Kenwood-KDC-4022-Service-Manual(2) 电路图 维修手册.pdf

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1、KDC-4022 OFF NF - + DAB F.SELM.RDMREPSCANRDM AUD C.S. MENU NAME.S DISP AUTO AME Front glass (B10-4303-01 : KDC-422) (B10-4326-01 : KDC-4022) Panel assy (A64-2823-02 : KDC-422 ) (A64-2853-02 : KDC-4022) KDC-6023 OFF NF - + DAB F.SELM.RDMREPSCANRDM AUD MENU NAME.S DISP AUTO GSM Front glass (B10-4309-0

2、1 : KDC-6023) Panel assy (A64-2832-02 : KDC-6023) Escutcheon (B07-3022-02) Plastic cabinet assy (A02-1486-13) Mounting hardware assy (J21-9716-03) Screw set (N99-1730-15) Lever (D10-4589-04) Depends on model. Refer to the parts list. DC cord (E30-4940-05) Remote controller assy(RC-505) (A70-2040-05)

3、 Screw set (N99-1719-15) Not supplied Remote controller assy(RC-410) (A70-2026-05) 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 (24PIN) : W05-0934-00 2003-1 PRINTED IN JAPAN B53-0023-00 (N)1

4、724 CD RECEIVER KDC-4022 KDC-422 KDC-6023 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 KDC-4022/422/6023 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

5、 EJECT ILLUMI DSI 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+BS

6、W 14V Q21 IC9 OPEL 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 RE

7、Q C CH CLK CH-CON 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 P

8、S2-2 RST FREE REAR 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-4022/422/6023 3 G CD PLAYER UNIT (X32-5400-00) COMPONENTS DESCRIPTION Ref.No.Component NameApplication/FunctionsOperatio

9、n/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 conditions, incl

10、uded 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 correction, audi

11、o 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. Q22SA1362(Y)D.

12、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. D2

13、MA8051-LZener diodeDAC AVR/LPF reference voltage (A.5V). D3DA204UCurrent driverCurrent driver. G ELECTRIC UNIT (X25-9800-11/12/21) Ref.No.Component NameApplication/FunctionsOperation/Condition/Compatibility IC1UPD703030GC013System microcomputerControl for TUNER unit, CD mechanism, volume & tone, LCD

14、 driver and external CD changer unit IC2TDA7411Electronic 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 ICAmplifier for audio signa

15、l to derive for 4channel speakers (50W maximum for each channel). IC6HD74HC27FPMuting control ICControl for timing for mute. IC8PST3436ULReset ICWhen detection voltage goes below 3.5V or less Reset IC output change to L signal. Q12SC4081Serge detectionWhen backup voltage become more than 24V output

16、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 detectionWhen ACC voltage supplied output is L. Q42SA1036KSW

17、5VWhen base voltage is L Q4 is ON. Q212SD2375AVRServo regulator. Q22UMC2NSWServo SW. Q23UMC2NIC controlPower supply IC controller. Q31UN5213Dimmer controlWhen base voltage is H dimmer is ON. 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

18、.0V-Illumination, AM ON RadioFans.CN 收音机爱 好者资料库 KDC-4022/422/6023 4 COMPONENTS DESCRIPTION Ref.No.Component NameApplication/FunctionsOperation/Condition/Compatibility Q151UN5114DSI driverWhen base voltage level is L DSI LED is light up / When base voltage level is H DSI LED turns off / When panel as

19、sy is pull off, cut off the supply to panel 5V AVR. Q1522SA1576APanel 5V SWWhen panel assy attached to the unit, Q152 base goes L and supply to panel 5V AVR to panel assy . Q153UN5213Illumination controlWhen Q153 base voltage to H, illumination is light up. Q1542SA1577Illumination controlWhen Q153 b

20、ase voltage to H, illumination is light up. Q201UN5216Buffer ampNoise buffer amp. Q350UN5112Pre & NF mute SWWhen base voltage to L, drive to pre & NF mute SW(Q351,355,357). Q351UN5216Pre mute SWWhen base voltage to H, muting to the pre Lch or NF Lch line. Q352UN5216Pre mute SWWhen base voltage to H,

21、 muting to the pre Rch or NF Rch line. Q354UN5112Pre & NF mute SWWhen base voltage to L, drive to pre & NF mute SW(Q32,356,358). Q355UN5216Pre mute SWWhen base voltage to H, muting to the front Lch line. Q356UN5216Pre mute SWWhen base voltage to H, muting to the front Rch line. G SWITCH UNIT (X16-20

22、20-10/12) Ref.No.Component NameApplication/FunctionsOperation/Condition/Compatibility IC1LC75808WLCD driverDrive for LCD unit. IC2PNA4S22MRemote control ICReceiving for the remote control unit. Q12SC4081VLCD AVRWhen base voltage level goes 7.9V Q1 is ON. Q2DTA114EUARemo. ON SWWhen base voltage level

23、 goes L the power supply IC2 is turned ON. Q32SC4081key illumination SWLights up for green key illumination when base voltage level goes H. Q42SC4081key illumination SWLights up for red key illumination when base voltage level goes H. Q52SC4081Dimmer control SWLights up for LCD back light when base

24、voltage level goes H. KDC-4022/422/6023 5 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.NameI/ODescription/Processing Operation 1PLL CLKOCLK output terminal to Front End 2N.C-Open 3PANEL DETIPanel assy detect terminal ( Panel assy come off : L) 4IC2 SDAI/OControl Data input / output terminal for electr

25、ic volume, CD mechanism 5IC2 SCLOClock DATA output terminal for electric volume, CD mechanism 6VDD-Power supply input terminal (BU 5V) 7VSS-GND 8FLIP-DETIPanel assy open detect terminal (panel close : L ) 9BEEPOBeep audio signal output terminal 10REMOI Remote control signal input terminal 11R QUALI

26、RDS decoder QUAL signal input terminal 12R DATAI RDS decoder Data signal input terminal 13L CEOCE output for LCD driver IC 14VILL DATAOVariable illumination DATA out put terminal for D/A converter 15VILL CLKOValuable illumination CLK out put terminal for D/A converter 16DSIODisc guide illumination c

27、ontrol terminal 17DIM CONODimmer control terminal 18TEST-Test terminal 19ILL CONOIllumination control terminal 20VOL AIVolume key input terminal 21VOL BIVolume key input terminal 22MOSWOCD mechanism motor IC control output terminal (Loading,eject ,brake :L ) 23LO/EJOCD mechanism loading / eject cont

28、rol terminal 24M STOPORequest signal (Mechanism is STOP) output to CD mechanism (active L) 25M RSTOReset signal output to CD mechanism (active L) 26MUTEOMuting signal output terminal 27LOE/LIM SWIDown SW detection from CD mechanism 28M-MUTE LIRequest for muting signal from CD mechanism (Mute request

29、 : L ) 29M-MUTE RIRequest for muting signal from CD mechanism (Mute request : L ) 30PANEL 5VOControl for Panel5V AVR 31RESETIReset terminal (Active : L ) 32XT1ISub clock input terminal (32.768KHz) 33XT2ISub clock input terminal (32.768KHz) 34REGC-Regulator output terminal 35X2IMain clock input termi

30、nal (20MHz) 36X1IMain clock input terminal (20MHz) 37VSS-GND 38VDD-Power supply input terminal (BU 5V) 39NC-Open 40IC2 TYPE1IElectric volume condition setting terminal 41IC2 TYPE0IElectric volume condition setting terminal 42TYPE2IDestination setting terminal 43TYPE1IDestination setting terminal 44T

31、YPE0IDestination setting terminal 45CD MECHA+BOAVR control for CD mechanism ( For MP3 AVR ON :L ) 46SW 5VOControl terminal for SW5V AVR (ON : L , OFF : Hi-Z) 47PS2-0OPower supply IC control terminal 48PS2-1OPower supply IC control terminal 49PS1-0OPower supply IC control terminal 50PS1-1OPower suppl

32、y IC control terminal G IC1: ELECTORIC UNIT (X25-9800-11/12/21) KDC-4022/422/6023 6 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.NameI/ODescription/Processing Operation 51PS1-2OPower supply IC control terminal 52B.U-DETIBU detect input terminal ( BU detect : L ) 53ACC-DETIACC detection input terminal

33、(ACC detect : L) 54DIMMERIIllumination detect terminal from CAR (illumination ON : L ) 55BVDD-Power supply input terminal (BU 5V) 56BVSS-Open 57EXT AMP CONOEXT. amp control terminal (Active H) 58SVROSVR control for Audio power IC 59P-MUTEOMuting control for Audio power IC 60P-STBYOSTBY control for A

34、udio power IC (Power IC ON : H ) 61NC-Open 62PRE MUTE RORch pre mute output terminal (Active H) 63PRE MUTE LOLch pre mute output terminal (Active H) 64TUNERONoise detection (FM seek,AM search : L ) 65O-DATAODATA signal output for EXT. display (Handling for OPEL display) 66O-CLKOCLK signal output for

35、 EXT. display (Handling for OPEL display) 67O-CEOCE signal output for EXT. display (Handling for OPEL display) 68LX-RSTOReset signal output to EXT. unit 69LX-CONOControl signal output to EXT. unit (ON : H , OFF : L) 70AVCONTOControl for A/D reference voltage 71AVDD-Power supply input terminal (BU 5V

36、) 72AVSS-Open 73AVREFIA/Dereference voltage input terminal 74PHONEIMobil phone detection input terminal 7581 NC-GND 82S-METERIS meter detection input terminal 83NOISEIFM noise detection input terminal 84IFC-OUTIIFC OUT input terminal 85LX-MUTEIRequest signal input terminal from EXT.unit (Mute ON : L

37、 ) 86LX-REQ-MORequest signal output terminal to EXT.unit (Request : L) 87R-CLKIRDS decoder CLK input terminal 88LX-REQ-SIRequest signal input terminal from EXT.unit (Request : L) 89KEY-REQIRequest for communicate from LCD driver IC (KEY input : L ) 90LO.S SWILoading start SW detection input terminal

38、 (Loading start : L ) 9112EJE SWI12cm CD disc eject SW detection input terminal (12cm disc : L ) 92EJECTIEject detection terminal (KEY input : L) 938EJE SWI8cm CD disc eject SW detection input terminal (Not used) 94LX-DATA-SIDATA signal input from EXT. unit 95LX-DATA-MODATA signal output to EXT. uni

39、t 96LX-CLKI/OCLK signal input/output to EXT. unit 97L DATALIDATA input terminal from LCD deriver IC 98L DATASODATA output terminal to LCD driver IC 99L CLKOCLK output terminal to LCD driver IC 100PLL DATAI/OData input / out put terminal to Front-end KDC-4022/422/6023 7 TEST MODE 1. How to enter the

40、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 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

41、 30) Loudness: OFF CRSC: OFF regardless of the presence of switching function. SYSTEM Q: Flat. Aux: ON Display color: white (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 ba

42、d condition. TNE2P NG: The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through 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

43、 should switch K3I from AUTO Forced Wide Forced Middle Forced Narrow AUTO. The initial status is AUTO and the display shows 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 r

44、eset start operation. When the unit is reset while a CD is loaded in it, the CD is not recognized by resetting. Each press 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 Do

45、wn key jumps to the previous track number to the track being played. When the number of total tracks of an MP3 disc is nine 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 o

46、f the Q key initiates the audio adjustment mode. Pressing the key on the remote initiates the audio ad- justment mode. Continuous 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 adjust

47、ed 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 / 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 adjuste

48、d in 2 steps of Through/120Hz with the Track Up/down keys (default is through). Bass f, Bass Q, Bass EXT, Middle f, Middle 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 t

49、he remote initiates the Menu mode. Continuous holding of a remote control key is inhibited. Contrast is adjusted press of 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-4022/422/6023 8 TEST MODE 10. Special display when the display is all on Pressing the Preset keys while the power is ALL OFF