Kenwood-KDC-2019-Service-Manual电路原理图.pdf
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1、 2001-12 PRINTED IN JAPANB51-7874-00 (N)1754CD RECEIVERKDC-2019/2019V/217/217S/219/29MR/2020/3020/4020SERVICE MANUALCOMPACTDIGITAL AUDIORDMLOUD REPSCANOFFKDC-XXXXCRSCAMEAUTOADJCLKAUD50Wx4Panel assy(A64-2544-02): KDC-219(A64-2545-02): KDC-2019(A64-2546-02): KDC-29MRDC cord(E30-4783-05)(E30-4784-05)Le
2、ver(D10-4589-04)x2Escutcheon(B07-3054-02): KDC-2019/2019VKDC-219/2020(B07-3055-02): KDC-29MRKDC-3020/4020The CD mechanism infomation is not in this sarvice manual.Please, refer to sarvice manual X92-4030-0x (B51-7867-00).CD MD-Changer ControlM. RDMCOMPACTDIGITAL AUDIORDMLOUD REPSCANOFFKDC-XXXXCRSCAM
3、EAUTOADJCLKAUD45Wx4Panel assy(A64-2566-02): KDC-217(A64-2695-02): KDC-217SEscutcheon(B07-3054-02): KDC-217/217S(A64-2547-02): KDC-2020(A64-2548-02): KDC-4020(A64-2680-02): KDC-3020(A64-2711-02): KDC-2019V Plastic cabinet assy(A02-1486-13)Mounting hardware assy(J21-9641-13)Screw set(N99-1719-05)Remot
4、e controller assy(A70-2024-05)Screw set(N99-1610-15)Stay(J54-0606-04)Depends on the model. Refer to the parts list.CD mechanism extension cord : W05-0618-00KDC-2019/V/217/S/219/29MR/2020/3020/40202BLOCK DIAGRAMCDIC4IC12IC1POWER ICTUNERFM+BAM+BSW5VBU5VA8VSERVOCHBACK UPE-VOL & MPXu-COMBU5VTEL-MUTEACC
5、DET.BU DET.IC2SW5VE2PROMSW5VSERVO SW14VIC7IC2IC1PRE OUTSP-OUTACCTEL-MUTEBACK-UPP-CONANT-CONTPOWER SUPPLYMUTEPRE MUTEDSIBU5VREMOTESW5VPAN DET.PAN5VPAN5VLCD DRIVERKEY MATRIXWithILLUM SWA8VCONTROLBU5VMARINE CN.ANT-CON DET.P-CON DET.FM DET OUTAM DET OUTREQUESTLO/DXPLL-CLKPLL-CES-METERPLL-DATASDMSDAMSCLK
6、SW2SW1SW3M MUTERSTSTOPLO/EJMO SWRSTCH-CONMUTEDATA CREQ HDATA HCLKREQ CFMAMCDCHAFSNOISE DETLEVELDATASMUTELO/DXPLL-DATAPLL-CLKAFSNOISES-METERSCLSDSDAPLL-CEEN2EN3EN1PC DETPA DETCLK DATALCE REMOPANELDSIRESSDASCLP-CONP.ANTFM+BVP2AM+BAUDIOILLUMBU5VSW1SW2203mV170mV1200mV1200mV382mVK:E:382mVJ:(K)FM(E)(K)(J)
7、(J)AM(E): 1605mV: 1276mV: 561mV: 1700mV: 561mV: 792mV: 3529mVCD.CHLCDKDC-2019/V/217/S/219/29MR/2020/3020/40203MICROCOMPUTERS TERMINAL DESCRIPTIONSYSTEM MICROCOMPUTER PD780058GC-XXX (IC1 : X25)Pin No. Pin Name I/O Purpose Processing in STBY Mode1 PANEL I Panel detection Hi-Z2 8EJE SW *1 I 8 cm disk e
8、ject end detection switch L, L when the 8 cm CD compatibility is not provided.3 NC O Not used L4 AVss - GND potential (for A/D and D/A) -5 L-RST O LCD driver reset H, L when the panel is detached or with 7-segment output.6 L-CE O LCD driver chip enable L, L is output when the panel is detached.7 AVR
9、EF1 I 5V power supply (D/A converter reference voltage) -8 NC I Not used Hi-Z9 PLL-DATA I/O F/E (IC3) communication data L10 PLL-CLK O F/R (IC3) communication clock L11 L-DATAL I LCD driver communication data (LCD) Hi-Z12 L-DATAS O LCD driver communication data (SYSTEM) L, L is output when the panel
10、 is detached.13 L-CLK O LCD driver communication clock H, L is output when the panel is detached.14 R-DATA I RDS DATA Hi-Z, L when RDS is not available.15 R-QUAL I RDS QUAL Hi-Z, L when RDS is not available.16 CH-DATAC I 5-wire communication data (CH) Hi-Z, L when CH is not available.17 CH-DATAH O 5
11、-wire communication data (HEAD) L, L when CH is not available.18 CH-CLK I/O 5-wire communication clock Hi-Z, L when CH is not available.19 CH-REQH O 5-wire CH request (HEAD) H, L when CH is not available.20 PLL-CE O F/E chip enable L21 AFS O Noise detection time constant switching L22 LO/DX O Local
12、seek switching L2326 NC O Not used L27 SD I Station detection Hi-Z28 CH-CONT O 5-wire communication CH ON output L, L when CH is not available.29 TYPE REF O Destination type and servicing setting 5V output L30 TYPE2 I Destination type setting Hi-Z31 TYPE1 I Destination type setting Hi-Z32 TYPE0 I De
13、stination type setting Hi-Z33 Vss1 - GND potential (for other parts than ports and analog circuitry) -34 IC2TYPE1 I Servicing pin (SEL1), normally “L” Hi-Z35 IC2TYPE0 I Servicing pin (SEL0), normally “L” Hi-Z36 DATA I/O IC2, CD mechanism and F/E communication data L37 CLK O IC2, CD mechanism and F/E
14、 communication clock L38 MUTE O Muting control output L, 15 sec. after power OFF.39 P-MUTE O PWR IC muting output H, 15 sec. after power OFF.40 SVR O SVR control output L41 P-STBY O PWR IC standby output L42 SW5V O SW5 control output “H” in 10 sec. after power OFF.43 B.U-DET I B.U. detection Hi-Z44
15、ACC-DET I ACC detection Hi-Z45,46 NC O Not used L4749 PS1-0PS1-2 O Power supply IC AUD/P.CON/P.ANT SW L50 BEEP O Buzzer output L51,52 PS2-0,PS2-1 O Power supply IC ILL/AM/FM SW L53 DSI O DSI control output L, H/L when panel is detached. FIX output is L.KDC-2019/V/217/S/219/29MR/2020/3020/40204MICROC
16、OMPUTERS TERMINAL DESCRIPTION / ADJUSTMENTPin No. Pin Name I/O Purpose Processing in STBY Mode54 LOE/LIM SW I CD mechanism Down & Limit detection Hi-Z55 MOSW O CD mechanism motor switching L56 LO/EJ I/O Lo/Ej switching Hi-Z57 M-STOP O Mechanism COM stop output L58 M-RST O Mechanism COM reset output
17、H59 M-MUTE I Mechanism COM mute input Hi-Z60 RESET I System reset input Hi-Z61 REMO I Remote control input Hi-Z62 R-CLK I RDS CLOCK Hi-Z, L when RDS is not available.63 CH-REQC I 5-wire CH request (CH) Hi-Z, L when CH is not available.64 LOS SW I Loading SW detection Hi-Z65 KEY-REQ I Key input detec
18、tion Hi-Z66 12EJE SW I 12 cm disc detection Hi-Z67 Vss0 - GND potential (for ports) -68 VDD1 - Positive power supply (for other parts than ports and analog circuitry) -69 X2 - Main system clock oscillation -70 X1 I Main system clock oscillation -71 IC - Flash uCOM write -72 XT2 - Not used -73 XT1 -
19、Not used (Connected to 5V power supply) -74 VDD0 - Positive power supply (for ports) -75 AVREF0 I 5V power supply (A/D converter reference voltage) -76 S-METER I S-meter input Hi-Z77 PHONE I Navigation muting 2.5V or more, Telephone muting 1V or less. Hi-Z, L when TEL is not available.78 NOISE I FM
20、noise detection Hi-Z, L when RDS is not available.79 NC O Not used L80 AVCONT O A/D reference voltage control LNo. ITEM INPUT SETTINGSTUNER (RECEIVER) ALIGNMENTALIGN FORSETTINGS POINTSFM SECTION98.1MHz TEST MODE : ONWhile holding preset “1” key, press and1SD 0 dev FMPreset “1” key, and hold preset “
21、6” key for a few seconds.35dB (ANT input) 98.1MHzpreset “6” key “1111” is good.“0000” is not good.AM SECTION990kHz TEST MODE : ONWhile holding preset “1” key, press and(1) SD 0% mod AMPreset “1” key, and hold preset “6” key for a few seconds.35dB (ANT input) 990kHzpreset “6” key “1111” is good.“0000
22、” is not good.TEST MODE : ON While holding the FM key and preset “6” key, reset the unit.TEST MODE : OFF Reset the unit.ADJUSTMENTA B C D E F G H I J123456765PC BOARD(COMPONENT SIDE VIEW)Refer to the schematic diagram for the values of resistors and capacitors.IC1D267D264D268D13 D11Q20Q201IC2IC6Q102
23、Q224Q223Q222Q251Q51Q50Q221Q101Q53IC8IC11IC12D102Q40Q10Q70J1X25-9142-7x (J74-1368-12)CN3CN1CN2J2J3A1D108Q55D1D403D265D266D263D261D262D14D12D110D251D101D103 D104D253D252D109D106D107J5P1D30D202 D201D10D50D20D404D402D401D407D411D410D409IC4J4D111D70D51IC7D40X25-9120-xx/913x-xx (J74-1290-12)R56W157R123C21
24、1W160C208C104C62W156C225R139C307W163W164C226W167W168C59R57W166C356C355TH1R127R126R128R130R129R125R122R138R137R143R144R132R131R133R140R134R119R104R103R105R107R106R102R136R135C207R67R115R114R116R118R117R113R108R110R112R111R261R260/W178R263R255R254/W176R256R258R257R413R412R414R415C30C21R202R201R203R205
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