Kenwood-KDC-5024-Y-Service-Manual(2) 电路图 维修手册.pdf

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1、KDC-3022 OFF - + M.RDM REPSCANRDM AUD C.S. MENU NAME.S DISP AUTO AME KDC-5023 OFF - + DAB M.RDMREPSCANRDM AUD PTY MENU NAME.S DISPAUTO AME KDC-5024 OFF - + DAB M.RDM REPSCANRDM AUD PTY MENU NAME.S DISP TI KDC-507 OFF - + DAB M.RDMREPSCANRDM AUD PTY MENU NAME.S DISPTI Escutcheon (B07-3022-02) (B07-30

2、83-02) (B07-3089-02) Plastic cabinet assy (A02-1486-13) Mounting hardware assy (J21-9716-03) DC cord (E30-4790-05) (E30-6134-05) Antenna adaptor (T90-0523-05) Screw set (N99-1730-15) Lever (D10-4589-04) DC cord (E30-4784-05) (E30-6131-05) Remote controller assy(RC-505) (A70-2040-05) Screw set (N99-1

3、719-05) Not supplied Panel assy (A64-2824-02 : KDC-3022) (A64-2825-02 : KDC-322) Front grass (B10-4304-01 : KDC-3022) (B10-4305-01 : KDC-322) Panel assy (A64-2838-02 : KDC-5024/Y) (A64-2851-02 : KDC-5024V/YV) Front grass (B10-4314-01 : KDC-5024/Y) (B10-4324-01 : KDC-5024V/YV) Panel assy (A64-2833-02

4、 : KDC-5023R) (A64-2834-02 : KDC-5023) Front grass (B10-4310-01 : KDC-5023R) (B10-4311-01 : KDC-5023) Panel assy (A64-2839-02 : KDC-5094RY) (A64-2842-02 : KDC-507) Front grass (B10-4315-01 : KDC-5094RY) (B10-4317-01 : KDC-507) Remote controller assy(RC-410) (A70-2025-05) Depends on model. Refer to t

5、he parts list. CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual. Please refer to service manual for X92-4450-0X (B51-7889-00). CD mechanism extension cord (22PIN) : W05-0618-00 2003-1 PRINTED IN JAPAN B53-0024-00 (N)3379 CD RECEIVER KDC-3022, 322 KDC-5023/R, 5024/V/Y/YV KDC-507, 5094R

6、Y SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY 2 BLOCK DIAGRAM BUFFER Q101 RDS DECODER IC7 Q201 BUFFER EEPROM IC10 IC1 (V-ILL ONLY) DA CONVERTER IC3 IC2 REMOCON RESET SW ENCODER ROTARY S24 WITH LCD DRIVER KEY MATRIX IC1 LCD PANEL DET S1 EJECT SW S1 EJECT ILLUMI D

7、SI u-COM IC2 MPX E-VOL & EXT AMP DIMMER ACC DET TEL MUTE B.U DET PRE MUTE PRE MUTE PRE MUTE DRIVER MUTE IC6 POWER IC IC4 THERMAL PROTECT PRE OUT (REAR/NF) EXT.AMP.CON DIMMER ACC TEL MUTE BACK UP AUX IN (REAR) 3PRE PRE OUT (FRONT) PRE OUT SP OUT SURGE DET SW REGCD MECHA+B SERVOSERVO+BSW 14V Q21 IC9 O

8、PEL DISP I/F WIRED REMO/ SUPPLY IC IC3 POWER ANT DET P CON RESET IC8 SW 5V Q4 PANEL 5V Q152 SW5V S-METER AUDIO OUT IFC OUT PLL-DATA PLL-CLK SW5V AM+B A8V SW3 SW2 SW1 MS CLK MS DATA M MUTE L SW4 M MUTE R LO/EJ M STOP MOSW M RST SERVO+B A8V BU5V CD MECHA+B DATA C CH MUTE CH RST REQ H REQ C CH CLK CH-C

9、ON DATA H BUCK UP NOISE QUAL S-METER R DATA R CLK FM AM MP IN LEVEL CD QUAL AFS CH SW5V SW5V BU5V PANEL DET EJECT DSI L CLK L DATAS L CE L DATAL VOL A VOL B REMO V DATA V CLK O-CE O-DATA O-CLK PRE MUTE MUTE P-MUTE EXT.AMP.CON DIMMER PHONE ACC DET B.U DET BEEP PS1-0 PS1-1 PS1-2 PS2-0 PS2-2 RST FREE R

10、EAR FRONT BU5V BUCK UP A8V AUX SW5V BACK UP AM+B FM+B ILLUMI A8V BU5V BU5V BU5V TUNER CD EX.CH SWITCH UNIT (X16- ) DAUGHTER UNIT (X89- ) RadioFans.CN 收音机爱 好者资料库 KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY 3 G CD PLAYER UNIT (X32-5390-00/01) COMPONENTS DESCRIPTION Ref.No.Component NameApplication/Func

11、tionsOperation/Condition/Compatibility IC1AN22002AARF amplifier adapted for CD-RWGeneration of RF signal based on the signals from the APC circuit and pickup, and generation of servo error (focusing error and tracking error) signals. Detection of dropout, anti-shock, track crossing and off-track con

12、ditions, included gain control function during CD-RW. IC2MN6627771KPCD signal processor built-in MI-COMFocusing, tracking, sled and spindle servo processing. Automatic adjustment (focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes, CIRC error cor

13、rection, audio data Interpol ration) operations, and Microcomputer function. IC3BA5824FP4CH BTL driverFocusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation. IC4NJM4580M1Low pass filter2nd low pass filter for audio signals Q1MCH6101APCLD power control Q22

14、SA1362(Y)D.5V SWWhen P ON signal goseL, Q2 is ON Q3DTC124EUAQ4 SWWhen P ON signal goseL(SW+5V AVR is ON), Q3 is ON Q4DTA143XUAA.8V SWWhen P ON signal goseL(Q3 is ON), Q4 is ON Q52SC4081Current driverCurrent driver Q62SA1576ACurrent driverCurrent driver D1DAN202UProtection diodeLaser diode protection

15、 D2MA8051-LZener diodeDAC AVR/LPF reference voltage (A.5V) D3DA204UCurrent driverCurrent driver G ELECTRIC UNIT (X25-9580-xx/2232-xx) Ref.No.Component NameApplication/FunctionsOperation/Condition/Compatibility IC1M30302MC-5W3FPSystem microcomputerControl for TUNER unit, CD mechanism, volume & tone,

16、LCD driver and M30302MC-1N4FPexternal CD changer unit IC2TDA7407DElectronic volume & N.C.MPXControl for source selector, volume & tone, and FM multiplex detector. IC3BA4911-V4Power supply ICPower supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con) IC4TA8273HAudio power amp ICAmplifie

17、r for audio signal to derive for 4channel speakers (50W maximum for each channel) IC6HD74HC27FPMuting control ICControl for timing for mute IC7SAA6581TRDS decoderDecode for RDS signal IC8PST3435ULReset ICWhen detection voltage goes below 3.5V or less Reset IC output change to L signal Q12SC4081Serge

18、 detectionWhen backup voltage become more than 24V output is L (momentary power down) / When backup voltage become less than 24V output is H Q22SC4081Backup detectionWhen BU voltage supplied output is L / When BU voltage not supplied or momentary power down is detected output is H Q32SC4081ACC detec

19、tionWhen ACC voltage supplied output is L Q42SA1036KSW 5VWhen base voltage is L Q4 is ON Q212SD2375AVRServo regulator Q22UMC2NSWServo SW Q23UMC2NIC controlPower supply IC controller Q101KRC410Buffer ampCOMPOSITE SIGNAL BUFFER Q151DTA114YUADSI driverWhen base voltage level is L DSI LED is light up /

20、When base voltage level is H DSI LED turns off / When panel assy is pull off, cut off the supply to panel 5V AVR. SW1OUT 1.5-3.0VAudio ON 3.5-5.0VAudio, P-con ON 7.0V-Audio, P-con, P-ant ON SW2 2.0-3.0VIllumination, FM ON 4.0V-Illumination, AM ON RadioFans.CN 收音机爱 好者资料库 KDC-3022,322,5023/R,5024/V/Y/

21、YV,507,5094RY 4 COMPONENTS DESCRIPTION Ref.No.Component NameApplication/FunctionsOperation/Condition/Compatibility Q1522SA1576APanel 5V SWWhen panel assy attached to the unit, Q152 base gose L and supply to panel 5V AVR to panel assy Q153KRC404Illumination controlWhen Q153 base voltage to H, illumin

22、ation is light up Q1542SA1577Illumination controlWhen Q153 base voltage to H, illumination is light up Q201KRC410Buffer ampNoise buffer amp Q351KRC410Pre mute SWWhen base voltage to H, muting to the rear Lch line Q352KRC410Pre mute SWWhen base voltage to H, muting to the rear Rch line Q354KRA303Pre

23、mute SWWhen base voltage to L, drive to pre mute SW(Q351,352,355,356) Q355KRC410Pre mute SWWhen base voltage to H, muting to the front Lch line Q356KRC410Pre mute SWWhen base voltage to H, muting to the front Rch line G SWITCH UNIT (X16-203x-xx/2032-xx) Ref.No.Component NameApplication/FunctionsOper

24、ation/Condition/Compatibility IC1NJU6535LCD driverDrive for LCD unit IC2PNA4S22MRemote control ICReceiving for the remote control unit Q1,Q4DTA114EUARemo.on SWWhen base voltage level goes L the power supply IC2 is turned ON Q22SC4081Key illumination SWLights up for green key illumination when base v

25、oltage level goes H Q32SC4081Key illumination SWLights up for red key illumination when base voltage level goes H KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY 5 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.NameI/ODescription/Processing Operation 1-5N.C-Open 6REMOIRemote control signal input terminal 7N.

26、C-Open 8BYTEIEXT. bus width select input terminal (GND) 9CNVSS-Pull down to GND 10XCINISub clock input terminal (32.768KHz) 11XCOUTOSub clock output terminal (32.768KHz) 12RESETIReset terminal (Active : L ) 13XOUTOMain clock output terminal (10MHz) 14VSS-GND 15XINI Main clock input terminal (10MHz)

27、16VCC-Power supply input terminal (BU 5V) 17NMI-Pull up to BU5V 18EJECTIEject detection terminal (Active L) 19R-CLKIRDS decoder clock input terminal 20LX-REQ SIEXT. unit request signal input terminal (Request L) 21ILL CONOIllumination control terminal 22PANEL 5VOControl for Panel5V AVR (Active L) 23

28、VOL AIVolume key input terminal 24VOL BIVolume key input terminal 25LOE/LIM SWICD mechanism down sw detect input terminal (Disc clamp : H) 26BEEPOBeep audio signal output terminal 27M STOPORequest signal (Mechanism is STOP) output to CD mechanism (active L) 28MOSWOCD mechanism motor control output t

29、erminal (Loading, eject ,brake : H) 29PLL-CLKOSystem clock put to Front-end 30PLL-DATAI/0Data input / out put to Front-end 31LX-DATA MOEXT. unit Data output to EXT.unit 32LX-DATA SIEXT. unit Data input from EXT.unit 33LX-CLKI/OEXT.unit Clock input/output terminal 34LX-REQ MOEXT unit Request output t

30、erminal (Request L) 35L DATASODATA output terminal to LCD driver IC 36L DATALIDATA input terminal from LCD driver IC 37L CLKOCLK output terminal to LCD driver IC 38FLIP-DETIPanel assy open detect terminal (panel close : L ) 39L CEOCE output for LCD driver IC 40LO/LEI/OCD mechanism loading / eject co

31、ntrol terminal 41EPMIFlash memory control terminal (pull down to GND, 100K) 42M RSTOReset signal output to CD mechanism (active L) 43M-MUTE RIRequest to muting signal(R ch) from Mechanism ( Mute on : L ) 4412EJE SWI12cm CD disc eject SW detection input terminal (12cm disc : L ) 45M-MUTE LIRequest to

32、 muting signal (L ch) from Mechanism ( Mute on : L ) 46LX-CONOEXT.unit select control terminal (Active H) 47LO.S SWILoading start SW detection input terminal (Loading start : L ) 48DSIIDisc guide illumination control terminal (Lighting on : L) 49PANEL DETIPanel assy detect terminal (Panel assy come

33、off : L) 50N.C-Open G IC1: ELECTRIC UNIT (X25-9580-xx/2232-xx) KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY 6 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.NameI/ODescription/Processing Operation 51IFC OUTIIFC OUT input terminal 52R-DATAIRDS decoder data input terminal 53R-QUALIRDS decoder QUAL input ter

34、minal 54N.C-Open 55AFSONoise detection (FM seek, AM search : L ) 56SDAI/OControl Data input / output terminal for electric volume, CD mechanism 57SCLOClock DATA output terminal for electric volume, CD mechanism 58MUTEOMuting control terminal ( to IC2) 59N.C-Open 60,61IC2 TYPE0/1IMarket/Genuine model

35、 setting terminal 62VCC-Power supply input terminal (BU 5V) 63N.C-Open 64VSS-GND 65-67TYPE0-2IDestination setting terminal 68N.C-Open 69SVROPower IC SVR control terminal (Power off : L) 70S-STBYOPower IC standby control terminal (Power IC on : H) 71P-MUTEOPower IC standby muting control terminal (Po

36、wer mute/all off/TEL mute : L) 72SW5VOSW5V on/off control terminal ( SW5V ON : L) 73B.U DETIBU detect input terminal ( BU detect : L ) 74ACC-DETIACC detection input terminal (ACC detect : L) 75N.C-Open 75-80PS1-0/1/2,PS2-0/1OPower supply IC control terminal 81LX-MUTEIMuting signal request for EXT.un

37、it ( Muting ON : L) 82-88N.C-Open 89KEY-REQIRequest for communicate from LCD driver IC (KEY input : L ) 90-92N.C-Open 93S-METERIS meter voltage detection input terminal 94NOISEIFM noise detection input terminal 95N.C-Open 96AVSS-GND 97PHONEIMobil phone detection input terminal 98VREF-Ref. voltage in

38、put terminal 99AVCC-Power supply input terminal (BU 5V) 100REFCONOVERF control terminal (Power ON : H) KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY 7 TEST MODE 1. How to enter the test mode While holding the preset 1 key and 3 keys, reset the unit. 2. How to exit from the test mode Reset the unit, ACC

39、 OFF, power OFF, and come off the front panel assy for the unit. 3. Initial status in the test mode Sources: All OFF. Display: All segments were lit. Volume: -10 dB (displayed as 30) Loudness: OFF CRSC: OFF regardless of the presence of switching function. SYSTEM Q: Flat. Aux: ON Display color: whit

40、e (variable color display model only) Beep sound: ON 4. Special display in Tuner mode When any of the following messages is displayed in Tuner mode, the Front-end (F/E) may be bad condition. TNE2P NG: The EEPROM is set to the default (unstable values) because the F/E was shipped without passing thro

41、ugh the adjustment process, etc. TNCON NG: Communication with the F/E to micro- processor is not possible. 5. Forced switching of K3I Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO Forced Wide Forced Middle Forced Narrow AUTO. The initial status is AUTO and the display show

42、s these modes as follows. AUTO : FMA Forced Wide: FMW Forced Middle : FMM Forced Narrow : FMN 6. Test mode specifications of the CD receiver Forced ejection is inhibited in the reset start operation. When the unit is reset while a CD is loaded in it, the CD is not recognized by resetting. Each press

43、 of the Track Up key jumps to the following track numbers: No. 9 No. 15 No. 10 No. 11 No. 12 No. 13 No. 22 No. 14 No. 9 (The cycle restarts from here.) Each press of the Track Down key jumps to the previous track number to the track being played. When the number of total tracks of an MP3 disc is nin

44、e or less, unit playback from a track 1. When the media to CD-DA, unit playback from track No.28 by key operation of preset 1 key. 7. Audio-related specifications A short press of the Q key initiates the audio adjustment mode. Pressing the key on the remote initiates the audio ad- justment mode. Con

45、tinuous holding of a remote control key is inhibited. Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 / +8 with the Track Up/down keys (default is 0). Balance is adjusted in 3 steps of Left L15 / 0 / R15 Max with the Track Up/down keys (default is 0). Fader is adjusted in 3 steps of Rear15

46、 / 0 / F15 Max with the Track Up/down keys (default is 0). HPF is adjusted in 2 steps of Through/170Hz (or 200Hz) with the Track Up/down keys (default is through). LPF is adjusted in 2 steps of Through/120Hz with the Track Up/down keys (default is through). Bass f, Bass Q, Bass EXT, Middle f, Middle

47、 Q and Treble f are not dealt with by the audio adjustment. 8. Menu-related specifications A short press of the PLAY/PAUSE key initiates the Menu mode. Pressing the DNPP key on the remote initiates the Menu mode. Continuous holding of a remote control key is inhibited. Contrast is adjusted press of

48、the Track up/down key in 3 steps of 0 / 5 / 10 (default is 5). 9. Backup current measurement When the unit is reset while ACC is OFF (i.e. by turning Backup ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. (The CD mechanism is not activated at this time.) KDC-3022,322,5023/R,5024/

49、V/Y/YV,507,5094RY 8 TEST MODE 10. Special display when the display is all on Pressing the Preset keys while the power is ALL OFF dis- plays the following information. 11. Change the condition of TUNER channel space selection (K/M type only) While holding the preset 1 key and 5 keys, reset the unit. Security-related information 1. Forced Power ON mode (All models) Even when the security is approved, resetting the unit while holding the Q and Preset 4 keys makes it possible to turn the power ON fo