Kenwood-KDCZ-638-Service-Manual电路原理图.pdf
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1、 2002-3 PRINTED IN JAPANB51-7928-00 (N)3382CD RECEIVERKDC-719/X559/Z737,Z638SERVICE MANUALThis service manual does not include information on the CD mechanism assembly (exploded view, parts list,schematic diagram or mechanism operation description).For such information, please refer to the CD mechan
2、ism assembly service manual (X92-4450-0X: B51-7889-00).Front glass(B10-4209-01)Panel assy(A64-2646-11)KDC-719Front glass(B10-4213-01)Panel assy(A64-2650-11)KDC-X559Front glass(B10-4211-01)Panel assy(A64-2648-11)KDC-Z737Front glass(B10-4210-01)Panel assy(A64-2647-11)Z638Screw set(N99-1723-05): except
3、 Z638Screw set(N99-1656-05)Lever(D10-4674-04)x2Mountinghardware assy(J21-9823-03)Plasticcabinet assy(A02-2712-13)Remote controller assy(A70-2026-05): KDC-Z737,Z638Remote controller assy(A70-2025-05): KDC-719/X559Escutcheon(B07-3050-02): KDC-719/Z737,Z638(B07-3057-02): KDC-X559DC cord(E30-6062-05): K
4、DC-X559/Z737DC cord(E30-6106-05): KDC-719DC cord(E30-6063-05): Z638Antenna adaptor(T90-0523/0534/0552-05): Z638KDC-719/X559/Z737,Z6382BLOCK DIAGRAMCHF/EFM+BPLL+BAM+BBUFFE-VOLDECODERRDSISOAMPOEMEJECT LEDDSIDISP4.5V PREDC/DC2WAY MUTEACC DETDIMMERTEL-MUTEACCDIMMERPOWER ICPRE AMPPRE OUTSP OUTMUTEDRIVERN
5、OISEBUFFERANT-CON ANT-CONP-CON P-CONIF+BCDMECHAAUXSWOP AMPESSPEANAAGC OP AMPMUTE4.5VBU DETBACK UPEX AMP CONTEX AMP CONTNAVI MUTERESETDETPANELKEY ILLMATRIXKEYFLSWMI-COMPANELSPEANABPFREMORESETREGSWBUFFER3.3VSWSERVOAVRBOXDC/DCA8VSW14VDC/DCREGBU5VSW5VPANEL5VQ43,44Q45,46Q52IC14IC1IC2Q36 IC8,Q34IC5Q37-42I
6、C10-12IC4Q32,IC7 33,35Q15Q31Q30Q14Q111,112Q26-29Q3Q9IC3,Q4-6IC6,Q16-23Q1A1 Q10-13Q7,8Q201,473-476IC16305,306IC1IC5IC2ED1Q1,2Q7-10IC3IC4IC20IC21EEP ROMIC25Q101,P-CONANT-CONZ638 ONLYEXCEPT KDC-X559/Z737KDC-X559/Z737 ONLYZ638 ONLYQ3EXCEPT KDC-719Z638ONLYZ638 ONLYZ638EXCEPTEXCEPT KDC-X559EXCEPT KDC-X559
7、KDC-X559 ONLYKDC-X559 ONLYMI-COMSDASCLS-METERSW5VRDCKFMAMSW5VAUDIO OUTBACK UPDATA HDATA CMUTECHSDARDDABU5VBU5VDSI EJECT G EJECT R/GZ638 (E)CD/MDFMAM1512mV866mV3795mVBU5VPRE MUTEPMUTEPSTBYMUTEBEEPAUX SWCD-AUXE-VOL OUT LEVELA8VIFC OUTSW5VA8VSCLQUALAFSSERVOBU5VRchLchA8VA8VA8VREQ HRSTREQ CCH CONCLKA8VA8
8、V+B-BBACK UPBU5VBU5VMC REQSC CONFL+BREDSI2SI1CLKGREENKS1-KS4KR1-KR5F01-F06WAVEP5VMC CLKSC REQP RSTMC DATAGCPLATP5VREMOFL+BFACBKP5VA8V+B-BSERVOFACFL+B MI-COMSW5VMI-COMBU5VP5VMI-COMREMOO-DATAO-CEO-CLK1.8V PRE613mV274mV2005mV3795mV1.8V PRE896mV1695mVKDC-719 (K)4.5V PREAUXCHANGER4.5V PRE 1.8V PRE3795mV1
9、512mV866mV896mV274mV1695mV2005mV613mV3795mV1.8V PREQUALES OUT LEVEL PRE OUT LEVELM RSTSW1SW2SW4SW3LO/EJM STOPM SWMUTE RMUTE LKDC-X559 (K)KDC-Z737 (M)KDC-X559 (K)KDC-Z737 (M)Z638 (E)CHANGERFMAMCD/MDAUXKDC-719 (K)KDC-X559 (K)KDC-Z737 (M)Z638 (E)AMFMCHANGERAUXCD/MD2361mV722mV4.5V PRE4469mV848mV1.8V PRE
10、1481mV3717mV600mV1964mV3717mV1.8V PREKDC-719 (K)251mV (E,M)TYPE470mV (K)TYPE215mV1200mV1200mVKDC-719/X559/Z737,Z6383COMPONENTS DESCRIPTIONRef.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 TAR5S33 FL AVR +3.3V OutputIC2 TC74HC4050AFT Buffer For FL control lines, 5V3.3V
11、logic level shiftingIC3 RS-171 Remote sensor ICIC4 BA3830F BPF IC BPF for the spectrum analyser indicatorIC5 UPD703032GFA04 Panel MI-COM.Q1 DTA144EUA or UN5113FL+B SWFL & Illumination +B ON/OFF control. When Q2s base goes Hi, Q1 is turned on,Q2 DTC114YUA or UN5214 and FL+B (45V) line is supplied to
12、FL indicator and the key illumination circuit.Q3 DTA114EUA or UN5111 REMO SWWhen a base goes Lo, Q3 is turned on, and PAN5V line is supplied toIC3 and IC4.Q4 DTC114EUA or UN5211 FL blanking SW When a base goes Hi, Q4 is turned on, and FL indicator is lit.Q6 DTC114YK or UN2214 SRC key illumination SW
13、 When a base goes Hi, Q6 is turned on, and SRC illumination is lit.Q7 2SC4081 V-I converter Current driver for green LEDsQ8 2SC4081 V-I converter Current driver for red LEDsQ9 DTA114EUA or UN5111 Key illumination Red SW When a base goes Lo, Q9 is turned on, and key illumination Red is lit.Q10 DTA114
14、EUA or UN5111 Key illumination Green SW When a base goes Lo, Q10 is turned on, and key illumination Green is lit.ELECTRIC UNIT (X25-924x-xx)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPD703033GFA18 System MI-COM.IC2 TDA7407 E-VOL.& N.C. MPXIC3 M5237ML AVR IC IC
15、is combined with Q4, and it works as the error detection, the Q4s driver.IC4 TDA7560 Power ICIC5 TDA7401High pass filter & Non-FaderHPF (Front/Rear output), LPF, Non-Fader switching and volume functionvolumeIC6 ICL7660SIBA DC/DC converter -9V AVR for pre-output amplifierIC7 TC74HC02AF Mute logic 2-i
16、nput NOR x 4IC8 NJM4565M-TE2 Op. amp. Amplifier for the spectrum analyser and generation of Vref. (1/2Vcc) voltageIC10 NJM4565M-TE2 Op. amp. Amplifier for the front pre-outputsIC11 NJM4565M-TE2 Op. amp. Amplifier for the non-fader pre-outputsIC12 NJM4565M-TE2 Op. amp. Amplifier for the rear pre-outp
17、utsIC14 TDA7479D RDS decoderIC16 S-80837ANNP Reset IC When BU 5V voltage is less than 3.7V, IC outputs Lo.IC20 BA3121F Isolation amplifier AUX inputs isolation amplifierIC21 BA3129F Switched op.amp. Input switching with AUX inputs and CD inputsIC25 BR24C02F-W EEPROMQ1 2SD2375 CD servo AVR AVR for CD
18、 mechanism servo operation, +7.5V output.Q3 2SA1037K SW 5VWhile a base goes Lo, SW 5V is supplied to the microprocessorperipheral circuits.Q4 2SA2057 A.+8V AVR Q4 is combined with IC3, and it works as the power supply of +8.0V output.Q5 DTC144EUA or UN5213A.+8V AVR SW When Q5s base goes Hi, Q6 is tu
19、rned on, and A.+8V AVR is working.Q6 DTA124EUA or UN5112Q7 DTA124EUA or UN5112SW14VWhen Q8s base goes Hi, Q7 is turned on, and A.+8V AVR, CD servoQ8 DTC124EUA or UN5212 AVR and A+10V AVR are working.Q9 2SB1427 PAN5V SWFor PAN5V on/off switching. When a base goes Lo with panel attachedto the set, Q9
20、is turned on, and PAN5V is supplied to the panel.Q10 2SA2057FL/Illumination AVR When Q11s base goes Hi, AVR outputs +9V.Q11 2SC4081SWITCH UNIT (X16-168x-xx)KDC-719/X559/Z737,Z6384Ref.No. Component Name Application/Function Operation/Condition/CompatibilityQ12 DTC124EUA or UN5212FL/Illumination AVR S
21、W When Q12 base goes Hi, Q13 is turned on, and FL/Illumination AVR is working.Q13 DTA124EUA or UN5112Q14 DTA123JK or KRA105S EXT. AMP CON. SW When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.Q15 DTC144EUA or UN5213 Dimmer detection SW When vehicle small lamps turn on, Q15
22、s base goes Hi, and it is turned on .Q16 2SB1443A.+10V AVR When Q17s base goes Hi, AVR outputs +10V.Q17 2SC4081Q18 2SA1576AQ18 and Q20 work as a differential amplifier, Q19 works as a driver, andQ19 2SC4081 PRE-AMP -9V AVR-9.3V is supplied to OP AMP.Q20 2SA1576AQ21 2SC4081Q21and Q22 work as a differ
23、ential amplifier, Q23 works as a driver, andQ22 2SC4081 PRE-AMP +9V AVR+9.7V is supplied to OP AMP.Q23 2SA1576AQ26 2SB1277(Q,R)P-CON SWWhen Q29s base goes Hi, Q26 is turned on, and P-CON signal is outputted.Q29 DTC114YUA or UN5214 Works during POWER ON mode.Q27 2SA1576A P-CON. protection SW Protect
24、Q26 by turning ON when P-CON output is grounded.Q28 DTA124EUA or UN5112 P-CON. protection inhibit SW Prevents Q27 tuning ON during start-up after power ON.While BACKUP is applied, a base goes Hi, and Q30 is turned on.Q30 2SC4081 BU detection SW When momentary power down has detected, a base goes Lo,
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