amp. IC102NJM4565MDLow pass filter IC301BA1405FFM ST modulator IC302NJM4565MD 1/2 VCC driver, ALC detection amp. Q1D

24、TC124EKACC detectionWhen Q4 is turned on, Q1 is turned on during ACC applied. Q22SA1782(T,U) POWER SWWhen Q3s base goes “Hi”, Q2 is turned on, and RF modulator circuit is working. Q3DTC124EK Q4DTC143TKReset SW When RESET SW on display unit is pressed, Q4, Q1 and Q6 are turned off, and IC2 is holding

25、. Q5DTC143TKCH RESET SW When RESET SW on display unit is pressed, Q5 is turned off, and SYSTEM RESET signal is outputted to CD changer. Q6DTA124EKHold detection SW When RESET SW on display unit is pressed or ACC is OFF, Q6 is turned off, and IC2 is holding. Q8DTC143TKRelay driver FM modulator output

26、 / Vehicles antenna input switching. When a base goes “Hi”, FM modulator output is selected. Q92SC4640(T,U)Ripple filterPower supply for RF amplifier Q1012SK2158 ALC control SW Q2012SK2158 Q3032SA1162(GR)Pilot mix amp. Q3042SK2158Level control SWLevel 1/2 : OFF, Level 3/4 : ON Q3052SK2158Level contr

27、ol SWLevel 2/4 : OFF, Level 1/3 : ON Q3062SK508LRF oscillator buffer Q3072SC2714(Y)RF amp. Q3082SK2158Mode (1/2) SWMode 1 : ON, Mode 2 : OFF Q3092SK2158Audio mutePOWER ON mode : OFF, POWER OFF mode : ON Q3102SK2158Mode (1/2) SWMode 1 : OFF, Mode 2 : ON DISPLAY UNIT Ref. No.Component NameApplication/

28、FunctionOperation/Condition/Compatibility IC1LC75852WLCD driver with key-matrix IC2PNA4602MRemote control light senser Q1DTC144EK LED ON/OFF SWWhen Q1s base goes “Hi”, Q2 is turned on, and LED is turned on. Q2DTB123YK Q3DTA144EKKey-matrix permition SWReady on key-matrix Q4DTC144EK IC2 ON/OFF SW When

29、 Q4s base goes “Hi”, Q5 is turned on, and 5V is supplied to remote control Q5DTA144EKsensor. COMPONENT DESCRIPTION 6 KDC-C469/Y/FM/FMA KDC-C669/Y Mechanism Microcomputer : UPD784214GC098 (X32- : IC7) Pin No.Pin NameI/ODescriptionProcessing Operation 1NOR/RWOCD-DA/CD-RW SwitchingNot used (N.C.) 2TSTB

30、OCD-TEXT parameter strobe 3P-CONOP-CON outputNot used (N.C.) 4FOKIFocus OK input“Hi” : Focus OK 5XTALENOServo IC oscillation stop control“Hi” : Oscillation stop 6RSTOServo IC reset terminal“Lo” : Reset 7SAOOServo IC command/parameter setting terminal“Hi” : Parameter setting, “Lo” : Address resister

31、setting 8SSTBOServo IC command/parameter setting strobe terminal“Hi”“Lo” : Serial data latch 9VDD-Positive power supply connection terminalConnected to D 5V lines 10X2-Main clock resonator connection terminal 2 11X1IMain clock resonator connection terminal 1 12VSS-Ground connection terminalConnected

32、 to GND lines 13XT2-Sub clock resonator connection terminal 2Not used (N.C.) 14XT1ISub clock resonator connection terminal 1Not used (connected to GND lines) 15RESETISystem reset input“Lo” : System reset 16FOGUPIVibration detect input“Hi” : Vibration detect 17MGSWIMagazine switch input“Hi” : Magazin

33、e in 18EJSWIEject switch input“Hi” : Eject switch ON 19COMMSWI5-line communication old/new switch input“Hi” : New communication, “Lo” : Old communication 20PACKIText data pack synchronous signal input“Hi”“Lo” : The head of the pack data 21CH-CONIChanger control input“Hi” : Standby mode, “Lo” : Opera

34、tion mode 22BUDETIMomentary power down detection input “Hi” : When momentary power down detected or BU OFF “Lo” : BU ON 23AVDD-A/D converter positive power supply connection terminalConnected to D 5V lines 24AVREF0IA/D converter reference voltage inputConnected to PON 5V lines 25HOTIRise in temperat

35、ure detection input 26LPSILPS Mechanical deck position detection input 27LOESWILoading complete switch input“Lo” : Loading complete 28LIMSWILimit switch input“Lo” : Pickup most inner position 29TOFFITracking OFF mode terminalNot used (pull down to GND lines) 30ADJSELIServo automatic adjustment ON/OF

36、F terminalNot used (pull down to GND lines) 31TBANKITracking gain switching mode terminalNot used (pull down to GND lines) 32SIM2IDestination input 2Not used (pull down to GND lines) 33AVSS-A/D, D/A converter ground connection terminalConnected to GND lines 34LPSCOOLPS A/D converter reference power

37、control outputNot used (N.C.) 35AMUTEOAudio mute output“Lo” : Audio mute ON 36AVREF1ID/A converter reference voltage inputConnected to D 5V lines 37SDIIServo IC communication serial data input 38SDOOServo IC communication serial data output 39SCKOServo IC communication serial clock output 40DATAHIDa

38、ta input from H/U 41DATACOData output from the changer 42HCLKI/OCommunication clock input/output with H/U 43RECQCOCommunication request to H/U“Lo” : Communication requested 44CHMUTEO Audio mute request to H/U“Lo” : Audio mute requested MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-C469/Y/FM/FMA KDC-C669

39、/Y Pin No.Pin NameI/ODescriptionProcessing Operation 45TSIIText data input from servo IC 46TSOOText data output to servo IC 47TSCKOText data clock to servo IC 4855A0A7OAddress setting terminal for S RAM 5663D0D7I/OData input/output terminal with S RAM 6468A8A12OAddress setting terminal for S RAM 697

40、1A13A15OChip enable setting terminal for S RAMNot used (pull down to GND lines) 72VSS-Ground connection terminalConnected to GND lines 73A16OChip enable setting terminal for S RAMNot used (pull down to GND lines) 74A17OChip enable setting terminal for S RAM 75RAMOKOPickup check judging terminal for

41、productionNot used (N.C.) 76ELVADJIMechanism deck ascent/descent position terminalNot used (pull up to D 5V lines) 77RDORead-out to S RAM control output 78WROWrite to S RAM control output 79WAITIWaiting time insertion input when accessing S RAMNot used (pull down to GND lines) 80ASTBOChip selection

42、to S RAMNot used (N.C.) 81VDD-Positive power supply connection terminalConnected to D 5V lines 82PUSELIPickup type select terminalPull up to D 5V lines 83REQHICommunication request from H/U“Lo” : Communication requested 84SPLO+OSpindle/Loading control terminal 85SPLO-OSpindle/Loading control termina

43、l 86ELV+OMechanism deck ascent/descent terminal 87ELV-OMechanism deck ascent/descent terminal 88SIM1IDestination input 1“Lo” : adapted for CD-TEXT, “Hi” : not adapted for CD-TEXT 89SEARCHOSearch mode outputNot used (N.C.) 90TEST1ITest mode terminal 1 for test modeNot used (pull down to GND lines) 91

44、TEST2ITest mode terminal 2 for test modeNot used (pull down to GND lines) 928/7VOMotor driver IC power voltage control output“Hi” : 7V, “Lo” : 8.5V 93EEPWRIEEPROM write mode terminal for productionNot used (pull down to GND lines) 94TEST/VPPIFlash ROM program mode terminalNot used (connected to GND

45、lines) 95SRVSELIServo active mode terminal (no mechanism movement)Not used (pull down to GND lines) 96SLNSAISled non-sensitive area ON/OFF terminalNot used (pull down to GND lines) 97SDAI/OData input/output with EEPROM 98SCLOClock output to EEPROM 99PONOPON output“Lo” : AVR & LPS POWER ON 100ARMSWIA

46、rm switch input“Hi” : Arm switch ON System Microcomputer : LC72329-9B24 (RF Modulator Unit : IC2) Pin No.Pin NameI/ODescriptionProcessing Operation 1XINIMain clock resonator connection terminal 2TEST2ITest mode terminal 2 for test modeNot used (pull down to GND lines) 3, 4PG3, PG2INot used (pull dow

47、n to GND lines) 5PG1INot used (pull up to +5V lines) 6PG0INot used (pull down to GND lines) 79PH3PH1ONot used (pull down to GND lines) 10PH0 MUTE1ONot used (N.C.) MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-C469/Y/FM/FMA KDC-C669/Y Pin No.Pin NameI/ODescriptionProcessing Operation 11PF3 MUTE0ONot used

48、 (N.C.) 12PF2 REQCICommunication request input form CH“Lo” : Communication requested 13PF1 REQHOCommunication request output to CH“Lo” : Communication requested 14PF0 CHCONOControl output to CH“Hi” : Operation mode, “Lo” : Standby mode 15PE3 DATA INIData input from CH 16PE2 DATA OUTOData output to C

49、H 17PE1 SCKOClock output to CH 18PE0ONot used (N.C.) 19PD3 DATA OUTOData output to LCD 20PD2 CLKOClock output to LCD 21PD1 RSTOReset output to LCD“Lo” : Reset 22PD0 CEOCE output to LCD 2325PC3PC1Not used (N.C.) 26PC0 SEPAOSeparation select output“Hi” : Mode 1, “Lo” : Mode 2 27, 28PB3, PB2ONot used (N.C.) 29PB1 GAIN1OGAIN1 output“Hi” : Level 1/3, “Lo” : Level 2/4 30PB0 GAIN2OGAIN2 output“Hi” : Level 3/4, “Lo” : Level 1/2 31VDD +5V-Positive power supply connection terminalConnected to +5V lines. 32PA3 DATA INIData input from LCD 3335PA2PA0INot used (connected to GND lines) 36PI31