Kenwood-KDCCX-87-Service-Manual电路原理图.pdf
© 2001-1 PRINTED IN JAPANB51-7730-00 (N) 3387CD AUTO CHANGERKDC-CX87/CPS87SERVICE MANUALCOMPACT DISC AUTO CHANGER KDC-CX87D.R.I.V.E.NEW ANTI VIBRATION MECHANISMDYNAMIC RESOLUTION INTENSIVE VECTOR ENHANCEMENTDISC NAME PRESETTEXT10 DISCCOMPACTDIGITAL AUDIOCD-R/RWCOMPACT DISC AUTOD.R.I.V.E.NEW ANTI VIBRATION MECHANISMDYNAMIC RESOLUTION INTENSIVE VECTOR ENHANCEMENTDISC NAME PRESETTEXT10 DISCCOMPACTDIGITAL AUDIOCD-R/RWCHANGER KDC-CPS87Illustration is KDC-CX87.Illustration is KDC-CPS87.BRACKET x 2(J19-4712-23)SCREW SET(N99-1645-15): KDC-CX87, CPS87(E)SCREW SET(N99-1628-15): KDC-CPS87(M)MOUNTINGHARDWARE ASSY x 2(J21-9588-04): KDC-CPS87(M)HOLDER ASSY(J19-5074-02)BLIND PLATE(F19-1303-04)TRAY(J99-0612-01)ADHESIVE TAPE x 2(J69-0506-04): KDC-CPS87(M)CORD WITH PLUG(E30-4291-05or E30-4954-05)The MECHANISM OPERATION is the same as model KDC-C710.Please refer to the service manual of model KDC-C710 (B51-7104-00).Service jig Parts No.For initial position setting W05-0635-00When transporting these models, always attach CAUTION CARD and STEPPED SCREW (for transportation)KDC-CX87/CPS872BLOCK DIAGRAMSW5VXOFFLIM SWL.P.S.EJ SWARM SW12.5MHzX2SPINDLE/LO-EJSLEDLOE SWTR COILFO COILBTLEEPROM&TEXT DECODERAPCSA5VQ1S8VSYSTEM u-COMIC7IC1RF AMP&SARVO DSP16.93MHzX1P-ONQ10Q15,16Q20BU. DETIC87134582IC5MG SW8V AVRS8VCOMM SWS-RAM24CIC10DACDIGITAL FILTERD.R.I.V.E.4L.P.FIC3X14.19MHzAUX SWI/F u-COMIC2RST6Q7BU.BU14VCH MUTECH RSTREQC0CHCONDATAH0DATAC0REQH0HCLK0AUDIOOUTBU14VCH RST2CH MUTE2HCLK2REQC2DATAC2REQH2CHCONO2DATAH26AUDIO INAUX to AUXCH2H.U5RELAYK1,3K2,4RELAYDETtoto5VREGIC4DA5VS8V3333S1IC1Q9,10AVR5V+5VS4HOTIC9RST7V/9V5VQ21,22M5V1M5V2SW5VS3S2S1+5VSW5VMM&DC MOTORDRIVERELEVATORMAVRSA5VQ9&D/A CONVERTER&SCFAUDIO VREFIC2MUTE0bitQ6,7MUTEQ4,5,8SD5VFEADBPDM5V2AVRIC112ASSY (X13)(X32)(X13)(X92)PICKUPCN101DRIVERRESETQ101,201ACCBATTGNDDETECTIONACC(+5V)AVRu-COMIC2IC1CN103 Q1,6Q4,5VDDHOLDP ON PLL63316712-17 26 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.2nd.IC102+V(AUDIO)+V(RF STAGE)SIGNAL(L/R)CN102KEY MATRIX 2,50-56VDDIC2REMOTESENSER31KDC-CX87/CPS873IC1 UPD78058GCB82T System MI-COM. CH1/CH2/AUX controlIC2 PST9137NR Reset IC When BU 5V voltage is less than 3.7V, IC outputs “Lo“.Q1 DTC124EUAWhile CD-CH1's outputs are selected, Q1's base goes “Lo“, and Q3 is Relay drive turned off.Q3 DTB123YK(CH1/CH2 switching) While CD-CH2's outputs are selected, Q1's base goes “Hi“, and Q3 is turned on.Q2 DTC124EUARelay drive While CD-CH's outputs are selected, Q2's base goes “Lo“, and Q4 is (CH/AUX switching)turned off.Q4 DTB123YKWhile AUX inputs are selected, Q2's base goes “Hi“, and Q4 is turned on.Q5 2SC4081 CH CON2 SW While CH CON2 mode is selcted, a base goes “Hi“, and Q5 is turned on. Q6 2SC4081 CH CON SWWhile CH CON or CH CON2 mode is selcted, a base goes “Hi“, and Q6 is turned on.While BACKUP is applied, a base goes “Hi“, and Q7 is turned on. Q7 DTC124EUA BU DETECTION SW When momentary power down has detected, a base goes “Lo“, and Q7 is turned off.Q8 DTC124EUA Reset SW When System Reset has activated, a base goes “Hi“, and Q8 is turned on.Q9 2SB1202BU 5V AVRWhile BACKUP is applied, AVR outputs +5V.Q10 2SC4081 Q9 and Q10 are inverted Darlington connectiona71CD PLAYER UNIT (X32-5160-00)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityRF amplifier built in digital servo and data processor IC. Focusing, tracking,sled and spindle servo processing. Detection of dropout, anti-shock, track IC1 UPD63711AGC Servo ICcrossing and off-track conditions.Automatic adjustment (focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes, CD-TEXT decode, CIRC error correction, audio data interpolaration) operations.IC2 NJM4580MD VREF amp. Operational reference voltage for low pass filterIC3 NJM5532MD Low pass filter Differential amplifierIC4 KIA78L05F +5V AVR Analogue output circuit power supply for D/A converterFocusing coil, tracking coil, spindle motor and sled motor driver.VO1-VO4 and VOL outputs ON/OFF functionWhile MUTE1 goes “Hi“, VO1 outputs are turned on.While MUTE2 goes “Hi“, VO2-VO4 and VOL outputs are turned on.VIN1 amplifier function (input selection and VREF selection)IC5 LA6576 Motor driver 1. Input selectionWhile 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 selectionWhile 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.a71SUB-CIRCUIT UNIT (X13-9930-00)COMPONENT DESCRIPTIONRef.No. Component Name Application/Function Operation/Condition/CompatibilityKDC-CX87/CPS874COMPONENTS DESCRIPTIONRef.No. Component Name Application/Function Operation/Condition/CompatibilityIC7 UPD784214GC091 Mechanism MI-COM. Mechanism and servo controlBR24C02F-W or CAT24WC02JI IC8 or M24C02WMN6T EEPROM LPS data back-up memoryor S-24C02BFJA or 24LC02BT-ISNIC9 S-80830ANNP Reset IC When BU 5V voltage is less than 3.0V, IC outputs “Lo“.IC10 KKZ05F D.R.I.V.E. IC D.R.I.V.E. system ICIC11 LC3564BT-70 S RAM CD-TEXT data memoryQ1 MCH6101 APC Laser diode auto power controlQ4 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 goes “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 audio signal 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 audio signal is muted.Q8 DTA124EK A mute driveWhen audio mute of IC7 is activated, a base goes “Lo“, and audio mute drive signal is outputted.Q9 2SB1202 Servo 5V AVR Q9 is combined with IC5's pin 26 and 27 , and works as a driver of AVR.Q10 2SB1295 P-ON 5V SWWhile base goes “Lo“, P-ON 5V is supplied to the microprocessor peripheral circuits.Q11 DTC124EK Reset SW When System Reset has activated, a base goes “Hi“, and Q11 is turned on.Q12 DTC124EUA XTALEN SW While D.R.I.V.E. IC is operating, a base goes “Lo“, and Q12 is turned off.Q13 DTC124EUA CH CON SWWhile CH CON or CH-CON2 mode is selected, a base goes “Hi“, and Q13 is turned on. Q14 DTA143EUA CH MUTE SWWhen MUTE REQUEST to H/U is outputted, a base goes “Lo“, and Q14 is turned on.Q16 2SC4081 SRV 8V AVR Q16 is combined with Q15 (X92-), and works as a pre-driver of AVR.Q17 DTA143EKSRV 8V AVR SWWhen Q18's base goes “Hi“, Q17 is turned on, and SVR 8V AVR is Q18 DTC124EUA working.Q19 DTC124EUA 7/9V SWWhen a base goes “Hi“, Q19 is turned 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.While BACKUP is applied, a base goes “Hi“, and Q20 is turned on. Q20 DTC124EK BU DETECTION SW When momentary power down has detected, a base goes “Lo“, and Q20 is turned off.Q21 2SB1202BU 5V AVRWhile BACKUP is applied, AVR outputs +5V.Q22 2SC4081 Q21 and Q22 are inverted Darlington connection.Q30 DTC114YUA Eccentric disc SWWhen an eccentric disc is detected, Q30 is turned on, and a preceding beam is made to be delayed.Q31 DTC124EUA VIN SWWhile spindle servo or disc loading/eject mode is selected, a base goes “Hi“, and Q31 is turned on.KDC-CX87/CPS875MICROCOMPUTER'S TERMINAL DESCRIPTIONPin No. Pin Name I/O Description Processing Operation1 - 3 O Not used(N.C.)4 AVSS - A/D, D/A converter ground connection terminal5 O Not used(N.C.)6 REQH1 O Communication request output to CH1 “Lo“ : Communication requested7 AVREF1 I D/A converter reference voltage input8 DATAC1 I Data input from CH19 DATAH1 O Data output to CH110 HCLK1 I/O Communication clock input/output with CH111 DATAH0 I Data input from H/U12 DATAC0 O Data output to H/U13 HCLK0 I/O Communication clock input/output with H/U14 REQC0 O Communication request output to H/U “Lo“ : Communication requested15 REQH2 O Communication request output to CH2 “Lo“ : Communication requested16 DATAC2 I Data input from CH217 DATAH2 O Data output to CH218 HCLK2 I/O communication clock input/output with CH219 CHCON01 O Control output to CH1 “Hi“ : CH1 operation mode20 CHCON02 O Control output to CH2 “Hi“ : CH2 operation mode21 RELAY1 O Relay1 Control output “Hi“ : AUX inputs, “Lo“ : Changer outputs22 RELAY2 O Relay2 Control output “Hi“ : CH2 outputs, “Lo“ : CH1 outputs23-32 O Not used(N.C.)33 VSS - Ground connection terminal Connected to GND lines.34-59 O Not used(N.C.)60 RESET I System reset “Lo“ : System reset61 REQC2 I Communication request input from CH2 “Lo“ : Communication requested62 BUDET I Momentary power down detection input“Hi“ : When momentary power down detected or BU OFF“Lo“ : BU ON63 AUX SW I AUX SW input “Hi“ : Auxiliary input mode64 REQH0 I Communication request input form H/U “Lo“ : Communication requested65 REQC1 I Communication request input form CH1 “Lo“ : Communication requested66 CHCON1 I Changer control mode input from H/U “Lo“ : CH1 mode67 COMMSW I 5-line communication old/new switch input “Hi“ : New communication, “Lo“ : Old communication68 VDD - Positive power supply connection terminal Connected to BU 5V lines.69 X2 - Main clock resonator connection terminal 270 X1 I Main clock resonator connection terminal 171 IC - IC Internal connection terminal Connected to GND lines.72 O Not used(N.C.)73 CHCON2 I Changer control mode input from H/U “Lo“ : CH2 mode74 AVDD - A/D converter positive power supply connection terminal Connected to BU 5V lines.75 AVREF0 I A/D converter reference voltage input Connected to BU 5V lines.76 O Not used(N.C.)77 AUX TYPE O Not used(pull down to GND lines.)78-80 O Not used(N.C.)a71IC1 (SUB-CIRCUIT UNIT: X13-9930-00)KDC-CX87/CPS876MICROCOMPUTER'S TERMINAL DESCRIPTIONPin 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 strobe3 P-CON O P-CON output Not used(N.C.)4 FOK I Focus OK input “Hi“ : Focus OK5 XTALEN O Servo IC oscillation stop control “Hi“ : Oscillation stop6 RST O Servo IC reset terminal “Lo“ : Reset7 SAO O Servo IC command/parameter setting terminal “Hi“ : Parameter setting, “Lo“ : Address resister setting8 SSTB O Servo IC command/parameter setting strobe terminal “Hi“Lo“ : Serial data latch9 VDD - Positive power supply connection terminal Connected to D 5V lines.10 X2 - Main clock resonator connection terminal 211 X1 I Main clock resonator connection terminal 112 VSS - Ground connection terminal Connected to GND lines.13 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 input “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“ : Standby mode, “Lo“ : Operation mode22 BUDET I Momentary power down detection input“Hi“ : When momentary power down detected or BU OFF“Lo“ : BU ON23 AVDD - A/D converter positive power supply connection terminal Connected to D 5V lines.24 AVREF0 I A/D converter reference voltage input Connected to PON 5V lines.25 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 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 Connected to GND lines.34 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 lines.37 SDI I Servo IC communication serial data input38 SDO O Servo IC communication serial 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/Ua71IC7 (CD PLAYER UNIT : X32-5160-00)KDC-CX87/CPS877MICROCOMPUTER'S TERMINAL DESCRIPTIONPin No. Pin Name I/O Description Processing Operation43 RECQC O Communication request to H/U “Lo“ : Communication requested44 CHMUTE O Audio mute request to H/U “Lo“ : Audio mute requested45 TSI I Text data input from servo IC46 TSO O Text data output to servo IC47 TSCK O Text data clock to servo IC48-55 A0-A7 O Address setting terminal for S RAM56-63 D0-D7 I/O Data input/output terminal with S RAM64-68 A8-A12 O Address setting terminal for S RAM69-71 A13-A15 O Chip enable setting terminal for S RAM Not used(pull down to GND lines.)72 VSS - Ground connection terminal Connected to GND lines.73 A16 O Chip enable setting terminal for S RAM Not used(pull 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 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 lines.82 PUSEL I Pickup type select terminal Not used(pull up to D 5V lines.)83 REQH I Communication request from H/U “Lo“ : Communication requested84 SPLO+ O Spindle/Loading control terminal85 SPLO- O Spindle/Loading control terminal 86 ELV+ O Mechanism deck ascent/descent terminal 87 ELV- O Mechanism deck ascent/descent terminal88 SIM1 I Destination input 1“Hi“ : adapted for CD-TEXT“Lo“ : 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“ : 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 ON/OFF terminal Not used(pull down to GND lines.)97 S
