Kenwood-C929-cd-sch 维修电路原理图.pdf
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1、CD CHANGERC929SERVICE MANUAL 2001-4 PRINTED IN KOREAB51-7796-00 (K) 3095 The following reference numbers with accessory parts are the same reference numbersused on EXPLODED VIEW and PARTS LIST. Refer to the service manual KDC-C710 (B51-7104-00) for MECHANISM OPERATION DESCRIPTION.223215227x102172162
2、30229221225222224x2226x2RadioFans.CN 收音机爱 好者资料库C9292BLOCK DIAGRAMSW5VLIM SWL.P.S.EJ SWARM SW12.5MHzX2SPINDLE/LO-EJSLEDLOE SWTR COILFO COILBTLEEPROM&TEXT DECODERAPCSA5VQ1S8VSYSTEM u-COMIC7IC1RF AMP&SERVO DSPP-ONQ10Q15,16Q20BU. DETIC87134582IC5MG SW8V AVRS8VS-RAM24CBU14VCH RSTAUDIOOUT3HOTIC9RST7V/9V5V
3、Q21,22M5VD5VSW5VS3S2S1SW5VMM&DC MOTORDRIVERELEVATORMAVRSA5VQ9&D/A CONVERTER&SCFSD5VFEADBPDD5VAVRBUS I/FIC11toHEADUNITD.R.I.V.E.DACDIGITAL FILTERIC10416.93MHzX15VREGIC4AUDIO VREFIC2DA5VIC3L.P.FS8V0bit MUTEQ4,5MUTEQ6-8RELAYK1,2Q23,24AUDIO3NO SWS4BUS DRIVERIC146.29MHzX372CH-MUTEQ14CH MUTESYS-ONQ13SYS O
4、NQ2DOUTto OPTICAL OUTD-OUTQ25DG-CONDG-CONQ1D5VASSY(X13- )(X32- )C929(X16- )(X92- )PICKUPXOFFRadioFans.CN 收音机爱 好者资料库C9293COMPONENT DESCRIPTIONREF.No.FUNCTIONOPERATIONIC1RE amplifier, Focus/Tracking error amplifier, APC circuit, ReferenceRF ERROR AMPLIFIER / SERVOamplifier, Defect RFOK mirror circuit,
5、 EFM comparator, VibrationDIGITAL SIGNAL PROCESSORdetector, Digital servo data processor, Digital loop filter, 8 times over sampling filter, D/A converter.IC2VOLTAGE FOLLOWERAudio reference voltage supply.IC3ACTIVE FILTER2nd low pass filter.IC4AVRAudio 5V power supply.IC5MOTOR DRIVERFocus tracking a
6、ctuator, Sled/Spindle MD deck up/down motor driver.IC7SYSTEM -COMServo control / Mechanism control / Multiple purposes interface.IC8MEMORYMechanism up/down position offset servo initial data memory.IC9-COM RESET.Resets u-com.IC10DRIVERDAC.IC11TEXT DATA MEMORYMemorises data from text decoder through
7、u-com.IC14IE-BUS DRIVERBus driver.Q1LASER CONTROLLERON when IC13s APC goes on.Q4Q1 DRIVER0 bit mute goes on when H level signal is putout from LZ port of IC6.Q5Q2 DRIVER0 bit mute goes on when H level signal is putout from RZ port of IC6.Q6,7AUDIO MUTEMute goes on when L level signal output from A.
8、MUTE port of IC7.Q8Q1&2 DRIVERMute goes on when L level signal is output from A. MUTE Port of IC7.Q9CD SYSTEM 5V POWER SUPPLYTransistor with regulator inside the IC12.Q10P.ON SWSW5V turns on when L level signal is output from P.ON port of IC7.Q11RESET SWResets u-com by H level reset control signal f
9、rom the head unit.Q12CLOCK ON/OFFClock goes off when H level signal is output from XOFF port of IC7.Q13SYSTEM-ON SWWorks during the ACC and power on.Q14CH-MUTE SWAudio mute output level goes on when H level signal is output from AUDIO port of IC7.Q15SW +8 AVRQ16Q15 DRIVERDrives Q15.Q17AVR 8V SWSwitc
10、hes AVR 8V power supply.Q18Q11 DRIVERDrives Q11.Q19AVR 7V/8V SWH (7V) : Usual play mode. L (8V) : Elevator up/down.Q20B.U. VOLTAGE DOWN DETECTION SWQ21B.U. +5V AVRQ22Q21 DRIVERDrives Q21.Q23Q24 DRIVERAudio turns on when H level signal is output from AUDIO port of IC7.Q24RELAY SWQ25Q1 (on X16-) DRIVE
11、RDigital-out turns on when H level signal is output from DGCON port of IC7.Q31MOTOR DRIVER REFERENCE VOLTAGE SWQ32SUB BEAM F SIGNAL TIME CONSTANT SWH when time constant takes effect.SUB-CIRCUIT UNIT (X16-1030-00)REF.No.FUNCTIONOPERATIONQ1D-OUT (TRANSISTOR VCC SW)Q2D-OUT (TRANSMITTER DRIVER)CD PLAYER
12、 UNIT (X32-4970-00)PORTNo.PORT NAMEI/OFUNCTIONOPERATING CONDITION1-2TSTBOText data strove.3T-BANKITracking filter bank SW signal.H : Bank 1 (Gain-up mode).4F-OKIFocus-on signal.H : Focus on.5XTALENODAC servo IC oscillation stop control.H : Oscillation stop.6RESETOServo IC reset.L : Reset.7SAOOServo
13、IC communication address setting.8SSTBOServo IC communication strove.9VDD-VDD10X2-Main clock 2.11X1IMain clock 1.12VSS-GND.13-14XT1-Sub clock 1.15RESETIReset.16FO-GUPIFocus gain-up SW.H : Focus gain up.17MG-SWIMagazine SW.H: Magazine inserted.18EJ-SWIEject SW.H : Switch on.19B-REQ-HICommunication re
14、quest signal.20PACKIText data - Pack synchronization signal.21SYS-ONIChanger control from head unit.L : System on.22BU-DETIBack-up momentary power-down detection.H : Momentary power down.23AVDD-VDD.24A VREF 0IInner A/D converter reference voltage.25HOTITemperature-up detection.Detects over 4V, relea
15、ses the detectionwhen the voltage goes to be under 4V.26LPSIMechanism deck height detection.27LO-E-SWILoading end SW.L : Loading ends.28LIM-SWILimit switch.L : Laser pick-up being most inside detection.29T-OFFITracking-off mode.H : Tracking off.30ADJ-SELIServo automatic adjustment on/off.H : Automat
16、ic adjustment off.31TEST1IFor mechanism endurance test.32TEST2IFor mechanism endurance test.33AVSS-GND.34AUDIOOAudio relay control out.H : Changer source.35A-MUTEOAudio mute.L : Mute on.36A VREF 1-Inner A/D converter reference voltage.37S-DIIServo IC communication serial data.38S-DOOServo IC communi
17、cation serial data.39S-CKOServo IC communication serial clock.40B-DICIBus serial.41B-DCOMOBus serial.42B-CLKOBus serial clock.43B-C/DOBus command data SW.44CH-MUTEOAudio mute to head unit.L : Mute on.45TSIIText data.46TSOOText data.47TSCKOText clock.48A0OAddress setting to S-RAM.49A1OAddress setting
18、 to S-RAM.50A2OAddress setting to S-RAM.51A3OAddress setting to S-RAM.52A4OAddress setting to S-RAM.(X32-) IC7 : -COMC9294MICROCOMPUTERS TERMINAL DESCRIPTION5C929MICROCOMPUTERS TERMINAL DESCRIPTIONPORTNo.PORT NAMEI/OFUNCTIONOPERATING CONDITION53A5OAddress setting to S-RAM.54A6OAddress setting to S-R
19、AM.55A7OAddress setting to S-RAM.56D0I/OData from and to S-RAM.57D1I/OData from and to S-RAM.58D2I/OData from and to S-RAM.59D3I/OData from and to S-RAM.60D4I/OData from and to S-RAM.61D5I/OData from and to S-RAM.62D6I/OData from and to S-RAM.63D7I/OData from and to S-RAM.64A8OAddress setting to S-R
20、AM.65A9OAddress setting to S-RAM.66A10OAddress setting to S-RAM.67A11OAddress setting to S-RAM.68A12OAddress setting to S-RAM.69A13OAddress setting to S-RAM.70A14OAddress setting to S-RAM.71A15OAddress setting to S-RAM.72VSS-GND.73A16OEnable control to S-RAM.74A17OEnable control to S-RAM.75DG-CONODi
21、gital-out control.H : Digital out.76ELV-ADJIMechanism deck height adjustment mode.L : Adjustment mode.77RDOReading control to S-RAM.78WROReading control to S-RAM.79WAITIWAIT insertion from S-RAM during accessing.80-81VDD-VDD.82PU-SELILaser pick-up type discrimination.H : Made by KENWOOD.L : Made by
22、others.83PU-OKILaser pick-up type discrimination.H : The laser pick-up is OK.84SP/LO +OSpindle/Loading control.85SP/LO -OSpindle/Loading control.86ELV+OMechanism up/down control.87ELV-OMechanism up/down control.88SRV-SELIServo operating mode.H : Servo mode.89SEARCHOSearch play SW.L : Searching.90SLN
23、SAOSled non-felt area on/off.L : Sled non-felt area on.91EEP-WROEEP-ROM writing mode.H : EEP-ROM writing mode.927V/8VOMechanism driving IC power supply control.93NO-SWIBus number SW.H : CH1. L : CH2.94TEST/VPP-Flash ROM program mode.95B-CSOBus chip selector.96B-RSTOBus reset.97SDAI/OEEP-ROM data.98S
24、CLOEEP-ROM clock.99P-ONOP-ON.L : AVR power on.100ARM-SWIArm SW.H : Arm SW on.(X32-) IC7 : -COMC9296PARTS DESCRIPTIONS7ACEBD2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)S2S111LIMSWLOESW8/12SWMGNDSP-SL-SL+SP+BLACKRED1816CN1CN2X13-9850-00
25、 (J74-0987-01)R1R3C2C1R2B EB EQ2Q111221516348765910111213J1X16-1030-00 (J74-0630-12)CN1J2SUB-CIRCUIT UNIT(X16-)Ref.No.AddressQ15DQ25DSUB-CIRCUIT UNITFGIHJ2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)8Q9Q19D14D5D17D18D1Q23IC8Q10Q14Q13Q1
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