Kenwood-KDC-2021-SA-Service-Manual电路原理图.pdf

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1、 2001-12 PRINTED IN JAPANB51-7873-00 (N)1930CD RECEIVERKDC-2021SA/SGSERVICE MANUALCOMPACTDIGITAL AUDIORDMLOUD REPSCANOFFKDC-2021SMONOAMEAUTOADJCLKAUD45Wx4Panel assy(A64-2564-02)DC cord(E30-4790-05)Lever(D10-4589-04)x2Escutcheon(B07-3054-02)The CD mechanism infomation is not in this sarvice manual.Pl

2、ease, refer to sarvice manual X92-4030-0x (B51-7867-00).Plastic cabinet assy(A02-1486-13)Mounting hardware assy(J21-9641-13)Antenna adaptor(T90-0523-05)Front glass(B10-4141-01)CD mechanism extension cord : W05-0618-00KDC-2021SA/SG2BLOCK DIAGRAMCDIC4IC12IC1POWER ICTUNERFM+BAM+BSW5VBU5VA8VSERVOCHBACK

3、UPE-VOL & MPXu-COMBU5VTEL-MUTEACC 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-C

4、LKPLL-CES-METERPLL-DATASDMSDAMSCLKSW2SW1SW3M MUTERSTSTOPLO/EJMO SWRSTCH-CONMUTEDATA CREQ HDATA HCLKREQ CFMAMCDCHAFSNOISE DETLEVELDATASMUTELO/DXPLL-DATAPLL-CLKAFSNOISES-METERSCLSDSDAPLL-CEEN2EN3EN1PC DETPA DETCLK DATALCE REMOPANELDSIRESSDASCLP-CONP.ANTFM+BVP2AM+BAUDIOILLUMBU5VSW1SW2203mV170mV1200mV12

5、00mV382mVK:E:382mVJ:(K)FM(E)(K)(J)(J)AM(E): 1605mV: 1276mV: 561mV: 1700mV: 561mV: 792mV: 3529mVCD.CHLCDKDC-2021SA/SG3MICROCOMPUTERS TERMINAL DESCRIPTIONSYSTEM MICROCOMPUTER uPD780058GC-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

6、disk eject 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、.7 AVREF1 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

8、 panel 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-DAT

9、AH O 5-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

10、Local 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 TYPE

11、0 I Destination 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 a

12、nd F/E 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 H

13、i-Z44 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-2021SA/SG4MICROCOMPUTERS TERMINAL DES

14、CRIPTION / 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 H59 M-MUTE I Mechanis

15、m 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 detection Hi-Z66 12EJE SW

16、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 - Not used (Connected t

17、o 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 noise detection Hi-Z,

18、 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 “6” key for a few seco

19、nds.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” is not good.TEST MO

20、DE : 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 D11Q20Q201IC2IC6Q102Q224Q223Q222Q251Q51Q5

21、0Q221Q101Q53IC8IC11IC12D102Q40Q10Q70J1X25-9142-7x (J74-1368-12)CN3CN1CN2J2J3A1D108Q55D1D403D265D266D263D261D262D14D12D110D251D101D103 D104D253D252D109D106D107J5P1D30D202 D201D10D50D20D404D402D401D407D411D410D409IC4J4D111D70D51IC7D40X25-9120-xx/913x-xx (J74-1290-12)R56W157R123C211W160C208C104C62W156C

22、225R139C307W163W164C226W167W168C59R57W166C356C355TH1R127R126R128R130R129R125R122R138R137R143R144R132R131R133R140R134R119R104R103R105R107R106R102R136R135C207R67R115R114R116R118R117R113R108R110R112R111R261R260/W178R263R255R254/W176R256R258R257R413R412R414R415C30C21R202R201R203R205R204C103C202C206C142C

23、106C102R251/W177R222R221R223R224C354R12R23R22C404R11C305C303C302R10R52R58R51R31C209C210R32W179CP3C352W162W161R53C64C310R54C60R55C61CP1W151W158C40W152C309W165R264CP2W159C105R121W155W150C500R71R72C228R73W169W171W172W173W174C501R142C311C312C3138061402112041602143178141458114152811689EBEBEBEEEBBEBEEBBEE

24、BEBEBEBEBEBEBW53W54W142W66W79C58W38C1W82L1W108W119W85W112W132W81W137W58W44W55W37R404 R402R408R411R409R410R407R405R406 R403R401R231 R232W91W1R227 R228W3W47W14W87W120C403C402W61C253W39C252 C254 C251W83C401R253W50R252W86W90W93W124R301C63W114W84R28R25R21R20R30R165R166R167R101R163R164R168R172R229R230R169

25、R170 R171X1X2W41W129R145W56R352R351R259R353R226R225W17R50L4L305L306L304L101L303L201C222C221C223C51C52C53C55C56C54C205 C204C353C257C351C224C258C203C255C101C304C201C256C57C301C306W6W5W51W57W60 W45W48W25W35W31W23W30W27W22W28W40W42W43W13W15C50W67W115W102W133W122W136W135W113W125W134W111W104W103W88W89W70W

26、74W65W68W80W19W46W75W52W49W96W92W101W71W69W18W12W29W2W20W4W10W11W7W21W9W100W72W32W26W95W121W73W77W76W59W24W33W34W36W138W105W62W64W78W130W128W131W94W99W116W117W98W97W106W110W127W107W63W139L2W140 W141W143R173R141W169 168 125 1224 2348912 11 13106157211312415114212122 2112BE(FOIL SIDE VIEW)KI3KI1KI5KI2

27、KI4KS3KS4KS5KS2VOLSRCATT123456RSTCLKTIAUDAMFM139D19ED1D20D13D6D7D9D8D5D2D1D4D3D17D18D12D10D11IC2X16-1482-7x (J74-1285-12)X16-1460-xx/R21R22C6C7C9R18R13R12R15R14R10R3R2R5R4R20C5R19R16R17C3 C2 C1 R8 R7C4PAN5VRESKI2KI3KI1KI4KS5SW5VL-CEDATALREMOILL GNDDATASL-CLKLED+BPAN-SWKS2KI5KS4D-GNDESDGND14211511633

28、4832 176449BEKS3Q1IC1J1D22X16-1482-7x (J74-1285-12)X16-1460-xx/X16-1482-74X16-1482-75IC Q Address15D16DIC Q Address15F24H42H73E84GIC Q Address11 5E12 4H10 3F20 3G40 3IIC Q Address50 4G51 3E55 2E70 3F101 6EIC Q Address102 6F223 2I224 2I251 3GX25-9142-76A B C D E F G H I J123456747K10K10K47K4.7K4.7K22

29、K22KILL+BILL+BILL+BILL+BILL+BBU5VSW5VSW5VSW5VSW5VSW5VSW5VSW5VSW5VSW5VSW5VSW5VSW5V+5V +5V+5V+5V+5V+5V+5V+5V+5V+5V+5VILL+BILL+BILL+BBU5VBU5VBU5VBU5VBU5VBU5VBU5VBU5VBU5VAUDIO+BAUDIO+BSW5VFM+B AM+BFM+B AM+BFM+BAM+BAUDIO+BAUDIO+BAUDIO+BAUDIO+BAUDIO+B AUDIO+BAUDIO+BAM+BFM+BAM+B FM+B+B+B+B+B+B+B+B+B+B+B+B

30、+B+B60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 4140393837363534333231302928272625242322211 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 19 206162636465666768697071727374757677787980RESETM-MUTEM-RSTM-STOPLO/EJMO SWLOE/LIM SWDSIPS2-1 PS2-0 BEEP PS1-2 PS1-1 PS1-0N.C N.CACC-DETB.U-DETSW 5VP-S

31、TBYSVRP-MUTEMUTECLKDATAIC2 TYPE0IC2 TYPE1VSS 1TYPE0TYPE1TYPE2TYPE REFCH-CONSDN.CN.CN.CN.CLO/DXAFSPANEL8EJE SW N.C AVSSL-RST(ONLY14seg)L-CE AVREF1N.C PLL-DATAPLL-CLK L-DATALL-DATASL-CLK R-DATAR-QUAL CH-DATACCH-DATAHCH-CLK CH-REQH PLL-CEREMOR-CLKCH-REQCLO/S SWKEY-REQ12EJE SWVSS 0VDD 1X2X1ICXT2XT1VDD 0

32、AVREF0S-METERPHONENOISEN.CAV CONT1 3 5 7 911 13 15 17 19 21 23 25TABOUT2- OUT2+ OUT1- OUT1+ IN 1 S GND IN 3 OUT3+ OUT3- OUT4+ OUT4- CD2 4 6 8 10 12 14 16 18 20 22 24PGND STBYVCC 2PGNDSVRIN 2 IN 4AC GNDPGNDVCC 1 MUTEPGND12345678QUALRDDAVREFMPXOSELGNDARIFI 1 OUT161514131211109RDCLT57OSCOOSCIVCCEXTREST

33、MF SEL1234VSS8765VCCWPSCLSDA16 15 14 13 12 11 10 9REAR Lch+REAR Lch- REAR Rch-REAR Rch+NCPHONENCB.U.FRONTLch+FRONTLch-FRONTRch-FRONTRch+P-ANT P-CONACC GND12345678910111213141516171819202122D OUT12EJE SWLO/S SWMS CLKMSDA8EJE SWN.CBU 5VD GNDM MUTEN.CM RSTM STOPAUDIO +BLchGNDRchLO/EJMO SWSERVO +BSERVO

34、GNDLOE/LIM SW123456789101112131415161718192021222324RF GNDFM ANTAM ANTFM +BAM +BAM LO/DXFM LO/DXIF SELECTRDS OUTREQUESTK2I-VTHVCO GNDFM SD OUTFSD OUTFM DET OUTAM DET OUTCOMMON +BIF GNDHI UP ADJPLL CEPLL DATAPLL CLKP-ON 5VDIG GND4BU 5VILLUMSW 2SW 11112109VCCAUDIO +BAM +BFM +B8765P-ANTP-CONGND231V BU1

35、 2345678FUSEL1FL+ FL-RL+ RL- RR-FR- RR+FR+3300u16+C182KR7136KR72100KR7330KR1010KR111K 2.2KR104R105 470R121 2.2K R107 2.2KR413R412R106 100KR108 2.2KR58R110R135 R136R137 R138R139 R140R113 47KR115 1K R116 10KR118 10KR117 1KR259R119 47K38R114 47K47K47K47K 47K47K47K4.7KVSS432VCC110KCP1C103 0.1R125 1KCP31

36、K 2.2KCP2R122 100R67 10KR255 33K47K100KR126R127R128R129R13015PC1046.8KR13115PC105X12.2M2.2KR1231K2.2K2.2K4.19MHz22KR13459 545758 555652 4741646663611 5 6910151411 12 132022212740 392.2KR35310PC35610PC3554.332MHzC352 330P10u6.3+C3512.2KR3512.2KR352X2+C35310u6.30.01C3541415RL+RL- FL- FL+FR+ RR+FR- RR-

37、C2530.22u504.7KR2534.7KR2521KR256C2520.22u50R263R261R260750R2583.6KR257TH14.7KR2540.22u50C2540.22u50R251C2514.7KC256+1u50C255Q251+RL RR FR50FL39CH CONB.UDATACREQ HMUTEGNDRSTRchA GND84126 A. GND45 MUTECH-CON12 LchCLK13DATA CDATA H101123B.UGND1 REQ HRchREQ C89RST773116210519DATAHREQ CCLKLch11131310961

38、2 3752418R404 100R405 4.7K R406 4.7K R407 4.7K4.7 10R403 R402R409 4.7KR401 10R410 100 R411100R408 4.7K100u10+ 1u50 + 1u50 +7519 28 16 63181710u16C224 +270R224100R23230KR228100R23130KR22710u16C223 +270R223RL RR3 42112 11VDD1314VSS65 7910 8100KR4150.01C404C40 0.01R26410u16C53C57 220u16+10u25+C55100u16

39、+C5810u50C56+10u16+C5410u16+C5210u25+C5022K474.7KR28W166W143W179W177W141W176W178W1403.3KR2010KR2233KR211/2W0.01C21100KR23100KR1247KR515.6KR50524.7uHL101L2C102 0.01+C101100u6.31.5KR57+C6322u1647KR31 0.01C30 22KR3210KR304.7KR1434.7KR14166 55SDASCL64 59 58 57 56 54100KR144432.2KR1450.1C1420.01C22540415

40、2mHL4L303 4.7uHL304 4.7uH0.01C302100u10+C3010.01C303AMFM222776L3050.01C305+C304100u10R3012.292010L3064.7uH4.7uH38604.7K19181716286534250 42764R168 1KPANELESD-GL-DATALL-DATASREMOSW 5VL-CEL-CLKR165 470R166 1KR167 100R170 1KR164 470R171 47R172 1K1415 11121389101261 11136LAMP+BLED +BRSTL-RESPAN5VILL-GND

41、D-GNDR169 1K45672310R1631156043 2.2u500.14.7KR203AMFM4.7KR2022.7KW2143SDA SDAAFS15 14MP OUT0.1OUT LLEVELMP IN1312C2070.01511AMMPX10S MUTE16QUALOUT R1718SCL19SCLCD GND7789PH-CDL656CDR5202221VDDGND4 2.2u50+RC204+LOUT RLOUT RR23262524OUT FROUT FLRLRRFRFLVREFCREF1C2032.2u50C2052+28AC OUT LAC OUT R270.01

42、C202 C201 47u10+SCLSDA2118434477774344L2014.7uH0.47C206 R201R10124053R2041KR2054.7K17+C257 1u501u50+C2582.2KR103C208C210 0.033C211 150PC209+C30610u10C3070.01C3090.01100K100KR102C228 0.01C402C403 C401100KR414R132C1064700PR133 160K2.2K1817KEYKEY+B+BD12D114.7KR250V5V0V5V0V5V5V0V0V5V0V5V0V5V0V5V5.0V0V5V

43、0V0V5V5.0V0V0V5V0V0V5V5.0V0V or 5.0V0V or 5.0V0V or 5.0V0V5V5V0V5V0V5.0V0V0V or 5.0V0V5V0V5V5V0V5V0V5V0V0V5V0V5V0V5.0V0V5.0V5V0V0-4.0V0.6-4.1V2.2-4.5V5V0V5V0V2.4V0V5.0V7.4V 7.3V 7.2V7.2V0V 0V 0V 0V 0V 0V5.0V5.0V0V0V0V 0V 0V0V5.0V0V5.0V0V3VD14VDD135710.3V5.0V14.3V8.1V7.9V8.1V14.0V14.0V0V7.3V0V4.9V14.

44、4V0V7.2V 7.2V0V7.2V7.2V 7.3V7.3V0V7.3V14.4V3.4V or 4.1V0V7.4V 7.4V1.0V4.7V0V5.0V0V3.5V8.2V0V4.0V4.1V4.1V5.0V0V5V0V5V5.0V0Vor 0V0VIC1IC4IC6IC12A1IC7IC11IC8IC2(X25-91XX-XX)KDC-4021/V/Y/YV (1/2)KDC-3020R (1/2)KDC-3021A/G/YA/YG (1/2)KDC-306A/G/YA/YG (1/2)KDC-2092RYA/RYG (1/2)KDC-2021SA/SG (1/2)CJ2CN1Q70

45、 D70D10Q10RESETD101RDS DECODERD267D261D265D263D268D264D262D266D252D253Q251J4D404Q223 Q224EQ40D40D50D14D13D20Q20Q50Q51D51Q55SW14VD30P1D103D104J5REARPOWERJ1J3D106 D109D110D107D108Q102D201D202D102Q101SUPPLYF/EQ201D251D1POWERD403 D402 D409D407 D401 D410 D411to CD MECHANISM(BOTTOM VIEW)PRE OUTMUTEDRIVERQ

46、223,224PRE OUTMUTEPOWER ICSVR SWMUTE GATEQ201NOISEBUFFERPANEL5V SWSYSTEMu-COME2P ROMDSI SWE.VOL & N.C MPXBU DETECTACC DETECTSURGEDETECTSW5VTELMUTESERVO+B AVRK L M N O P Q R S TCAUTION : For continued safety, replace safety critical components only with manufacturers recommended parts (refer to parts

47、 list).!Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. DC voltages are as measured with a hig

48、h impedance voltmeter. Values may vary slightly due to variations between individual instrumentsor/and units.+BRR+ANT CONT/GNDRL-FR+FR-FL-FL+P. CONTGRNVIOLVIOL/BLKGRN/BLKWHTGRYGRY/BLKWHT/BLKBLU/WHTREDBLU/WHTBLK6587ACC PCONFR-6578FL+RL+ FL-21432143FR+ RR+RR-98101176125134143151621TEL MUTEBUPABYELBRNR

49、L+RL-RR-RR+ANT CONT/GNDRL-FR+FR-FL-FL+P. CONTGRNVIOLVIOL/BLKGRN/BLKWHTGRYGRY/BLKWHT/BLKBLU/WHTREDBLU/WHTBLK6587ACC PCONFR-6578FL+RL+ FL-21432143FR+ RR+RR-98101176125134143151621TEL MUTEBUPABYELBRNRL+RL-RR-KDC-3020R (M)KDC-4021 (E)KDC-4021Y (E)KDC-4021YV (E)KDC-4021V (E)427427427MODEL NAME32-7042-71UNIT42-70No.30-2132-7133u50C25633u5033u50TDA7560TDA7560TDA7560E58-0879E58-0879E58-0879KDC-306G (E)KDC-2092RYA (E)KDC-3021A (E)KDC-306A (E)KDC-3021G (E)42-7532-7442-7342-7442-72NONONO33u5033u5033u50TDA7560TDA7560TDA7560428427427E58-0879E58-0879E