Kenwood-KDCD-301-Service-Manual(2) 电路图 维修手册.pdf
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1、 2001-3 PRINTED IN JAPAN B51-7765-00(S) 3165 SERVICE MANUAL CD PLAYER KDC-D301 DIGITAL OPTMUM SERVO CONTROL INTEGRATED QUAD 1BIT D/A KDC-D301 DPAC CD PLAYER 11BAND SPECTRUM ANALYZER601202503805007501k2k4k8k16k DISP MENU CONVERTER ESCUTCHEON (B07-2188-02) PANEL ASSY (A64-2366-02) FRONT GLASS (B10-405
2、5-02) KNOB (K24-1923-14) PLASTIC CABINET ASSY (A02-1486-13) MOUNTING HARDWARE ASSY (J21-9491-13) SCREW SET (N99-1656-05) : K TYPE ONLY SCREW SET (N99-1632-05) : K TYPE ONLY STAY (J54-0606-04) : K TYPE ONLY LEVER x 2 (D10-3031-04) DC CORD (E30-4730-05) CUSHION (G11-1860-05) RadioFans.CN 收音机爱 好者资料库 BL
3、OCK DIAGRAM KDC-D301 2 CONTENTS BLOCK DIAGRAM . 2 COMPONENT DESCRIPTION . 3 MICROCOMPUTERS DESCRIPTION. 5 PC BOARD . 7 SCHEMATIC DIAGRAM . 13 EXPLODED VIEW . 19 PARTS LIST. 21 SPECIFICATIONS .Back cover P ON VDD AVDD BPF SEL BPF A BPF B BPF C B.U.DET A MUTE BEEP SW 5V BU +5V AUDIO +B ILL +B B.U. DET
4、 AUDIO MUTE BU 5V SERVO +B AUD +B L CH ILL +B B.U. L CH R CH R CH 2 4.19MHz CLOCK BUZZ B.P.F. 4 AMP AGC VREF ISO AMP SP INPUT 4 13PIN 22PIN16PIN SYSTEM MI-COM CH CORD Q9 Q1,2 Q19 Q3,4 Q14,15,20 Q7,8 Q5,6 X1 Q13 (2/2) IC5 IC6 IC7 BPF IN (1/2) IC6 4PIN SERVO +B to H.U. IC1 SW 14V Q17 CD MECHANISM MUTE
5、 R STOP SW2 LO/EJ MUTE L RST SW3 SW1 SDA SCL MO SW LCD DRIVER IC1 Q1 ED1 LCD DIMMER SW LCD AVR PAN 5V (X13- ) L DATAL L CE L CLK (X92- ) L INH CN4 CN5 (X89- ) CN1 J1 J1 ILL +B DISP EJECT PAN 5V PAN 5V 2 PAN 5V SW Q10 P KEY EJECT PANEL CH CON RESET SW Q16 IC2 RESET J1 CN1 CN3 CN2 CH RST DATA H DATA C
6、 CH CLK REQ H REQ C CH CON CH MUTE (X25- ) RadioFans.CN 收音机爱 好者资料库 KDC-D301 3 COMPONENT DESCRIPTION G SWITCH UNIT(X16-110X-XX) Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1LC75823WLCD driver Q12SC4081Dimmer SW When Q1s base goes Hi, Dimmer LEDs are turned on. G ELECT
7、RIC UNIT(X25-8902-71) Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1UPD780058GC255System MI-COM. IC2S-80830ANNPReset IC When BU 5V voltage is less than 3.0V, IC outputs Lo. IC5NJM4565M-TE2Isolation amp. IC6NJM4565M-TE21/2 VCC & A.G.C.amp. IC7BA3834FBPF IC Q12SC4081 BU
8、 5V AVR While BACKUP is applied, AVR outputs +5V. Q22SA1870 or 2SB1450Q1 and Q2 are inverted Darlington connection. Q32SC4081 Audio +B AVRWhile Q3s base goes Hi, AVR outputs +8.0V. Q42SB1202 Q52SC4081 Illumination +B AVRWhile Q5s base goes Hi, AVR outputs +10.5V. Q62SB1202 Q72SC4081 Servo +B AVRWhil
9、e Q7s base goes Hi, AVR outputs +8.0V. Q82SB1202 Q92SC4081BU detection SW While BACKUP is applied, a base goes Hi, and Q12 is turned on. When momentary power down has detected, a base goes Lo, and Q12 is turned off. Q102SA1037KPanel 5V SW When a base goes Lo during panel closed, Q10 is turned on. Q1
10、12SC4081Guide or Eject illumination SW When a base goes Hi, Guide or Eject illumination LED is lighting-up. Q12DTA143EUAChanger mute SW When CHANGER MUTE REQUEST to H/U is worked, a base goes Lo and Q12 is turned on. Q13DTC144EUA or UN5213Buzzer SWWhen a base goes Hi, Buzzer is turned on. Q14DTC343T
11、KAudio mute SW(L Ch)When a base goes Hi, Audio mute is activated. Q15DTC343TKAudio mute SW(R Ch)When a base goes Hi, Audio mute is activated. Q16DTC144EUA or UN5213Changer reset SW When CHANGER RESET from H/U is worked, a base goes Hi and Q19 is turned on. Q17UMC2NSW 14V Audio +8V AVR, Illumination
12、+B AVR, Servo +B AVR on/off control When a base goes Hi, Q17 is turned on, and Each AVR are working. Q18DTC144EUA or UN5213BU detection inverter Q19UMC2NSW 5V CD MECHA. SW, BPF IC on/off control When a base goes Lo, Q19 is turned on, and Each circuits are working. Q20UMC2NAudio mute driver When a ba
13、se goes Hi, Audio mute driver outputs Hi. Q212SD2114KAGCSignal level control Q22DTC144EUA or UN5213Changer control SW When CHANGER CONTROL from H/U goes Hi, Q15 is turned on. Q232SA1037K LED +B SW When Q23s base goes Hi, BU 5V is supplied to the Q24DTC144EUA or UN5213Switch Unit. RadioFans.CN 收音机爱 好
14、者资料库 KDC-D301 4 COMPONENT DESCRIPTION G CD PLAYER UNIT(X32-5010-00) Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1AN22000AARF amplifier Generation of RF signal based on the signals from the APC circuit and pickup, and generation of servo error(focusing error and track
15、ing error)signals. Detection of dropout, anti-shock, track crossing and off-track conditions, Gain control function building in. IC2MN662774KG1 CD signal processor bult-in MI-COM. IC4BA5917AFP4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver IC6NJM4565MDOP Amp.Low pass
16、 filter Q1MCH6101APCLD power control Q2DTC124EUAP ON SW When CD source is selected, Q2s base goes Hi, Q3 and Q4 are turned on. Q3DTA143XUAA.8V SW A8V ON/OFF control. When a base goes Lo, Q3 is turnde on. Q42SA1362(Y)D.5V SW D5V ON/OFF control. When a base goes Lo, Q4 is turnde on. Q5 DTC124EUAMOTOR
17、SW When CD loading or eject operation is activating, Q5s base goes Hi, Q4 is turned on. KDC-D301 5 MICROCOMPUTERS DESCRIPTION IC1 (ELECTRIC UNIT: X25-8902-71) G Terminal Description Pin No.Pin NameI/ODescriptionProcessing Operation 1EJECTIEject key inputLo: Eject key pressed 2REF CONOA/D converter r
18、eference voltage control outputHi: Reference voltage supplying 3NCONot used(N.C.) 4AVSS-A/D, D/A converter ground connection terminalConnected to ground lines. 5NCONot used(N.C.) 6NCONot used(N.C.) 7AVREF1-D/A converter reference voltage input terminalConnected to BU 5V lines. 8-10NCONot used(N.C.)
19、11DATA HIData input from H/U 12DATA COData output to H/U 13CH CLKI/OClock input/output with H/UNew type: Input, Previous type: Output 14REQ COCommunication request to H/ULo: Communication request 15NCONot used(N.C.) 16P KEYIKey data input from LCD driver IC 17L DATAOData output to LCD driver IC 18L
20、CLKOClock output to LCD driver IC 19NCONot used(N.C.) 20NCONot used(N.C.) 21MSTOPOStop request to CD mechanism MI-COM.Lo: Stop mode, Hi: Operation mode 22L INHOINH output to LCD driver ICLo: Display lighting-up, Hi: Display lighting -out 23L CEOCE output to LCD ICHi: Data communication 24DIMMERODimm
21、er outputLo: Dimmer mode, Hi: Except dimmer mode 25NCONot used(N.C.) 26BPF SELOBPF IC control output(SEL,A,B,C)=(Lo,X,X,X).GND 27BPF AOBPF IC band control output A (SEL,A,B,C)=(Hi,Lo,Lo,Lo).GND (SEL,A,B,C)=(Hi,Lo,Lo,Hi) .68Hz (SEL,A,B,C)=(Hi,Lo,Hi,Lo) .170Hz 28BPF BOBPF IC band control output B (SEL
22、,A,B,C)=(Hi,Lo,Hi,Hi) .420Hz (SEL,A,B,C)=(Hi,Hi,Lo,Lo) .1kHz (SEL,A,B,C)=(Hi,Hi,Lo,Hi) .2.4kHz 29BPF COBPF IC band control output C (SEL,A,B,C)=(Hi,Hi,Hi,Lo) .5.9kHz (SEL,A,B,C)=(Hi,Hi,Hi,Hi) .14.4kHz 30,31 NCONot used(N.C.) 32G ILLUMIODisc indicator control output Hi: Indicator lighting-up, Lo: Ind
23、icator lighting- out 33VSS1-Ground connection terminalConnected to ground lines. 34TYPE1IDestination selection terminal J type : Pull down to ground lines K,E type: Pull up to BU 5V lines 35NCONot used(N.C.) 36SDAI/OData input/output with CD mechanism MI-COM. 37SCLI/OClock input/output with CD mecha
24、nism MI-COM. 38NCONot used(N.C.) 39CH MUTEOAudio mute request to H/ULo: Mute request 40MUTEOAudio mute control outputHi: Audio mute on, Lo: Audio mute off 41NCONot used(N.C.) 42PONOPeripheral circuits AVR control output Hi: A.+8V AVR, ILL +B AVR , SERVO +B AVR and BPF IC are turned on. 43NCONot used
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