Kenwood-KDCMP-222-Service-Manual(2) 电路图 维修手册.pdf

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1、 2002-12 PRINTED IN JAPAN B53-0013-00 (N) 1724 CD RECEIVER KDC-MP222 KDC-MP4023/G SERVICE MANUAL Panel assy (A64-2863-02): KDC-MP222 Panel assy (A64-2874-02): KDC-MP4023 (A64-2881-02): KDC-MP4023G Escutcheon (B07-3022-02): KDC-MP222 Escutcheon (B07-3003-02): KDC-MP4023G (B07-3022-02): KDC-MP4023 Siz

2、e 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/G Remote controller assy (RC-505) (A70-2040-05): KDC-MP222 Mounting hardware assy (J21-9716-03) Screw set (N99-1719-05) Lever (D10-4589-04) Screw set (N99-16

3、10-15) RadioFans.CN 收音机爱 好者资料库 2 TUNER MP3 CH SWITCH UNIT (X16- ) BUFFER RDS DECODER BUFFER EEPROM REMOCON RESET SW WITH LCD DRIVER KEY MATRIX LCD DSI u-COM MPX E-VOL & ACC DET TEL MUTE B.U DET PRE MUTE DRIVER MUTE POWER IC THERMAL PROTECT ACC TEL MUTE BACK UP (REAR) PRE OUT SP OUT SURGE DET SERVOSE

4、RVO+BSW 14V WIRED REMO SUPPLY IC POWER ANT CON P CON RESET SW 5V PANEL 5V SW5V MECHA +B MECHA+ ILL SW ILLUMI IC7 IC2 IC1 IC4 IC3 IC8 IC1 IC2 S-METER AUDIO OUT IFC OUT PLL-DATA PLL-CLK SW5V AM+B A8V SW(SW3) 12EJE SW(SW2) LO/S SW(SW1) MS CLK MS DATA LO.E/LIM M MUTE LO/EJ M STOP M RST SERVO+B A8V BU5V

5、MECHA+ DATA C CH MUTE CH RST REQ H REQ C CH CLK CH-CON DATA H BACK UP QUAL S-METER R DATA R CLK FM AM MP LEVEL CD QUAL AFS CH SW5V SW5V BU5V DSI L CLK L DATAS L CE L DATAL REMO MUTE P-MUTE PHONE ACC DET B.U DET BEEP PS1-0 PS1-1 PS1-2 PS2-0 PS2-2 RST BU5V BACK UP A8V SW5V AM+B ILLUMI A8V BU5V BU5V MO

6、DE FM AM MP3 E-TYPE 1372mV 855mV 3600mV K-TYPE 1800mV 600mV 3600mV P-STBY BU5V TDF DET PANEL BU5V SW5V DATA CLK BLOCK DIAGRAM KDC-MP222 KDC-MP4023/G RadioFans.CN 收音机爱 好者资料库 3 G SWITCH UNIT (X16-2050-1x) Ref. No.FunctionOperation IC1LCD Driver IC2Remote-control sensor IC Q1Key-scan Start SWON when th

7、e base goes “L”. G ELECTRIC UNIT (X25-9620-xx) Ref. No.FunctionOperation IC1System MI-COM IC2E-VOL. & N.C. MPX IC3Power Supply IC IC4Power IC IC6Analog SW (Mute logic) IC8Reset IC“L” : detection voltage below 3.6V IC9CD mechanism 5V AVR Q1SERGE Det.ON when the base goes “Hi”. Q2B.U. Det.ON when the

8、base goes “Hi” during BU applied. Q3ACC Det.ON when the base goes “Hi” during ACC applied. Q4SW 5VON when the base goes “Lo”. Q21SERVO +B AVROutput voltage 7.4V Q22SW 14VON when the base goes “Hi”. Q23SW for power supply ICSW1 terminal of a power supply IC is controlled. Q41MECHA 5V AVR SWON when th

9、e base goes “Lo”. Q151Panel 5V SWON when the base goes “Lo”. Q201Noise buffer Q350Mute driver for Audio mute SWON when the base goes “Lo”. Q351Pre mute SW Audio Pre-output is muted when the base goes “Hi”. Q352Pre mute SW Q401DSI ILLUMI SWON when the base goes “Lo”. COMPONENTS DESCRIPTION KDC-MP222

10、KDC-MP4023/G RadioFans.CN 收音机爱 好者资料库 4 G SYSTEM MICROCOMPUTER UPD703030GC011 (IC1 : X25) pinpin nameI/ODescriptiontruth tableProcessing Operation 1PLL CLKI/OClock output to F/E 2AFSONoise detection time constant switching terminalFM seek/during/AF search : L, receiving : H 3TDF DETITDF panel detecti

11、on terminalPanel detached : H, panel attached : L 4IC2 SDAI/OData input and output terminal with E-VOL 4IC2 SDAI/OData input and output terminal with CD mechanism 4IC2 SDAI/OData input and output terminal with E2PROM 5IC2 SCLI/OClock output to E-VOL 5IC2 SCLI/OClock output to CD mechanism 5IC2 SCLI/

12、OClock output to E2PROM 6VDD- 7VSS- 8-ONot used 9BEEPOBeep output terminal 10REMOIRemote control input 11R QUALIRDS decoder quality input terminal 11-ONot usedWith no RDS and destination is output L 12R DATAIRDS decoder data input terminal 12-ONot usedWith no RDS and destination is output L 13L CEOC

13、E output to LCD driver 14-ONot used 15L INHOReset output to LCD driver Display light off, KEY reset : L Display light on, KEY scan : H 16DSIODSI control terminalDSI light on : H, Light off : L 17-ONot used 18TEST- 1921-ONot used 22MOSWOCD mechanism motor IC switcheLoading/Eject/Break : H 23LO/EJI/OC

14、D mechanism Loading/Eject switcheStop/Break : Hi-Z Loading : L Eject : H 24M STOPOStop request to CD mechanism 25M RSTOReset output to CD mechanismUsually : H, Reset : L 26MUTEI/OMute terminalL : MUTE OFF, H : MUTE ON 27LO.E/LIM SW (SW3)ICD Down Switch detection terminalH : chucking 28M MUTE LIMUTE

15、request from CD mechanismL : MUTE request 29M MUTE RIMUTE request from CD mechanismL : MUTE request 30-ONot used 31RESETIUsually : H, Reset : L 32XT1ISub clock 32.765kHz 33XT2ISub clock 32.765kHz 34REGC-Ceramic capacitor connected to the pair grounds 35X2IMain clock 20MHz 36X1IMain clock 20MHz 37VSS

16、- 38VDD- 39CLKOUT- 40IC2 TYPE1IE-VOL setting switching terminal 41IC2 TYPE0IE-VOL setting switching terminal 42-ONot used 43TYPE1IDestination switching terminalr 44TYPE0IDestination switching terminalr MICROCOMPUTERS TERMINAL DESCRIPTION KDC-MP222 KDC-MP4023/G 5 pinpin nameI/ODescriptiontruth tableP

17、rocessing Operation 45CD MECHA+BI/OPower supply control terminal for MP3ON : L, OFF : Hi-Z 46SW5VI/OControl terminal for switch5VON : L, OFF : Hi-Z 47PS2-0OControl terminal for power supply ICw 48PS2-1OControl terminal for power supply ICw 49PS1-0OControl terminal for power supply ICq 50PS1-1OContro

18、l terminal for power supply ICq 51PS1-2OControl terminal for power supply ICq 52BU DETIBU detection terminalBU detection : L, with no BU : H 53ACC DETIACC detection terminalACC detection : L, with no ACC : H 54-ONot used 55BVDD- 56BVSS- 57,58-ONot used 59P-MUTEOPOWER IC MUTE output terminalPOWER OFF

19、 : L, ALLOFF : L, TEL MUTE : L 60P-STBYOPOWER IC STBY output terminalPOWER IC ON : H, OFF : L 61,62-ONot used 63PRE MUTEOPREOUT MUTE output during momentary power down L, When M-MUTEL : L 6467-ONot used 68LX-RSTOReset output to external unit Usually, L after system RST returned,after more than 400m

20、sec H, and L 69LX-CONOControl output to external unitON : H, OFF : L 70AVCONTOAD reference voltage control outputduring motion : H 71AVDD- 72AVSS- 73AVREF-Connection with 70pin 74PHONEIPHONE detection terminal TEL MUTE : 1V orless, NAVI MUTE : more than 2.5V 74-INot used (with no PHONE destination)

21、7581-INot used 82S-METERIS-meter detection terminalDependant for control use of tuner 83NOISEIFM noise detection terminalDependant for control use of tuner 84IFC-OUTIF/E IFC OUT input terminalDependant for control use of tuner 85LX-MUTEIMUTE request to external unitH : MUTE ON, L : MUTE OFF 86LX-REQ

22、MORequest output to external unitRequest detection : L 87R CLKIRDS decoder Clock input terminal 87-ONot usedDestination with no RDS : output L fixed 88LX-REQSIRequest intput to external unitRequest detection : L 89KEY-REQIRequest of communication from LCD driverL : KEY input 90LO.S SW (SW1)ILoading

23、start switch detection terminalLoading start : L 9112EJE SW (SW2)I12cmDISK EJECT position detection switch terminal12cmDISC : L 92-ONot used 93-ONot used 94LX-DATASIData input from external unit 95LX-DATAMOData output to external unitHolding the last 96LX-CLKI/OClock output and input terminal with e

24、xternal unit 97L DATALIData input from LCD driver 98L DATASOData output to LCD driver 99L-CLKI/OClock output to LCD driver 100PLL DATAI/OData output and input terminal with F/E MICROCOMPUTERS TERMINAL DESCRIPTION KDC-MP222 KDC-MP4023/G 6 MICROCOMPUTERS TERMINAL DESCRIPTION Truth table 1 PS1-0PS1-1PS

25、1-2AUDIOP-CONP-ANT LLLOFFOFFOFF H(L)L(H)LONOFFOFF HHLONONOFF HHHONONON Truth table 2 PS2-0PS2-1ILLUMIFM+BAM+B LLOFFOFFOFF H (L)L (H)ONONOFF HHONOFFON Truth table 3 MOSWLO/EJCD mechanism operation LHLoad HHEject -LLo/Ej invalid truth Hi-ZHBrake Truth table 4 (destination setting) destination ports mo

26、deldestination TYPE2TYPE1TYPE0 KDC-MP222K-00 KDC-MP4023M (E)-01 KDC-M4524/G/Y/GYE/E2-10 1. How to enter the test mode While holding the Preset 1 and Preset 3 keys, reset the unit. 2. How to exit from the test mode Reset the unit, ACC OFF, power OFF and Panel detached. (Note) The test mode cannot be

27、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 of switching function. SYSTEM Q: Flat BEEP: When pressing any keys, the buzzer generates a beep

28、 at any time. SYSTEM Q MENU: OFF 4. Special display in Tuner mode When any of the following messages is displayed in Tuner mode, the F/E may be abnormal. TNE2P NG : The EEPROM is set to the default (un- stable values) because the F/E was shipped without passing through the adjustment process, etc. T

29、NCON NG : Communication with the F/E is not pos- sible. TEST MODE KDC-MP222 KDC-MP4023/G 7 5. Forced switching of K3I Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO Forced Wide Forced Middle Forced Narrow AUTO. The initial status is AUTO and the display shows these modes as

30、 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 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 ke

31、y jumps to the following track 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 previous track number to the track being played. When the number of total trucks of the MP3 disc is less than 9, 1st truck is pla

32、yed. When the disc media is CD, a short press of the Preset 1 key jumps to the track number 28. 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. Fader is selected to the initial item.

33、 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/Right Max with the Track Up/Down keys. Fader is adjusted in 3 steps of Rear Max/Center/Front Max

34、 with the Track Up/Down keys. Bass f/Bass Q/Bass EXT/Middle f/Middle Q/Treble f are not death with by the audio adjust. 8. Menu-related specifications A short press of the PLAY/PAUSE key initiates the Menu mode. Pressing the DNPP/SBF key on the remote initiates the Menu mode. Continuous holding of a

35、 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 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 se

36、cond. (The CD mechanism is not acti- vated at this time.) 10. Special display when the display is all on Pressing the Preset keys while the power is ALL OFF dis- plays the following information. Version display PRESET 1 (8 digits, Month/Day/Hour/Minute) (Display) SYSxxxxx : System microcomputer Shor

37、t press : View power ON time. (The All OFF period is not counted.) PRESET 3 Long press/hold : Clear power ON time at the power ON time displaying. (Display) PonTim xxxxx Max. 60000 (hours) Short press : Display CD operation time. PRESET 4 Long press/hold : Clear CD operation time at the CD operation

38、 time displaying. (Display) CDTimxxxxx Max. 60000 (hours) Short press : Display CD ejection count. PRESET 5 Long press/hold : Clear CD ejection count at the CD ejection count displaying. (Display) EjeCnt xxxxx Max. 60000 (times) Short press : Display Panel open/close count. PRESET 6 Long press/hold

39、: Clear Panel open/close count at the Panel open/close count. (Display) PnCnt xxxxx Max. 600000 (times) 11.Other specifications LINE MUTE inhibit time is 1 second from 10 second when start up the test mode. 12.Switching the frequency span (K/M type) While holding the preset q key and preset t keys,

40、reset the unit. 13.Response to OEM setting (destination of elec- tronic volume setting) S03F/E models are response to OEM models option at put in -com 2 pin. Its setting re following steps. TEST MODE IC2-TYPE0 IC2-TYPE1 Description (41pin)(40pin) LowLowqTrade model (initial quantif) LowHighwTrade mo

41、del (CRSC Change) HighLoweOEM model-ready CRSC change HighHigh rOEM model-ready CRSC & de-emphasis KDC-MP222 KDC-MP4023/G 8 ABCDE 1 2 3 4 5 6 7 + TEST IFC NOISE SMETER RST SCL SDA C115 C117 C211 C255 C256 C258 C309 R8 R355 R356 C201 C202 C251 C252 C253 C254 C257 C301 C302 C303 C351 C352L3 L5 L6 L7 L

42、8 L10 R9 R31 R171 R172 R173 R174 R175 R176 R180 R181 R182 R183 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R351 R352 R357 R358 R374 X3 W12 W9 W7W4 W6W3 13 9106751 1 8 9 25 242 11 12 8432 W2 W10 W11 W8W5 W1 W W15 W17 R202 9 8 C118 C114 16 1 R112 R113 R114 C116 C203R201 R203 C204 C206 C212

43、C213 14 R207 R208 R403 R153 R52 R102 R104 R154 R206 R106 R101 100 1 R152 R51 C40 R54 R53 R58 R56 C407 R63 224 231 151 1 24 1 2 142 R160 R60 R61 R62 R55 R59 2526 R409 R420 R410 C40 X1 R419 R415 28 1 C210 R256 15 14 C205 58 14 1 R404 R315 R401 C111 C304 76 75 8 7 R402 R405 R406 R317 R255 R27 R28 R417

44、R10 BEE C5 R11 R24 R251 R26 R25 50 R412 C4 R7 C3 R6 R4 R5 R411 EB EB EB IC4 IC7 IC1 IC2 IC10 IC6 J4 A1 CN2 J3 J2 D31 D51 D52 D201 D202 D251 D252 D254 D255 D301 D302 D303 D304 D305 D306 D307 D308 D309 D310 D311 J5 P1 D151 D155 D156 D157 D158 D159 D160 D161 D162 D2 D4 D203 D206 D269 D270 D271 D154 D15

45、3 D152 CN4 Q350 Q23 Q3 D26 Q2 ELECTRIC UNIT (X25-9620-xx) (J74-1466-12) KDC-MP222 KDC-MP4023/G PC BOARD (COMPONENT SIDE VIEW) M L JIHGF 1 2 3 4 5 6 7 9 L1 GND RST VDD C21 C43 C44 L12 C26 L11 C1 C41 C42 C22 C23 C24 C25 C27 C28 C29 C409 R8 R22 R23 R13 31 6 1 R407 W12 W23 W30 1 16 8 9 W22 W26 W21 W19 W

46、16 W28 W31 W29 W20 W27 W18 W25 W14 W13 W24 W32 B 112 51 E W15 W17 C405 C407 2 1 3 4 R409 C406 R410 X2 C408 X1 R419 R415 R27 R28 R417 R412 7 C3 R6 R4 R5 R411 R416 R44 C45 R43 R42 R41 EB IC3 IC8 IC9 Q21 D1 D3 D21 D22 D23 D251 D252 D253 D254 D255 J1 D2 D401 D41 Q41 D1 SWITCH UNIT X16-2050-1x (J74-1463-

47、02) IC2 VOL- VOL+ 13 54 1454668 ATT1 23456RSTCLK TI AUD FM AM SRC D23 D17 D9 D8 D7 D12 D11 D10 D19 D16 D18 D24 D15 D20 D13 D14 K13 K15 KS4 KS5 KS3 KS5 KI1 KI4 KI2 M L L KDC-MP222 KDC-MP4023/G Refer to the schematic diagram for the values of resistors and capacitors. ICQAddress 15E 24C 34G 42D 64D 85

48、F 95G 24E 34E 212H 234E 415G 3503B ICAddress 22J ELECTRIC UNIT (X25-9620-xx) SWITCH UNIT (X16-2050-1x) 10 KLMNO 1 2 3 4 5 6 7 R1 C30 W101 R312 R103 R414 R314 R313 R210 R209 R252 R408 R64 R65 R205 R3 R2 C31 R32 R257 R254 R264 R253 C410 R12 R21 BEE R161 R162 R105 R211 R204 R33 TH1 W102 B E E B BE EB E

49、B D402 Q401 Q4 Q1 Q22 D24 D25 Q151 Q201 D257 D256 D258 ELECTRIC UNIT (X25-9620-xx) (J74-1466-12) KDC-MP222 KDC-MP4023/G PC BOARD (FOIL SIDE VIEW) M L 11 C112C113 C356 R115 R111 C106 EB EBEB Q101 Q351 Q352 M L KDC-MP222 KDC-MP4023/G D30 J1 SWITCH UNIT X16-2050-1x (J74-1463-02) R22 C9 R30 R28 C12 C1 R16 R21 R1 R18 C11 EB 142 151 KS3 K12ILL+B ILL GND RESET KS5KI4 KI3 IC1 D25 Q1 R23 R26 R19 R17 C5 1 25 26 5051 75 76 100 C4 C2R15 R14 C3 C10 R36 R32 R33 R34 R35 R31 R25 R24 C6 R20 KS2C7 R3 D32 D31 VLCD1 L-INH PANEL-5V DO CE CL DI REMO D-GND KI5 SW5