Kenwood-KDCMP-825-Service-Manual(2) 电路图 维修手册.pdf

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1、 2004-02 PRINTED IN JAPAN B53-0130-00 (N) 2704 CD RECEIVER KDC-8026 KDC-MP825 KDC-MPV8025 KDC-W7027 SERVICE MANUAL CD mechanism extension cord (24PIN) : W05-0935-00 TDF PANEL INFORMATION MODEL PARTS NO. PANEL NAME KDC-8026 KDC-MP825 KDC-MPV8025 KDC-W7027 Y33-1790-61 TDF-M7000 *Size AA Battery (Not S

2、upplied) 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) Lever (D10-4674-04) x 2 *Screw set (N99-1723-05) * DC cord (E30-6294-05) (E30-6295-05) *Remote controller assy (A70-20

3、40-05) : RC-505 * Depends on model. Refer to the parts list. Panel assy KDC-8026 (A64-3231-01) Panel assy KDC-MPV8025 (A64-3228-01) Panel assy KDC-W7027 (A64-3223-01) Panel assy KDC-MP825 (A64-3229-01) RadioFans.CN 收音机爱 好者资料库 2 KDC-8026/MP825 KDC-MPV8025/W7027 TUNER CD CH MECHA PANEL TDF UNIT SWITCH

4、 UNIT (X16-208) (X16-256) (X34- ) (X16-254) DISPLAY UNIT (X16-255) 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

5、MUTE PRE MUTE PRE OUT (FRONT) PRE OUT (REAR) (SUB WOOFER) 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

6、 14V 5V SERVO FL+B SW REG A8V PANEL Q1,2 Q3,601 Q502,503 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 EEP

7、ROM EEP5V Q501 IC1 Q23,24 Q26 Q25 IC18 Q27 Q29 IC10 Q6,10 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

8、.CN 收音机爱 好者资料库 3 KDC-8026/MP825 KDC-MPV8025/W7027 SUB CIRCUIT UNIT (X16-2080-10) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1E2PROME2PROM for security DISPLAY UNIT (X16-2540-10) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1DriverLCD driver (Includ

9、e KEY input function) IC2DriverLCD driver IC3Remote control ICFor Remote control sensor Q1SWKey scan start SW “ON” when Q1 base level goes L Q2Red LED SWRed LED is turned on when Q2 base level goes H Q5VLCD AVRReference voltage Q6SWPower supply control SW “ON” when base level goes L Q11Dimmer contro

10、lLCD back light control “OFF” when Q11 base level goes L D26VLCD AVRReference voltage DISPLAY UNIT (X16-2550-10) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1DriverLCD driver (Include KEY input function) IC2DriverLCD driver IC3Remote control ICFor Remote control sensor IC4D

11、/A converterFor Variable illumination control Q1SWKey scan start SW ON when Q1 base level goes L Q2Red LED SWRed LED is turned on when Q2 base level goes H Q5,D26VLCD AVRReference voltage Q6SWPower supply control SW ON when base level goes L Q11-16Illumination controlVariable illumination control tr

12、ansistor Q62-64Illumination controlVariable illumination control transistor SWITCH UNIT (X16-2560-11) Ref No.Application / FunctionsOperation / Condition / Compatibility Q1DSI LED SWDSI LED blinks when Q1 base level goes H/L Q2KEY Illumination SW (Green)KEY Illumination SW “ON” when the Q2 base leve

13、l 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 (X32-5540-00) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1Mechanism control micropro

14、cessor- 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 COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 4 KDC-8026/MP825 KDC-MPV8025/W7027 Ref No.Application / Functions

15、Operation / Condition / Compatibility IC7AVRBU2.5V AVR IC8Selector ICSerial audio data selector IC9AVR3.3V AVR (IC2 DAC part) Q1,4Level shift FETLevel shift (3.3V - 5.0V) Q3,5Level shift TRLevel shift (3.3V - 5.0V) Q6Level shift TRLevel shift (3.3V - 5.0V) Q7Level shift TRLevel shift (3.3V - 5.0V) Q

16、8APCAuto power control Q9,10Switching TRSub beam delay control switch ELECTRIC UNIT (X34-3040-10/11/21, X34-3042-71) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1System control ICSystem control microprocessor IC2E-VOL & tuner ICE-VOL. FM/AM tuner & stereo decoder IC3Power s

17、upply ICFor A8V AVR IC4Audio power ICAudio power amplifier IC5Power supply ICSwitching regulator IC for CD5V IC7Reset ICWhen BU5V line voltage is less than 3.5V, this IC output line is “L” IC8Muting logic ICControl for MUTE, P-ANT & RESET muting IC12RDS decoderDecode for RDS signal IC13,14Motor driv

18、erControl for Panel mechanism motor Q1,2BU 5V AVRWhile BU is applied when BU5V regulator output is +5V Q3SW5V AVRWhen Q3base level goes L, SW5V regulator output is +5V Q4,5SW14V AVRWhen Q5 base level goes H, SW14V regulator output is +14V Q6-8Audio 8V AVRWhen Q6 base level goes H, A8V regulator outp

19、ut is +8.4V Q9,34Servo +B AVRWhen Q34 base level goes H, S+B regulator output is +7.4V Q1114Illumination +B AVRWhen Q11 base level goes H, AVR output is +10.5V Q23,24P-ANT SWWhen Q23 base level goes H, P-ANT SW output is +14V Q25,26P-CON SWWhen Q26 base level goes H, P-CPN SW output is +14V Q27,28P-

20、CON protectionProtect Q27 by turning on when P-CON output is grounded Q29BufferEX amp control buffer Q30Small lamp det. SWWhen Q30 base level goes H, Q30 turned ON Q32BU detectorWhen Q32 base level goes H, Q32 turned ON Q33ACC detectorWhen Q33 base level goes H, Q33 turned ON Q51,52Muting driverWhen

21、 base level goes L, muting driver is turned ON Q55,56,59,60Pre-out muting SWWhen base level goes H, Pre-output is muted Q63E2P 5V SWWhen Q63 base level goes L, E2P 5V is out for E2P ROM Q102,103AM +B SWWhen Q102 base level goes H, AM +B is out to tuner unit Q104BufferComposite signal buffer for RDS

22、COMPONENTS DESCRIPTION 5 KDC-8026/MP825 KDC-MPV8025/W7027 SYSTEM MICROPROCESSOR : UPD703030GC042 (X34-304 : 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

23、 : H with RDS,RBDS model) 4PAN E2P DATAI/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) 9BEEPOBE

24、EP audio output terminal 10REMOIRemote control 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

25、, ROM correction CLOCK line 15P STBYOAudio 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) 17DIMMER CONTODimmer control terminal (W-LED only : Pulse control F=1KHz, Normal : H) 18TEST-NC (GND) 19TYPE2I

26、Destination select terminal 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 Backup, Momentary power dropped : H, Backup : L) 24ACC DETIACC detect

27、ion terminal (With ACC : L, Without ACC : H) 25SW5VI/OSW5V control terminal (OFF : H, ON : L) 26EXT AMP CONTOExternal amplifier control terminal 27DIMMERISmall lamp detection terminal (ON : L, OFF : H) 28ANT CONTI/OAntenna control/ Destination select terminal (TUNER ON : H) 29P ONI/OSW14V, SW5V cont

28、rol 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 35,36X2/X1-Main clock (20MHz) 37VSS-GND 38VDD-AVR 5V 39CLKOUT-NC 40LX REQ MOCommunication req

29、uest to external slave unit (Request : L) 41LX MUTEIMute request from external slave unit (MUTE : H) MICROCOMPUTERS TERMINAL DESCRIPTION 6 KDC-8026/MP825 KDC-MPV8025/W7027 Pin No.Pin NameI/ODescription / Processing Operation 42LX CONOExternal slave unit (ON : H, OFF : L) 43LX RSTOReset output to ext

30、ernal slave unit (Normal : L, After 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 49NC-NC 50E2P5VI/OE2PROM, D/A converter power supply con

31、trol terminal (ON : L, OFF : Hi-Z) 51DSII/ODSI control (ON : L, OFF : Hi-Z) 52L CEOCE output to LCD driver IC 53L INHOINN output to LCD driver IC (Normal : H, Reset, Momentary power dropped : L) 54VOL AIVolume input terminal 55DVDD-AVR 5V 56DVSS-GND 57VOL BIVolume input terminal 58M RSTOReset output

32、 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 loading/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H) 62MOSWOCD mechanism motor driver SW (LOADING, EJ

33、ECT, Brake : H) 63FPM MOTOR BOFPM mechanism (Slider) control terminal1 64FPM MOTOR FOFPM mechanism (Slider) control terminal1 65FPM MOTOR OOFPM mechanism (Angle) control terminal1 66FPM MOTOR COFPM mechanism (Angle) control terminal1 67O DATAI/OExternal display DATA terminal1 68O CLKI/OExternal disp

34、lay CLK terminal 69O CEI/OExternal display chip enable terminal 70M MUTERIMute 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

35、) 76PHONEIPHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more) 77FPM SW4I FPM mechanism position detect/ CD Mechanism detection terminal 1 (3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L) 78FPM SW1IFPM mechanism position detect terminal1 79FPM SW2IFPM mech

36、anism position detect terminal1 80FPM SW3IFPM mechanism position detect terminal1 81FPM PHOUTIFPM mechanism position detect terminal (2.2V or more : H)1 82S METERIS meter detection terminal MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-8026/MP825 KDC-MPV8025/W7027 Pin No.Pin NameI/ODescription / Process

37、ing Operation 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 terminal (8cmDISC : L) 87R CLKIRDS decoder clock input terminal 88LX REQ SIReceive request from ex

38、ternal slave unit (Request : L) 89SC REQICommunication request from panel microprocessor 90CD SW1ILOADING SW detection terminal (LOADING start, POWER OFF : L) 91CD SW2I12cmDISC detection terminal (12cmDISC, POWER OFF : L) 92R QUALIRDS decoder QUAL input terminal 93R DATAIRDS decoder DATA input termi

39、nal 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 97L DATALIData input from LCD driver 98L DATASOData output to LCD driver 99L CLKOCLK output to LCD driver 100PLL CLKI/OClock input/ output to Tun

40、er front-end Fig.1 FPM motor control SLIDEFPM mechanism FPM MOTOR BFPM MOTOR Foperation LLStandby HLBackward operation LHForward operation HHBrake ANGLEFPM mechanism FPM MOTOR OFPM MOTOR Coperation LLStandby HLAngle open direction LHAngle close direction HHBrake MICROCOMPUTERS TERMINAL DESCRIPTION M

41、ECHANISM CONTROL MICROPROCESSOR : 91CW12AFG-4VF6 (X32-554 : IC1) Pin No.Pin NameI/ODescription / Processing Operation 1VREFLIReference voltage input terminal 2AVSS-GND for ADC 3AVCC-Power supply for ADC (BU3.3V) 4NCONC (OPEN) 520RSTOReset control output terminal (for decoder) L : RESET, H : NORMAL 6

42、20ACKIAcknowledge signal input terminal (for decoder) 720STBYOStandby control (for decoder) H : STAND BY, L : NORMAL 8,9NCONC (OPEN) 1020INTIInterrupt signal input terminal (for decoder) 11FOGUPIInterrupt for focus gain up control signal H : Focus gain UP, L : NORMAL 8 KDC-8026/MP825 KDC-MPV8025/W70

43、27 Pin No.Pin NameI/ODescription / Processing Operation 12LZMI0bit muting detect (Lch) L : MUTE OFF, H : MUTE ON 13RZMI0bit muting detect (Rch) L : MUTE OFF, H : MUTE ON 14,15NCONC 1620CSOChip select signal output terminal (for decoder) 1720LPOLatch pules signal output terminal (for decoder) 1820TXD

44、0I/OSerial data signal output terminal (for decoder) 1920RXD0ISerial data signal input terminal (for decoder) 2020SCLK0OSerial data clock output terminal (for decoder) 21DSPTXD1OSerial data signal output terminal (for DSP) 22DSPRXD1ISerial data signal input terminal (for DSP) 23DSPSCLK1OSerial data

45、clock output terminal (for DSP) 24AM0ISelect for ROM mode H : NORMAL, L : External ROM mode 25DVCC-BU3.3V 26X2OOscillator (16MHz) 27DVSS-GND 28X1IOscillator (16MHz) 29AM1IBU3.3V 30RESETIReset terminal L : RESET, H : NORMAL 31,32NCONC 33,34EMU0,1ONC 35DSPSTBOData strobe signal output terminal 36DSPA0

46、OCommand, parameter select signal H : Parameter, L : Command 37DSPRSTOReset control output terminal (for DSP) 38DSPINTIInterrupt signal input terminal (for DSP) H : Interrupt 39/DAC RESETOReset signal output terminal (for DSP) L : RESET, H : NORMAL 40SEARCHOSearch condition output terminal H : Searc

47、h, L : NORMAL 41LOE/LIM_SWISLT SW detect input terminal H : Inside 4245NCONC (OPEN) 46PONE5O+5V AVR control terminal (for VIDEO) H : Power ON 47PONE2.5O+2.5V AVR control terminal (for VIDEO) H : Power ON 48,49NCONC (OPEN) 50FLAGINIC2 error detect terminal L : Correction OK, H : Correction NG 5160NCO

48、NC (OPEN) 61/DAC PDOReset control output terminal (for DAC) L : RESET, H : NORMAL 62DVSS-GND 63NMIIRequest for non maskable interrupt signal input terminal 64DVCC-+VCC 65DAC MUTEOMuting control output terminal (for DAC) H : MUTE, L : MUTE OFF 66DAC PONOAudio power supply (for DXM-6550) H : POWER ON

49、67PONA5O+5V Audio power supply (for DXM-6550) H : POWER ON MICROCOMPUTERS TERMINAL DESCRIPTION 9 KDC-8026/MP825 KDC-MPV8025/W7027 Pin No.Pin NameI/ODescription / Processing Operation 68ESRSTOReset signal output terminal (for ES3890) L : RESET, H : NORMAL 69VMUTEOVideo mute control terminal H : MUTE ON, L : MUTE OFF 70NCONC (OPEN) 71SELINTOVideo/Audio select output terminal H : NORMAL, L : Interrupt 72ASEL0OAudio signal output select control terminal 1 00 : STEREO, 01 : Lch 73ASEL1OAudio signal output select control terminal 1 10