Kenwood-KDCX-469-Service-Manual电路原理图.pdf

《Kenwood-KDCX-469-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Kenwood-KDCX-469-Service-Manual电路原理图.pdf（32页珍藏版）》请在收音机爱好者资料库上搜索。

1、KDC-X469OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDC.S.MENUNAME.SDISPAUTOAME Front glass(B10-4307-01 : KDC-X469)Panel assy(A64-2827-02 : KDC-X469)KDC-6024OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDPTYMENUNAME.SDISPTIGSM Front glass(B10-4313-01 : KDC-6024/6024Y)Panel assy(A64-2837-02 : KDC-6024/6024Y )Escutcheon(B07

2、-3022-02)(B07-3075-02) Plastic cabinet assy(A02-1486-13)Mounting hardware assy(J21-9716-03)DC cord(E30-4944-05)(E30-4958-05)Antenna adaptor(T90-0523-05)Screw set(N99-1730-15)Lever(D10-4589-04)Depends on model. Refer to the parts list.DC cord(E30-4939-05)Remote controller assy(RC-505)(A70-2040-05)Scr

3、ew set(N99-1719-15)Not suppliedCD 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 JAPANB53-0026-00 (N)3114CD RECEIVERKDC-6024/YKDC-X469SERVICE MANUALKDC-6024/

4、Y/X4692BLOCK DIAGRAMBUFFERQ101RDSDECODERIC7Q201BUFFEREEPROMIC10IC1(V-ILL ONLY)DA CONVERTERIC3IC2REMOCONRESET SWENCODERROTARYS24WITHLCD DRIVERKEY MATRIXIC1LCDPANEL DETS1EJECT SWS1EJECT ILLUMIDSIu-COMIC2MPXE-VOL&EXT AMPDIMMERACC DETTEL MUTEB.U DETPRE MUTEPRE MUTEPRE MUTEDRIVERMUTEIC6POWERICIC4THERMALP

5、ROTECTPRE OUT(REAR/NF)EXT.AMP.CONDIMMERACCTEL MUTEBACK UPAUX IN(REAR) 3PREPRE OUT(FRONT)PRE OUTSP OUTSURGE DETSW REGCD MECHA+BSERVOSERVO+B SW 14VQ21IC9OPEL DISP I/FWIRED REMO/SUPPLYICIC3POWER ANT DETP CONRESETIC8SW 5VQ4PANEL 5VQ152SW5VS-METERAUDIO OUTIFC OUTPLL-DATAPLL-CLKSW5VAM+BA8VSW3SW2SW1MS CLKM

6、S DATAM MUTE LSW4M MUTE RLO/EJM STOPMOSWM RSTSERVO+BA8VBU5VCD MECHA+BDATA CCH MUTECH RSTREQ HREQ CCH CLKCH-CONDATA HBUCK UPNOISEQUALS-METERRDATAR CLKFMAMMP INLEVELCDQUALAFSCHSW5VSW5VBU5VPANEL DETEJECT DSI L CLKLDATASL CE LDATALVOL AVOL BREMO VDATAV CLK O-CEO-DATAO-CLKPRE MUTEMUTEP-MUTEEXT.AMP.CONDIM

7、MERPHONEACC DETB.U DETBEEPPS1-0PS1-1PS1-2PS2-0PS2-2RSTFREEREARFRONTBU5VBUCK UPA8VAUXSW5VBACK UPAM+BFM+BILLUMIA8VBU5VBU5VBU5VTUNERCDEX.CHSWITCH UNIT (X16- )DAUGHTER UNIT(X89- )KDC-6024/Y/X4693COMPONENTS DESCRIPTIONa71 CD PLAYER UNIT (X32-5200-00)Ref.No. Component Name Application/Functions Operation/

8、Condition/CompatibilityIC1 AN22002AA RF amplifier adapted for CD-RW Generation 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

9、uded gain control function during CD-RW.IC2 MN6627774KH2 CD signal processor built-in MI-COM Focusing, 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, a

10、udio data Interpol ration) operations, and Microcomputer function.IC4 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation.IC6 NJM4580M1 Low pass filter 2nd low pass filter for audio signalsQ1 MCH6101 APC LD power controlQ2 DTC12

11、4EUA D.5V SW When P ON signal gose“L“, Q2 is ONQ3 DTA143XUA Q4 SW When P ON signal gose“L“ (SW+5V AVR is ON), Q3 is ONQ4 2SA1362(Y) A.8V SW When P ON signal gose“L“ (Q3 is ON), Q4 is OND1 DAN202U Protection diode Laser diode protectionD2 MA8051-L Zener diode DAC AVR/LPF reference voltage (A.5V)D3 DA

12、204U Current driver Current drivera71 ELECTRIC UNIT (X25-9712-71/9800-10/9802-71)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 UPD703030GC013 System microcomputer Control for TUNER unit, CD mechanism, volume & tone, LCD driver and external CD changer unitIC2 TDA74

13、11 Electronic volume & N.C.MPX Control for source selector, volume & tone, and FM multiplex detector.IC3 BA4911-V4 Power supply IC Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con).IC4 TA8273H Audio power amp IC Amplifier for audio signal to derive for 4channel speakers (50W

14、maximum for each channel).IC6 HD74HC27FP Muting control IC Control for timing for mute.IC7 SAA6581T RDS decoder Decode for RDS signal.IC8 PST3436UL Reset IC When detection voltage goes below 3.5V or less Reset IC output change to “L“ signal.Q1 2SC4081 Serge detection When backup voltage become more

15、than 24V output is “L“ (momentary power down) / When backup voltage become less than 24V output is “H“.Q2 2SC4081 Backup detection When BU voltage supplied output is “L“ / When BU voltage not supplied or momentary power down is detected output is “H“.Q3 2SC4081 ACC detection When ACC voltage supplie

16、d output is “L“.Q4 2SA1036K SW 5V When base voltage is “L“ Q4 is ON. Q21 2SD2375 AVR Servo regulator.Q22 UMC2N SW Servo SW.Q23 UMC2N IC control Power supply IC controller.Q31 UN5213 Dimmer control When base voltage is “H“ dimmer is ON. Q32 DTA123JK EXT. AMP control Control to EXE.AMP for pulse width

17、 signal. SW1 OUT1.5-3.0V Audio ON3.5-5.0V Audio, P-con ON7.0V- Audio, P-con, P-ant ONSW22.0-3.0V Illumination, FM ON4.0V- Illumination, AM ONKDC-6024/Y/X4694COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/Condition/CompatibilityQ101 UN5216 Buffer amp COMPOSITE SIGNAL BUF

18、FER.Q151 UN5114 DSI driver When base voltage level is “L“ DSI LED is light up / When base voltage level is “H“ DSI LED turns off / When panel assy is pull off, cut off the supply to panel 5V AVR. Q152 2SA1576A Panel 5V SW When panel assy attached to the unit, Q152 base goes “L“ and supply to panel 5

19、V AVR to panel assy .Q153 UN5213 Illumination control When Q153 base voltage to “H“, illumination is light up.Q154 2SA1577 Illumination control When Q153 base voltage to “H“, illumination is light up.Q201 UN5216 Buffer amp Noise buffer amp.Q350 UN5112 Pre & NF mute SW When base voltage to “L“, drive

20、 to pre & NF mute SW(Q351,355,357).Q351 UN5216 Pre mute SW When base voltage to “H“, muting to the pre Lch or NF Lch line.Q352 UN5216 Pre mute SW When base voltage to “H“, muting to the pre Rch or NF Rch line.Q354 UN5112 Pre & NF mute SW When base voltage to “L“, drive to pre & NF mute SW(Q32,356,35

21、8).Q355 UN5216 Pre mute SW When base voltage to “H“, muting to the front Lch line.Q356 UN5216 Pre mute SW When base voltage to “H“, muting to the front Rch line.Q357 UN5216 Pre mute SW When base voltage to “H“, muting to the rear Lch line.Q358 UN5216 Pre mute SW When base voltage to “H“, muting to t

22、he rear Rch line.a71 SWITCH UNIT (X16-2020-10/12/2222-70)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 LC75808W LCD driver Drive for LCD unit.IC2 PNA4S22M Remote control IC Receiving for the remote control unit.Q1 2SC4081 VLCD AVR When base voltage level goes 7.9V

23、 Q1 is ON.Q2 DTA114EUA Remo. ON SW When base voltage level goes “L“ the power supply IC2 is turned “ON“.Q3 2SC4081 key illumination SW Lights up for green key illumination when base voltage level goes “H“.Q4 2SC4081 key illumination SW Lights up for red key illumination when base voltage level goes

24、“H“.Q5 2SC4081 Dimmer control SW Lights up for LCD back light when base voltage level goes “H“.KDC-6024/Y/X4695MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Name I/O Description/Processing Operation1 PLL CLK O CLK output terminal to Front End2 N.C - Open3 PANEL DET I Panel assy detect terminal ( Panel

25、assy come off : L)4 IC2 SDA I/O Control Data input / output terminal for electric volume, CD mechanism 5 IC2 SCL O Clock DATA output terminal for electric volume, CD mechanism 6 VDD - Power supply input terminal (BU 5V)7 VSS - GND8 FLIP-DET I Panel assy open detect terminal (panel close : L )9 BEEP

26、O Beep audio signal output terminal10 REMO I Remote control signal input terminal11 R QUAL I RDS decoder QUAL signal input terminal12 R DATA I RDS decoder Data signal input terminal13 L CE O CE output for LCD driver IC14 VILL DATA O Variable illumination DATA out put terminal for D/A converter15 VIL

27、L CLK O Valuable illumination CLK out put terminal for D/A converter16 DSI O Disc guide illumination control terminal17 DIM CON O Dimmer control terminal18 TEST - Test terminal19 ILL CON O Illumination control terminal20 VOL A I Volume key input terminal21 VOL B I Volume key input terminal22 MOSW O

28、CD mechanism motor IC control output terminal (Loading,eject ,brake :L )23 LO/EJ O CD mechanism loading / eject control terminal24 M STOP O Request signal (Mechanism is STOP) output to CD mechanism (active L)25 M RST O Reset signal output to CD mechanism (active L)26 MUTE O Muting signal output term

29、inal27 LOE/LIM SW I Down SW detection from CD mechanism28 M-MUTE L I Request for muting signal from CD mechanism (Mute request : L )29 M-MUTE R I Request for muting signal from CD mechanism (Mute request : L )30 PANEL 5V O Control for Panel5V AVR31 RESET I Reset terminal (Active : L )32 XT1 I Sub cl

30、ock input terminal (32.768KHz)33 XT2 I Sub clock input terminal (32.768KHz)34 REGC - Regulator output terminal35 X2 I Main clock input terminal (20MHz)36 X1 I Main clock input terminal (20MHz)37 VSS - GND38 VDD - Power supply input terminal (BU 5V)39 NC - Open40 IC2 TYPE1 I Electric volume condition

31、 setting terminal41 IC2 TYPE0 I Electric volume condition setting terminal42 TYPE2 I Destination setting terminal43 TYPE1 I Destination setting terminal44 TYPE0 I Destination setting terminal45 CD MECHA+B O AVR control for CD mechanism ( For MP3 AVR ON :L ) 46 SW 5V O Control terminal for SW5V AVR (

32、ON : L , OFF : Hi-Z)47 PS2-0 O Power supply IC control terminal48 PS2-1 O Power supply IC control terminal49 PS1-0 O Power supply IC control terminal50 PS1-1 O Power supply IC control terminala71 IC1: ELECTORIC UNIT (X25-9712-71/9800-10/9802-71)KDC-6024/Y/X4696MICROCOMPUTERS TERMINAL DESCRIPTIONPin

33、No. Name I/O Description/Processing Operation51 PS1-2 O Power supply IC control terminal52 B.U-DET I BU detect input terminal ( BU detect : L )53 ACC-DET I ACC detection input terminal (ACC detect : L)54 DIMMER I Illumination detect terminal from CAR (illumination ON : L )55 BVDD - Power supply inpu

34、t terminal (BU 5V)56 BVSS - Open57 EXT AMP CON O EXT. amp control terminal (Active H)58 SVR O SVR control for Audio power IC59 P-MUTE O Muting control for Audio power IC60 P-STBY O STBY control for Audio power IC (Power IC ON : H )61 NC - Open62 PRE MUTE R O Rch pre mute output terminal (Active H)63

35、 PRE MUTE L O Lch pre mute output terminal (Active H)64 TUNER O Noise detection (FM seek,AM search : L )65 O-DATA O DATA signal output for EXT. display (Handling for OPEL display)66 O-CLK O CLK signal output for EXT. display (Handling for OPEL display)67 O-CE O CE signal output for EXT. display (Han

36、dling for OPEL display)68 LX-RST O Reset signal output to EXT. unit69 LX-CON O Control signal output to EXT. unit (ON : H , OFF : L)70 AVCONT O Control for A/D reference voltage71 AVDD - Power supply input terminal (BU 5V)72 AVSS - Open73 AVREF I A/Dereference voltage input terminal74 PHONE I Mobil

37、phone detection input terminal7581 NC - GND82 S-METER I S meter detection input terminal83 NOISE I FM noise detection input terminal84 IFC-OUT I IFC OUT input terminal85 LX-MUTE I Request signal input terminal from EXT.unit (Mute ON : L )86 LX-REQ-M O Request signal output terminal to EXT.unit (Requ

38、est : L)87 R-CLK I RDS decoder CLK input terminal88 LX-REQ-S I Request signal input terminal from EXT.unit (Request : L)89 KEY-REQ I Request for communicate from LCD driver IC (KEY input : L )90 LO.S SW I Loading start SW detection input terminal (Loading start : L )91 12EJE SW I 12cm CD disc eject

39、SW detection input terminal (12cm disc : L )92 EJECT I Eject detection terminal (KEY input : L)93 8EJE SW I 8cm CD disc eject SW detection input terminal (Not used)94 LX-DATA-S I DATA signal input from EXT. unit95 LX-DATA-M O DATA signal output to EXT. unit96 LX-CLK I/O CLK signal input/output to EX

40、T. unit97 L DATAL I DATA input terminal from LCD deriver IC98 L DATAS O DATA output terminal to LCD driver IC99 L CLK O CLK output terminal to LCD driver IC100 PLL DATA I/O Data input / out put terminal to Front-endKDC-6024/Y/X4697TEST MODE1. How to enter the test mode While holding the preset 1 key

41、 and 3 keys, reset the unit.2. How to exit from the test mode Reset the unit, ACC OFF, power OFF, and come off thefront 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 : OFFCRSC : OFF regardless

42、 of the presence of switching function. SYSTEM Q : Flat. Aux : ON Display color : white (variable color display model only) Beep sound : ON4. Special display in Tuner modeWhen any of the following messages is displayed in Tuner mode, the Front-end (F/E) may be bad condition. “TNE2P NG“: The EEPROM i

43、s set to the default (unstablevalues) because the F/E was shipped without passingthrough the adjustment process, etc. “TNCON NG“: Communication with the F/E to micro-processor is not possible.5. Forced switching of K3IEach press of the Preset 6 key in Tuner mode shouldswitch K3I from AUTO a161 Force

44、d Wide a161 Forced Middle a161Forced Narrow a161 AUTO. The initial status is AUTO andthe display shows these modes as follows. AUTO : FMA Forced Wide : FMW Forced Middle : FMM Forced Narrow : FMN6. Test mode specifications of the CD receiver Forced ejection is inhibited in the reset start operation.

45、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 followingtrack numbers:No. 9 a161 No. 15 a161 No. 10 a161 No. 11 a161 No. 12 a161 No. 13 a161No. 22 a161 No. 14 a161 No. 9 (The cycle restarts from here.) Each press

46、of the Track Down key jumps to the previoustrack number to the track being played. When the number of total tracks of an MP3 disc is nine orless, unit playback from a track 1. When the media to CD-DA, unit playback from track No.28by key operation of preset 1 key.7. Audio-related specifications A sh

47、ort press of 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

48、is adjusted in 3 steps of Left L15 / 0 / R15 Maxwith the Track Up/down keys (default is 0). Fader is adjusted in 3 steps of Rear15 / 0 / F15 Max withthe 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 a

49、djusted in 2 steps of Through/120Hz with the TrackUp/down keys (default is through). Bass f, Bass Q, Bass EXT, Middle f, Middle Q and Treblef are not dealt with by the audio adjustment.8. Menu-related specifications A short press of the PLAY/PAUSE key initiates the Menumode. 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 the Track up/down key in 3 steps of 0 / 5 / 10 (default is 5).9. Backup current measurementWhen the unit is reset while ACC is OFF