Kenwood-KXFW3030-tape-sm 维修电路原理图.pdf

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1、STEREO DOUBLE CASSETTE DECKCT-401/403KXF-W1030/W1030-SKXF-W3030/W3030E/W3030-SSERVICE MANUAL 2000-2/B51-5600-00 (K/K) 347370%(dB) 50+3+6(dB)DPSSTAPE BAUTO REVERSETAPE AAUTO REVERSEPOWER- ON OFF1#7#718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0REV.MODE DOLBY NRDUBBINGDUBBINGDOLBY NRpOPEAK LEVEL M

2、ETERLINE INRECPLAYLINE OUTSYSTEM CONTROLLRPower button *(K27-)Cassette window (L)(B03-3862-08)Volume knob *(K27-)LED window(B03-3865-08)Cassette window (R)(B03-3863-08)Player button (L) *(K27-)Cassette door (L) *(A53-)Front panel *(A60-)Cassette door (R) *(A53-)Player button (R) *(K27-)AC power cord

3、 *(E30-)RCA jack(E11-0917-08)Phone jack(E11-0918-08)* Illustration is CT-403/KXF-W3030.* Refer to parts list on page 13. Metallic cabinet *(A01-)RadioFans.CN 收音机爱 好者资料库Audio (E30-0505-05)cord. (2)AC (E03-0115-05)plug adaptor. (1)System (E30-2816-05)control cord . (1)(Except for Europe and Australia)

4、For the unit with an European AC plug in areas other than Europe. CT-401/403/KXF-W1030/W30302CONTENTS / ACCESSORIESCONTROLSCONTENTS / ACCESSORIES . 2CONTROLS .2CIRCUIT DESCRIPTION.3ADJUSTMENT.4PC BOARD . 5SCHEMATIC DIAGRAM . 7EXPLODED VIEW .12PARTS LIST.13SPECIFICATIONS .Back coverContentsAccessorie

5、sDISPLAYDOLBY NR reference level(dB) 50+3+6(dB)DPSSTAPE BTAPE APOWER- ON OFF1373718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0DOLBY NRDUBBINGDUBBINGDOLBY NR(dB) 50+3+6(dB)DUBBINGDOLBY NRPEAK LEVEL METERPEAK LEVEL METERFULL LOGIC CONTROLFULL LOGIC CONTROL2103456789!DISPLAY1 Deck APlayback-only ta

6、pe deck.2 POWER switch:Press to turn power - ON and OFF.3 Deck A operation keys3 key :Play key.1 key:Rewind key. (for fast winding of tapetoward the left reel seen from you)33 key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7 key:Stop key.4 Cassette holder (Deck A)Pr

7、ess the area marked PUSH/OPEN0 to load or eject a tape.5 Cassette holder (Deck B)Press the area marked PUSH/OPEN0 to load or eject a tape.6 Deck B operation keys3 key :Play key.1 key:Rewind key (for fast winding of tapetoward the left reel seen from you)33 key:Fast forward key (for fast winding ofta

8、pe toward the right reel seen fromyou)7 key:Stop key REC/ARM key:Press in stop mode to start recordingor press in record mode to let therecording pause after leaving a non-recorded blank of 4 seconds. indicator : (Recording indicator)8PAUSE key:Press to let recording pause temporarily.7 REC LEVEL co

9、ntrol:Adjusts the recording level.8 DUBBING key:Press to start tape dubbing.9 DOLBY NR key:Press to select the Dolby Noise Reductionmode.0 Deck BTape deck which is capable of bothplayback and recording.! DOLBY NR indicator DUBBING indicator1 Deck APlayback-only tape deck.2 POWER switch:Press to turn

10、 power - ON and OFF.3 Deck A operation keys / indicators , # keys : (Play keys) , # indicators : (direction indicators)Tapes are played in the directionsindicated by their respective indicators.1 key:Rewind key (for fast winding of tapetoward the left reel seen from you)33 key:Fast forward key (for

11、fast winding oftape toward the right reel seen fromyou)7 key:Stop key4 Cassette holder (Deck A)Press the area marked PUSH/OPEN0 to load or eject a tape.5 Cassette holder (Deck B)Press the area marked PUSH/OPEN0 to load or eject a tape.6 Deck B operation keys , # keys : (Play keys) , # indicators : (

12、direction indicators)Tapes are played in the directionsindicated by their respective indicators.1 key:Rewind key (for fast winding of tapetoward the left reel seen from you)33 key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7 key:Stop key REC/ARM key:Press in stop mo

13、de to start recordingor press in record mode to let therecording pause after leaving a non-recorded blank of 4 seconds. indicator : (Recording indicator)8PAUSE key:Press to let recording pause temporarily.7 REC LEVEL control:Adjusts the recording level.8 DOLBY NR key:Press to select the Dolby Noise

14、Reductionmode.9 DUBBING key:Press to select the DUBBING mode.0 REV.MODE key:Press to select the REVERS mode.! Deck BThis deck is capable of both playback andrecording. Reverse mode indicators# DOLBY NR indicator$ DUBBING indicatorDISPLAYDOLBY NR reference levelDISPLAY(dB) 50+3+6(dB)DPSSTAPE BAUTO RE

15、VERSETAPE AAUTO REVERSEPOWER- ON OFF1#7#718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0REV.MODE DOLBY NRDUBBINGDUBBINGDOLBY NRpO(dB) 50+3+6(dB)DUBBINGDOLBY NRpO234567890#$1!PEAK LEVEL METERPEAK LEVEL METERCT-401/KXF-W1030CT-403/KXF-W3030RadioFans.CN 收音机爱 好者资料库Pin No.Pin NameI/ODescriptionActiveHL

16、1AC-CHKIPower failure input.AC onAC off2,3VSSIConnected to ground.4SYS-DATAISystem control data in.5SYS-BUSYI/OSystem control busy output.6DOLBYODolby NR output.offon7METER-GAINOMeter amplifier gain control.otherDPSS8REC/PBODolby NR REC/PB control.PBREC9PB-EQ/NORMALOPB EQ. switch control. 70u120u10R

17、EC-EQ-TYPE 1ORec EQ. switch (TYPE 1) control.11REC-EQ-TYPE 2ORec EQ. switch (TYPE 2) control.12SYS-DOOConnected with system data.13LED-A-FWD PLAYOLED control port of A FWD PLAY.14LED-A-REV PLAYOLED control port of A REV PLAY.15LED-B-REV PLAYOLED control port of B REV PLAY.16-20NC-Unused.21SOL-AOA de

18、ck solenoid control.22SOL-BOB deck solenoid control.23VSS-Connected to ground.24VDD-Power supply(+5.0v).25MECHA-VCC-Control port of power supply for deck.PlayStop26RECOControl port of REC/PLAY.RecOther27REC-MUTEOMuting control port for recording.OtherRec28A/BOControl port of A or B deck.A playOther2

19、9DUBBINGOUnused.30BIASOBias control port.OtherRec31INPUT-MUTOInput muting control.offon32LINE-MUTEOLine muting control.offon33A-REELIReel puls input of A deck.34HALF-SWIHalf switch input of A deck.35A-MODE-SWIMode switch input of A deck.StopPlay36B-REELIReel puls input of B deck.37B-HALF-SWIHalf swi

20、tch input of B deck.38B-MODE-SWIMode switch input of B deck.39B-REC-FWD-SWIForward rec detection switch input.40B-REC-REV-SWIReverse rec detection switch input.41DOOData output to IC601(BU2099FV).42SI-Unused.43CLKOClock output to IC601(BU2099FV).44LCKOIC601(BU2099FV) LCK.45OEOIC601(BU2099FV) OE.46NC

21、-Unused.47SDAOEE PROM(IC304) SDA.48SCLOEE PROM(IC304) SCL.49NC-Unused.50RESETIReset signal input.51VDD-Power supply(+5.0v).52NC-Unused.53VSS-Connected to ground.54CF 6.0 MHz-Main system clock.55CF- 6.0 MHz-Main system clock.56VDD-Power supply(+5.0v).57-59K1-K3IKey(1-3) input.60MODE-SWIMode switch in

22、put.61NC-Unused.62A-CRO2IA CrO2 switch input.CrO2Nor63B-CRO2IB CrO2 switch input.CrO2Nor64METER IInput port of level meter.1. Pin description of microprocessor. LC865612A(IC302)CT-401/403/KXF-W1030/W30303CIRCUIT DESCRIPTION2. Pin description of LED driver. ( BU2099FV ,IC601)3. Key matrixPin No.Pin N

23、ameDescriptionActiveRemarksPortSW1SW2SW3SW4SW5SW6HLK1A FWD* A REVA AA-6L1Level MeterX(Pin 57)PLAYPLAYSTOPFFREW7L2Level MeterXK2B FWD* B REVBBBREC/8L3Level MeterX(Pin 58)PLAYPLAYSTOPFFREWARM9L4Level MeterXK3* REV.DUBBINGDOLBYB-10L5Level MeterX(Pin 59)MODENRPAUSE11A-REV1 WAY/1WAYXW3030 only* KXF-W3030

24、 only12B1WAY/REVXW3030 only( ) u-COM port13CREV/REVXW3030 only14B-FWDB-FWDXW3030 only15RECREC LED X16NRDOLBY NR LED offon17DUBBINGDUBBING LEDoffon : LED lights on X : LED lights off4. Mode SWPortSW1SW2SW3(Pin 60)1 WAY + 1 WAY1 WAY + REV.REV. + REV.( ) u-COM portCN105To Frequency counterCT-401/403/KX

25、F-W1030/W30304ADJUSTMENT(b) AZIMUTH ADJUSTMENT(c)(a) AZIMUTH ADJUSTMENTSYSTEM CONNECTIONSNo.ITEMINPUTSETTINGSOUTPUT SETTINGSCASSETTE DECK SETTINGSALIGNMENT POINTALIGN FORFLG. CASSETTE DECK SECTIONTAPE: NORMAL, DOLBY: OFF, INPUT: LINE IN0 dBs = 0.775 V I. REC/PLAY HEAD 1 DEMAGNET-IZATIONPOWER OFFRemo

26、ve the cassette door.REC/PLAY headDemagnetize the REC/PLAY head with a head demagnetizer. 2 CLEANINGPLAYREC/PLAY head, erase head, capstan pinch rollerClean the REC/PLAY head, erase head, capstan andpinch roller using a cottonswab slightly damped with 3 AZIMUTH(A)MTT114, TCC-153 0 kHz, -10 dB(B)PLAY

27、Azimuth adjustment screwMaximum output.(a) II. DC BOARD 1 TAPE SPEED(A)MTT-111, TCC-1103 kHz(B)PLAYSFR301Adjust the tape speed so that a 3 kHz signal is produced at the center of(b)(c) III. PC BOARDPLAYBACK LEVELMTT-150400 Hz (200 nWb)(B)PLAYDECK BSFR101 (L)SFR102 (R)Output level : 1 dBs BIAS REC BI

28、ASOSCFREQUENCYRecordingL107105 kHz 3 kHzRecord 1kHz and 10kHz inalternation and playback.Record and playback atmaximum REC volumeposition.CURRENT(A)1 kHz, -20 dBs10 kHz, -20 dBs(B)SFR105 (L)SFR106 (R)Record 1 kHz and 10 kHz in alternation and adjust the variable resistors which control the bias curr

29、ent sothat the playback level is obtained 0 dBs 3 dBs.RECORD LEVEL(A)1 kHz, -20 dBs(B)SFR107 (L)SFR108 (R)0 dBs 3 dBsalcohol.the tape.LINE INRECPLAYLINE OUTSYSTEM CONTROLLR(A)(B)AC voltmeterAGOscilloscopeAC voltmeterFrequency counterKXF-W3030KXF-W1030ACEGIBDFHJ2135746111IIGGOI1151611152291110-120V22

30、0-240V11020119G OOO G I331152EBEBEBEBEBEBEB11522131EBBEBEBEBEBEBEBEBEBEBEBEBEBELRLRPLAYRECAC SELECT SWBEBEBEBEEBEBEBEBEBEB21515112BEBEBE1333147SYSTEMCONTROLLINEOUTPOWERREC LEVELLINEINRefer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)56ABDFHJCEGI213

31、574687654321GNDVCC910111213141516T1/T2 SWEQ SW20KR10718KR111330KR105C113330P1KSFR10110u50+C11147u16C123+R11847K32132154321LR5432112R101101210R1024.7u50C1164.7u50+C115C118820PC11739KR110SFR1021KR106330K18KR11220KR1081KR1171u50C124+C114330P10u50C112+0.01C110330PC1084.7u50+C1204.7u50+C119R10939K0.01C10

32、9C107330PC10139KR245C102R24639K470u16+C1031C1060.1C105C1970.10.1C104GND23.3KR1132.2KR12310mHL101C127270P2200PC125R1242.2K3.3KR114L10210mHC128270P2200PC126C1220.1100u16C121+330 1/4WR125RY1013451081129390R1041/4W+221112R1031161514131211109123456781u50C135+R137 18KR12610u50C133+0.1C13710u50C139+100KR13

33、91u50+C129C1361u50+C130R142 1KC14522u25+10u50C1400.1+1u50C138R140100K+100u16C134+R138 33K1u50+C143100KR135150KR1292.7KR1311u50+C1412.4KR127L103L104+R1322.7KR136C1421u502.4KR128R130100KC144150K1u50+R1334.7K4.7KR1342221201918171615141312GPGHGLGPCALGHCALRECCALINIREFBOOSTVCCOUT(L)1234567891011FQF/QFMFPC

34、ALD.GNDREC MUTEINGNDBOOSTVEEOUT(R)R23610u50C193+39K100P10u50+47u162.2u50C178+47KR23447KR198R239R199100u16C173+0.01C17239R1971/4WC1792.2u50+C1771KR1963.3KR1941u50C176+2.2KR19210KSFR1083.3KR1931KR1951u50C175+10KSFR1072.2KR1912.2KR1892.2KR190100P68KR20351KR209150KR20822KR201100KR202R210R211R212R20456KR

35、20668KR2054.7KR20739KR241150KR2404.7KR177R1761 1/2WR244R2421u50C170+R243R1783300PC16927KR17527KR1743300PC1676800PC1683.3R17322u25C165+0.015C166C180C192C19410MHL106C162 220PL10510MHC161220P2.2u50+C1642.2u50+C163100KR181100KR182R17110KR17210K3452167C171220KSFR106220PC160220PC159SFR105220K22KR116281133

36、2268926L1074.7KR2381/4W47u16C191+150KR148R147150KLGR10KR3912.2u50C307+413258763.3KR3902.2u50C339+R308100K1KR392100KR3821u50C338+2.7KR3401u50C306+C337 47u16+R381 10KR3875.6K5.6KR38832311211271030R38310KR3072201/4W100u16+C335100u16C158+R122100C132 1u50+1/4W1u50C131+B12345678910111213141516A-HALF SWA-M

37、ODE SWA-PHOTO OUTA-SOL.GNDA CRO2VCC 12VMOTOR HMOTOR LB-HALF SWB-MODE SWB-PHOTO OUTB-SOL.REC SW(FWD)REC SW(RVS)HL470B CRO24.7KR2474.7KR248+9.8V312476231467+21.6V+21.6V+21.6V+12V+12V+12V+12V+12V+12V+12V+12VIC101IC102IC104IC301MAIN PCBCASSETTE DECKMECHANISM ASSYCN106CN106RchLchRchLchERASECASS-(A)PLAYCN

38、104CN104CASS-(B)REC/PLAYCN101CN102Q102Q101PB(Rch)(Lch)PBD101Q103D102CN105CN105CN103RECCONT.RELAYQ113FILTERFILTERQ114Q141Q135Q136RECMUTERECLEVEL LRECLEVEL RQ142Q137Q138CrO2NORM SWCT-401/KXF-W1030/-SonlyQ120Q123Q124Q122Q121DOLBY(B) NRPB EQ.AMPBIAS(Lch)ADJ.ADJ.(Rch)BIASBIASCOILOSCBIASOSCBIASCN107Q313D3

39、06D327D328D330D329D331METERDRIVERQ304Q303CONT.LINE MUTINGINPUT MUTINGCONT.D105RECAMPEQIC101: TA7784PIC102CXA1551P:IC104IC103,301CXA1598SNJM4558DX:IC304IC305,306IC303IC302BR24C01AUPC7812H or:S806DLC865612A-5P27:IC307NJM78M05A:2SC2060Q120Q303,304Q137,138,141,142,307,309,311,313Q121,122DTC124ES:2SC2001

40、L:Q113,114,123,124,302Q111,112,115-118Q101-103,135,1362SC945(P) or2SC2878A:DTC114TS:DTA144ES:MTZJ4.7BMTZJ5.6BW02GMTZJ10B1SS133D323:D318D311D101,102,301-310,315-317D105: 319-322,324,325,327-331B LINEGND LINESIGNAL LINERECORDING LINEA-HALFA-MODEA-SOLENOIDB-MODE SWB-HALF SWREC SW(RVS)REC SW(FWD)MOTORB-

41、SOLENOIDINTERRUPTERINTERRUPTERB-PHOTOA-PHOTOQ306,308,310: 2SA934RNJM78M12FA2SC945(Q)10.2V2.3V2.2V2.2V2.2V2.2VB PLAYA PLAY : 2.4V: 0V2.2V2.2V2.2V2.2V2.2V2.3VPLAYREC: 0V: 4.3VPLAYREC: 21.6V: 0V: 4.9VREC5.0V0.4V5.1V0V1.2V5.0V5.0V5.0V4.9V0.4V5.1V1.7V2.3V6.1V1.7V6.1V2.3V5.0V5.0V5.6V5.4V1.2V1.2V5.6V5.6V5.

42、6V11.3V0V0VTAPE CrO2: 4.9V: OV1.2V1.2V4.4V1.2V1.2V1.2V5.3V11.3V12.1V: 5.1VREC21.6V: 0.7V: 5.7VRECPLAY/STOPREC : 0V: 0V: 5.7VTAPE HITAPE NORTAPE NORTAPE HI: 0V: 4.4VPLAYREC: 5.0V11.4V5.7V5.7VPLAYRECSTOPREC/PLAY: 3.8V: 3.7V: 0VPLAYREC : 0V: 4.9VREC: 3.8V: 4.3VREC/PLAYSTOP: 4.9V: 0V5.6V5.5V12.1V9.8V5.1

43、V12.1VTKMOQSLNPR56847R15110KR153100KR15747KC195 100PR155 43KC149220P1KR1591u50+C1532.2u50+C14710KR1455.6KR217100u16+C151R1615.6KR167R163 18KC155 2200P100u25C152+R1651002.2u50C148R2185.6KR14610K100KR15410KR152R15847KR164 18KC156 2200P220PC150C196 100PR156 43K321C154+1u50R1625.6KR1601KR166100+54321L I

44、NR INGND5432156KR16956KR17033KR17933KR1805.6KR1845.6KR18364636261605958575655545352515049484746454443424140393837363534331718192021222324252627282930313212345678910111213141516METERB-CRO2A-CR020MODE-SWK3K2K1VDDCF-6.0-MHZCF-6.0-MHZVSS0VDDREST0EE-PROM-SCLEE-PROM-SDA02099-DE2099-LCK2099-CLKSI2099-DOB-R

45、EC-REV-SWB-REC-FWD-SWB-MODE-SWB-HALF-SWB-RELLA-MODE SWHALF-SWA-REEL0000SOL-ASOL-BVSSVDDMECHA-VCCRECREC-MUTA/BDUBBINGBIASINPUT-MUTLINE-MUTAC-CHKVSSVSSSYS-DATASYS-BUSYDOLBY-NR-OUTMETER-GAINREC/PBPB-EQ/NORMALREC-EQ-TAPE1REC-EQ-TAPE2SYS-DOLED-A-FWDLED-A-REVLED-B-REV01510131411896595857626345444339404136

46、383733343522212827262547KR3930.022C30810KR341220KR38410KR34212347865R344 10KR343 10KR345 10K10KR346J00322KR3476.0MHzCF301100KC3020.022C301C303220PR306220P0.01C3040.01C305R305100K330R302330R301R303 100KR304 100K512512313212345678910111213141516B REC REVB REC FWDB CRO2B SOLB PHOTOB MODE SWB HALFMOTOR

47、LMOTOR HMOT 12VA CRO2GNDA SOLA PHOTOA MODE SWA HALF21301u50C309+10KR34822u25C311+INGNDOUTR350 100K1KR34910KR3511u50+C3101KR352R353 1K1/4WR35522KC312 0.02222KR35412345K1GNDB+5VA-FWDA-REV123456789B-REVK3K2B+5VGNDOEDOCLKLCK57131459155843454144121320.022C317470u16C315+0.022C314470u161000u6.3C3180.022+C3

48、19C321 0.0222130.022C322C323+120.022C325332132110 1/2WR37810u50C324+1000u16C326+C320 470u16+56KR385C31633u50+R386100K0.022C3280.022C3320.022C3270.022C3310.56 1/2WFR010.56 1/2WFR0233212112653TRANS PT301A4J001J002H1A14700PC400ABAC CORDAC 120V/230V/240VR36310KR37210KSFR301 2KR379 4.3K4.7KR374R3754.7KR3

49、71 4.7KR370 4.7KR367 4.7KR366 4.7KR365 4.7KR368 22KR389 4.7KR369 22K40393663336237382122253534TRANS123J00276J0014AC COADPT301B13115V230V50K(A)VR101VR10150K(A)LEDLEDLED20191817VCCOESODUBBING12345GNDNCDICLKLCK270R612100R633100PC6030.022C60110u50C602+RED100R636100R634100R635C605100PC606100PC604100PLEDB

50、-REV1GNDK3K2B+5V532412KR628R6275.6KR6263.3KR6252.2KR6241.5KR6313.3KR6302.2K1.5KR6295.6KR6233.3KR6222.2KR6211.5KR6202323270R615GRN5K1GNDLEDLEDA-FWDB+5V1243A-REVGRNR614270GRN270R613212.2KR362R36110K220u16C333+2.2KR3642.2KR3737698L-REC-LEVELR-REC-LEVEL+21.6V+21.6V+21.6V+21.6V+21.6V+21.6VDATABUSYBUSYDAT