Kenwood-KD-CMP-925-Service-Manual 电路图 维修手册.pdf

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1、 2004-02 PRINTED IN JAPAN B53-0131-00 (N) 2439 CD RECEIVER KDC-MP925 KDC-W8027 SERVICE MANUAL *Size AA Battery (Not Supplied) Escutcheon (B07-3078-01) Plastic cabinet assy (A02-2731-13) Mounting hardware assy (J21-9823-03) * DC cord (E30-4942-05) * Antenna adaptor (T90-0552-05) Screw (N99-1734-05) L

2、ever (D10-4674-04) x 2 *Screw set (N99-1723-05) CD mechanism extension cord (24PIN) : W05-0935-00 * DC cord (E30-6295-05) *Remote controller assy (A70-2040-05) : RC-505 *Remote controller assy (A70-2026-05) : RC-420 * Depends on model. Refer to the parts list. TDF PANEL INFORMATION MODEL PARTS NO. P

3、ANEL NAME KDC-MP925 KDC-W8027 Y33-1790-61 TDF-M7000 Panel assy KDC-MP925 (A64-3226-01) Panel assy KDC-W8027 (A64-3232-01) Panel assy (A64-3252-02) Panel assy (A64-3248-02) RadioFans.CN 收音机爱 好者资料库 KDC-MP925/W8027 2 TUNER CD CH MECHA PANEL TDF UNIT SWITCH UNIT (X16-208) (X16-256) (X34- ) (X16-253) DIS

4、PLAY UNIT BUFFER RDS DECODER BUFFER REMO RESET SW KEY MATRIX FL SYSTEM MPX E-VOL & ACC DET TEL MUTE B.U DET SYSTEM DRIVER MUTE POWER IC ACC TEL MUTE BACK UP SP OUT (FL) RESET KEY ILL IC14 IC2 IC1 IC4 IC8 IC9 Q303,304 AM+B AGC ES+ PRE MUTE PRE MUTE PRE MUTE PRE OUT (FRONT) PRE OUT (REAR) (SUB WOOFER)

5、 PRE OUT AUX IN OP AMP OP AMP OP AMP SP OUT (FR) SP OUT (RL) SP OUT (RR) EXT AMP DIMMERDIMMER EXT.AMP.CON ANT-CONANT CON P-CONP CON WIRED REMO/ OPEL DISP I/F FOCUS SW WOW IC5 IC20 IC6 IC9 IC13 IC12 IC11 Q207,208 Q205,206 Q203,204 BU5V SW 5V SW 14V 5V SERVO FL+B SW REG A8V PANEL Q1,2 Q3,601 Q502,503

6、Q4,5 Q6-8 Q9,602 BU5V SW5V PANEL5V SW14V DC/DCA8V SERVO CD4.7V IC16 MOTOR DRDR MOTOR IC15 DC/DC ROTARY ENCODER IC7 LEVEL SHIFT LEVEL SHIFT IC8 u-COM IC11 IC2 MASK ROM 2.5V ROM FLASH IC4 BPF PANEL SW5V IC6 3.3V SW3.3V Q5 FL+B Q4 FL3.3V Q2,3 EEPROM EEP5V Q501 IC1 Q23,24 Q26 Q25 IC18 Q27 Q29 IC10 Q6,10

7、 Q11-14 IC19 LEDLED EEPROM MICROPROCESSOR S-METER AUDIO OUT SERVO 8V BU5V CD4.7V BACK UP FM AM CD QUAL CH PANEL5 KEY BU5V 8V SW5V 8V8V SW5V BPF 8V 8V 9V 9V 9V 8V 9V SW5V FL+B FAC AGC 8V 8V BU5V BU5V BU5V SERVO ILL+ SW5V BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 KDC-MP925/W8027 3 SUB CIRCUIT UNIT (X16-20

8、80-10) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1E2PROME2PROM for security DISPLAY UNIT (X16-2530-11) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1Panel microprocessorPanel control microprocessor IC2ROM ICGraphic ROM IC4AVRFor 3.3V power supply

9、IC5AVRFor 2.5V power supply IC6Buffer ICLevel shift buffer IC (5V3.3V) IC7Buffer ICLevel shift buffer IC (3.3V5V) IC8Remote control ICFor Remote control sensor IC9Logic ICControl for FL contrast IC10Analog ICSpectrum analyzer IC Q13.3V RegulatorWhile PAN5V is applied when 3.3V regulator output is +3

10、.3V Q22.5V RegulatorWhile PAN5V is applied when 2.5V regulator output is +2.5V Q3,4FL +B SWFL +B (VDD1) is turned on when Q3 base level goes H Q53.3V SWSW3.3V is turned on when Q5 base level goes L Q6,200FL 3.3V SWFL +3.3V (VDD1) is turned on when Q200 base level goes H Q7,8Remote control ON SWThe p

11、ower supply of IC8, 10 is turned on when Q10 base level goes H Q9FL BLK SWVFD is turned on when Q9 base level goes H Q11Red LED SWRed LED is turned on when Q11 base level goes H SWITCH UNIT (X16-2560-10) Ref No.Application / FunctionsOperation / Condition / Compatibility Q1DSI LED SWDSI LED blinks w

12、hen Q1 base level goes H/L Q2KEY Illumination SW (Green)KEY Illumination SW “ON” when the Q2 base level goes H Q3KEY Illumination SW (Red)KEY Illumination SW “ON” when the Q3 base level goes H Q4KEY Illumination SW (Blue)KEY Illumination SW “ON” when the Q4 base level goes H CD PLAYER UNIT (X32-5540

13、-00) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1Mechanism control microprocessor- IC2DSPCD signal processor, RF amp, Servo control IC3Decoder ICMP3/WMA decoder IC4BTL driverFocus, Tracking coil, Feed and Spindle motor driver IC IC5AVRSW3.3V AVR IC6AVRBU3.3V AVR IC7AVRBU2.

14、5V AVR IC8Selector ICSerial audio data selector COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KDC-MP925/W8027 4 Ref No.Application / FunctionsOperation / Condition / Compatibility IC9AVR3.3V AVR (IC2 DAC part) Q1,4Level shift FETLevel shift (3.3V - 5.0V) Q3,5Level shift TRLevel shift (3.3V - 5.0V)

15、Q6Level shift TRLevel shift (3.3V - 5.0V) Q7Level shift TRLevel shift (3.3V - 5.0V) Q8APCAuto power control Q9,10Switching TRSub beam delay control switch ELECTRIC UNIT (X34-3030-10, X34-3032-71) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1System control ICSystem control m

16、icroprocessor IC2E-VOL & tuner ICE-VOL. FM/AM tuner & stereo decoder IC3Power supply ICFor A8V AVR IC4Audio power ICAudio power amplifier IC5System ICFor System Es control IC6Audio control ICFor WOW/FOCUS control IC7Power supply IC-9V AVR (For 4.5V Pre-out) IC8Reset ICWhen BU5V line voltage is less

17、than 3.5V, this IC output line is “L” IC9Muting logic ICControl for MUTE, P-ANT & RESET muting IC10Buffer ICFor spectrum analyzer IC1113OP AMPFor 4.5V Pre-out IC14RDS decoderDecode for RDS signal IC15,16Motor driverControl for Panel mechanism motor IC18P-CON ICPower control IC IC19Power supply ICSwi

18、tching regulator IC for CD4.7V IC20Analog SWControl for WOW/FOCUS IC (IC4) Q1,2BU 5V AVRWhile BU is applied when BU5V regulator output is +5V Q3,601SW5V AVRWhen Q601base level goes H, SW5V regulator output is +5V Q4,5SW14V AVRWhen Q5 base level goes H, SW14V regulator output is +14V Q68Audio 8V AVRW

19、hen Q6 base level goes H, A8V regulator output is +8.3V Q9,602Servo +B AVRWhen Q602 base level goes H, S+B regulator output is +7.5V Q1114Illumination & DC/DC +B AVRWhen Q11 base level goes H, AVR output is +9.2V Q15,16Audio 10.5V AVRWhen Q16 base level goes H, AVR output is +10.5V Q1719Pre Amp & -9

20、V AVR Q18,19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to OP AMP for Pre-out Q2022Pre Amp & +9V AVR Q20,22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to OP AMP for Pre-out Q23,24P-ANT SWWhen Q23 base level goes H, P-ANT SW output is +14V Q

21、25BufferEX amp control buffer Q26Small lamp det. SWWhen Q26 base level goes H, Q26 turned ON COMPONENTS DESCRIPTION KDC-MP925/W8027 5 Ref No.Application / FunctionsOperation / Condition / Compatibility Q27BU detectorWhen Q27 base level goes H, Q27 turned ON Q29ACC detectorWhen Q29 base level goes H,

22、 Q29 turned ON Q30,31Muting driverWhen base level goes L, muting driver is turned ON Q201BufferNoise detect buffer amp Q202E-VOL muting SWWhen Q202 base level goes H, muting SW is turned ON Q203208Pre-out muting SWWhen base level goes H, Pre-output is muted Q210AGCFor AGC for spectrum analyzer Q303,

23、304AM +B SWWhen Q303 base level goes H, AM +B is out to tuner unit Q305BufferComposite signal buffer for RDS Q501E2P 5V SWWhen Q501 base level goes L, E2P 5V is out for E2PROM Q502,503Panel 5V SWWhen Q503 base level goes H, Panel 5V is out Q603SWWhen Q603 base level goes H, Q603 is turned ON COMPONE

24、NTS DESCRIPTION SYSTEM MICROPROCESSOR : UPD703030GC041 (X34-303 : IC1) Pin No.Pin NameI/ODescription / Processing OperationFig. 1PLL DATAI/OData input/output terminal for Tuner front-end 2AM+BI/OAM+B (AM operation : H) 3(FM+B)OFM+B (FM operation : H, Last FM : H with RDS, RBDS model) 4PAN E2P DATAI/

25、OVariable illumination D/A converter, E2PROM DATA terminal 5PAN E2P CLKI/OVariable illumination D/A converter, E2PROM CLK terminal 6EVDD-VDD 5V 7EVSS-GND 8AFSOTime constant switching for noise detection (FM seek, AF search, AUTO 0 : L, Receiving : H) 9BEEPOBEEP audio output terminal 10REMOIRemote co

26、ntrol input terminal 11P MUTEOAudio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L) 12SVROAudio power IC SVR discharge circuit control terminal 13IC2 SDAI/OCD mechanism, IC2, IC5, ROM correction DATA line 14IC2 CLKI/OCD mechanism, IC2, IC5, ROM correction CLOCK line 15P STBYOAudi

27、o power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L) 16P CONI/OPower control terminal (POWER ON : H, POWER OFF, ALL OFF : Hi-Z) 17WOW MODE2OWOW control terminal1 MICROCOMPUTERS TERMINAL DESCRIPTION KDC-MP925/W8027 6 Pin No.Pin NameI/ODescription / Processing OperationFig 18TEST-

28、NC (GND) 19DIAGIOver voltage/Over current detection terminal (Normal : H, Bad condition : L) 20MUTEOMUTE output terminal (ON : OPEN, OFF : L) 21PRE MUTEROPREOUT (Rch) muting control terminal 22PRE MUTELOPREOUT (Lch) muting control terminal 23BU DETIMomentary power dropped detection terminal (No Back

29、up, Momentary power dropped : H, Backup : L) 24ACC DETIACC detection terminal (With ACC : L, Without ACC : H) 25FOCUSI/OWOW/FOCUS control terminal (FOCUS HI : H, FOCUS LOW : L) 26EXT AMP CONTOExternal amplifier control terminal 27DIMMERISmall lamp detection terminal (ON : L, OFF : H) 28ANT CONT(TYPE

30、2)I/OAntenna control/Destination select terminal (TUNER ON : H) 29P ONI/OSW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z) 30ILL ONI/OFL, illumination control terminal (ON : H, OFF : Hi-Z) 31RESETIReset input terminal 32,33XT1/XT2-Sub clock (32.768KHz) 34REGC-Connect to 1F capacitor 35,3

31、6X2/X1-Main clock (20MHz) 37VSS-GND 38VDD-AVR 5V 39CLKOUT-NC 40LX REQ MOCommunication request to external slave unit (Request : L) 41LX MUTEIMute request from external slave unit (MUTE : H). 42LX CONOExternal slave unit (ON : H, OFF : L) 43LX RSTOReset output to external slave unit (Normal : L, Afte

32、r system reset : H 400ms or more and then L) 44CD MECHA+BOCD4.7V output terminal (CD : H, Except CD source : L) 45,46TYPE0/TYPE1IDestination select terminal 47,48IC2 TYPE0/TYPE1IIC2 destination select terminal 49PAN5VOPanel 5V control terminal (ON : H, Momentary power dropped : Hi-Z) 50E2P5VI/OE2PRO

33、M, D/A converter power supply control terminal (ON : L, OFF : Hi-Z) 51DSII/ODSI control (ON : L, OFF : Hi-Z) 52MC REQOCommunication request to panel microprocessor 53PAN RSTOReset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L) 54WOW MODE3OWOW control terminal1 55DVDD

34、-AVR 5V 56DVSS-GND 57SC CONOPanel microprocessor control terminal (POWER OFF, ACC OFF : L) 58M RSTOReset output to CD mechanism (Normal : H, Reset : L) 59M STOPOStop request to CD mechanism (STOP : L, CD : H) 60CD SW3ICD DOWN SW detection terminal (CD disc chucking : H) 61LO/EJI/OCD mechanism loadin

35、g/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H) MICROCOMPUTERS TERMINAL DESCRIPTION KDC-MP925/W8027 7 Pin No.Pin NameI/ODescription / Processing OperationFig 62MOSWOCD mechanism motor driver SW (LOADING, EJECT, Brake : H) 63FPM MOTOR BOFPM mechanism (Slider) control terminal2 64FPM MO

36、TOR FOFPM mechanism (Slider) control terminal2 65FPM MOTOR OOFPM mechanism (Angle) control terminal2 66FPM MOTOR COFPM mechanism (Angle) control terminal2 67O DATAI/OExternal display DATA terminal2 68O CLKI/OExternal display CLK terminal 69O CEI/OExternal display chip enable terminal 70M MUTERIMute

37、request from CD mechanism (Rch ON : L) 71AVDD-AVR 5V 72AVSS-GND 73AVREFIConnect to P-ON (29PIN) 74M MUTELIMute request from CD mechanism (Lch ON : L) 75PAN DETIPANEL, E2PROM detection terminal (With panel : L, Without : H) 76PHONEIPHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or

38、more) 77FPM SW4I FPM mechanism position detect/ CD Mechanism detection terminal 2 (3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L) 78FPM SW1IFPM mechanism position detect terminal2 79FPM SW2IFPM mechanism position detect terminal2 80FPM SW3IFPM mechanism position detect termina

39、l2 81FPM PHOUTIFPM mechanism position detect terminal (2.2V or more : H)2 82S METERIS meter detection terminal 83NOISEIFM noise detection terminal 84IFC OUTIFront end IFC OUT input terminal (Receiving station : 2.5V or more) 85POWER DETIAudio power IC DC offset detection 86CD SW4I8cmDISC detection t

40、erminal (8cmDISC : L) 87R CLKIRDS decoder clock input terminal 88LX REQ SIReceive request from external slave unit (Request : L) 89SC REQICommunication request from panel microprocessor 90CD SW1ILOADING SW detection terminal (LOADING start, POWER OFF : L) 91CD SW2I12cmDISC detection terminal (12cmDI

41、SC, POWER OFF : L) 92R QUALIRDS decoder QUAL input terminal 93R DATAIRDS decoder DATA input terminal 94LX DATA SIData input from external slave unit 95LX DATA MOData output to external slave unit 96LX CLKI/OClock input/ output with external slave unit 97PAN RXIData input from panel microprocessor 98

42、PAN TXOData output to panel microprocessor 99WOW MODE1OWOW control terminal 100PLL CLKI/OClock input/ output to Tuner front-end1 MICROCOMPUTERS TERMINAL DESCRIPTION KDC-MP925/W8027 8 Fig.2 FPM motor control SLIDEFPM mechanism FPM MOTOR BFPM MOTOR Foperation LLStandby HLBackward operation LHForward o

43、peration HHBrake ANGLEFPM mechanism FPM MOTOR OFPM MOTOR Coperation LLStandby HLAngle open direction LHAngle close direction HHBrake Fig.1 WOW mode operation MODEWOW MODE1 WOW MODE2 WOW MODE3FOCUS BYPASSLLLDont care TuBassLHLDont care 3D-STEREOLLHDont care FOCUS LOWHLLL (Hi-Z) FOCUS HIHLLH WOW LOWHH

44、HL (Hi-Z) WOW HIHHHH MICROCOMPUTERS TERMINAL DESCRIPTION PANEL MICROPROCESSOR : 703132GJ011-A (X16-253 : IC1) Pin No.Pin NameI/ODescription / Processing Operation 17D14D8I/OExternal ROM data input/output terminal 83.3VDD-AVR 3.3V 9VSS-GND 1017D7D0I/OExternal ROM data input/output terminal 18FL GCP1O

45、FL bright control terminal 19SC REQOCommunication request to system microprocessor (H : Request) 20MC REQIRequest from system microprocessor (H : Request) 21SC CONIPanel microprocessor control (H : While operation) 22FL BLKODisplay control SW for FL driver (H : Display ON, L : Display OFF) 232.5V VD

46、D-AVR 2.5V 24VSS-GND 2527KS5KS3OKey scan output terminal 28,29TDI/TDO-NC 30,31KS2,1OKey scan output terminal 32TRSTINC 33ROTARY CCWIVolume input terminal 34ROTARY CWIVolume input terminal 35,36TMS/TCMONC 373.3VDD-AVR (3.3V) KDC-MP925/W8027 9 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.Pin NameI/ODesc

47、ription / Processing Operation 38VSS-GND 3942KI1KI4IKey return input terminal 43FLGCP2OFL bright control terminal 44NC-NC 45SYS TXIDATA input from system microprocessor 46SYS RXODATA output to system microprocessor 47FL CLK3OClock output to FL driver 48KI5IKey return input terminal (SRC, OPEN, EJECT

48、 interrupt port) 49FL DATA3ODATA output to FL driver 50SCK1IClock input from FL driver 51NC-NC 52FL DATA2ODATA output to FL driver 53CLK IN1IClock input from FL driver 54NC-NC 55FL DATA1ODATA output to FL driver 563.3VDD-AVR (3.3V) 57,58X2/X1-Main clock (5MHz) 5961CVSS/CKSEL/PSEL-GND 622.5V VDD-AVR

49、2.5V 63VSS-GND 64,65MODE0,1-GND 66PAN RSTIReset signal request form system microprocessor (L : Reset) 67VREF-Connect to 83PIN (VREF) 68,69NC-NC 70,71AVSS1,0-GND 72VREF-Connect to 83PIN (VREF) 73WAVE INIAudio signal input terminal 74F06ISpectrum analyzer input terminal (BPF 10KHz) 75F05ISpectrum analyzer input terminal (BPF 3.3KHz) 76F04ISpectrum analyzer input terminal (BPF 1KHz) 77F03ISpectrum analyzer input terminal (BPF 330Hz) 78F02ISpectrum analyzer input terminal (BPF 150Hz) 79F01ISpectrum analyzer input terminal (BPF 63Hz) 80NC-NC 812.5V VDD-AVR 2.5V 8