Kenwood-C-929-Service-Manual(1) 电路图 维修手册.pdf
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1、CD CHANGER C929 SERVICE MANUAL 2001-4 PRINTED IN KOREA B51-7796-00 (K) 3095 The following reference numbers with accessory parts are the same reference numbers used on EXPLODED VIEW and PARTS LIST. Refer to the service manual KDC-C710 (B51-7104-00) for MECHANISM OPERATION DESCRIPTION. 223 215 227x10
2、 217 216 230 229 221 225 222 224x2 226x2 RadioFans.CN 收音机爱 好者资料库 C929 2 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&SERVO DSP P-ON Q10 Q15,16 Q20 BU. DET IC8 7 13 4 5 8 2 IC5 M
3、G SW 8V AVR S8V S-RAM 24 C BU14V CH RST AUDIO OUT 3 HOT IC9 RST 7V/9V 5V Q21,22 M5V D5V SW5V S3 S2 S1 SW5V M M &DC MOTOR DRIVER ELEVATOR M AVR SA5V Q9 &D/A CONVERTER &SCF SD5V FE A D B PD D5V AVR BUS I/F IC11 to HEAD UNIT D.R.I.V.E. DAC DIGITAL FILTER IC10 4 16.93MHz X1 5VREG IC4 AUDIO VREF IC2 DA5V
4、 IC3 L.P.F S8V 0bit MUTE Q4,5 MUTE Q6-8 RELAY K1,2 Q23,24 AUDIO 3 NO SW S4 BUS DRIVER IC14 6.29MHz X3 72 CH-MUTE Q14 CH MUTE SYS-ON Q13 SYS ON Q2 DOUT to OPTICAL OUT D-OUT Q25 DG-CONDG-CON Q1 D5V ASSY(X13- ) (X32- ) C929 (X16- )(X92- ) PICKUP XOFF RadioFans.CN 收音机爱 好者资料库 C929 3 COMPONENT DESCRIPTION
5、 REF. No. FUNCTIONOPERATION IC1 RE amplifier, Focus/Tracking error amplifier, APC circuit, Reference RF ERROR AMPLIFIER / SERVOamplifier, Defect RFOK mirror circuit, EFM comparator, Vibration DIGITAL SIGNAL PROCESSORdetector, Digital servo data processor, Digital loop filter, 8 times over sampling f
6、ilter, D/A converter. IC2VOLTAGE FOLLOWERAudio reference voltage supply. IC3ACTIVE FILTER2nd low pass filter. IC4AVRAudio 5V power supply. IC5MOTOR DRIVERFocus tracking actuator, Sled/Spindle MD deck up/down motor driver. IC7SYSTEM -COMServo control / Mechanism control / Multiple purposes interface.
7、 IC8MEMORYMechanism up/down position offset servo initial data memory. IC9-COM RESET.Resets u-com. IC10DRIVERDAC. IC11TEXT DATA MEMORYMemorises data from text decoder through u-com. IC14IE-BUS DRIVERBus driver. Q1LASER CONTROLLERON when IC13s APC goes on. Q4Q1 DRIVER0 bit mute goes on when H level s
8、ignal 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. 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
9、 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 from the head unit. Q12CLOCK ON/OFFClock goes off when H level signal is output from XOFF port of IC7. Q13SYSTEM-ON S
10、WWorks during the ACC and power on. Q14CH-MUTE SW Audio mute output level goes on when H level signal is output from AUDIO port of IC7. Q15SW +8 AVR Q16Q15 DRIVERDrives Q15. Q17AVR 8V SWSwitches AVR 8V power supply. Q18Q11 DRIVERDrives Q11. Q19AVR 7V/8V SWH (7V) : Usual play mode. L (8V) : Elevator
11、up/down. Q20B.U. VOLTAGE DOWN DETECTION SW Q21B.U. +5V AVR Q22Q21 DRIVERDrives Q21. Q23Q24 DRIVERAudio turns on when H level signal is output from AUDIO port of IC7. Q24RELAY SW Q25Q1 (on X16-) DRIVER Digital-out turns on when H level signal is output from DGCON port of IC7. Q31MOTOR DRIVER REFERENC
12、E VOLTAGE SW Q32SUB BEAM F SIGNAL TIME CONSTANT SW H when time constant takes effect. SUB-CIRCUIT UNIT (X16-1030-00) REF. No. FUNCTIONOPERATION Q1D-OUT (TRANSISTOR VCC SW) Q2D-OUT (TRANSMITTER DRIVER) CD PLAYER UNIT (X32-4970-00) RadioFans.CN 收音机爱 好者资料库 PORT No. PORT NAMEI/OFUNCTIONOPERATING CONDITI
13、ON 1- 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 IC communication address setting. 8SSTBOServo IC communi
14、cation strove. 9VDD-VDD 10X2-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 request signal. 20PACKIText data - Pack synchr
15、onization 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, releases the detection when the voltage go
16、es 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 : Automatic adjustment off. 31TEST1IFor
17、 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 communication serial data. 39
18、S-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 to S-RAM.
19、50A2OAddress setting to S-RAM. 51A3OAddress setting to S-RAM. 52A4OAddress setting to S-RAM. (X32-) IC7 : -COM C929 4 MICROCOMPUTERS TERMINAL DESCRIPTION 5 C929 MICROCOMPUTERS TERMINAL DESCRIPTION PORT No. PORT NAMEI/OFUNCTIONOPERATING CONDITION 53A5OAddress setting to S-RAM. 54A6OAddress setting to
20、 S-RAM. 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
21、setting to S-RAM. 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 cont
22、rol to S-RAM. 75DG-CONODigital-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.
23、 H : Made by KENWOOD. L : Made by 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. 89
24、SEARCHOSearch play SW.L : Searching. 90SLNSAOSled 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 sele
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