Kenwood-KDCX-979-Service-Manual(2) 电路图 维修手册.pdf

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1、 2004-02 PRINTED IN JAPAN B53-0132-00 (N) 2704 CD RECEIVER KDC-9026R KDC-PSW9527 KDC-W9027 KDC-X979 SERVICE MANUAL KDC-9026RKDC-PSW9527 KDC-X979 KDC-W9027 TDF PANEL INFORMATION MODEL PARTS NO. PANEL NAME KDC-9026R KDC-PSW9527 Y33-1790-60 TDF-M9000 KDC-X979 KDC-W9027 Y33-1790-61 TDF-M7000 *Size AA Ba

2、ttery (Not Supplied) * Escutcheon (B07-3078-01) (B07-3079-01) 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) *Remote controlle

3、r assy (A70-2040-05) : RC-505 *Remote controller assy (A70-2026-05) : RC-420 * Depends on model. Refer to the parts list. Panel assy KDC-9026R (A64-3236-11) Panel assy KDC-W9027 (A64-3238-01) Panel assy KDC-PSW9527 (A64-3237-11) Panel assy KDC-X979 (A64-3235-11) RadioFans.CN 收音机爱 好者资料库 KDC-9026R/PSW

4、9527 KDC-W9027/X979 2 BLOCK DIAGRAM S-METER AUDIO OUT 8V BU5V CD5V BACK UP FM AM CD QUAL CH BU5V KEY BU5V 8V 8V SW5V BPF 9V 9V 9V 9V SW5V FL+B FAC AGC BU5V BU5V SERVO ILL+ SW5V SW5V SERVO ILL+ 8V 3.3V 8V8V 8V SW5V PANEL5V RDS DECODER BUFFER REMO RESET SW KEY MATRIX FL SYSTEM MPX E-VOL & ACC DET TEL

5、MUTE B.U DET 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 PRE MUTE PRE 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

6、ANT-CONANT CON P-CONP CON WIRED REMO/ OPEL DISP I/F IC9 IC13 IC12 IC11 Q207,208 Q205,206 Q203,204 BU5V SW 5V SW 14V SERVO FL+B SW REG A8V Q1,2 Q3,601 Q4,5 Q6-8 Q9,602 BU5V SW5V SW14V DC/DCA8V CD5V IC16 MOTOR DRDR MOTOR IC15 DC/DC ROTARY ENCODER IC7 LEVEL SHIFT LEVEL SHIFT IC8 u-COM IC11 IC2 MASK ROM

7、 2.5V ROM FLASH IC4 BPF PANEL SW5V IC6 3.3V SW3.3V Q5 FL+B Q4 FL3.3V Q2,3 E2PROM IC1 IC10 Q6,10 Q11-14 IC19 LEDLED E2PROM MICROPROCESSOR SHIFT LEVEL L.P.F DSP3.3V x2 BAS S L.P.FL.P.FL.P.F DSP 1/2VCC SRAM Q29 Q27 Q26 Q25 IC18 Q23,24 (CENTER) IC10 TUNER CD CH MECHA PANEL TDF UNIT SWITCH UNIT (X16-208)

8、 (X16-256) (X34- ) (X16-253) DISPLAY UNIT ELECTRIC UNIT RadioFans.CN 收音机爱 好者资料库 KDC-9026R/PSW9527 KDC-W9027/X979 3 BLOCK DIAGRAM SUB CIRCUIT UNIT (X16-2080-10) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1E2PROME2PROM for security DISPLAY UNIT (X16-2530-10/11) Ref No.Applic

9、ation / FunctionsOperation / Condition / Compatibility IC1Panel microprocessorPanel control microprocessor IC2ROM ICGraphic ROM IC3Flash ROM ICFor Display customize memory IC IC4AVRFor 3.3V power supply IC5AVRFor 2.5V power supply IC6Buffer ICLevel shift buffer IC (5V3.3V) IC7Buffer ICLevel shift bu

10、ffer 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 +3.3V Q22.5V RegulatorWhile PAN5V is applied when 2.5V regulator output is +2.5V Q3,4FL +B SWFL +B

11、(VDD1) is turned on when Q3 base level goes H COMPONENTS DESCRIPTION CD PLAYER UNIT VREF D.GND BU.+5.0V LOE SW 8EJE/LOS 12EJE SW LOS SWD.GND S.+5.0V EJECT LOAD S.GND D.GND D.GND PON S.GND DATA MUTE R MUTE L MSTOP MRST CLK A.GND A+8V R-ch L-ch D.GND D.GND S.GND S.GND D.GND D.GND D.GND SW EF A C B TR

12、COIL FO COIL APC IC7 Q8 16.898MHz CLOCK IC6 LPF IC10 SW Q7 A3.3V IC9 LOADING MOTOR SLED MOTOR DM2 REG MICRO- (CD MECHANISM CONTROL) PROCESSOR IC5 CLOCK 4.00MHz RF AMP/ SERVO MP3 DECODER/ WMA DECODER/ 1Mbit SRAM PROCESSOR/ REG D3.3V IC4 16Mbit DRAM PWM 4CH DRIVER MOTOR DRIVER IC1 MOTOR SPINDLE DM3 AS

13、SY LIM SW DM1 SPINDLE MOTOR D3.3V REG IC2 TR IC8 S2 S4 S5 S1 S3 OPTICAL PICKUP (X32-5520-00) BOARD MAIN DPU1 : 1.6V REG. RadioFans.CN 收音机爱 好者资料库 KDC-9026R/PSW9527 KDC-W9027/X979 4 Ref No.Application / FunctionsOperation / Condition / Compatibility Q53.3V SWSW3.3V is turned on when Q5 base level goes

14、 L Q6,200FL 3.3V SWFL +3.3V (VDD1) is turned on when Q200 base level goes H Q7,8Remote control ON SWThe power 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 Q10Display blackout LED SWGreen LED is turned on when Q10 base level goes H Q1

15、1Red 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 when Q1 base level goes H/L Q2KEY Illumination SW (Green)KEY Illumination SW “ON” when the Q2 base level goes H Q3KEY Il

16、lumination 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 (X32-5520-00) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1Motor driverLoading & Eject motor driver IC

17、2AVRBU3.3V AVR IC4AVRSW3.3V AVR (When CNTL is goes H, IC3 is actives) IC5Mechanism control micro processor- IC6PWM driverFocus, Tracking coil, Feed and Spindle motor driver IC IC7DSPCD signal processor, RF amp, Servo control, MP3 & WMA decoder IC8EDO DRAMDate buffer (16MB) IC9AVRAudio 3.3V AVR (When

18、 P-ON level goes H, Q12, 13 are turned ON) IC10LPFAudio LPF Q1Switching TRWhen MRST goes L, Q1 is turned ON Q2Switching TRWhen Q1 goes ON, Q2 is turned ON Q6Switching TRWhen Q7 goes ON, Q6 is turned ON Q7Switching TRWhen P-On goes H, Q7 is turned ON Q8APCAuto power control & A 5V constant current ci

19、rcuit Q9Driver1.6V AVR driver Q10Switching TRLoading & Eject motor drive voltage selector Q11Switching TRGuarantee of proper operation for between ICs Low level voltage Q12Switching TRWhen Q13 base level goes H, Q12 is turned ON Q13Switching TRWhen P-On goes H, Q13 is turned ON ELECTRIC UNIT (X34-30

20、50-11/21, X34-3052-71/72) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1System control ICSystem control microprocessor IC2E-VOL & tuner ICE-VOL. FM/AM tuner & stereo decoder IC3Power supply ICFor A8V AVR IC4Audio power ICAudio power amplifier IC7Power supply IC-9V AVR (For 4

21、.5V Pre-out) IC8Reset ICWhen BU5V line voltage is less 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 COMPONENTS DESCRIPTION KDC-9026R/PSW9527 KDC-W902

22、7/X979 5 Ref No.Application / FunctionsOperation / Condition / Compatibility IC15,16Motor driverControl for Panel mechanism motor IC18P-CON ICPower control IC IC19Power supply ICSwitching regulator IC for CD4.7V IC20Analog SWLogic IC for muting control Q1,2BU 5V AVRWhile BU is applied when BU5V regu

23、lator 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 AVRWhen Q6 base level goes H, A8V regulator output is +8.3V Q9,602Servo +B AVRWhen Q602 base level goes H, S+B regulator outpu

24、t 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 & -9V AVR Q18, 19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to OP AMP for Pre-out Q2022Pre Amp

25、& +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 Q25BufferEX amp control buffer Q26Small lamp det. SWWhen Q26 base level goes H, Q26 turned ON Q27BU detectorWhen Q27 base

26、 level goes H, Q27 turned ON Q29ACC detectorWhen Q29 base level goes H, Q29 turned ON Q30,31Muting driverWhen base level goes L, muting driver is turned ON Q32,33Surge DET.When Q32 base level goes H, Q32, 33 are turned ON Q34Muting driverWhen Q34 base level goes L, muting driver is turned ON Q201Buf

27、ferNoise 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 Q303,304AM +B SWWhen Q303 base level goes H, AM +B is out to tuner unit ELECTRIC UNIT (X34-3060-1

28、0, X34-3062-71) Ref No.Application / FunctionsOperation / Condition / Compatibility IC1OP AMPBuffer amp for ADC input (DSP Lch) IC2OP AMPBuffer amp for ADC input (DSP Rch) IC3OP AMPLPF for DAC output (DSP Front) IC4OP AMPLPF for DAC output (DSP Rear) IC5OP AMPLPF for DAC output (DSP Sub & Center) IC

29、6OP AMPSub output amp IC7Analog SWBus management SW (Dolby prologic II) IC8OP AMPBus management accumulator (Dolby prologic II) IC9OP AMPReference AVR IC10DSPAudio DSP (24bit 2ch ADC & 6ch DAC) IC11SRAMFor DSP IC12Buffer ICLevel shift buffer IC(5V3.3V) IC13AVRD 3.3V AVR (For DSP) IC14AVRA 3.3V AVR (

30、For DSP) Q1AVR3.3V regulator Q2AVR3.3V regulator COMPONENTS DESCRIPTION KDC-9026R/PSW9527 KDC-W9027/X979 6 SYSTEM MICROPROCESSOR : 703030YGCJ07-A (X34-305 : IC1) Pin No.Pin NameI/ODescription / Processing OperationFig. 1CD SDAI/OCD mechanism, IC2, IC5, ROM correction DATA line 2TUN SCLI/OClock input

31、/ output to Tuner front-end 3RDS AFS MI/ORDS control for MPX PLL hold 4NC-NC 5CD SCLI/OCD mechanism, IC2, IC5, ROM correction CLOCK line 6EVDD-VDD 5V 7EVSS-GND 8RDS AFS LI/ORDS control for MPX PLL hold 9PWIC BEEPOBEEP audio output terminal 10REMOIRemote control input terminal 11BMSOPL2 BMS control t

32、erminal (H : BMS ON, L : BMS OFF) 12DSP RQODSP chip select output terminal ( L : Active) 13DSP SIODSP serial data output terminal 14DSP CLKODSP serial data clock output terminal 15DSP CODEC RSTOReset for DSP (AD/DA & DSP, L : RESET) 16DSP INT RSTOReset for DSP (System reset, L : RESET) 17DSP MUTEODS

33、P input muting control (L : Mute ON, H : Mute OFF) 18TEST-NC (GND) 19PWIC MUTEOAudio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L) 20P STBYOAudio power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L) 21P CONI/OPower control terminal (POWER ON : H, POWER OFF, A

34、LL OFF : Hi-Z) 22DIAGIOver voltage/Over current detection terminal (Normal : H, Bad condition : L) 23MUTEOMuting control terminal (ON : OPEN, OFF : L) 24MUTE PRE ROPREOUT (Rch) muting control terminal 25MUTE PRE LOPREOUT (Lch) muting control terminal 26EXT AMP CONTOExternal amplifier control termina

35、l 27BU DETIMomentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L) 28ACC DETIACC detection terminal (With ACC : L, Without ACC : H) 29ILLUMI DETISmall lamp detection terminal (ON : L, OFF : H) 30ANT CONT (TYPE2)I/OAntenna control/ Destination select terminal (

36、TUNER ON : H) 31RESETIReset input terminal 32,33XT1/XT2-Sub clock (32.768kHz) 34REGC-Connect to 1u capacitor 35,36X2/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 :

37、H) MICROCOMPUTERS TERMINAL DESCRIPTION KDC-9026R/PSW9527 KDC-W9027/X979 7 Pin No.Pin NameI/ODescription / Processing OperationFig. 42LX CONOExternal slave unit (ON : H, OFF : L) 43LX RSTOReset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L) 44P ONI/OSW14V,

38、 SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z) 45PON ILLI/OFL, illumination control terminal (ON : H, OFF : Hi-Z) 46PON CDOCD5V output terminal (CD : H, Except CD source : L) 47FAC1OFAC motor driver control terminal (Pulls cycle 16ms) 48NC-NC 49,50TYPE0/TYPE1IDestination select terminal 51P

39、ON PANOPanel 5V control terminal (ON : H, Momentary power dropped : Hi-Z) 52DSII/ODSI control (ON : L, OFF : Hi-Z) 53MC REQOCommunication request to panel microprocessor 54PAN RSTOReset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L) 55DVDD-AVR 5V 56DVSS-GND 57SC CONO

40、Panel microprocessor control terminal (POWER OFF, ACC OFF : L) 58CD MRSTOReset output to CD mechanism (Normal : H, Reset : L) 59CD MSTOPOStop request to CD mechanism (STOP : L, CD : H) 60CD LOE SWICD DOWN SW detection terminal (CD disc chucking : H) 61CD EJECTOCD mechanism loading/ eject control 62C

41、D LOADOCD mechanism loading/ eject control 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 67OPEL DATAI/OExternal display DATA ter

42、minal 68OPEL CLKI/OExternal display CLK terminal 69OPEL CEI/OExternal display chip enable terminal 70CD MUTE RIMute request from CD mechanism (Rch ON : L) 71AVDD-AVR 5V 72AVSS-GND 73AVREFIConnect to P-ON(45PIN) 74CD MUTE LIMute request from CD mechanism (Lch ON : L) 75PAN DETIPANEL, E2PROM detection

43、 terminal (With panel : L, Without : H) 76LINE MUTEIPHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more) 77FPM SW4I FPM mechanism position detect/ CD Mechanism detection terminal (3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L) 1 78FPM SW1IFPM mechanism po

44、sition detect terminal1 79FPM SW2IFPM mechanism position detect terminal1 80FPM SW3IFPM mechanism position detect terminal1 81FPM PHOUTIFPM mechanism position detect terminal (2.2V or more : H)1 MICROCOMPUTERS TERMINAL DESCRIPTION KDC-9026R/PSW9527 KDC-W9027/X979 8 Pin No.Pin NameI/ODescription / Pr

45、ocessing OperationFig. 82TUN SMETERIS meter detection terminal 83RDS NOISEIFM noise detection terminal 84TUN IFC OUTIFront end IFC OUT input terminal (Receiving station : 2.5V or more) 85PWIC DC DETIAudio power IC DC offset detection (H : OK, L : ERROR) 86CD 8EJEI8cmDISC detection terminal (8cmDISC

46、: L) 87RDS CLKIRDS decoder clock input terminal 88LX REQ SIReceive request from external slave unit (Request : L) 89SC REQICommunication request from panel microprocessor 90CD LOS SWILOADING SW detection terminal (LOADING start, POWER OFF : L) 91CD 12EJEI12cmDISC detection terminal (12cmDISC, POWER

47、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 98PAN TXODa

48、ta output to panel microprocessor 99PON AMI/OAM+B (AM operation : H) 100TUN SDAI/OClock input/ output to Tuner 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 Coper

49、ation LLStandby HLAngle open direction LHAngle close direction HHBrake MICROCOMPUTERS TERMINAL DESCRIPTION KDC-9026R/PSW9527 KDC-W9027/X979 9 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 GCP1OFL bright control terminal 19SC REQOCommunication request to system microprocessor (H : Request) 20MC REQIRequest from system microprocessor (H : Request) 21SC CONIPanel micr