Kenwood-KDCD-301-Service-Manual电路原理图.pdf
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1、 2001-3 PRINTED IN JAPANB51-7765-00(S) 3165SERVICE MANUALCD PLAYERKDC-D301DIGITAL OPTMUMSERVO CONTROLINTEGRATED QUAD1BIT D/AKDC-D301DPACCD PLAYER 11BANDSPECTRUM ANALYZER60 120 250 380 500 750 1k 2k 4k 8k 16kDISPMENUCONVERTERESCUTCHEON(B07-2188-02)PANEL ASSY(A64-2366-02)FRONT GLASS(B10-4055-02)KNOB(K
2、24-1923-14)PLASTIC CABINET ASSY(A02-1486-13)MOUNTING HARDWARE ASSY(J21-9491-13)SCREW SET(N99-1656-05): K TYPE ONLYSCREW SET(N99-1632-05): K TYPE ONLYSTAY(J54-0606-04): K TYPE ONLYLEVER x 2(D10-3031-04)DC CORD(E30-4730-05)CUSHION(G11-1860-05)BLOCK DIAGRAMKDC-D3012CONTENTSBLOCK DIAGRAM . 2COMPONENT DE
3、SCRIPTION . 3MICROCOMPUTERS DESCRIPTION . 5PC BOARD . 7SCHEMATIC DIAGRAM . 13EXPLODED VIEW . 19PARTS LIST. 21SPECIFICATIONS . Back coverP ONVDDAVDDBPF SELBPF ABPF BBPF CB.U.DETA MUTEBEEPSW 5VBU +5VAUDIO +BILL +BB.U.DETAUDIO MUTEBU5VSERVO+BAUD +BL CHILL +BB.U.L CH R CH R CH24.19MHzCLOCKBUZZB.P.F.4AMP
4、AGCVREFISO AMPSP INPUT413PIN22PIN 16PINSYSTEMMI-COMCH CORDQ9Q1,2Q19Q3,4Q14,15,20Q7,8Q5,6X1Q13(2/2)IC5IC6IC7BPF IN(1/2)IC64PINSERVO +Bto H.U.IC1SW 14VQ17CD MECHANISMMUTE RSTOPSW2LO/EJMUTE LRSTSW3SW1SDASCLMO SWLCD DRIVERIC1Q1ED1LCDDIMMER SWLCD AVRPAN 5V(X13- )LDATALL CEL CLK(X92- )L INHCN4CN5(X89- )CN
5、1J1J1ILL +BDISP EJECTPAN 5VPAN 5V2PAN 5V SWQ10P KEY EJECTPANELCH CONRESET SWQ16IC2RESETJ1CN1CN3CN2CH RSTDATAHDATACCH CLKREQ H REQ CCH CONCH MUTE(X25- )KDC-D3013COMPONENT DESCRIPTIONl SWITCH UNIT(X16-110X-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 LC75823W LCD
6、 driverQ1 2SC4081 Dimmer SWWhen Q1s base goes “Hi“, Dimmer LEDs are turnedon.l ELECTRIC UNIT(X25-8902-71)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPD780058GC255 System MI-COM.IC2 S-80830ANNP Reset ICWhen BU 5V voltage is less than 3.0V, IC outputs“Lo“.IC5 NJM4
7、565M-TE2 Isolation amp.IC6 NJM4565M-TE2 1/2 VCC & A.G.C.amp.IC7 BA3834F BPF ICQ1 2SC4081BU 5V AVRWhile BACKUP is applied, AVR outputs +5V.Q2 2SA1870 or 2SB1450 Q1 and Q2 are inverted Darlington connection.Q3 2SC4081Audio +B AVR While Q3s base goes “Hi“, AVR outputs +8.0V.Q4 2SB1202Q5 2SC4081Illumina
8、tion +B AVR While Q5s base goes “Hi“, AVR outputs +10.5V.Q6 2SB1202Q7 2SC4081Servo +B AVR While Q7s base goes “Hi“, AVR outputs +8.0V.Q8 2SB1202Q9 2SC4081 BU detection SWWhile BACKUP is applied, a base goes “Hi“, and Q12is turned on.When momentary power down has detected, a basegoes “Lo“, and Q12 is
9、 turned off.Q10 2SA1037K Panel 5V SWWhen a base goes “Lo“ during panel closed, Q10 isturned on.Q11 2SC4081 Guide or Eject illumination SWWhen a base goes “Hi“, Guide or Eject illuminationLED is lighting-up.Q12 DTA143EUA Changer mute SWWhen CHANGER MUTE REQUEST to H/U is worked,a base goes “Lo“ and Q
10、12 is turned on.Q13 DTC144EUA or UN5213 Buzzer SW When a base goes “Hi“, Buzzer is turned on.Q14 DTC343TK Audio mute SW(L Ch) When a base goes “Hi“, Audio mute is activated.Q15 DTC343TK Audio mute SW(R Ch) When a base goes “Hi“, Audio mute is activated.Q16 DTC144EUA or UN5213 Changer reset SWWhen CH
11、ANGER RESET from H/U is worked, a basegoes “Hi“ and Q19 is turned on.Q17 UMC2N SW 14VAudio +8V AVR, Illumination +B AVR, Servo +B AVRon/off controlWhen a base goes “Hi“, Q17 is turned on, and EachAVR are working.Q18 DTC144EUA or UN5213 BU detection inverterQ19 UMC2N SW 5VCD MECHA. SW, BPF IC on/off
12、controlWhen a base goes “Lo“, Q19 is turned on, and Eachcircuits are working.Q20 UMC2N Audio mute driverWhen a base goes “Hi“, Audio mute driver outputs“Hi“.Q21 2SD2114K AGC Signal level controlQ22 DTC144EUA or UN5213 Changer control SWWhen CHANGER CONTROL from H/U goes “Hi“,Q15 is turned on.Q23 2SA
13、1037KLED +B SWWhen Q23s base goes “Hi“, BU 5V is supplied to theQ24 DTC144EUA or UN5213 Switch Unit.KDC-D3014COMPONENT DESCRIPTIONl CD PLAYER UNIT(X32-5010-00)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 AN22000AA RF amplifierGeneration of RF signal based on the s
14、ignals fromthe APC circuit and pickup, and generation of servoerror(focusing error and tracking error)signals.Detection of dropout, anti-shock, track crossing andoff-track conditions, Gain control function building in.IC2 MN662774KG1CD signal processor bult-inMI-COM.IC4 BA5917AFP 4CH BTL driverFocus
15、ing coil, tracking coil, spindle motor and sledmotor driverIC6 NJM4565MD OP Amp. Low pass filterQ1 MCH6101 APC LD power controlQ2 DTC124EUA P ON SWWhen CD source is selected, Q2s base goes “Hi“,Q3 and Q4 are turned on.Q3 DTA143XUA A.8V SWA8V ON/OFF control. When a base goes “Lo“, Q3 isturnde on.Q4 2
16、SA1362(Y) D.5V SWD5V ON/OFF control. When a base goes “Lo“, Q4 isturnde on.Q5 DTC124EUA MOTOR SWWhen CD loading or eject operation is activating, Q5sbase goes “Hi“, Q4 is turned on.KDC-D3015MICROCOMPUTERS DESCRIPTIONIC1 (ELECTRIC UNIT: X25-8902-71)l Terminal DescriptionPin No. Pin Name I/O Descripti
17、on Processing Operation1 EJECT I Eject key input “Lo“: Eject key pressed2 REF CON O A/D converter reference voltage control output “Hi“: Reference voltage supplying3 NC O Not used(N.C.)4 AVSS - A/D, D/A converter ground connection terminal Connected to ground lines.5 NC O Not used(N.C.)6 NC O Not us
18、ed(N.C.)7 AVREF1 - D/A converter reference voltage input terminal Connected to BU 5V lines.8-10 NC O Not used(N.C.)11 DATA H I Data input from H/U12 DATA C O Data output to H/U13 CH CLK I/O Clock input/output with H/U New type: Input, Previous type: Output14 REQ C O Communication request to H/U “Lo“
19、: Communication request15 NC O Not used(N.C.)16 P KEY I Key data input from LCD driver IC17 L DATA O Data output to LCD driver IC18 L CLK O Clock output to LCD driver IC19 NC O Not used(N.C.)20 NC O Not used(N.C.)21 MSTOP O Stop request to CD mechanism MI-COM. “Lo“: Stop mode, “Hi“: Operation mode22
20、 L INH O INH output to LCD driver IC “Lo“: Display lighting-up, “Hi“: Display lighting -out23 L CE O CE output to LCD IC “Hi“: Data communication24 DIMMER O Dimmer output “Lo“: Dimmer mode, “Hi“: Except dimmer mode25 NC O Not used(N.C.)26 BPF SEL O BPF IC control output (SEL,A,B,C)=(“Lo“,X,X,X). GND
21、27 BPF A O BPF 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“) . 170Hz28 BPF B O BPF IC band control output B(SEL,A,B,C)=(“Hi“,“Lo“,“Hi“,“Hi“) . 420Hz(SEL,A,B,C)=(“Hi“,“Hi“,“Lo“,“Lo“) . 1kHz(SEL,A,B,C)=(“Hi“,“Hi
22、“,“Lo“,“Hi“) . 2.4kHz29 BPF C O BPF IC band control output C(SEL,A,B,C)=(“Hi“,“Hi“,“Hi“,“Lo“) . 5.9kHz(SEL,A,B,C)=(“Hi“,“Hi“,“Hi“,“Hi“) . 14.4kHz30,31 NC O Not used(N.C.)32 G ILLUMI O Disc indicator control output“Hi“: Indicator lighting-up, “Lo“: Indicator lighting-out33 VSS1 - Ground connection te
23、rminal Connected to ground lines.34 TYPE1 I Destination selection terminalJ type : Pull down to ground linesK,E type: Pull up to BU 5V lines35 NC O Not used(N.C.)36 SDA I/O Data input/output with CD mechanism MI-COM.37 SCL I/O Clock input/output with CD mechanism MI-COM.38 NC O Not used(N.C.)39 CH M
24、UTE O Audio mute request to H/U “Lo“: Mute request40 MUTE O Audio mute control output “Hi“: Audio mute on, “Lo“: Audio mute off41 NC O Not used(N.C.)42 PON O Peripheral circuits AVR control output“Hi“: A.+8V AVR, ILL +B AVR , SERVO +B AVRand BPF IC are turned on.43 NC O Not used(N.C.)44 BEEP O Beep
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