Kenwood-KDC-4022-Service-Manual电路原理图.pdf

KDC-4022OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDC.S.MENUNAME.SDISPAUTOAME 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-6023OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDMENUNAME.SDISPAUTOGSM Front glass(B10-4309-01 : 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)Screw set(N99-1719-15)Not suppliedRemote 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 JAPANB53-0023-00 (N)1724CD RECEIVERKDC-4022KDC-422KDC-6023SERVICE MANUALKDC-4022/422/60232BLOCK DIAGRAMBUFFERQ101RDSDECODERIC7Q201BUFFEREEPROMIC10IC1(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 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 CLKMS DATAM MUTE LSW4M MUTE RLO/EJM STOPMOSWM RSTSERVO+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 DETBEEPPS1-0PS1-1PS1-2PS2-0PS2-2RSTFREEREARFRONTBU5VBUCK UPA8VAUXSW5VBACK UPAM+BFM+BILLUMIA8VBU5VBU5VBU5VTUNERCDEX.CHSWITCH UNIT (X16- )DAUGHTER UNIT(X89- )KDC-4022/422/60233a71 CD PLAYER UNIT (X32-5400-00)COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/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, included gain control function 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 ration) operations, and Microcomputer function.IC3 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation.IC4 NJM4580M1 Low pass filter 2nd low pass filter for audio signals.Q1 MCH6101 APC LD power control.Q2 2SA1362(Y) D.5V SW When P ON signal gose“L“, Q2 is ON.Q3 DTC124EUA Q4 SW When P ON signal gose“L“ (SW+5V AVR is ON), Q3 is ON.Q4 DTA143XUA A.8V SW When P ON signal gose“L“ (Q3 is ON), Q4 is ON.Q5 2SC4081 Current driver Current driver.Q6 2SA1576A Current driver Current driver.D1 DAN202U Protection diode Laser diode protection.D2 MA8051-L Zener diode DAC AVR/LPF reference voltage (A.5V).D3 DA204U Current driver Current driver.a71 ELECTRIC UNIT (X25-9800-11/12/21)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 TDA7411 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 maximum for each channel).IC6 HD74HC27FP Muting control IC Control for timing for mute.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 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 supplied 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. 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-4022/422/60234COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/Condition/CompatibilityQ151 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 5V 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 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(Q32,356,358).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.a71 SWITCH UNIT (X16-2020-10/12)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 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 “H“.Q5 2SC4081 Dimmer control SW Lights up for LCD back light when base voltage level goes “H“.KDC-4022/422/60235MICROCOMPUTER'S 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 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 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 VILL 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 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 terminal27 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 clock 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 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 (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 (X25-9800-11/12/21)KDC-4022/422/60236MICROCOMPUTER'S TERMINAL DESCRIPTIONPin 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 input 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 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 (Handling 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 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 (Request : 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 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 EXT. 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-4022/422/60237TEST 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 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 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 is 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 Forced 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.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 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 short 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 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 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 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 (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-4022/422/60238TEST MODE10. Special display when the display is all onPressing the Preset keys while t