Kenwood-KXFW-3030-Service-Manual电路原理图.pdf

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1、STEREO DOUBLE CASSETTE DECKCT-401/403KXF-W1030/W1030-SKXF-W3030/W3030E/W3030-SSERVICE MANUAL2000-2/B51-5600-00 (K/K) 347370%(dB)50+3+6(dB)DPSSTAPE BAUTO REVERSETAPE AAUTO REVERSEPOWER- ON OFF1#7#718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0REV.MODEDOLBY NRDUBBING DUBBINGDOLBY NRpOPEAK LEVEL MET

2、ERLINE 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-)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)For the unit with an European

4、 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 coverContentsAccessoriesDISPLAYDOLBY NR reference level(dB)50

5、+3+6(dB)DPSSTAPE BTAPE APOWER- ON OFF1373718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0DOLBY NRDUBBING DUBBINGDOLBY NR(dB)50+3+6(dB)DUBBINGDOLBY NRPEAK LEVEL METERPEAK LEVEL METERFULL LOGIC CONTROLFULL LOGIC CONTROL2103456789!DISPLAY1Deck APlayback-only tape deck.2POWER switch:Press to turn powe

6、r -ONand OFF.3Deck A operation keys3key :Play key.1key:Rewind key. (for fast winding of tapetoward the left reel seen from you)33key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7key:Stop key.4Cassette holder (Deck A)Press the area marked “PUSH/OPEN0“to load or eject

7、a tape.5Cassette holder (Deck B)Press the area marked “PUSH/OPEN0“to load or eject a tape.6Deck B operation keys3key :Play key.1key:Rewind key (for fast winding of tapetoward the left reel seen from you)33key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7key:Stop keyR

8、EC/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.7REC LEVEL control:Adjusts the recording level.8DUBBING key:Press to

9、 start tape dubbing.9DOLBY NR key:Press to select the Dolby Noise Reductionmode.0Deck BTape deck which is capable of bothplayback and recording.!DOLBY NR indicatorDUBBING indicator1Deck APlayback-only tape deck.2POWER switch:Press to turn power -ONand OFF.3Deck A operation keys / indicators ,#keys :

10、 (Play keys) ,#indicators : (direction indicators)Tapes are played in the directionsindicated by their respective indicators.1key:Rewind key (for fast winding of tapetoward the left reel seen from you)33key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7key:Stop key4Ca

11、ssette holder (Deck A)Press the area marked “PUSH/OPEN0“to load or eject a tape.5Cassette holder (Deck B)Press the area marked “PUSH/OPEN0“to load or eject a tape.6Deck B operation keys ,#keys : (Play keys) ,#indicators : (direction indicators)Tapes are played in the directionsindicated by their res

12、pective indicators.1key:Rewind key (for fast winding of tapetoward the left reel seen from you)33key:Fast forward key (for fast winding oftape toward the right reel seen fromyou)7key:Stop keyREC/ARM key:Press in stop mode to start recordingor press in record mode to let therecording pause after leav

13、ing a non-recorded blank of 4 seconds. indicator : (Recording indicator)8PAUSE key:Press to let recording pause temporarily.7REC LEVEL control:Adjusts the recording level.8DOLBY NR key:Press to select the Dolby Noise Reductionmode.9DUBBING key:Press to select the DUBBING mode.0REV.MODE key:Press to

14、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 REVERSETAPE AAUTO REVERSEPOWER- ON OFF1#7#718PAUSEREC/ARMREC LEVELMINMAXPUSH/OPEN0PUSH/OPEN0

15、REV.MODEDOLBY NRDUBBING DUBBINGDOLBY NRpO(dB)50+3+6(dB)DUBBINGDOLBY NRpO234567890#$1!PEAK LEVEL METERPEAK LEVEL METERCT-401/KXF-W1030CT-403/KXF-W3030Pin No. Pin Name I/O DescriptionActiveHL1 AC-CHK I Power failure input. AC on AC off2,3 VSS I Connected to ground.4 SYS-DATA I System control data in.5

16、 SYS-BUSY I/O System control busy output.6 DOLBY O Dolby NR output. off on7 METER-GAIN O Meter amplifier gain control. other DPSS8 REC/PB O Dolby NR REC/PB control. PB REC9 PB-EQ/NORMAL O PB EQ. switch control. 70u 120u10 REC-EQ-TYPE 1 O Rec EQ. switch (TYPE 1) control.11 REC-EQ-TYPE 2 O Rec EQ. swi

17、tch (TYPE 2) control.12 SYS-DO O Connected with system data.13 LED-A-FWD PLAY O LED control port of A FWD PLAY.14 LED-A-REV PLAY O LED control port of A REV PLAY.15 LED-B-REV PLAY O LED control port of B REV PLAY.16-20 NC - Unused.21 SOL-A O A deck solenoid control.22 SOL-B O B deck solenoid control

18、.23 VSS - Connected to ground.24 VDD - Power supply(+5.0v).25 MECHA-VCC - Control port of power supply for deck. Play Stop26 REC O Control port of REC/PLAY. Rec Other27 REC-MUTE O Muting control port for recording. Other Rec28 A/B O Control port of A or B deck. A play Other29 DUBBING O Unused.30 BIA

19、S O Bias control port. Other Rec31 INPUT-MUT O Input muting control. off on32 LINE-MUTE O Line muting control. off on33 A-REEL I Reel puls input of A deck.34 HALF-SW I Half switch input of A deck.35 A-MODE-SW I Mode switch input of A deck. Stop Play36 B-REEL I Reel puls input of B deck.37 B-HALF-SW

20、I Half switch input of B deck.38 B-MODE-SW I Mode switch input of B deck.39 B-REC-FWD-SW I Forward rec detection switch input.40 B-REC-REV-SW I Reverse rec detection switch input.41 DO O Data output to IC601(BU2099FV).42 SI - Unused.43 CLK O Clock output to IC601(BU2099FV).44 LCK O IC601(BU2099FV) L

21、CK.45 OE O IC601(BU2099FV) OE.46 NC - Unused.47 SDA O EE PROM(IC304) SDA.48 SCL O EE PROM(IC304) SCL.49 NC - Unused.50 RESET I Reset signal input.51 VDD - Power supply(+5.0v).52 NC - Unused.53 VSS - Connected to ground.54 CF 6.0 MHz - Main system clock.55 CF- 6.0 MHz - Main system clock.56 VDD - Pow

22、er supply(+5.0v).57-59 K1-K3 I Key(1-3) input.60 MODE-SW I Mode switch input.61 NC - Unused.62 A-CRO2 I A CrO2 switch input. CrO2 Nor63 B-CRO2 I B CrO2 switch input. CrO2 Nor64 METER I Input port of level meter.1. Pin description of microprocessor. LC865612A(IC302)CT-401/403/KXF-W1030/W30303CIRCUIT

23、DESCRIPTION2. Pin description of LED driver. ( BU2099FV ,IC601) 3. Key matrixPin No. Pin Name DescriptionActiveRemarksPort SW1 SW2 SW3 SW4 SW5 SW6HL K1 A FWD * A REV A A A-6 L1 Level Meter X(Pin 57) PLAY PLAY STOP FF REW7 L2 Level Meter XK2 B FWD * B REV B B B REC/8 L3 Level Meter X(Pin 58) PLAY PLA

24、Y STOP FF REW ARM9 L4 Level Meter XK3 * REV.DUBBINGDOLBY B-10 L5 Level Meter X(Pin 59) MODE NR PAUSE11 A-REV 1 WAY/1WAY X W3030 only* KXF-W3030 only12 B 1WAY/REV X W3030 only( ) u-COM port13 C REV/REV X W3030 only14 B-FWD B-FWD X W3030 only15 REC REC LED X16 NR DOLBY NR LED off on17 DUBBING DUBBING

25、LED off on: LED lights on X : LED lights off4. Mode SWPort SW1 SW2 SW3(Pin 60) 1 WAY + 1 WAY 1 WAY + REV. REV. + REV.( ) u-COM portCN105ToFrequency counterCT-401/403/KXF-W1030/W30304ADJUSTMENT(b) AZIMUTH ADJUSTMENT(c)(a) AZIMUTH ADJUSTMENTSYSTEM CONNECTIONSNo.ITEMINPUTSETTINGSOUTPUT SETTINGSCASSETTE

26、 DECK SETTINGSALIGNMENT POINTALIGN FORFLG.CASSETTE DECK SECTIONTAPE: NORMAL, DOLBY: OFF, INPUT: LINE IN0 dBs = 0.775 VI. REC/PLAY HEAD 1 DEMAGNET-IZATIONPOWER OFFRemove the cassette door.REC/PLAY headDemagnetize the REC/PLAY head with a head demagnetizer. 2 CLEANINGPLAYREC/PLAY head, erase head, cap

27、stan 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)PLAYAzimuth adjustment screwMaximum output.(a)II. DC BOARD 1 TAPE SPEED(A)MTT-111, TCC-1103 kHz(B)PLAYSFR301Adjust the tape speed so that

28、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 BIASOSCFREQUENCYRecordingL107105 kHz 3 kHzRecord 1kHz and 10kHz inalternation and playback.Record and playback atmaximum REC volumepositio

29、n.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 current sothat the playback levelis obtained 0 dBs 3 dBs.RECORD LEVEL(A)1 kHz, -20 dBs(B)SFR107 (L)SFR108 (R)0 dBs 3 dBsalcohol.the tape.LIN

30、E INRECPLAYLINE OUTSYSTEM CONTROLLR(A)(B)AC voltmeterAGOscilloscopeAC voltmeterFrequency counterKXF-W3030KXF-W1030ACEGIBDFHJ2 1357 46111IIGGOI1151611152291110-120V220-240V11020119GOOOG I331152EBEBEBEBEBEBEB1 1522131EBBEBEBEBEBEBEBEBEBEBEBEBEBELRLRPLAYRECAC SELECTSWBEBEBEBEEBEBEBEBEBEB21515112BEBEBE1

31、333147SYSTEMCONTROLLINEOUTPOWERREC LEVELLINEINRefer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view)56ABDFHJCEGI2 1357 4687654321GNDVCC910111213141516T1/T2 SWEQ SW20KR10718KR111330K R105C113330P1KSFR10110u50+C11147u16C123+R1 1847K3213 2 154321LR543211

32、2R101101210R1024.7u50C1164.7u50+C115C1 18820PC1 1739KR1 10SFR1021KR106330K18KR11220KR1081KR1 171u50C124+C114330P10u50C112+0.01C110330P C1084.7u50+ C1204.7u50+ C119R10939K0.01C109C107330PC10139KR245C102R24639K470u16+C1031C1060.1C105C1970.1 0.1C104GND23.3K R1132.2K R12310mHL101C127270P2200PC125R1242.2

33、K3.3K R114L10210mH C128270P2200PC126C1220.1100u16C121+330 1/4WR125RY1013451081129390R1041/4W+221112R1031161514131211109123456781u50C135+R137 18KR12610u50C133+0.1C13710u50C139+100KR1391u50+C129C1361u50+C130R142 1KC14522u25+10u50C1400.1+1u50C138R140100K+100u16C134+R138 33K1u50+ C143100KR135150KR1292.7

34、KR1311u50+C1412.4KR127L103L104+R1322.7KR136C1421u502.4K R128R130100KC144150K1u50+R1334.7K4.7K R1342221201918171615141312GPGHGLGPCALGHCALRECCALINIREFBOOSTVCCOUT(L)1234567891011FQF/QFMFPCALD.GNDREC MUTEINGNDBOOSTVEEOUT(R)R23610u50C193+39K100P10u50+47u162.2u50C178+47KR23447KR198R239R199100u16C173+0.01C

35、17239R1971/4WC1792.2u50+C1771KR1963.3KR1941u50C176+2.2KR19210KSFR1083.3KR1931KR1951u50C175+10KSFR1072.2KR1912.2KR1892.2KR190100P68KR20351KR209150K R20822KR201100K R202R210R211R212R20456KR20668KR2054.7KR20739KR241150K R2404.7KR177R176 1 1/2WR244R2421u50C170+R243R1783300PC16927KR17527KR1743300PC167680

36、0PC1683.3R17322u25C165+0.015C166C180C192C19410MHL106C162 220PL10510MHC161220P2.2u50+C1642.2u50+C163100KR181100KR182R17110KR17210K34 52167C171 220KSFR106220PC160220PC159 SFR105220K22KR1 16281133 2268926L1074.7KR2381/4W47u16C191+150K R148R147150KLGR10KR3912.2u50C307+413258763.3KR3902.2u50C339+R308100K

37、1KR392100K R3821u50C338+2.7KR3401u50C306+C337 47u16+R381 10KR3875.6K5.6KR38832 311211271030R38310KR3072201/4W100u16+ C335100u16C158+R122100C132 1u50+1/4W1u50C131+B12345678910111213141516A-HALF SWA-MODE SWA-PHOTO OUTA-SOL.GNDACRO2VCC 12VMOTOR HMOTOR LB-HALF SWB-MODE SWB-PHOTO OUTB-SOL.REC SW(FWD)REC

38、SW(RVS)H L470B CRO24.7KR2474.7KR248+9.8V312476231 467+21.6V+21.6V+21.6V+12V+12V+12V+12V+12V+12V+12V+12VIC101IC102IC104IC301MAIN PCBCASSETTE DECKMECHANISM ASSYCN106CN106RchLchRchLchERASECASS-(A)PLAYCN104CN104CASS-(B)REC/PLAYCN101CN102Q102 Q101PB(Rch)(Lch) PBD101Q103D102CN105CN105CN103RECCONT.RELAYQ11

39、3FILTERFILTERQ114Q141Q135Q136RECMUTERECLEVELLRECLEVELRQ142Q137Q138CrO2NORM SWCT-401/KXF-W1030/-SonlyQ120Q123Q124Q122 Q121DOLBY(B) NRPB EQ.AMPBIAS(Lch) ADJ.ADJ.(Rch) BIASBIASCOIL OSCBIASOSCBIASCN107Q313D306D327D328D330D329D331METERDRIVERQ304Q303CONT.LINE MUTINGINPUTMUTINGCONT.D105RECAMP EQIC101:TA778

40、4PIC102CXA1551P:IC104 IC103,301CXA1598S NJM4558DX: :IC304IC305,306 IC303 IC302BR24C01AUPC7812H or:S806D LC865612A-5P27: :IC307NJM78M05A:2SC2060Q120Q303,304 Q137,138,141,142,307,309,311,313Q121,122DTC124ES:2SC2001L:Q113,114,123,124,302Q111,112,115-118Q101-103,135,1362SC945(P) or 2SC2878A:DTC114TS:DTA

41、144ES:MTZJ4.7B MTZJ5.6B W02G MTZJ10B 1SS133D323:D318 D311D101,102,301-310,315-317D105: :319-322,324,325,327-331B LINEGND LINE SIGNALLINERECORDING LINEA-HALFA-MODEA-SOLENOIDB-MODE SWB-HALF SWREC SW(RVS)REC SW(FWD)MOTORB-SOLENOIDINTERRUPTERINTERRUPTERB-PHOTOA-PHOTOQ306,308,310:2SA934RNJM78M12FA2SC945(

42、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:4.9VREC5.0V0.4V5.1V0V1.2V5.0V5.0V5.0V4.9V0.4V5.1V1.7V2.3V6.1V1.7V6.1V2.3V5.0V5.0V5.6V5.4V1.2V 1.2V5.6V5.6V5.6V11.3V0V0VTAPE CrO2:4.9V: OV1.2V1.2V4.4V1.2V1.2V1.2V5.3V11.3V12.1V:5.1VREC21.6V:0.7V:

43、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: 0V5.6V5.5V12.1V9.8V5.1V12.1VTKMOQSLNPR56847R15110KR153100KR15747K C195 100PR155 43KC149220P1KR1591u50+ C1532.2u50+C14710KR1455

44、.6K R217100u16+ C151R1615.6KR167R163 18KC155 2200P100u25C152+R1651002.2u50C148R2185.6KR14610K100KR15410KR152R15847KR164 18KC156 2200P220P C150C196 100PR156 43K3 21C154+ 1u50R1625.6KR1601KR166100+54321L INR INGND5432156KR16956KR17033KR17933KR1805.6KR1845.6KR1836463626160595857565554535251504948474645

45、4443424140393837363534331718192021222324252627282930313212345678910111213141516METERB-CRO2A-CR020MODE-SWK3K2K1VDDCF-6.0-MHZCF-6.0-MHZVSS0VDDREST0EE-PROM-SCLEE-PROM-SDA02099-DE2099-LCK2099-CLKSI2099-DOB-REC-REV-SWB-REC-FWD-SWB-MODE-SWB-HALF-SWB-RELLA-MODE SWHALF-SWA-REEL0000SOL-ASOL-BVSSVDDMECHA-VCCR

46、ECREC-MUTA/BDUBBINGBIASINPUT -MUTLINE-MUTAC-CHKVSSVSSSYS-DATASYS-BUSYDOLBY-NR-OUTMETER-GAINREC/PBPB-EQ/NORMALREC-EQ-TAPE1REC-EQ-TAPE2SYS-DOLED-A-FWDLED-A-REVLED-B-REV0151013141189 6595857626345444339 404136 383733 34 3522212827262547KR3930.022C30810KR341220KR38410KR34212347 865R344 10KR343 10KR345 1

47、0K10KR346J003 22K R3476.0MHzCF301100KC3020.022C301C303220PR306220P0.01C3040.01C305R305100K330R302330R301R303 100KR304 100K512512313212345678910111213141516B REC REVB REC FWDB CRO2B SOLB PHOTOB MODE SWB HALFMOTOR LMOTOR HMOT12VACRO2GNDASOLAPHOTOAMODE SWAHALF21301u50C309+10KR34822u25C31 1+INGNDOUTR350

48、 100K1KR34910KR3511u50+C3101KR352R353 1K1/4WR35522KC312 0.02222KR35412345K1GNDB+5VA-FWDA-REV123456789B-REVK3K2B+5VGNDOEDOCLKLCK57131459155843454144121320.022C317470u16C315+0.022C314470u161000u6.3C3180.022+C319C321 0.0222130.022C322C323+120.022C325332132110 1/2WR37810u50C324+1000u16C326+C320 470u16+56KR385C31633u50+R386100K0.022C3280.022C3