Kenwood-KDCZ-727-Service-Manual(1)电路原理图.pdf

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1、 2001-5 PRINTED IN JAPANB51-7791-00 (N) 1737CD.MD-CH CONTROL CD RECEIVERKDC-Z727Z727SERVICE MANUALSRCPWROFF47Wx4S.AFMAMDISCCD MD-CH CONTROL CD RECEIVER EXKDC-Z727AUD4.5VPREOUTLOUDDISP SCAN RDM REP M.RDM AUTO AME MENUNAME.SNFCOMPACTDIGITAL AUDIO2ZONEDABTEXTDPACDPACSRCPWROFF47Wx4S.AFMAMDISCCD MD-CH CO

2、NTROL CD RECEIVER AUDLOUDDISP SCAN RDM REP M.RDM AUTO AME MENUNAME.SNFCOMPACTDIGITAL AUDIO2ZONEDABTEXTSIZE AAA BATTERY(Not supplied)Plastic cabinet assy(A02-2711-08)Panel assy(A64-2473-08)Front glass assy(B10-4204-08)Escutcheon(B07-3038-08)Panel assy(A64-2625-08)Front glass assy(B10-4203-08)Escutche

3、on(B07-3048-08)Remote controller assy(A70-0894-05)Mounting hardware assy(J21-9585-18)DC cord assy(E30-6021-08)Lever(D10-4364-08)x2Stay(J54-0606-04)Screw set(N99-1700-05)Screw set(N99-1716-08)KDC-Z727Z727RC-520KDC-Z727,Z7272CONTENTSBLOCK DIAGRAM.3COMPONENTS DESCRIPTION.5MICROCOMPUTERS TERMINAL DESCRI

4、PTION.6TEST MODE.11PC BOARD.12SCHEMATIC DIAGRAM .19EXPLODED VIEW.27PARTS LIST.29SPECIFICATIONS.BACK COVERKDC-Z727,Z72732AMFM220mV490mVFM : 400Hz 75kHzDEV 60dBuVAM : 400Hz 30%MOD 74dBuV: 1kHz 0dBCD: 1kHz 0dBCD-CH: 1kHz 1200mV INPUTAUXVOL MAXCD-CHCD/CD-CHCD : 1150mV: 1150mVAUX-IN 1150mV: 830mVFM: 250m

5、V: 1800mV: 1800mVAUXCD-CH: 1800mVCDAMCD-CHCDAUX: 1800mV: 1800mV: 1800mVAMFM: 250mV: 830mVCD-CHAUXCD: 900mV: 900mV: 900mVFMAM: 415mV: 125mVMUXREARFRONTFRONTREARREARFRONTNFREARFRONT: 4500mV: 4500mV: 4500mV: 650mV: 2100mVCD-CHAUXAMCDFMFRONT: 4500mV: 4500mV: 4500mVCDAUXCD-CHREARAMFM : 2100mV: 650mV: 450

6、0mV: 4500mV: 4500mVAUXAMCD-CHCD: 650mVN/FFM : 2100mVBU 5VSW 5VPNL 5VAUDIO 8VAUDIO 11VSERVO 7.5VVFD 14VNFAC OUTEPROMTUNERSGS-IC 01 STTDA7407E-VOLUPD703033AGCMAIN u-COMANTIC300IC900HD74HC27FPMUTE ICIC3SW-OP AMPBA3129FIC201IC200BA3121FGND-ISOTDA7401DH.P.FIC301S-80842RSTIC2ANNPPANEL u-COMUPD703033AGCIC9

7、00LEVEL SIFTTC74HC4050AFTMATRIXKEYRS-171REMOMSM531622F-ROMTSIC961IC930IC950VFDBA3830FSA-ICIC940NJM4565MDIC202SA MIX AMPTA8263BHPOWER ICIC500IC310NJM4565MDNJM4565MDIC312NJM4565MDIC311BU 5VQ614Q1SW 5VQ612PNL 5VQ622AUDIO 8V SW 14VQ624AUDIO 11VQ633 Q624SW 14VCD 7.5VQ620SW 14VQ624VFD 14VQ618BU 14VAUX-INC

8、D-CHCDBLOCK DIAGRAM (KDC-Z727)KDC-Z727KDC-Z727,Z72742AMFM220mV490mVFM : 400Hz 75kHzDEV 60dBuVAM : 400Hz 30%MOD 74dBuV: 1kHz 0dBCD: 1kHz 0dBCD-CH: 1kHz 1200mV INPUTAUXVOL MAXCD-CHCD/CD-CHCD : 1150mV: 1150mVAUX-IN 1150mV: 1500mVFM: 540mV: 2600mV: 2600mVAUXCD-CH: 2600mVCDAMCD-CHCDAUX: 2600mV: 2600mV: 2

9、600mVAMFM: 540mV: 1500mVCD-CHAUXCD: 1300mV: 1300mV: 1300mVFMAM: 750mV: 270mVMUXREARFRONTFRONTREARREAR/NFFRONTREARFRONT: 2350mV: 2350mV: 2350mV: 480mV: 1350mVCD-CHAUXAMCDFMFRONT: 2350mV: 2350mV: 2350mVCDAUXCD-CHREAR/NFAMFM : 1350mV: 480mVBU 5VSW 5VPNL 5VAUDIO 8VSERVO 7.5VVFD 14VNFAC OUTEPROMTUNERSGS-

10、IC 01 STTDA7407E-VOLUPD703033AGCMAIN u-COMANTIC300IC900HD74HC27FPMUTE ICIC3SW-OP AMPBA3129FIC201IC200BA3121FGND-ISOTDA7401DH.P.FIC301S-80842RSTIC2ANNPPANEL u-COMUPD703033AGCIC900LEVEL SIFTTC74HC4050AFTMATRIXKEYRS-171REMOMSM531622F-ROMTSIC961IC930IC950VFDBA3830FSA-ICIC940NJM4565MDIC202SA MIX AMPTA826

11、3BHPOWER ICIC500BU 5VQ614Q1SW 5VQ612PNL 5VQ622AUDIO 8V SW 14VQ624CD 7.5VQ620SW 14VQ624VFD 14VQ618BU 14VAUX-INCD-CHCDBLOCK DIAGRAM (Z727)Z727KDC-Z727,Z7275a71 SUB-CIRCUIT UNIT (X13-9930-00)COMPONENTS DESCRIPTIONRef.No. Element/Function Operation/ConditionIC1 SYS u-COMIC2 RESET System resetIC3 GATE IC

12、 Gate IC for mutingIC200 GND-ISO GND-ISO for CD-CHIC201 SW-OP CD/CD-CH input switchingIC202 Buff SA buffer and 1/2 VddIC300 E-VOL/MPX E-VOL/MPXIC301 SYSTEM ES SYSTEM ESIC310-312 Buff Buffer for 4.5 V PRE-OUTIC500 POWER AMPIC900 PNL u-COMIC930 REMOCON Remote control light sensorIC940 SA BPF BPF for S

13、AIC950 EXTENSION ROMIC960 3.3V POWER SUPPLY IC 3.3 V power supplyIC961 LEVEL SHIFT IC 5V-3.3 V level shiftingQ1 5V SWQ2 MUTE SW Muting SW for PRE-OUTQ3 CH RST SWQ4 LED SW LED SW for DISC_ and EJ SWQ5 PNL5V SWQ6 PNL5V SWQ9 Buff IFC bufferQ10 LED SW LED SW for DSIQ100,101 FM+B SWQ102,103 AM+B SWQ200 M

14、D/CD-CH SW CD/CD-CH signal switchingQ201 MUTE DRV For SA mutingQ202 ALC ALCQ300 MUTE E-VOL muting SWQ350A,B MUTE DRV PRE-OUT mutingQ351A,B MUTE DRV PRE-OUT mutingRef.No. Element/Function Operation/ConditionQ352A,B MUTE DRV PRE-OUT mutingQ600 BU DET B-U ON/OFF detectionQ601 Acc DET Acc ON/OFF detecti

15、onQ602 P-ANT SWQ603 P-ANT SWQ604 P-CON SWQ605 P-CON PROTECTQ606 P-CON PROTECTQ607 P-CON SWQ608 DIMMER SWQ609 EXT AMPCON SWQ611,612 PNL5V AVR 5V panel power supplyQ613,614 BU5V AVR 5V uCOM power supplyQ615,616 DD-CONV SWQ617,618 DD-CONV AVR DC/DC converter power supplyQ619,620 SURVO7.5V AVR 7.5V CD m

16、echanism power supplyQ621,622 AUDIO8V AVR 8V Audio power supplyQ623 14V SW8V Audio, 5 V DSP, 7.5 V SERVOQ624 14V SW8V Audio, 5 V DSP, 7.5 V SERVOQ632,633AUDIO DC/DC 11V Audio DC/DC CONV 11V AVR power supplyQ801-803 AUDIO -9V SWQ804,805 AUDIO 9V SWQ806 AUDIO 9V SWQ900 LED SW LED SW for SRC and KENWOO

17、D logosQ930,931 PNL5V SW5V Panel SW for SA-BPF and REMOTE-CONQ960 BK SWQ961,962 VFD SWKDC-Z727,Z7276a71 System Microcomputer UPD703033GC060 (IC1 : Main unit)PinNo. Pin name I/O Description Processing Operation1 AMP_MUTE O Muting control output to Power IC Muting ON: Low. Muting OFF: High.2 AMP_STBY

18、O Standby control output to Power IC Standby canceled: High. Standby mode: Low.3 NC O Output open4 NC O Output open5 P_ANT O Power antenna control output Radio mode: High. Other mode: Low.6 EVdd Connected to B-U 5 V7 EVss Connected to GND8 P_CONT O Power control output ON: High. OFF: Low.9 BEEP O Be

19、ep output Permanently “L“.10 EXT_AMP O External amp control output11 DIMMER I Dimmer detection input Dimmer ON: Low. Dimmer OFF: High.12 CH_CON O CD-CH control output ON: High. OFF: Low.13 CH_REQH O CD-CH send request output Request: Low.14 DSP_DATA O Data output to DSP_IC (M65849BFP)15 DSP_STB O St

20、robe output to DSP_IC (M65849BFP)16 DSP_CLK O Clock output to DSP_IC (M65849BFP)17 NC O Output open.18 IC/Vpp 0 Test19 IN_SEL O CD/CD-CH switching control output CD: Low. CD-CH: High. Other source: L.20 SA_MUTE O Signal muting output to spectrum analyzer MUTE ON:HI21 I2C_SDA I/O Data input/output fr

21、om/to CD mechanism, E-VOL (TDA7407) and HPF22 I2C_SCK I/O Clock output to CD mechanism, E-VOL (TDA7407) and HPF23 MUTE O Muting control output (N-CH open drain) MUTE ON:HI, MUTE OFF:LO 24 SW5V O 5 V SW control output (N-CH open drain) SW5V ON:LO, SW5V OFF:HI25 F/E_DATA I/O Data input/output from/to

22、F/E and PROM (N-CH open drain)26 F/E_CLK I/O Clock output to F/E and PROM (N-CH open drain)27 PRE_OUT_MUTE O PRE-OUT muting control outputMuting ON: Low. Muting OFF: High. Momentary power down: Low.28 IFC I IF_COUNT input from F/EStation detected: Low. Station not detected: High.29 AM+B O AM power s

23、upply control output AM ON:HI, AM OFF:LO30 FM+B O FM power supply control output FM ON:HI, FM OFF:LO31 RESET I Reset input LO:RESET ON32 XT1 Connected to Sub Xtal33 XT2 Connected to Sub Xtal34 REGC 1 uF connected to GND.35 X2 Connected to Main Xtal36 X1 Connected to Main Xtal37 Vss Connected to GND3

24、8 Vdd Connected to B-U 5 V39 CLKOUT Open40 NC O Output open.41 NC O Output open.42 P_ON O Internal power supply control ON:HI, OFF:LO43 VFD_ON O VFD power supply control output VFD ON:HI, VFD OFF:LO44 NC O Output open.PNL 5 V ON: High. PNL 5 V OFF: Low. 45 PNL5V O 5 V panel control output Panel deta

25、ched:Low. Momentary power down: Low.MICROCOMPUTERS TERMINAL DESCRIPTIONKDC-Z727,Z7277MICROCOMPUTERS TERMINAL DESCRIPTIONPinNo. Pin name I/O Description Processing Operation46 NC O47 PNL_DET I Panel position detection inputPanel open (SW ON): Low. Panel closed (SW OFF): High.48 CD_MUTE I Muting input

26、 from CD mechanism MUTE:LO49 CD_MRST O Reset output to CD mechanism RESET:LO50 CD_MSTOP O Stop request to CD mechanism STOP:LO51 CD_LO/EJ I/O CD mechanism loading motor control (Load/Eject) LOAD:LO EJ:HI52 CD_LMON O CD mechanism loading motor control (ON/OFF) LOAD:LO EJ:HI53 CD_SW3 I Input from CD m

27、echanism SW3 (DOWN_SW input) ON:HI54 NC O Output open.55 BVdd Connected to B-U 5 V56 BVss Connected to GND57 DSI O DSI LED control output Panel detached: ON. Panel attached: OFF.58-64 NC O Output open.65 PN_MC_REQ/PANEL I/O Send request output to Panel uCOM/Panel detection input Panel detection inpu

28、t. Panel ON: Low.66 PAN_RST O Reset control output to Panel uCOM Same function as PNL 5 V.67 LED_SW O LED control output for EJECT SW and DISC _OUTPUT open. ILL ON:HI, ILL OFF:LO68,69 O Output open.70 AVCONT O A/D reference voltage control output During operation: High.71 AVdd Connected to B-U 5 V72

29、 AVss Connected to GND73 AVref A/D reference voltage74 PHONE I PHONE detection input TEL muting: 1 V or less. NAVI muting: 2,5 V or more.75-78 NC I Resistor connected to GND79 MP3/CD I MP3/CD identification input CD: Low. MP3: High.80 S-METER I FM S-meter input from F/E (Analog input)81 TYPE1 I Dest

30、ination type ID input K (North America): H. M (General overseas): L82 TYPE2 I Destination type ID input K (North America): H. M (General overseas): H83 NC I Resistor connected to GND84 ST_TYPE1 I E-VOL setting selection input Normal: Low. Special: High.85 ST_TYPE2 I E-VOL setting selection input Nor

31、mal: Low. Special: High.86 NC O Output open.87 DISC_EJ_SW I CD EJECT SW input (Interrupt input) CD ejection: Low. (Interrupt input)88 CH_REQC I Send request input from CD-CH (Interrupt input) ON: Low. (Interrupt input)89 PN_SC_REQ I Send request from Panel uCOM (Interrupt input)90 CD_SW1 I Input fro

32、m CD_SW1 (Loading SW detection) LO:ON, HI:OFF91 CD_SW2 I Input from CD_SW2 (12 cm CD detection) LO:ON, HI:OFF92 ACC_DET I Acc detection input HI:ACC OFF, LO:ACC ONB-U power down: High. B-U normal: Low. 93 BU_DET I B-U detection input (Interrupt input) Muting and mechanism operation stop should be ex

33、ecuted quickly. (Interrupt input)94 CH_DATAC I Data input from CD-CH95 CH_DATAH O Data output to CD-CH96 CH_CLK I/O Clock input/output from/to CD-CH97 PN_SC_DATA I Data input from Panel uCOM98 PN_MC_DATA I/O Data output to Panel uCOM99 PN_MC_CLK O Clock output to Panel uCOM100 NC O OUTPUT OPENKDC-Z7

34、27,Z7278a71 Panel Microcomputer UPD703033GC062 (IC900 : Control uCOM)PinNo. Pin name I/O Description Processing Operation1 VFD_DATA1 O Data output “1“ to VFD driver2 VFD_CLK O Clock output to VFD driver3 NC I Resistor connected to GND4 VFD_DATA2 O Data output “2“ to VFD driver5 VFD_CLK_IN I Clock in

35、put from VFD_CLK (For use in synchronization of DATA 1 and 2)6 EVdd Connected to PNL 5 V7 EVss Connected to GND8 NC O Output open.9 5V_ON O Power supply control output to Remote Control IC and SA_IC. 5V ON:HI, 5V OFF:LO10 REMO I Remote control signal input11 NC O Output open.12 VFD_LATCH O Latch out

36、put to VFD driver13 VFD_GCP O Luminance gradation control output to VFD driver14 A13 O Address output “A13“ to external ROM15 A14 O Address output “A14“ to external ROM16 A15 O Address output “A15“ to external ROM17 VFD_BLK O Blank output to VFD driver Display ON: High. Display OFF: Low.18 IC/Vpp Te

37、st19 A5 O Address output “A5“ to external ROM20 A6 O Address output “A6“ to external ROM21 A7 O Address output “A7“ to external ROM22 A8 O Address output “A8“ to external ROM23 A9 O Address output “A9“ to external ROM24 A10 O Address output “A10“ to external ROM25 A11 O Address output “A11“ to exter

38、nal ROM26 A12 O Address output “A12“ to external ROM27 A1 O Address output “A1“ to external ROM28 A2 O Address output “A2“ to external ROM29 A3 O Address output “A3“ to external ROM30 A4 O Address output “A4“ to external ROM31 RESET I Reset input32 XT1 Resistor connected to GND33 XT2 OPEN34 REGC 1 u

39、F connected to GND35 X2 Connected to Main Xtal36 X1 Connected to Main Xtal37 Vss Connected to GND38 Vdd Connected to PNL 5 V39 CLKOUT OPEN40 NC O OUTPUT OPEN41 NC O OUTPUT OPENMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-Z727,Z7279MICROCOMPUTERS TERMINAL DESCRIPTIONPinNo. Pin name I/O Description Processi

40、ng Operation42 NC O OUTPUT OPEN43 OE O Output Enable output to external ROM44 CE O Chip Enable output to external ROM45 NC O OUTPUT OPEN46 NC O OUTPUT OPEN47 AD0 I Data input “AD0“ from external ROM48 AD1 I Data input “AD1“ from external ROM49 AD2 I Data input “AD2“ from external ROM50 AD3 I Data in

41、put “AD3“ from external ROM51 AD4 I Data input “AD4“ from external ROM52 AD5 I Data input “AD5“ from external ROM53 AD6 I Data input “AD6“ from external ROM54 AD7 I Data input “AD7“ from external ROM55 BVdd Connected to PNL 5 V56 BVss Connected to GND57 AD8 I Data input “AD8“ from external ROM58 AD9

42、 I Data input “AD9“ from external ROM59 AD10 I Data input “AD10“ from external ROM60 AD11 I Data input “AD11“ from external ROM61 AD12 I Data input “AD12“ from external ROM62 AD13 I Data input “AD13“ from external ROM63 AD14 I Data input “AD14“ from external ROM64 AD15 I Data input “AD15“ from exter

43、nal ROM65 A16 O Address output “A16“ to external ROM66 A17 O Address output “A17“ to external ROM67 A18 O Address output “A18“ to external ROM68 A19 O Address output “A19“ to external ROM69 NC O OUTPUT OPEN70 A21 O Address output “A21“ to external ROM71 AVdd Connected to PNL 5 V72 AVss Connected to

44、GND73 AVref74 SA_F01 I Spectrum analyzer signal input (63Hz)75 SA_F02 I Spectrum analyzer signal input (150Hz)76 SA_F03 I Spectrum analyzer signal input (330Hz)77 SA_F04 I Spectrum analyzer signal input (1KHz)78 SA_F05 I Spectrum analyzer signal input (3.3KHz)79 SA_F06 I Spectrum analyzer signal inp

45、ut (10KHz)80 LEVEL_M I MIX signal input for level meter81 KR5 I Key return “5“82 KR4 I Key return “4“KDC-Z727,Z72710MICROCOMPUTERS TERMINAL DESCRIPTIONPinNo. Pin name I/O Description Processing Operation83 KR3 I Key return “3“84 KR2 I Key return “2“85 KR1 I Key return “1“86 PN_SC_REQ O Send request

46、output to Main uCOM87 AVCONT O A/D reference voltage control output Operating: High.88 PN_SC_CON I Operation control input from Main uCOM Operating: High. (Interrupt input)89 NC O Output open.90 SOURCE I SRC key input ON: High. OFF: Low. (Interrupt input)91 BLUE O Blue LED control output LED ON:HI,

47、LED OFF:LO92 PN_MC_REQ I Send request input from Main uCOM93 KS4 O Key scan “4“94 KS3 O Key scan “3“ and Flash uCOM write port95 KS2 O Key scan “2“ and Flash uCOM write port96 KS1 O Key scan “1“ and Flash uCOM write port97 PN_SC_DATA I Data input from Main uCOM98 PN_MC_DATA O Data output to Main uCOM99 PN_MC_CLK I Clock input from Main uCOM100 NC I Resistor connected to GND