Kenwood-KDCW-4031-Service-Manual(2) 电路图 维修手册.pdf

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1、 2004-12 PRINTED IN JAPAN B53-0230-00 (N) 1813 CD RECEIVER KDC-W4031/Y KDC-W409/Y KDC-W431GY KDC-W4531/Y KDC-WF431A SERVICE MANUAL * Depends on the model. Refer to the parts list. PANEL ASSY KDC-W4031/Y (A64-3455-02) PANEL ASSY KDC-W409/Y (A64-3456-02) ANTENNA ADAPTOR (T90-0523-05) SPARE TDF PANEL M

2、AIN UNIT NAMETDF PARTS No.TDF NAME KDC-W4031/YY33-2140-60TDF-W4531 KDC-W409/YY33-2140-65TDF-W409 KDC-W431GYY33-2140-61TDF-W431GY KDC-W4531/YY33-2140-60TDF-W4531 KDC-WF431AY33-2140-63TDF-WF431 MENU /PTY VOL AUD FF SET UP SCANRDMREPF.SEL MENU VOL AUD FF SET UP SCANRDMREPF.SEL /PTY MENU VOL AUD FF SET

3、UP SCANRDMREPF.SEL VOL AUD FF SET UP MENUSCANRDMREPF.SELM.RDM External Media Control /PTY /PIY MENU VOL AUD FF SET UP SCANRDMREPF.SEL PANEL ASSY KDC-W431GY (A64-3457-02) PANEL ASSY KDC-W4531/Y (A64-3454-02) PANEL ASSY KDC-WF431A (A64-3466-02) MOUNTING HARDWARE ASSY (J21-9716-03) PLASTIC CABINET ASSY

4、 (A02-2736-03) DC CORD (E30-6413-05) LEVER (D10-4589-04) x2 * ESCUTCHEON (B07-xxxx-xx) This product uses Lead Free solder. RadioFans.CN 收音机爱 好者资料库 2 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A BLOCK DIAGRAM MECHA CD or MD CHANGER J2 E-VOL IC10 & AM AGC Q501 FM AGC L506 J4 TUNER IC11 E

5、2PROM SYSTEM u-COM IC1 IC7 RDS DECODER RST IC IC8 PRE MUTE Q351,352 IC4 POWER IC MUTE LOGIC IC6 SURGE DET BU DET ACC DET Q51 Q52 Q53 J1 PAN5V Q151 Q72,73 SERVO VFD REG IC15 POWER SUPPLY IC IC3 ED1 VFD with VFD DRIVER IC1 REMOTE IC3 VOL S11 KEY MATRIX DSI Q155 . . J6 SERVO A8V BU5V AUDIO OUT AM+B ANT

6、 MPX OUT MPX IN 800mV 1200mV AUDIO OUT BU5V A8V BACK-UP SP OUT BACK-UP ACC TEL MUTE P-ANT P-CON PAN5 SERVO P-ANT SW5V AM+B A8V BU5V P-CON SW5V AM+B AUDIO+B VCC ILLUMI BU5V ILLUMI PAN5VBU5V PRE OUT KEY :CHANGER CD/MD RECEIVER FM (E Type) FM (J/K Type) AM (J/K Type) AM (E Type) : : : : : 1800mV 1372mV

7、 600mV 855mV 3600mV 3600mV ELECTRIC UNIT (X34-) SWITCH UNIT (X16-) S7V A8V BU5V D5V A3.3V SW3.3V BU3.3V BU2.5V CD PLAYER UNIT (X32-5500-00) IC1 MECHANISM CONTROL Q8 APC Q9,10 SW IC4 4ch BTL DRIVER M M DM1 DM2 SPINDLE MOTOR LOADING MOTOR & SLED S1 S2 IC9 DAC 3.3V AVR Q3,5,6 S3 LEVEL SHIFT Q7 Q1,4 LEV

8、EL SHIFT MICROPROCESSOR AVR BU 3.3V IC6 DAC 3.3V AVR IC7 SW 3.3V AVR IC5 LEVEL SHIFT IC3 MP3/WMA DECODER IC2 PROCESSOR RF AMP/SERVO CD SIGNAL BUFFER IC8 FO COIL TR COIL (OPTICAL PICKUP) A C F B E DPU1 LD PD CN2 CN1 15 14 13 12 DGND DATA CLK MUTER MUTEL MSTOP MRST 10 LOS 20 19 18 17 16 1 A8V L AGND D

9、OUT R MOTOR LO/EJ 5 4 3 2 9 8 7 6 SGND S7V 12EJE LOE/LIM X2 16.00MHz 16.898MHz X1 OPEN D5 DGND D5 24 23 22 21 BU5 3 3 8 1 2 4 4 4 4 VREF SLD TRK FCS SPD 516 PON RadioFans.CN 收音机爱 好者资料库 3 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-3402-7x) Ref

10、. No.Application / FunctionOperation / Condition IC1SYSTEM -COMSystem control. IC3POWER SUPPLYDC5Vx2, 7.9Vx1, 8.1Vx1, 10.3V, P.CON, P-ANT output. IC4POWER ICAudio signal amplifier. IC6MUTE LOGICMute control. IC7RDS DECODERRDS decode. IC8RESET“L” when detection voltage goes below 3.6V. IC10E-VOL & TU

11、NERE-VOL, Tuner, Stereo decode. IC11E2PROMSaves and writes tuner adjustment data. IC15VFD REGULATOR11.3V output voltage for LED and VFD. Q51SERGE DET“ON” when the base goes “H”. Q52BU DET“ON” when the base goes “H”. Q53ACC DET“ON” when the base goes “H”. Q71SERVO+B CONTROL SW“ON” when the base goes

12、“H”. Q72,73SERVO+B AVROutput voltage level : 7.5V. Q74IC3 CONTROL SW“ON” when the base goes “H” (Output voltage : 10.3V). Q151PANEL 5V SW“ON” when the base goes “L”. Q155DSI ILLUMI SW“ON” when the base goes “L”. Q252IC4 STBY SW“ON” when the base goes “L”. Q330Q351, 352 MUTE DRIVER“ON” when the base

13、goes “L”. Q351Lch PRE MUTE SWPre-output is muted when the base goes “H”. Q352Rch PRE MUTE SWPre-output is muted when the base goes “H”. Q501AM RF AMPAdjusts for AM-RF gain. CD PLAYER UNIT (X32-5500-00) Ref. No.Application / FunctionOperation / Condition Focusing, tracking, sled and spindle servo pro

14、cessing. IC1 MECHANISM CONTROLAutomatic adjustment (Focusing, tracking, gain, offset and balance) operations. MICROPROCESSORDigital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data interpolation) operations, and microcomputer function. Generation of RF signal based on the si

15、gnals from the APC circuit and pickup, and IC2 RF AMP/SERVO CDgeneration of servo error (Focusing error and tracking error) signals. SIGNAL PROCESSORDetection of dropout, anti-shock, track crossing and off-track conditions, included gain control function during CD-RW. IC3MP3/WMA DECODER IC44ch BTL D

16、RIVER Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation. IC5SW 3.3V AVR IC6BU 3.3V AVR3.3V power supply for back-up. IC7BU 2.5V AVR2.5V power supply for back-up. RadioFans.CN 收音机爱 好者资料库 4 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A Ref

17、. No.Application / FunctionOperation / Condition IC8SELECTOR (SERIAL DATA)Serial audio data switch. IC9DAC 3.3V AVR3.3V power supply for IC2. Q1LEVEL SHIFT3.3V to 5.0V. Q37LEVEL SHIFT3.3V to 5.0V. Q8AUTOMATIC POWER CONTROLLD driver. Q9,10SWITCHSwitch for anticipation sub-beam delay. SWITCH UNIT (X16

18、-2932-7x) Ref. No.Application / FunctionOperation / Condition IC1VFD DRIVER IC3REMOTE SENSOR Q1GREEN LED SW“ON” when the base goes “H”. Q2RED LED SW“ON” when the base goes “H”. Q21PAN SW5V“ON” when the base goes “H”. COMPONENTS DESCRIPTION MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM -COM : IC1 on X34

19、- (ELECTRIC UNIT) Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 1DC ERRIDC offset detection input 2LINE MUTEIPhone detectionNAVI MUTE : Over 2.5V, TEL MUTE : Below 1V 3ROTARY CWIRotary encoder input 4AVSS- 5TUN TYPE1IE-VOL setting switchRefer to “TUN TYPE” on the TRUTH TABLE 6TUN T

20、YPE2IE-VOL setting switchRefer to “TUN TYPE” on the TRUTH TABLE 7AVREF1- 8VFD DATAFIData input from VFD driver 9VFD DATASOData output to VFD driver 10VFD CLKOClock output to VFD driver 5 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTERS TERMINAL DESCRIPTION Pin No. Active Pin

21、 NameI/OApplicationProcessing Operation (H/L) 11LVFD RSTOReset output to VFD driver Display OFF, Key reset, TDF panel OFF : L Display ON, Key scan : H 12VFD CEOChip enable output to VFD driver 13ROTARY CCWIRotary encoder input 14LTDF DETITDF panel detectionTDF panel OFF : H, TDF panel ON : L 15PWIC

22、BEEPOBeep output 16LX DATA SIData from slave unit 17LX DATA MOData to slave unit 18LX CLKI/OLX-BUS clock 19RDS AFSLOTuner RDS mute outputRefer to “RDS AFSL” on the TRUTH TABLE 20LTUN ADJIFor adjusting IC10 Adjustment=H, PS1-1,2=L, PS1-3=Hi-Z, PS2-1,2=Hi-Z, TUN DATA, CLK=Hi-Z 21TUN SDITuner search st

23、op outputH : Station exists, L : Station does not exist 22HLX RSTOHard reset to slave unitH : Reset, L : Normal condition 23HLX CONOStart-up request to slave unitH : Slave unit ON, L : Slave unit OFF 24LX REQ MOCommunication request to slave unit 25AUD SDAI/OVolume + tuner I2C data input and output

24、26AUD SCLI/OVolume + tuner I2C clock input and output 27HPWIC STBYOPower IC standby outputPower IC ON : H, Power IC OFF : L 28HVOL MUTEOE-VOL mute outputL : Mute OFF, Hi-Z : Mute ON 29LPWIC MUTEOPower IC mute outputPower OFF : L, Standby : L, Tel mute : L 30TUN FANC OUTOTuner block (inside the -com)

25、 checkOK : L, NG : H 31RESET2OMute for resetOutput L 32RDS DATAIRDS decoder data input 33VSS1- 34RDS QUALIRDS decoder QUAL input 35LACC DETIACC detectionACC exists : L, ACC does not exist : H 36LBU DETIMomentary power-down detection BU exists : L BU does not exist (Momentary power-down) : H 37NC- 38

26、PS2-2OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 39PS2-1OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 40PS1-1OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 41PS1-2OPower supply control outputRefer to “POWER IC CO

27、NTROL” on the TRUTH TABLE 42PS1-3OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 43,44NC- 45CD MUTEICD mute requestL : Mute request 46LCD MSTOPOCD mecha u-com stopH : mecha -com operates, L : mecha -com is stopped 47CD LOE LIM SWICD detection (chucking switch)H : Loading i

28、s finished, L : Disc does not exist 6 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 48CD LOEJI/OCD motor control Refer to “CD MECHA CONTROL OPERATION” on the TRUTH TABLE 49CD MOTOROCD motor control Refer to “CD MECHA CONTRO

29、L OPERATION” on the TRUTH TABLE 50NC- 51LCD MRSTOCD mecha -com resetH : Normal condition, L : Reset 52CD SCLI/OCD mecha I2C clock output 53CD DISC12 SWI12cm CD detection 54CD LOS SWICD loading detection 55CD SDAI/OCD mecha I2C data input and output 56OEM DISP CEI/OExternal display chip enableExterna

30、l display 57OEM DISP CLKI/OExternal display clockExternal display 58OEM DISP DATAI/OExternal display chip dataExternal display 59DSIODSI controlDSI ON : H, DSI OFF : L, TDF DET=H (DSI blinks) 60LRESETI 61NC- 62LPON FLOVFD power supply ON VFD ON : H, VFD OFF : L TDF DET H (DSI blinks) : L, TDF DET L

31、: H 63KEY REQICommunication request from VFD driverL : Key input 64RDS CLKIRDS decoder clock input 65REMOTEIRemote control input 66LX REQ SICommunication request from slave unit 67VSS0- 68VDD1- 69X2- 70X1- 71TEST- 72XT2- 73XT1- 74VDD0- 75AVDD- 7678TYPE 3TYPE 1IDestination switch 79RDS NOISEITuner qu

32、ality (Noise) input 80TUN SMETERITuner S-meter input MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTERS TERMINAL DESCRIPTION TRUTH TABLE TUN TYPE TYPE 1TYPE 2 General models commercially-designated as pure KENWOOD brand (Initial value) LL

33、Initial value setting RDS AFSL (AF search) High Normal condition communication (IC10 side : High) (Quality time constant long / Stereo Decoder PLL : Not hold) Low AF search (IC10 side : Middle) (Quality time constant short / Stereo Decoder PLL : Hold) POWER SUPPLY IC (IC3) CONTROL SEL1 (Pin No. 11)

34、PS1-2PS1-3PS2-1ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFOFF HLHONONOFF HHHONONON SEL2 (Pin No. 12) PS1-1PS2-2AUDIOSW5AM LLOFFOFFOFF HLONONOFF HHONONON CD MECHA CONTROL OPERATION CD LOEJCD MOTORCD MECHA OPERATION LHLoad HHEject Hi-ZLStop Hi-ZHBrake 8 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/W

35、F431A CD MECHANISM -COM : IC1 on X32- (CD PLAYER UNIT) Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 1VREFL-Reference power supply input terminal for ADC (L).GND 2AVSS-GND terminal for ADC.GND 3AVCC-Power supply terminal for ADC.Back-up 3.3V 4NC- 5L20RSTOReset control (Decoder).L :

36、 Reset, H : Normal condition 620ACKIAcknowledge signal input (Decoder). 720STBYOStandby control (Decoder).H : Standby, L : Normal condition 8,9NC- 1020INTIInterrupt signal input (Decoder). 11FOGUPIFocus gain-up interrupt.H : Focus gain-up, L : Normal condition 12LZMI0 bit mute detection (Lch).L : MU

37、TE OFF, H : MUTE ON 13RZMI0 bit mute detection (Rch).L : MUTE OFF, H : MUTE ON 14,15NC- 16L20CSOChip select signal output (Decoder). 17L20LPOLatch pulse signal output (Decoder). 1820TXD0I/OData output for serial data (Decoder).Input condition is kept except in output condition. 1920RXD0IData input f

38、or serial data (Decoder). 2020SCLK0OClock output for serial data (Decoder). 21DSPTXD1OData output for serial data (DSP). 22DSPRXD1IData input for serial data (DSP). 23DSPSCLK1OClock output for serial data (DSP). 24AM0-ROM mode selection terminal.H : Normal condition, L : External ROM mode 25DVCC-Bac

39、k-up 3.3V. 26X2OResonator terminal.16MHz 27DVSS-GND. 28X1IResonator terminal.16MHz 29AM1I“H” condition is fixed.Back-up 3.3V 30LRESETIReset detection.L : Reset, H : Normal condition 3134NC- 35LDSPSTBOData strobe signal output (DSP). 36DSPA0O Command/Parameter identification signal outputH : Paramete

40、r data output, (DSP).L : Command data output 37LDSPRSTOReset control (DSP). 38DSPINTIInterrupt signal input (DSP).H : Interrupt 39NC- 40SEARCHOSearch condition output.H : Search, L : Normal condition 41LOE/LIM SWILoading-end detection/Pick-up inner circumference detectionH : Inner circumference 4249

41、NC- MICROCOMPUTERS TERMINAL DESCRIPTION 9 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 50FLAGINIC2Err impossibility detection. L : Correction is possible. H : Correction is impossible. 5161NC- 62DVSS-GND. 63LNMIINon-maskab

42、le interrupt request. 64DVCC-Power supply terminal. 6577NC- 78NC/BOOTIMask : Not connected. Flash : For writing (Active “L”).L : Write, H : Nomal condition 79,80NC- 81POND3.3ODigital 3.3V power-on control terminal.H : POWER ON 82LMUTELOLch audio mute control. 83LMUTERORch audio mute control. 84SDAI/

43、OI2C data (Main -com). 85SCLI/OI2C clock (Main -com). 86LMSTOPIStand-by comeback interrupt.L : Stop, H : Stop is released. 87NC- 88LDMUTEODriver mute.L : MUTE ON, H : MUTE OFF 89DVCC-Power supply terminal. 90NC- 91DVSS-GND. 92,93NC-GND. 94MSELIMemory capacity switching terminal.H : Capacity size dow

44、n, L : Capacity size up 95NC-GND. 96ASELIAudio output polarity switch.H : Reverse output, L : Non-reverse output 97CHSELIChanger destination terminal.H : Changer, L : Other source 98SEL0I-com destination terminal 0. 99SEL1I-com destination terminal 1. 100VREFHIReference power supply input terminal f

45、or ADC (H).Back-up 3.3V MICROCOMPUTERS TERMINAL DESCRIPTION 10 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A TEST MODE How to enter the test mode While simultaneously press PRESET “1” key and PRESET “3” key, press “RESET” button. How to release the test mode Press “RESET” button. (The r

46、elease cannot be achieved in the conditions of POWER OFF and ACC OFF.) Initial conditions of the test mode The source is “STANDBY”. The displays all lit up. The volume is at 10dB (The display shows “30”.) LOUD is “OFF”. CRSC is “OFF”. SYSTEM Q is “NATURAL”. BEEP is sounded at all time with the key d

47、epressed for less than 1 second. Special displays when all indicator lights are lighted When “PRESET” keys are pressed while all indicators for the STANDBY sources are lighted, the following displays will ap- pear. PRESET Version display (8 digits : month, date, hour, minute) “1” key(Display) : x x

48、x x x x x x PRESET Serial number display (8 digits) “2” key(Display) : x x x x x x x x PRESET When pressed for less than 1 second : POWER ON “3” keytime display (STANDBY source time is not counted.) (Display) : PON x x x x xMAX 60,000 (hours) * The display is cleared by pressing the key for more tha

49、n 2 seconds. PRESET When pressed for less than 1 second : CD operation “4” keytime display (Display) : PLY x x x x xMAX 60,000 (hours) * The display is cleared by pressing the key for more than 2 seconds. PRESET When pressed for less than 1 second : CD EJECT “5” keynumber display (Display) : EJC x x x x xMAX 60,000 (times) * The display is cleared by pressing the key for more than 2 seconds. PRESET When pressed for less than 1 second : Panel open/ “6” keyclose number display (Display) : PNL x x x x xMAX 600,000 (times) * The display is cleared by