Kenwood-KDCMP-222-Service-Manual电路原理图.pdf
© 2002-12 PRINTED IN JAPANB53-0013-00 (N)1724CD RECEIVERKDC-MP222KDC-MP4023/GSERVICE MANUALPanel assy(A64-2863-02): KDC-MP222Panel assy(A64-2874-02): KDC-MP4023(A64-2881-02): KDC-MP4023GEscutcheon(B07-3022-02): KDC-MP222Escutcheon(B07-3003-02): KDC-MP4023G(B07-3022-02): KDC-MP4023Size AA battery(Not supplied)DC cord(E30-4784-05)Plastic cabinet assy(A02-1486-13)Remote controller assy(RC-410)(A70-2025-05): KDC-MP4023/GRemote controller assy(RC-505)(A70-2040-05): KDC-MP222Mounting hardware assy(J21-9716-03)Screw set(N99-1719-05)Lever(D10-4589-04)Screw set(N99-1610-15)2TUNERMP3CHSWITCH UNIT (X16- )BUFFERRDSDECODERBUFFEREEPROMREMOCONRESET SWWITHLCD DRIVERKEY MATRIXLCDDSIu-COMMPXE-VOL&ACC DETTEL MUTEB.U DETPRE MUTEDRIVERMUTEPOWERICTHERMALPROTECTACCTEL MUTEBACK UP(REAR)PRE OUTSP OUTSURGE DETSERVOSERVO+B SW 14VWIRED REMOSUPPLYICPOWERANT CONP CONRESETSW 5VPANEL 5VSW5VMECHA+BMECHA+ILL SWILLUMIIC7IC2IC1IC4IC3IC8IC1IC2S-METERAUDIO OUTIFC OUTPLL-DATAPLL-CLKSW5VAM+BA8VSW(SW3)12EJE SW(SW2)LO/S SW(SW1)MS CLKMS DATALO.E/LIMM MUTELO/EJM STOPM RSTSERVO+BA8VBU5VMECHA+DATA CCH MUTECH RSTREQ HREQ CCH CLKCH-CONDATA HBACK UPQUALS-METERRDATAR CLKFMAMMPLEVELCDQUALAFSCHSW5VSW5VBU5VDSI L CLKLDATASL CE LDATALREMOMUTEP-MUTEPHONEACC DETB.U DETBEEPPS1-0PS1-1PS1-2PS2-0PS2-2RSTBU5VBACK UPA8VSW5VAM+BILLUMIA8VBU5VBU5VMODEFMAMMP3E-TYPE1372mV855mV3600mVK-TYPE1800mV600mV3600mVP-STBYBU5VTDF DETPANELBU5VSW5VDATACLKBLOCK DIAGRAMKDC-MP222KDC-MP4023/G3a71 SWITCH UNIT (X16-2050-1x)Ref. No. Function OperationIC1 LCD DriverIC2 Remote-control sensor ICQ1 Key-scan Start SW “ON“ when the base goes “L”.a71 ELECTRIC UNIT (X25-9620-xx)Ref. No. Function OperationIC1 System MI-COMIC2 E-VOL. & N.C. MPXIC3 Power Supply ICIC4 Power ICIC6 Analog SW (Mute logic)IC8 Reset IC “L” : detection voltage below 3.6VIC9 CD mechanism 5V AVRQ1 SERGE Det. ON when the base goes “Hi”.Q2 B.U. Det. ON when the base goes “Hi” during BU applied.Q3 ACC Det. ON when the base goes “Hi” during ACC applied.Q4 SW 5V ON when the base goes “Lo”.Q21 SERVO +B AVR Output voltage 7.4VQ22 SW 14V ON when the base goes “Hi”.Q23 SW for power supply IC SW1 terminal of a power supply IC is controlled.Q41 MECHA 5V AVR SW ON when the base goes “Lo”.Q151 Panel 5V SW ON when the base goes “Lo”.Q201 Noise bufferQ350 Mute driver for Audio mute SW ON when the base goes “Lo”.Q351 Pre mute SWAudio Pre-output is muted when the base goes “Hi”.Q352 Pre mute SWQ401 DSI ILLUMI SW ON when the base goes “Lo”.COMPONENTS DESCRIPTIONKDC-MP222KDC-MP4023/G4a71 SYSTEM MICROCOMPUTER UPD703030GC011 (IC1 : X25)pin pin name I/O Description truth table Processing Operation1 PLL CLK I/O Clock output to F/E2 AFS O Noise detection time constant switching terminal FM seek/during/AF search : L, receiving : H3 TDF DET I TDF panel detection terminal Panel detached : H, panel attached : L4 IC2 SDA I/O Data input and output terminal with E-VOL4 IC2 SDA I/O Data input and output terminal with CD mechanism4 IC2 SDA I/O Data input and output terminal with E2PROM5 IC2 SCL I/O Clock output to E-VOL5 IC2 SCL I/O Clock output to CD mechanism5 IC2 SCL I/O Clock output to E2PROM6VD -7 VSS -8 - O Not used9 BEEP O Beep output terminal10 REMO I Remote control input11 R QUAL I RDS decoder quality input terminal11 - O Not used With no RDS and destination is output L12 R DATA I RDS decoder data input terminal12 - O Not used With no RDS and destination is output L13 L CE O CE output to LCD driver14 - O Not used15 L INH O Reset output to LCD driverDisplay light off, KEY reset : L Display light on,KEY scan : H16 DSI O DSI control terminal DSI light on : H, Light off : L17 - O Not used18 TEST -1921 - O Not used22 MOSW O CD mechanism motor IC switch e Loading/Eject/Break : H23 LO/EJ I/O CD mechanism Loading/Eject switch e Stop/Break : Hi-Z Loading : L Eject : H24 M STOP O Stop request to CD mechanism25 M RST O Reset output to CD mechanism Usually : H, Reset : L26 MUTE I/O Mute terminal L : MUTE OFF, H : MUTE ON27 LO.E/LIM SW (SW3) I CD Down Switch detection terminal H : chucking28 M MUTE L I MUTE request from CD mechanism L : MUTE request29 M MUTE R I MUTE request from CD mechanism L : MUTE request30 - O Not used31 RESET I Usually : H, Reset : L32 XT1 I Sub clock 32.765kHz33 XT2 I Sub clock 32.765kHz34 REGC - Ceramic capacitor connected to the pair grounds35 X2 I Main clock 20MHz36 X1 I Main clock 20MHz37 VSS -38 VDD -39 CLKOUT -40 IC2 TYPE1 I E-VOL setting switching terminal41 IC2 TYPE0 I E-VOL setting switching terminal42 - O Not used43 TYPE1 I Destination switching terminal r44 TYPE0 I Destination switching terminal rMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-MP222KDC-MP4023/G5pin pin name I/O Description truth table Processing Operation45 CD MECHA+B I/O Power supply control terminal for MP3 ON : L, OFF : Hi-Z46 SW5V I/O Control terminal for switch5V ON : L, OFF : Hi-Z47 PS2-0 O Control terminal for power supply IC w48 PS2-1 O Control terminal for power supply IC w49 PS1-0 O Control terminal for power supply IC q50 PS1-1 O Control terminal for power supply IC q51 PS1-2 O Control terminal for power supply IC q52 BU DET I BU detection terminal BU detection : L, with no BU : H53 ACC DET I ACC detection terminal ACC detection : L, with no ACC : H54 - O Not used55 BVDD -56 BVSS -57,58 - O Not used59 P-MUTE O POWER IC MUTE output terminal POWER OFF : L, ALLOFF : L, TEL MUTE : L60 P-STBY O POWER IC STBY output terminal POWER IC ON : H, OFF : L61,62 - O Not used63 PRE MUTE O PREOUT MUTE outputduring momentary power down L,When M-MUTEL : L6467 - O Not used68 LX-RST O Reset output to external unitUsually, L after system RST returned,aftermore than 400m sec H, and L69 LX-CON O Control output to external unit ON : H, OFF : L70 AVCONT O AD reference voltage control output during motion : H71 AVDD -72 AVSS -73 AVREF - Connection with 70pin74 PHONE I PHONE detection terminalTEL MUTE : 1V orless, NAVI MUTE : morethan 2.5V74 - I Not used (with no PHONE destination)7581 - I Not used82 S-METER I S-meter detection terminal Dependant for control use of tuner83 NOISE I FM noise detection terminal Dependant for control use of tuner84 IFC-OUT I F/E IFC OUT input terminal Dependant for control use of tuner85 LX-MUTE I MUTE request to external unit H : MUTE ON, L : MUTE OFF86 LX-REQM O Request output to external unit Request detection : L87 R CLK I RDS decoder Clock input terminal87 - O Not used Destination with no RDS : output L fixed88 LX-REQS I Request intput to external unit Request detection : L89 KEY-REQ I Request of communication from LCD driver L : KEY input90 LO.S SW (SW1) I Loading start switch detection terminal Loading start : L91 12EJE SW (SW2) I 12cmDISK EJECT position detection switch terminal 12cmDISC : L92 - O Not used93 - O Not used94 LX-DATAS I Data input from external unit95 LX-DATAM O Data output to external unit Holding the last96 LX-CLK I/O Clock output and input terminal with external unit97 L DATAL I Data input from LCD driver98 L DATAS O Data output to LCD driver99 L-CLK I/O Clock output to LCD driver100 PLL DATA I/O Data output and input terminal with F/EMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-MP222KDC-MP4023/G6MICROCOMPUTERS TERMINAL DESCRIPTIONTruth table 1PS1-0 PS1-1 PS1-2 AUDIO P-CON P-ANTL L L OFF OFF OFFH(L) L(H) L ON OFF OFFH H L ON ON OFFHHHO ONTruth table 2PS2-0 PS2-1 ILLUMI FM+B AM+BL L OFF OFF OFFH (L) L (H) ON ON OFFH H ON OFF ONTruth table 3MOSW LO/EJ CD mechanism operationL H LoadH H Eject- L Lo/Ej invalid truthHi-Z H BrakeTruth table 4 (destination setting)destination portsmodel destinationTYPE2 TYPE1 TYPE0KDC-MP222 K - 0 0KDC-MP4023 M (E) - 0 1KDC-M4524/G/Y/GY E/E2 - 1 01. How to enter the test modeWhile holding the Preset 1 and Preset 3 keys, reset theunit.2. How to exit from the test modeReset the unit, ACC OFF, power OFF and Panel detached.(Note) The test mode cannot be terminated by momen-tary power down.3. Initial status in the test mode Sources : ALL OFF Display : All segments are lit. Volume : -10 dB (displayed as “30“) Loudness : OFF CRSC : OFF regardless of the presence ofswitching function. SYSTEM Q : Flat BEEP : When pressing any keys, the buzzergenerates a beep at any time. SYSTEM Q MENU : OFF4. Special display in Tuner modeWhen any of the following messages is displayed in Tunermode, the F/E may be abnormal. “TNE2P NG“ : The EEPROM is set to the default (un-stable values) because the F/E was shipped withoutpassing through the adjustment process, etc. “TNCON NG“ : Communication with the F/E is not pos-sible.TEST MODEKDC-MP222KDC-MP4023/G75. Forced switching of K3IEach press of the Preset 6 key in Tuner mode should switchK3I from AUTO Forced Wide Forced Middle ForcedNarrow AUTO.The initial status is AUTO and the display shows thesemodes 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 CDis not recognized by resetting. Each press of the Track Up key jumps to the followingtrack numbers:No. 9 No. 15 No. 10 No. 11 No. 12 No.13 No. 14 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 trucks of the MP3 disc is lessthan 9, 1st truck is played. When the disc media is CD, a short press of the Preset1 key jumps to the track number 28.7. Audio-related specifications A short press of the Q key initiates the audio adjustmentmode. Pressing the key on the remote initiates the audio ad-justment mode. Fader is selected to the initial item. Continuous holding of a remote control key is inhibited. Bass, Middle and Treble are adjusted in 3 steps of Min/Center/Max with the Track Up/Down keys. Balance is adjusted in 3 steps of Left Max/Center/RightMax with the Track Up/Down keys. Fader is adjusted in 3 steps of Rear Max/Center/FrontMax with the Track Up/Down keys. Bass f/Bass Q/Bass EXT/Middle f/Middle Q/Treble f arenot death with by the audio adjust.8. Menu-related specifications A short press of the PLAY/PAUSE key initiates the Menumode. Pressing the DNPP/SBF key on the remote initiates theMenu mode. Continuous holding of a remote control key is inhibited,a short press initiates the Menumode. Contrast is adjusted in 3 steps of 0/5/10, with the trackup/down keys.9. Backup current measurementWhen the unit is reset while ACC is OFF (i.e. by turningBackup ON), the MUTE terminal goes OFF in 2 secondsin place of 15 second. (The CD mechanism is not acti-vated at this time.)10. Special display when the display is all onPressing the Preset keys while the power is ALL OFF dis-plays the following information.Version displayPRESET 1 (8 digits, Month/Day/Hour/Minute)(Display) SYSxxxxx : System microcomputerShort press : View power ON time.(The All OFF period is not counted.)PRESET 3 Long press/hold : Clear power ON time atthe power ON time displaying.(Display) PonTim xxxxx Max. 60000 (hours)Short press : Display CD operation time.PRESET 4Long press/hold : Clear CD operation time atthe CD operation time displaying.(Display) CDTimxxxxx Max. 60000 (hours)Short press : Display CD ejection count.PRESET 5Long press/hold : Clear CD ejection count atthe CD ejection count displaying.(Display) EjeCnt xxxxx Max. 60000 (times)Short press : Display Panel open/close count.PRESET 6Long press/hold : Clear Panel open/closecount at the Panel open/close count.(Display) PnCnt xxxxx Max. 600000 (times)11.Other specificationsLINE MUTE inhibit time is 1 second from 10 second whenstart up the test mode.12.Switching the frequency span (K/M type)While holding the preset q key and preset t keys, resetthe unit.13.Response to OEM setting (destination of elec-tronic volume setting)S03F/E models are response to OEM models option atput in µ-com 2 pin.Its setting re following steps.TEST MODEIC2-TYPE0 IC2-TYPE1Description(41pin) (40pin)Low Low qTrade model (initial quantif)Low High wTrade model (CRSC Change)High Low eOEM model-ready CRSC changeHigh HighrOEM model-ready CRSC &de-emphasisKDC-MP222KDC-MP4023/G8A B C D E1234567+TESTIFCNOISESMETERRSTSCLSDAC115C117C211C255C256C258C309R8R355R356C201 C202C251C252C253C254C257C301C302C303C351C352L3L5L6L7L8L10R9R31R171R172 R173 R174R175R176R180R181R182R183R301R302 R303R304 R305R306R307R308 R309 R310R311R351R352R357R358R374X3W12W9W7W4W6W3139106 7 5 11892524211 12 8 4 3 2W2W10W11W8W5W1WW15W17R20298C118 C114161R112R113R114C116C203R201R203C204C206C212C2131 4R207 R208R403R153R52R102R104R154R206R106R1011001R152R51C40R54R53R58R56C407R6322423115 11241214 2R160R60R61R62R55R592526R409R420R410C40X1R419R415281C210R2561514C20558141R404R315R401C111C304 767587R402R405 R406R317R255R27R28R417R10BEEC5R11R24R251R26R2550R412C4R7C3R6R4R5R411EBEBEBIC4IC7IC1IC2IC10IC6J4A1CN2J3J2D31D51D52D201 D202D251D252D254D255D301D302D303D304D305D306D307D308D309D310D311J5P1D151D155D156D157D158D159D160D161D162D2D4D203D206D269 D270 D271D154D153D152CN4Q350Q23Q3D26Q2ELECTRIC UNIT (X25-9620-xx) (J74-1466-12)KDC-MP222KDC-MP4023/GPC BOARD (COMPONENT SIDE VIEW)a77a76JIHGF12345679L1GNDRSTVDDC21C43C44L12C26L11C1C41 C42C22C23C24C25C27C28C29C409R8R22R23R133161R407W12W23W3011689W22W26W21W19W16W28W31W29W20W27W18W25W14W13W24W32B11251EW15W17C405C4072134R409C406R410X2C408X1R419R415R27R28R417R4127C3R6R4R5R411 R416R44 C45R43 R42R41EBIC3IC8IC9Q21D1D3D21D22D23D251D252D253D254D255J1D2D401D41Q41D1SWITCH UNITX16-2050-1x (J74-1463-02)IC2VOL-VOL+13541454668ATT123456RSTCLKTIAUDFMAMSRCD23D17D9D8D7D12D11D10D19D16D18D24D15D20D13D14K13K15KS4KS5KS3KS5KI1KI4KI2a77a76a76KDC-MP222KDC-MP4023/GRefer to the schematic diagram for the values of resistors and capacitors.IC Q Address15E24C34G42D6485F95G24E34E21 2H23 4E41 5G350 3BIC Address22JELECTRIC UNIT(X25-9620-xx)SWITCH UNIT(X16-2050-1x)10K L M N O1234567R1C30W101R312R103R414R314R313R210R209R252R408R64R65R205R3R2C31R32R257R254R264R253C410R12R21BEER161R162R105R211R204R33TH1W102BEEBBEEBEBD402Q401Q4Q1Q22D24 D25Q151Q201D257D256D258ELECTRIC UNIT (X25-9620-xx) (J74-1466-12)KDC-MP222KDC-MP4023/GPC BOARD (FOIL SIDE VIEW)a77a76
