Kenwood-KDC-5024-Service-Manual电路原理图.pdf

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1、KDC-3022OFF-+M.RDMREPSCAN RDMAUDC.S.MENUNAME.SDISPAUTOAME KDC-5023OFF-+DABM.RDMREPSCAN RDMAUDPTYMENUNAME.SDISP AUTOAME KDC-5024OFF-+DABM.RDMREPSCAN RDMAUDPTYMENUNAME.SDISPTIKDC-507OFF-+DABM.RDMREPSCAN RDMAUDPTYMENUNAME.SDISPTIEscutcheon(B07-3022-02)(B07-3083-02)(B07-3089-02) Plastic cabinet assy(A02

2、-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(N99-1719-05)Not suppliedPanel assy(A64-2824-02 : KDC-3022)(A64-2825-0

3、2 : 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 : KDC-5023R)(A64-2834-02 : KDC-5023)Front grass(B10-4310-01 : KDC-5023R)(B10-4

4、311-01 : 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 the parts list.CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.Please refer t

5、o service manual for X92-4450-0X (B51-7889-00).CD mechanism extension cord (22PIN) : W05-0618-00 2003-1 PRINTED IN JAPANB53-0024-00 (N)3379CD RECEIVERKDC-3022, 322KDC-5023/R, 5024/V/Y/YVKDC-507, 5094RYSERVICE MANUALKDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY2BLOCK DIAGRAMBUFFERQ101RDSDECODERIC7Q201BU

6、FFEREEPROMIC10IC1(V-ILL ONLY)DA CONVERTERIC3IC2REMOCONRESET SWENCODERROTARYS24WITHLCD DRIVERKEY MATRIXIC1LCDPANEL DETS1EJECT SWS1EJECT ILLUMIDSIu-COMIC2MPXE-VOL&EXT AMPDIMMERACC DETTEL MUTEB.U DETPRE MUTEPRE MUTEPRE MUTEDRIVERMUTEIC6POWERICIC4THERMALPROTECTPRE OUT(REAR/NF)EXT.AMP.CONDIMMERACCTEL MUT

7、EBACK 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 CLKMS DATAM MUTE LSW4M MUTE RLO/EJM STOPMOSWM RSTSERV

8、O+BA8VBU5VCD MECHA+BDATA CCH MUTECH RSTREQ HREQ CCH CLKCH-CONDATA HBUCK UPNOISEQUALS-METERR DATAR CLKFMAMMP INLEVELCDQUALAFSCHSW5VSW5VBU5VPANELDETEJECT DSI LCLKLDATASL CELDATALVOLAVOLBREMO V DATAV CLK O-CEO-DATAO-CLKPRE MUTEMUTEP-MUTEEXT.AMP.CONDIMMERPHONEACC DETB.U DETBEEPPS1-0PS1-1PS1-2PS2-0PS2-2R

9、STFREEREARFRONTBU5VBUCK UPA8VAUXSW5VBACK UPAM+BFM+BILLUMIA8VBU5VBU5VBU5VTUNERCDEX.CHSWITCH UNIT (X16- )DAUGHTER UNIT(X89- )KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY3a71 CD PLAYER UNIT (X32-5390-00/01)COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/Condition/Compatibilit

10、yIC1 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, included gain control func

11、tion during CD-RW.IC2 MN6627771KP 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, audio data Interpol rati

12、on) operations, and Microcomputer function.IC3 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, discloading and eject operation.IC4 NJM4580M1 Low pass filter 2nd low pass filter for audio signalsQ1 MCH6101 APC LD power controlQ2 2SA1362(Y) D.5V SW When P ON

13、signal gose“L“, Q2 is ONQ3 DTC124EUA Q4 SW When P ON signal gose“L“(SW+5V AVR is ON), Q3 is ONQ4 DTA143XUA A.8V SW When P ON signal gose“L“(Q3 is ON), Q4 is ONQ5 2SC4081 Current driver Current driverQ6 2SA1576A Current driver Current driverD1 DAN202U Protection diode Laser diode protectionD2 MA8051-

14、L Zener diode DAC AVR/LPF reference voltage (A.5V)D3 DA204U Current driver Current drivera71 ELECTRIC UNIT (X25-9580-xx/2232-xx)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 M30302MC-5W3FP System microcomputer Control for TUNER unit, CD mechanism, volume & tone, L

15、CD driver and M30302MC-1N4FP external CD changer unitIC2 TDA7407D 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 Am

16、plifier for audio signal to derive for 4channel speakers (50W maximum for each channel)IC6 HD74HC27FP Muting control IC Control for timing for muteIC7 SAA6581T RDS decoder Decode for RDS signalIC8 PST3435UL Reset IC When detection voltage goes below 3.5V or less Reset IC output change to “L“ signal

17、Q1 2SC4081 Serge detection When backup voltage become more 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 outpu

18、t is “H“Q3 2SC4081 ACC detection When ACC voltage supplied output is “L“ Q4 2SA1036K SW 5V When base voltage is “L“ Q4 is ON Q21 2SD2375 AVR Servo regulatorQ22 UMC2N SW Servo SWQ23 UMC2N IC control Power supply IC controllerQ101 KRC410 Buffer amp COMPOSITE SIGNAL BUFFERQ151 DTA114YUA DSI driver When

19、 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. 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

20、-3022,322,5023/R,5024/V/Y/YV,507,5094RY4COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/Condition/CompatibilityQ152 2SA1576A Panel 5V SW When panel assy attached to the unit, Q152 base gose “L“ and supply topanel 5V AVR to panel assyQ153 KRC404 Illumination control When

21、Q153 base voltage to “H“, illumination is light up Q154 2SA1577 Illumination control When Q153 base voltage to “H“, illumination is light up Q201 KRC410 Buffer amp Noise buffer amp Q351 KRC410 Pre mute SW When base voltage to “H“, muting to the rear Lch lineQ352 KRC410 Pre mute SW When base voltage

22、to “H“, muting to the rear Rch lineQ354 KRA303 Pre mute SW When base voltage to “L“, drive to pre mute SW(Q351,352,355,356)Q355 KRC410 Pre mute SW When base voltage to “H“, muting to the front Lch lineQ356 KRC410 Pre mute SW When base voltage to “H“, muting to the front Rch linea71 SWITCH UNIT (X16-

23、203x-xx/2032-xx)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 NJU6535 LCD driver Drive for LCD unitIC2 PNA4S22M Remote control IC Receiving for the remote control unitQ1,Q4 DTA114EUA Remo.on SW When base voltage level goes “L“ the power supply IC2 is turned “ON“Q2

24、 2SC4081 Key illumination SW Lights up for green key illumination when base voltage level goes “H“Q3 2SC4081 Key illumination SW Lights up for red key illumination when base voltage level goes “H“KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY5MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Name I/O Descripti

25、on/Processing Operation1-5 N.C - Open6 REMO I Remote control signal input terminal7 N.C - Open8 BYTE I EXT. bus width select input terminal (GND)9 CNVSS - Pull down to GND10 XCIN I Sub clock input terminal (32.768KHz)11 XCOUT O Sub clock output terminal (32.768KHz)12 RESET I Reset terminal (Active :

26、 L )13 XOUT O Main clock output terminal (10MHz)14 VSS - GND15 XIN I Main clock input terminal (10MHz)16 VCC - Power supply input terminal (BU 5V)17 NMI - Pull up to BU5V18 EJECT I Eject detection terminal (Active L)19 R-CLK I RDS decoder clock input terminal20 LX-REQ S I EXT. unit request signal in

27、put terminal (Request L)21 ILL CON O Illumination control terminal22 PANEL 5V O Control for Panel5V AVR (Active L) 23 VOL A I Volume key input terminal24 VOL B I Volume key input terminal25 LOE/LIM SW I CD mechanism down sw detect input terminal (Disc clamp : H)26 BEEP O Beep audio signal output ter

28、minal27 M STOP O Request signal (Mechanism is STOP) output to CD mechanism (active L)28 MOSW O CD mechanism motor control output terminal (Loading, eject ,brake : H)29 PLL-CLK O System clock put to Front-end30 PLL-DATA I/0 Data input / out put to Front-end31 LX-DATA M O EXT. unit Data output to EXT.

29、unit32 LX-DATA S I EXT. unit Data input from EXT.unit33 LX-CLK I/O EXT.unit Clock input/output terminal34 LX-REQ M O EXT unit Request output terminal (Request L)35 L DATAS O DATA output terminal to LCD driver IC36 L DATAL I DATA input terminal from LCD driver IC37 L CLK O CLK output terminal to LCD

30、driver IC38 FLIP-DET I Panel assy open detect terminal (panel close : L )39 L CE O CE output for LCD driver IC40 LO/LE I/O CD mechanism loading / eject control terminal41 EPM I Flash memory control terminal (pull down to GND, 100K)42 M RST O Reset signal output to CD mechanism (active L)43 M-MUTE R

31、I Request to muting signal(R ch) from Mechanism ( Mute on : L )44 12EJE SW I 12cm CD disc eject SW detection input terminal (12cm disc : L )45 M-MUTE L I Request to muting signal (L ch) from Mechanism ( Mute on : L )46 LX-CON O EXT.unit select control terminal (Active H)47 LO.S SW I Loading start SW

32、 detection input terminal (Loading start : L )48 DSI I Disc guide illumination control terminal (Lighting on : L)49 PANEL DET I Panel assy detect terminal (Panel assy come off : L)50 N.C - Opena71 IC1: ELECTRIC UNIT (X25-9580-xx/2232-xx)KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY6MICROCOMPUTERS TERMI

33、NAL DESCRIPTIONPin No. Name I/O Description/Processing Operation51 IFC OUT I IFC OUT input terminal52 R-DATA I RDS decoder data input terminal53 R-QUAL I RDS decoder QUAL input terminal54 N.C - Open55 AFS O Noise detection (FM seek, AM search : L )56 SDA I/O Control Data input / output terminal for

34、electric volume, CD mechanism 57 SCL O Clock DATA output terminal for electric volume, CD mechanism 58 MUTE O Muting control terminal ( to IC2)59 N.C - Open60,61 IC2 TYPE0/1 I Market/Genuine model setting terminal62 VCC - Power supply input terminal (BU 5V)63 N.C - Open64 VSS - GND65-67 TYPE0-2 I De

35、stination setting terminal68 N.C - Open69 SVR O Power IC SVR control terminal (Power off : L)70 S-STBY O Power IC standby control terminal (Power IC on : H) 71 P-MUTE O Power IC standby muting control terminal (Power mute/all off/TEL mute : L) 72 SW5V O SW5V on/off control terminal ( SW5V ON : L)73

36、B.U DET I BU detect input terminal ( BU detect : L )74 ACC-DET I ACC detection input terminal (ACC detect : L)75 N.C - Open75-80 PS1-0/1/2,PS2-0/1 O Power supply IC control terminal81 LX-MUTE I Muting signal request for EXT.unit ( Muting ON : L) 82-88 N.C - Open89 KEY-REQ I Request for communicate f

37、rom LCD driver IC (KEY input : L )90-92 N.C - Open93 S-METER I S meter voltage detection input terminal94 NOISE I FM noise detection input terminal95 N.C - Open96 AVSS - GND97 PHONE I Mobil phone detection input terminal98 VREF - Ref. voltage input terminal99 AVCC - Power supply input terminal (BU 5

38、V)100 REFCON O VERF control terminal (Power ON : H)KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY7TEST MODE1. 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 OFF, power OFF, and come off thefront panel assy for th

39、e 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 of the presence of switching function. SYSTEM Q : Flat. Aux : ON Display color : white (variable color display model only) Beep sound :

40、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 is set to the default (unstablevalues) because the F/E was shipped without passingthrough the adjustment process, etc. “TNCON NG“: Communi

41、cation 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 Forced Wide a161 Forced Middle a161Forced Narrow a161 AUTO. The initial status is AUTO andthe display shows these modes as follows. AUTO : FMA

42、 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.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 fol

43、lowingtrack 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 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

44、 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 short press of the Q key initiates the audio adjustment mode. Pressing the key on the remote initiates the audio ad-justment mode. Continuo

45、us 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 Maxwith the Track Up/down keys (default is 0). Fader is adjusted in 3 steps of Rear15 / 0 /

46、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 adjusted 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 Tre

47、blef 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/

48、down key in 3 steps of 0 / 5 / 10 (default is 5).9. Backup current measurementWhen the unit is reset while ACC is OFF (i.e. by turningBackup 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/V/Y/YV,507,5094RY

49、8TEST MODE10. Special display when the display is all onPressing 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 information1. 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 turnthe power ON for 30 minutes.After 30 minutes have elapsed, it is not possible to return to the pr