Kenwood-KDCZ-727-Service-Manual(2) 电路图 维修手册.pdf

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1、 2001-5 PRINTED IN JAPAN B51-7791-00 (N) 1737 CD.MD-CH CONTROL CD RECEIVER KDC-Z727 Z727 SERVICE MANUAL SRC PWR OFF 47Wx4 S.A FM AM DISC CD MD-CH CONTROL CD RECEIVER EX KDC-Z727 AUD 4.5V PREOUT LOUDDISP SCANRDMREPM.RDMAUTOAMEMENU NAME.S NF COMPACT DIGITAL AUDIO 2ZONE DAB TEXT DPAC DPAC SRC PWR OFF 4

2、7Wx4 S.A FM AM DISC CD MD-CH CONTROL CD RECEIVER AUD LOUDDISP SCANRDMREPM.RDMAUTOAMEMENU NAME.S NF COMPACT DIGITAL AUDIO 2ZONE DAB TEXT SIZE 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-

3、2625-08) Front glass assy (B10-4203-08) Escutcheon (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)x2 Stay (J54-0606-04) Screw set (N99-1700-05) Screw set (N99-1716-08) KDC-Z727 Z727 RC-520 RadioFans.CN 收音机爱 好者资料库

4、KDC-Z727,Z727 2 CONTENTS BLOCK DIAGRAM.3 COMPONENTS DESCRIPTION.5 MICROCOMPUTERS TERMINAL DESCRIPTION.6 TEST MODE.11 PC BOARD.12 SCHEMATIC DIAGRAM .19 EXPLODED VIEW.27 PARTS LIST.29 SPECIFICATIONS.BACK COVER RadioFans.CN 收音机爱 好者资料库 KDC-Z727,Z727 3 2 AM FM 220mV 490mV FM: 400Hz 75kHzDEV 60dBuV AM: 40

5、0Hz 30%MOD 74dBuV : 1kHz 0dBCD : 1kHz 0dBCD-CH : 1kHz 1200mV INPUTAUX VOL MAX CD-CHCD/CD-CH CD: 1150mV : 1150mV AUX-IN1150mV : 830mVFM : 250mV : 1800mV : 1800mV AUX CD-CH : 1800mVCD AM CD-CH CD AUX : 1800mV : 1800mV : 1800mV AM FM : 250mV : 830mV CD-CH AUX CD : 900mV : 900mV : 900mV FM AM : 415mV :

6、125mV MUX REAR FRONT FRONT REAR REAR FRONT NF REAR FRONT : 4500mV : 4500mV : 4500mV : 650mV : 2100mV CD-CH AUX AM CD FM FRONT : 4500mV : 4500mV : 4500mVCD AUX CD-CH REAR AM FM: 2100mV : 650mV : 4500mV : 4500mV : 4500mVAUX AM CD-CH CD : 650mV N/F FM: 2100mV BU 5V SW 5V PNL 5V AUDIO 8V AUDIO 11V SERVO

7、 7.5V VFD 14V NF AC OUT EPROM TUNER SGS-IC 01 ST TDA7407 E-VOL UPD703033AGC MAIN u-COM ANT IC300 IC900 HD74HC27FP MUTE IC IC3 SW-OP AMP BA3129F IC201 IC200 BA3121F GND-ISO TDA7401D H.P.F IC301 S-80842 RST IC2 ANNP PANEL u-COM UPD703033AGC IC900 LEVEL SIFT TC74HC4050AFT MATRIX KEY RS-171 REMO MSM5316

8、22F- ROM TS IC961 IC930 IC950 VFD BA3830F SA-IC IC940 NJM4565MD IC202 SA MIX AMP TA8263BH POWER IC IC500 IC310 NJM4565MD NJM4565MD IC312 NJM4565MD IC311 BU 5V Q614 Q1 SW 5V Q612 PNL 5V Q622 AUDIO 8VSW 14V Q624 AUDIO 11V Q633Q624 SW 14V CD 7.5V Q620 SW 14V Q624 VFD 14V Q618 BU 14V AUX-IN CD-CH CD BLO

9、CK DIAGRAM (KDC-Z727) KDC-Z727 RadioFans.CN 收音机爱 好者资料库 KDC-Z727,Z727 4 2 AM FM 220mV 490mV FM: 400Hz 75kHzDEV 60dBuV AM: 400Hz 30%MOD 74dBuV : 1kHz 0dBCD : 1kHz 0dBCD-CH : 1kHz 1200mV INPUTAUX VOL MAX CD-CHCD/CD-CH CD: 1150mV : 1150mV AUX-IN1150mV : 1500mVFM : 540mV : 2600mV : 2600mV AUX CD-CH : 260

10、0mVCD AM CD-CH CD AUX : 2600mV : 2600mV : 2600mV AM FM : 540mV : 1500mV CD-CH AUX CD : 1300mV : 1300mV : 1300mV FM AM : 750mV : 270mV MUX REAR FRONT FRONT REAR REAR/NF FRONT REAR FRONT : 2350mV : 2350mV : 2350mV : 480mV : 1350mV CD-CH AUX AM CD FM FRONT : 2350mV : 2350mV : 2350mVCD AUX CD-CH REAR/NF

11、 AM FM: 1350mV : 480mV BU 5V SW 5V PNL 5V AUDIO 8V SERVO 7.5V VFD 14V NF AC OUT EPROM TUNER SGS-IC 01 ST TDA7407 E-VOL UPD703033AGC MAIN u-COM ANT IC300 IC900 HD74HC27FP MUTE IC IC3 SW-OP AMP BA3129F IC201 IC200 BA3121F GND-ISO TDA7401D H.P.F IC301 S-80842 RST IC2 ANNP PANEL u-COM UPD703033AGC IC900

12、 LEVEL SIFT TC74HC4050AFT MATRIX KEY RS-171 REMO MSM531622F- ROM TS IC961 IC930 IC950 VFD BA3830F SA-IC IC940 NJM4565MD IC202 SA MIX AMP TA8263BH POWER IC IC500 BU 5V Q614 Q1 SW 5V Q612 PNL 5V Q622 AUDIO 8VSW 14V Q624 CD 7.5V Q620 SW 14V Q624 VFD 14V Q618 BU 14V AUX-IN CD-CH CD BLOCK DIAGRAM (Z727)

13、Z727 KDC-Z727,Z727 5 G SUB-CIRCUIT UNIT (X13-9930-00) COMPONENTS DESCRIPTION Ref.No.Element/FunctionOperation/Condition IC1SYS u-COM IC2RESETSystem reset IC3GATE ICGate IC for muting IC200 GND-ISOGND-ISO for CD-CH IC201 SW-OPCD/CD-CH input switching IC202 BuffSA buffer and 1/2 Vdd IC300 E-VOL/MPXE-V

14、OL/MPX IC301 SYSTEM ESSYSTEM ES IC310-312BuffBuffer for 4.5 V PRE-OUT IC500 POWER AMP IC900 PNL u-COM IC930 REMOCONRemote control light sensor IC940 SA BPFBPF for SA IC950EXTENSION ROM IC9603.3V POWER SUPPLY IC3.3 V power supply IC961 LEVEL SHIFT IC5V-3.3 V level shifting Q15V SW Q2MUTE SWMuting SW

15、for PRE-OUT Q3CH RST SW Q4LED SWLED SW for DISC_ and EJ SW Q5PNL5V SW Q6PNL5V SW Q9BuffIFC buffer Q10 LED SWLED SW for DSI Q100,101FM+B SW Q102,103AM+B SW Q200 MD/CD-CH SWCD/CD-CH signal switching Q201 MUTE DRVFor SA muting Q202 ALCALC Q300 MUTEE-VOL muting SW Q350A,BMUTE DRVPRE-OUT muting Q351A,BMU

16、TE DRVPRE-OUT muting Ref.No.Element/FunctionOperation/Condition Q352A,BMUTE DRVPRE-OUT muting Q600 BU DETB-U ON/OFF detection Q601 Acc DETAcc ON/OFF detection Q602 P-ANT SW Q603 P-ANT SW Q604 P-CON SW Q605P-CON PROTECT Q606P-CON PROTECT Q607 P-CON SW Q608 DIMMER SW Q609EXT AMPCON SW Q611,612PNL5V AV

17、R5V panel power supply Q613,614BU5V AVR5V uCOM power supply Q615,616DD-CONV SW Q617,618DD-CONV AVRDC/DC converter power supply Q619,620SURVO7.5V AVR7.5V CD mechanism power supply Q621,622AUDIO8V AVR8V Audio power supply Q623 14V SW 8V Audio, 5 V DSP, 7.5 V SERVO Q624 14V SW 8V Audio, 5 V DSP, 7.5 V

18、SERVO Q632,633 AUDIO DC/DC11V Audio DC/DC CONV 11V AVRpower supply Q801-803AUDIO -9V SW Q804,805AUDIO 9V SW Q806 AUDIO 9V SW Q900 LED SWLED SW for SRC and KENWOOD logos Q930,931PNL5V SW 5V Panel SW for SA-BPF and REMOTE-CON Q960 BK SW Q961,962VFD SW KDC-Z727,Z727 6 G System Microcomputer UPD703033GC

19、060 (IC1 : Main unit) PinNo.Pin nameI/ODescriptionProcessing Operation 1AMP_MUTEOMuting control output to Power ICMuting ON: Low. Muting OFF: High. 2AMP_STBYOStandby control output to Power ICStandby canceled: High. Standby mode: Low. 3NCOOutput open 4NCOOutput open 5P_ANTOPower antenna control outp

20、utRadio mode: High. Other mode: Low. 6EVddConnected to B-U 5 V 7EVssConnected to GND 8P_CONTOPower control outputON: High. OFF: Low. 9BEEPOBeep outputPermanently L. 10EXT_AMPOExternal amp control output 11DIMMERIDimmer detection inputDimmer ON: Low. Dimmer OFF: High. 12CH_CONOCD-CH control outputON:

21、 High. OFF: Low. 13CH_REQHOCD-CH send request outputRequest: Low. 14DSP_DATAOData output to DSP_IC (M65849BFP) 15DSP_STBOStrobe output to DSP_IC (M65849BFP) 16DSP_CLKOClock output to DSP_IC (M65849BFP) 17NCOOutput open. 18IC/Vpp0Test 19IN_SELOCD/CD-CH switching control outputCD: Low. CD-CH: High. Ot

22、her source: L. 20SA_MUTEOSignal muting output to spectrum analyzerMUTE ON:HI 21I2C_SDAI/OData input/output from/to CD mechanism, E-VOL (TDA7407) and HPF 22I2C_SCKI/OClock output to CD mechanism, E-VOL (TDA7407) and HPF 23MUTEOMuting control output (N-CH open drain)MUTE ON:HI, MUTE OFF:LO 24SW5VO5 V

23、SW control output (N-CH open drain)SW5V ON:LO, SW5V OFF:HI 25F/E_DATAI/OData input/output from/to F/E and PROM (N-CH open drain) 26F/E_CLKI/OClock output to F/E and PROM (N-CH open drain) 27PRE_OUT_MUTEOPRE-OUT muting control output Muting ON: Low. Muting OFF: High. Momentary power down: Low. 28IFCI

24、IF_COUNT input from F/E Station detected: Low. Station not detected: High. 29AM+BOAM power supply control outputAM ON:HI, AM OFF:LO 30FM+BOFM power supply control outputFM ON:HI, FM OFF:LO 31RESETIReset inputLO:RESET ON 32XT1Connected to Sub Xtal 33XT2Connected to Sub Xtal 34REGC1 uF connected to GN

25、D. 35X2Connected to Main Xtal 36X1Connected to Main Xtal 37VssConnected to GND 38VddConnected to B-U 5 V 39CLKOUTOpen 40NCOOutput open. 41NCOOutput open. 42P_ONOInternal power supply controlON:HI, OFF:LO 43VFD_ONOVFD power supply control outputVFD ON:HI, VFD OFF:LO 44NCOOutput open. PNL 5 V ON: High

26、. PNL 5 V OFF: Low. 45PNL5VO5 V panel control outputPanel detached:Low. Momentary power down: Low. MICROCOMPUTERS TERMINAL DESCRIPTION KDC-Z727,Z727 7 MICROCOMPUTERS TERMINAL DESCRIPTION PinNo.Pin nameI/ODescriptionProcessing Operation 46NCO 47PNL_DETIPanel position detection input Panel open (SW ON

27、): Low. Panel closed (SW OFF): High. 48CD_MUTEIMuting input from CD mechanismMUTE:LO 49CD_MRSTOReset output to CD mechanismRESET:LO 50CD_MSTOPOStop request to CD mechanismSTOP:LO 51CD_LO/EJI/OCD mechanism loading motor control (Load/Eject)LOAD:LO EJ:HI 52CD_LMONOCD mechanism loading motor control (O

28、N/OFF)LOAD:LO EJ:HI 53CD_SW3IInput from CD mechanism SW3 (DOWN_SW input)ON:HI 54NCOOutput open. 55BVddConnected to B-U 5 V 56BVssConnected to GND 57DSIODSI LED control outputPanel detached: ON. Panel attached: OFF. 58-64NCOOutput open. 65PN_MC_REQ/PANELI/OSend request output to Panel uCOM/Panel dete

29、ction inputPanel detection input. Panel ON: Low. 66PAN_RSTOReset control output to Panel uCOMSame function as PNL 5 V. 67LED_SWOLED control output for EJECT SW and DISC _OUTPUT open.ILL ON:HI, ILL OFF:LO 68,69OOutput open. 70AVCONTOA/D reference voltage control outputDuring operation: High. 71AVddCo

30、nnected to B-U 5 V 72AVssConnected to GND 73AVrefA/D reference voltage 74PHONEIPHONE detection inputTEL muting: 1 V or less. NAVI muting: 2,5 V or more. 75-78NCIResistor connected to GND 79MP3/CDIMP3/CD identification inputCD: Low. MP3: High. 80S-METERIFM S-meter input from F/E(Analog input) 81TYPE1

31、IDestination type ID inputK (North America): H. M (General overseas): L 82TYPE2IDestination type ID inputK (North America): H. M (General overseas): H 83NCIResistor connected to GND 84ST_TYPE1IE-VOL setting selection inputNormal: Low. Special: High. 85ST_TYPE2IE-VOL setting selection inputNormal: Lo

32、w. Special: High. 86NCOOutput open. 87DISC_EJ_SWICD EJECT SW input (Interrupt input)CD ejection: Low. (Interrupt input) 88CH_REQCISend request input from CD-CH (Interrupt input)ON: Low. (Interrupt input) 89PN_SC_REQISend request from Panel uCOM(Interrupt input) 90CD_SW1IInput from CD_SW1 (Loading SW

33、 detection)LO:ON, HI:OFF 91CD_SW2IInput from CD_SW2 (12 cm CD detection)LO:ON, HI:OFF 92ACC_DETIAcc detection inputHI:ACC OFF, LO:ACC ON B-U power down: High. B-U normal: Low. 93BU_DETIB-U detection input (Interrupt input)Muting and mechanism operation stop should be executed quickly. (Interrupt inp

34、ut) 94CH_DATACIData input from CD-CH 95CH_DATAHOData output to CD-CH 96CH_CLKI/OClock input/output from/to CD-CH 97PN_SC_DATAIData input from Panel uCOM 98PN_MC_DATAI/OData output to Panel uCOM 99PN_MC_CLKOClock output to Panel uCOM 100NCOOUTPUT OPEN KDC-Z727,Z727 8 G Panel Microcomputer UPD703033GC

35、062 (IC900 : Control uCOM) PinNo.Pin nameI/ODescriptionProcessing Operation 1VFD_DATA1OData output 1 to VFD driver 2VFD_CLKOClock output to VFD driver 3NCIResistor connected to GND 4VFD_DATA2OData output 2 to VFD driver 5VFD_CLK_INIClock input from VFD_CLK (For use in synchronization of DATA 1 and 2

36、) 6EVddConnected to PNL 5 V 7EVssConnected to GND 8NCOOutput open. 95V_ONOPower supply control output to Remote Control IC and SA_IC.5V ON:HI, 5V OFF:LO 10REMOIRemote control signal input 11NCOOutput open. 12VFD_LATCHOLatch output to VFD driver 13VFD_GCPOLuminance gradation control output to VFD dri

37、ver 14A13OAddress output A13 to external ROM 15A14OAddress output A14 to external ROM 16A15OAddress output A15 to external ROM 17VFD_BLKOBlank output to VFD driverDisplay ON: High. Display OFF: Low. 18IC/VppTest 19A5OAddress output A5 to external ROM 20A6OAddress output A6 to external ROM 21A7OAddre

38、ss output A7 to external ROM 22A8OAddress output A8 to external ROM 23A9OAddress output A9 to external ROM 24A10OAddress output A10 to external ROM 25A11OAddress output A11 to external ROM 26A12OAddress output A12 to external ROM 27A1OAddress output A1 to external ROM 28A2OAddress output A2 to exter

39、nal ROM 29A3OAddress output A3 to external ROM 30A4OAddress output A4 to external ROM 31RESETIReset input 32XT1Resistor connected to GND 33XT2OPEN 34REGC1 uF connected to GND 35X2Connected to Main Xtal 36X1Connected to Main Xtal 37VssConnected to GND 38VddConnected to PNL 5 V 39CLKOUTOPEN 40NCOOUTPU

40、T OPEN 41NCOOUTPUT OPEN MICROCOMPUTERS TERMINAL DESCRIPTION KDC-Z727,Z727 9 MICROCOMPUTERS TERMINAL DESCRIPTION PinNo.Pin nameI/ODescriptionProcessing Operation 42NCOOUTPUT OPEN 43OEOOutput Enable output to external ROM 44CEOChip Enable output to external ROM 45NCOOUTPUT OPEN 46NCOOUTPUT OPEN 47AD0I

41、Data input AD0 from external ROM 48AD1IData input AD1 from external ROM 49AD2IData input AD2 from external ROM 50AD3IData input AD3 from external ROM 51AD4IData input AD4 from external ROM 52AD5IData input AD5 from external ROM 53AD6IData input AD6 from external ROM 54AD7IData input AD7 from externa

42、l ROM 55BVddConnected to PNL 5 V 56BVssConnected to GND 57AD8IData input AD8 from external ROM 58AD9IData input AD9 from external ROM 59AD10IData input AD10 from external ROM 60AD11IData input AD11 from external ROM 61AD12IData input AD12 from external ROM 62AD13IData input AD13 from external ROM 63

43、AD14IData input AD14 from external ROM 64AD15IData input AD15 from external ROM 65A16OAddress output A16 to external ROM 66A17OAddress output A17 to external ROM 67A18OAddress output A18 to external ROM 68A19OAddress output A19 to external ROM 69NCOOUTPUT OPEN 70A21OAddress output A21 to external RO

44、M 71AVddConnected to PNL 5 V 72AVssConnected to GND 73AVref 74SA_F01ISpectrum analyzer signal input (63Hz) 75SA_F02ISpectrum analyzer signal input (150Hz) 76SA_F03ISpectrum analyzer signal input (330Hz) 77SA_F04ISpectrum analyzer signal input (1KHz) 78SA_F05ISpectrum analyzer signal input (3.3KHz) 7

45、9SA_F06ISpectrum analyzer signal input (10KHz) 80LEVEL_MIMIX signal input for level meter 81KR5IKey return 5 82KR4IKey return 4 KDC-Z727,Z727 10 MICROCOMPUTERS TERMINAL DESCRIPTION PinNo.Pin nameI/ODescriptionProcessing Operation 83KR3IKey return 3 84KR2IKey return 2 85KR1IKey return 1 86PN_SC_REQOS

46、end request output to Main uCOM 87AVCONTOA/D reference voltage control outputOperating: High. 88PN_SC_CONIOperation control input from Main uCOMOperating: High. (Interrupt input) 89NCOOutput open. 90SOURCEISRC key inputON: High. OFF: Low. (Interrupt input) 91BLUEOBlue LED control outputLED ON:HI, LE

47、D OFF:LO 92PN_MC_REQISend request input from Main uCOM 93KS4OKey scan 4 94KS3OKey scan 3 and Flash uCOM write port 95KS2OKey scan 2 and Flash uCOM write port 96KS1OKey scan 1 and Flash uCOM write port 97PN_SC_DATAIData input from Main uCOM 98PN_MC_DATAOData output to Main uCOM 99PN_MC_CLKIClock input from Main uCOM 100NCIResistor connected to GND (9) Special display when display is All ON Pressing one of the PRESET keys while all display is ON in the All OFF mod