Kenwood-KDCC-469-Service-Manual电路原理图.pdf

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1、 2002-11 PRINTED IN JAPANB51-7994-00 (N)3379CD AUTO CHANGERKDC-C469/Y/FM/FMAKDC-C669/YSERVICE MANUALCOMPACT DISC AUTO CHANGER KDC-C669NEW ANTI VIBRATION MECHANISM DISC NAME PRESETTEXT 6DISCCOMPACTDIGITAL AUDIO CD-R/RWCOMPACT DISC AUTO CHANGER KDC-C469NEW ANTI VIBRATION MECHANISM DISC NAME PRESET6 DI

2、SCCOMPACTDIGITAL AUDIO CD-R/RWCOMPACT DISC AUTO CHANGER KDC-C469FMNEW ANTI VIBRATION MECHANISM6 DISCCOMPACTDIGITAL AUDIO CD-R/RW1BIT 4D/A CONVERTERCOMPACTDIGITAL AUDIOPWRTRACK DISCRDMREPIllustration isKDC-C469FM/FMA.Illustration isKDC-C669/Y.HOLDER ASSY(J19-5149-02)TRAY(J99-0614-01)CORD WITH PLUG(E3

3、0-4291-05or 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 jigW05-0635-00Parts No.For initial position setti

4、ngBRACKET (R)(J19-5021-03)BRACKET (L)(J19-5020-03)Illustration isKDC-C469/Y.SCREW SET(N99-1645-15)REMOTOCONTROLLER ASSY(A70-2032-05)RC-504FM: KDC-C469FM/FMA (E)BATTERY (SIZE:AAA)Not supplied asservice partsDISPLAY UNIT ASSY(T95-0247-08): KDC-C469FM (K)(T95-0244-08): KDC-C469FM (E)(T95-0251-08): KDC-

5、C469FMA (E)CASE(A01-2819-08): KDC-C469FM (K)(A01-2824-08): KDC-C469FM/FMA (E)HOLDER ASSY(B07-2138-08): KDC-C469FM/FMAANTENNAADAPTOR(T90-0512-05): KDC-C469FM/FMA (E)ANTENNAADAPTOR(T90-0521-05): KDC-C469FM/FMA (E)MAGICTAPE ASSY(W01-0763-08): KDC-C469FM/FMA2KDC-C469/Y/FM/FMAKDC-C669/YBLOCK DIAGRAMSW5VL

6、IM SWL.P.S.EJ SWARM SW12.5MHzX2SPINDLE/LO-EJSLEDLOE SWTR COILFO COILBTLEEPROM&TEXT DECODERAPCSA5VQ1S8VSYSTEM u-COMIC7IC1RF AMP&SARVO DSP16.93MHzX1P-ONQ10Q15,16Q20BU. DETIC87134582IC5MG SW8V AVRS8VS-RAM24C2BU14VCH RSTAUDIOOUT55VREGIC4DA5VS8V3HOTIC9RESET7V/9V5VQ21,22M5V1M5V2SW5VS3S2S1SW5VMM&DC MOTORDR

7、IVERELEVATORMAVRSA5VQ9&D/A CONVERTER&SCFMUTE0bitQ6,7MUTEQ4,5,8SD5VFEADBPDM5V2AVRCH-MUTECH-CON5L I/FIC11COMM SWS4toHEADUNITASSY (X13)(X32)(X13)(X92)PICKUP3KDC-C469/Y/FM/FMAKDC-C669/YBLOCK DIAGRAMCN101DRIVERRESETQ101,201ACCBATTGNDDETECTIONACC(+5V)AVRu-COMIC2IC1CN103Q1,6Q4,5VDDHOLDP ON PLL63316712-17 2

8、6 6129,30,6074,77IC1LCD DRIVERLCD119-22,32,6619-22,32,66CN16-43RL1CN105RADIOToCN104ANT INQ310MODE 1,2CH-CONTROLQ306,RIPPLEFILTER307MIXPILOTSTAGERFIC301MODULATORFM-St.Q304,305LEVEL CONTROLAUDIO MUTEQ309ALCDETECTIONIC302AMPDRIVERALCMPXEMPHASISIC4AVR(+5.6V)MODE 1,2Q308CD-CH13PIC101ISOLATIONAMP. L.P.F.2

9、nd.IC102+V(AUDIO)+V(RF STAGE)SIGNAL(L/R)CN102KEY MATRIX 2,50-56VDDIC2REMOTESENSER314KDC-C469/Y/FM/FMAKDC-C669/Y CD PLAYER UNIT (X32-5470-0x)Ref. No. Component Name Application/Function Operation/Condition/CompatibilityRF amplifier built in digital servo and data processor IC. Focusing, tracking, sle

10、dand spindle servo processing. Detection of dropout, anti-shock, track crossing andIC1 UPD63711AGC Servo ICoff-track conditions.Automatic adjustment (focusing, tracking, gain, offset and balance) operations.Digital signal processing (DSP, PLL, sub-codes, CD-TEXT decode, CIRC errorcorrection, audio d

11、ata interpolaration) operations.IC4 KIA78L05F +5V AVR Analogue 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”, VO1 outputs are turned on.While MUTE2 goes “Hi”, VO2VO4 and VOL

12、 outputs are turned on.VIN1 amplifier function (input selection and VREF selection)IC5 LA6576 Motor driver 1. Input selection.While VIN SW terminal goes “Lo”, IC pin 15, 16 and 17 inputs are selected.While VIN SW terminal goes “Hi”, IC pin 15, 18 and 19 inputs are selected.2. VREF selection.While VI

13、N 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.IC7 UPD784214GC098 Mechanism MI-COM. Mechanism and servo control.IC8 BR24C02F-W EEPROM LPS data back-up memory.IC9 S-80830CNNP Reset IC When BU 5V voltage is

14、 less than 3.0V, IC outputs “Lo”.IC11 LC3564BT-70 S RAM CD-TEXT data memory.Q1 MCH6101 APC Laser diode auto power control.Q4 DTA124EK 0 bit mute (L CH.) When 0 bit mute is activated, an emitter goes “Hi”, and Q4 outputs “Hi”.Q5 DTA124EUA 0 bit mute (R CH.) When 0 bit mute is activated, an emitter go

15、es “Hi”, and Q5 outputs “Hi”.Q6 DTC343TK Mute SW (L CH.)When 0 bit mute or A mute drive is activated, a base goes “Hi”, and L channel audiosignal is muted.Q7 DTC343TK Mute SW (R CH.)When 0 bit mute or A mute drive is activated, a base goes “Hi”, and R channel audiosignal is muted.Q8 DTA124EK A mute

16、driveWhen audio mute of IC7 is activated, a base goes “Lo”, and audio mute drive signalis outputted.Q9 2SB1202 Servo 5V AVR Q9 is combined with IC5s pin 26 and 27 , and works as a driver of AVR.Q10 2SB1295 P-ON 5V SW While base goes “Lo”, P-ON 5V is supplied to the microprocessor peripheral circuits

17、.Q11 DTC124EK Reset SW When System Reset has activated, a base goes “Hi”, and Q11 is turned on.Q13 DTC124EUA CH CON SW While CH CON or CH-CON2 mode is selected, a base goes “Hi”, and Q13 is turned on.Q14 DTA143EUA CH MUTE SW When MUTE REQUEST to H/U is outputted, a base goes “Lo”, and Q14 is turned

18、on.Q16 2SC4081 SRV 8V AVR Q16 is combined with Q15 (X92-), and works as a pre-driver of AVR.Q17 DTA143EKSRV 8V AVR SW When Q18s base goes “Hi”, Q17 is turned on, and SVR 8V AVR is working.Q18 DTC124EUAQ19 DTC124EUA 7/9V SWWhen a base goes “Hi”, Q19 is turned on, and SVR 8V AVR is outputting +7V.When

19、 a base goes “Lo”, Q19 is turned off, and SVR 8V AVR is outputting +8.5V.Q20 DTC124EK BU DETECTION SWWhile 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.Q21 2SB1202BU 5V AVRWhile BACKUP is applied, AVR output

20、s +5V.Q22 2SC4081 Q21 and Q22 are inverted Darlington connection.COMPONENT DESCRIPTION5KDC-C469/Y/FM/FMAKDC-C669/YRef. No. Component Name Application/Function Operation/Condition/CompatibilityQ30 DTC114YUA Eccentric disc SWWhen an eccentric disc is detected, Q30 is turned on, and a preceding beam is

21、made to be delayed.Q31 DTC124EUA VIN SWWhile spindle servo or disc loading/eject mode is selected, a base goes “Hi”, andQ31 is turned on. RF MODULATOR UNITRef. No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPC7805AHF BU 5V AVR While BACKUP is applied, AVR outputs +5V.I

22、C2 LC72329-9B24 System MI-COM. System control.IC4 NJM78L05UA 5V AVR Power supply for FM modulator and RF amplifier.IC101 NJM2060M Isolation amp.IC102 NJM4565MD Low pass filterIC301 BA1405F FM ST modulatorIC302 NJM4565MD1/2 VCC driver,ALC detection amp.Q1 DTC124EK ACC detection When Q4 is turned on,

23、Q1 is turned on during ACC applied.Q2 2SA1782(T,U)POWER SW When Q3s base goes “Hi”, Q2 is turned on, and RF modulator circuit is working.Q3 DTC124EKQ4 DTC143TK Reset SWWhen RESET SW on display unit is pressed, Q4, Q1 and Q6 are turned off, andIC2 is holding.Q5 DTC143TK CH RESET SWWhen RESET SW on di

24、splay unit is pressed, Q5 is turned off, and SYSTEMRESET signal is outputted to CD changer.Q6 DTA124EK Hold detection SWWhen RESET SW on display unit is pressed or ACC is OFF, Q6 is turned off, andIC2 is holding.Q8 DTC143TK Relay driverFM modulator output / Vehicles antenna input switching.When a ba

25、se goes “Hi”, FM modulator output is selected.Q9 2SC4640(T,U) Ripple filter Power supply for RF amplifierQ101 2SK2158ALC control SWQ201 2SK2158Q303 2SA1162(GR) Pilot mix amp.Q304 2SK2158 Level control SW Level 1/2 : OFF, Level 3/4 : ONQ305 2SK2158 Level control SW Level 2/4 : OFF, Level 1/3 : ONQ306

26、 2SK508L RF oscillator bufferQ307 2SC2714(Y) RF amp.Q308 2SK2158 Mode (1/2) SW Mode 1 : ON, Mode 2 : OFFQ309 2SK2158 Audio mute POWER ON mode : OFF, POWER OFF mode : ONQ310 2SK2158 Mode (1/2) SW Mode 1 : OFF, Mode 2 : ON DISPLAY UNITRef. No. Component Name Application/Function Operation/Condition/Co

27、mpatibilityIC1 LC75852W LCD driver with key-matrixIC2 PNA4602M Remote control light senserQ1 DTC144EKLED ON/OFF SW When Q1s base goes “Hi”, Q2 is turned on, and LED is turned on.Q2 DTB123YKQ3 DTA144EK Key-matrix permition SW Ready on key-matrixQ4 DTC144EKIC2 ON/OFF SWWhen Q4s base goes “Hi”, Q5 is t

28、urned on, and 5V is supplied to remote controlQ5 DTA144EK sensor.COMPONENT DESCRIPTION6KDC-C469/Y/FM/FMAKDC-C669/Y Mechanism Microcomputer : UPD784214GC098 (X32- : IC7)Pin No. Pin Name I/O Description Processing Operation1 NOR/RW O CD-DA/CD-RW Switching Not used (N.C.)2 TSTB O CD-TEXT parameter stro

29、be3 P-CON O P-CON output Not used (N.C.)4 FOK I Focus OK input “Hi” : Focus OK5XTALEN O Servo IC oscillation stop control “Hi” : Oscillation stop6 RST O Servo IC reset terminal “Lo” : Reset7SAO O Servo IC command/parameter setting terminal “Hi” : Parameter setting, “Lo” : Address resister setting8 S

30、STB O Servo IC command/parameter setting strobe terminal “Hi”“Lo” : Serial data latch9 VDD - Positive power supply connection terminal Connected to D 5V lines10 X2 - Main clock resonator connection terminal 211 X1 I Main clock resonator connection terminal 112 VSS - Ground connection terminal Connec

31、ted to GND lines13 XT2 - Sub clock resonator connection terminal 2 Not used (N.C.)14 XT1 I Sub clock resonator connection terminal 1 Not used (connected to GND lines)15 RESET I System reset input “Lo” : System reset16 FOGUP I Vibration detect input “Hi” : Vibration detect17 MGSW I Magazine switch in

32、put “Hi” : Magazine in18 EJSW I Eject switch input “Hi” : Eject switch ON19 COMMSW I 5-line communication old/new switch input “Hi” : New communication, “Lo” : Old communication20 PACK I Text data pack synchronous signal input “Hi”“Lo” : The head of the pack data21 CH-CON I Changer control input “Hi

33、” : Standby mode, “Lo” : Operation mode22 BUDET I Momentary power down detection input“Hi” : When momentary power down detected orBU OFF “Lo” : BU ON23 AVDD - A/D converter positive power supply connection terminal Connected to D 5V lines24 AVREF0 I A/D converter reference voltage input Connected to

34、 PON 5V lines25 HOT I Rise in temperature detection input26 LPS I LPS Mechanical deck position detection input27 LOESW I Loading complete switch input “Lo” : Loading complete28 LIMSW I Limit switch input “Lo” : Pickup most inner position29 TOFF I Tracking OFF mode terminal Not used (pull down to GND

35、 lines)30 ADJSEL I Servo automatic adjustment ON/OFF terminal Not used (pull down to GND lines)31 TBANK I Tracking gain switching mode terminal Not used (pull down to GND lines)32 SIM2 I Destination input 2 Not used (pull down to GND lines)33 AVSS - A/D, D/A converter ground connection terminal Conn

36、ected to GND lines34 LPSCO O LPS A/D converter reference power control output Not used (N.C.)35 AMUTE O Audio mute output “Lo” : Audio mute ON36 AVREF1 I D/A converter reference voltage input Connected to D 5V lines37 SDI I Servo IC communication serial data input38 SDO O Servo IC communication seri

37、al data output39 SCK O Servo IC communication serial clock output40 DATAH I Data input from H/U41 DATAC O Data output from the changer42 HCLK I/O Communication clock input/output with H/U43 RECQC O Communication request to H/U “Lo” : Communication requested44 CHMUTE O Audio mute request to H/U “Lo”

38、: Audio mute requestedMICROCOMPUTERS TERMINAL DESCRIPTION7KDC-C469/Y/FM/FMAKDC-C669/YPin No. Pin Name I/O Description Processing Operation45 TSI I Text data input from servo IC46 TSO O Text data output to servo IC47 TSCK O Text data clock to servo IC4855 A0A7 O Address setting terminal for S RAM5663

39、 D0D7 I/O Data input/output terminal with S RAM6468 A8A12 O Address setting terminal for S RAM6971 A13A15 O Chip enable setting terminal for S RAM Not used (pull down to GND lines)72 VSS - Ground connection terminal Connected to GND lines73 A16 O Chip enable setting terminal for S RAM Not used (pull

40、 down to GND lines)74 A17 O Chip enable setting terminal for S RAM75 RAMOK O Pickup check judging terminal for production Not used (N.C.)76 ELVADJ I Mechanism deck ascent/descent position terminal Not used (pull up to D 5V lines)77 RD O Read-out to S RAM control output78 WR O Write to S RAM control

41、output79 WAIT I Waiting time insertion input when accessing S RAM Not used (pull down to GND lines)80 ASTB O Chip selection to S RAM Not used (N.C.)81 VDD - Positive power supply connection terminal Connected to D 5V lines82 PUSEL I Pickup type select terminal Pull up to D 5V lines83 REQH I Communic

42、ation request from H/U “Lo” : Communication requested84 SPLO+ O Spindle/Loading control terminal85 SPLO- O Spindle/Loading control terminal86 ELV+ O Mechanism deck ascent/descent terminal87 ELV- O Mechanism deck ascent/descent terminal88 SIM1 I Destination input 1 “Lo” : adapted for CD-TEXT, “Hi” :

43、not adapted for CD-TEXT89 SEARCH O Search mode output Not used (N.C.)90 TEST1 I Test mode terminal 1 for test mode Not used (pull down to GND lines)91 TEST2 I Test mode terminal 2 for test mode Not used (pull down to GND lines)92 8/7V O Motor driver IC power voltage control output “Hi” : 7V, “Lo” :

44、8.5V93 EEPWR I EEPROM write mode terminal for production Not used (pull down to GND lines)94 TEST/VPP I Flash ROM program mode terminal Not used (connected to GND lines)95 SRVSEL I Servo active mode terminal (no mechanism movement) Not used (pull down to GND lines)96 SLNSA I Sled non-sensitive area

45、ON/OFF terminal Not used (pull down to GND lines)97 SDA I/O Data input/output with EEPROM98 SCL O Clock output to EEPROM99 PON O PON output “Lo” : AVR & LPS POWER ON100 ARMSW I Arm switch input “Hi” : Arm switch ON System Microcomputer : LC72329-9B24 (RF Modulator Unit : IC2)Pin No. Pin Name I/O Des

46、cription Processing Operation1 XIN I Main clock resonator connection terminal2 TEST2 I Test mode terminal 2 for test mode Not used (pull down to GND lines)3, 4 PG3, PG2 I Not used (pull down to GND lines)5 PG1 I Not used (pull up to +5V lines)6 PG0 I Not used (pull down to GND lines)79 PH3PH1 O Not

47、used (pull down to GND lines)10 PH0 MUTE1 O Not used (N.C.)MICROCOMPUTERS TERMINAL DESCRIPTION8KDC-C469/Y/FM/FMAKDC-C669/YPin No. Pin Name I/O Description Processing Operation11 PF3 MUTE0 O Not used (N.C.)12 PF2 REQC I Communication request input form CH “Lo” : Communication requested13 PF1 REQH O C

48、ommunication request output to CH “Lo” : Communication requested14 PF0 CHCON O Control output to CH “Hi” : Operation mode, “Lo” : Standby mode15 PE3 DATA IN I Data input from CH16 PE2 DATA OUT O Data output to CH17 PE1 SCK O Clock output to CH18 PE0 O Not used (N.C.)19 PD3 DATA OUT O Data output to

49、LCD20 PD2 CLK O Clock output to LCD21 PD1 RST O Reset output to LCD “Lo” : Reset22 PD0 CE O CE output to LCD2325 PC3PC1 Not used (N.C.)26 PC0 SEPA O Separation select output “Hi” : Mode 1, “Lo” : Mode 227, 28 PB3, PB2 O Not used (N.C.)29 PB1 GAIN1 O GAIN1 output “Hi” : Level 1/3, “Lo” : Level 2/430 PB0 GAIN2 O GAIN2 output “Hi” : Level 3/4, “Lo” : Level 1/231 VDD +5V - Positive power supply connection terminal Connected to +5V lines.32 PA3 DATA IN I Data input from LCD3335 PA2PA0 I Not used (connected to GND lines)36 PI31 S28 O Not used (N.C.)37 PI21 S2