Kenwood-KXFW-4030-Service-Manual电路原理图.pdf

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1、STEREO DOUBLE CASSETTE DECKCT-405KXF-W4030/W4030-S/W4030ESERVICE MANUAL2000-3/B51-5604-00 (K/K) 3037TAPE AAUTO REVERSETAPE BAUTO REVERSEPOWERPHONESTIMER PLAYREC OFF PLAYMODEREC LEVEL/BAL/BIAS- ON OFF123718PAUSEREC/ARM0237RESET AMIN/LMAX/RDOLBY NRREV.MODENORM.DUBBHIGH DUBBMPX FILTERCCRSAUTO BIASRESET

2、 B0PLAYBACKRECORDINGPLAYBACKLINE INRECPLAYLINE OUTSYSTEM CONTROLLRKnob(POWER) *(K27-)Cassette door assy *(A53-)Display window(B03-3870-08)AC power cord *(E30-)RCA jack(E63-1076-08)Phone jack(E11-0918-08)Front panel assy *(A60-)Control button *(K27-)Metallic cabinet *(A01-)*Refer to parts list on pag

3、e 18. Knob(TIMER) *(K27-)Knob(ROTARY)*(K27-)Cassette door assy *(A53-)Knob(EJECT)(K27-2431-08)Knob(EJECT)(K27-2431-08)H/P jack(E11-0925-08)AC power cord bushing*(J42-0083-05)70%CT-405/KXF-W40302CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES.2BLOCK DIAGRAM.3CIRCUIT DESCRIPTION.4ADJUSTMENT.6PARTS DESCRI

4、PTIONS.7PC BOARD.8SCHEMATIC DIAGRAM.11EXPLODED VIEW.17PARTS LIST.18SPECIFICATIONS.21ContentsAudio cord(E30-0505-05).(2)System control cord(E30-2816-05).(1)Accessories(JK01)PLAY HEAD(CN01)REC/PLAY HEADERASE (CN02)RELAY(REC/PB)PRE AMPLIFIERDECK A/B(IC1 TA7784)SYSTM CONTROL(JK02)(Q06)R/P SW(Q19,21SPEED

5、 N/H CONTROLDECK B)(Q20,22 DECK A)(Q54,55(Q56,57SOL. SWDECK B)DECK A)DECK A (CN06)(CN07)DECK B(Q51,52(Q50,53MOTOR VOLTAGE SWDECK B)DECK A)EQ AMPLIFIER(IC20 CXA1598S) (IC16 TC4051BP)EQ SWAUTO-BIAS LEVEL SW(Q34-Q36)(IC14 UPC1297CA)DOLBY HX-PRO(Q23,24)ERASE OSC (105kHz)(Q27,28)BIAS ON/OFF SW(Q25,26)ERA

6、SE ON/OFF SWCPU(IC11 LC866524A-5P85)ELEC. VOLUME CONTROL(IC3 TC9413AP)LINE AMPLIFIER(IC5 NJM4558D)(IC4 CXA1561S)DOLBY B/C NR(Q15,16)MPX SW DOLBY SW(Q17,18) (IC18 NJM4558D)LEVEL METER AMPRESET(IC19 S806D)(IC12 S-24C01)EEPROMPHOTO DETECTOR(IC6 BA10393)HEADPHONES JACK(JK300)CN08HEADPHONES AMP(IC17 NJM4

7、556AL)400/12.5K(Q33)AUTO BIAS F. SELECT(Q07A,07)SWAUTO BIAS INREC/PLAY SWCN09CN05ENCODER SWCN04KEY CONTROL FLD DISPLAYPOWER TRANSCN03(D01 GBL02)DC RECTFIRE+12V REGULATOR(IC9 NJM7812FA)(IC8 NJM7808FA)+8V REGULATOR(IC10 NJM78M05)+5V REGULATOR(IC7 NJM79M08)-8V REGULATOR(Q14)-20V REGULATORLINE IN LINE O

8、UTPLAY A/B SWTYPE I/II SWREC O/PSENS/PLAY/CrO2/REC(FWD/REV)REC MUTEAUTO BIAS F. SELECTAUTO BIAS IN400/12.5K F/OEf AC(FLD)LINE O/PLINE IN MUTE CK/STB/DATALINE O/PMUTEKXF-W4030/CT-4053CT-405/KXF-W4030BLOCK DIAGRAM4CT-405/KXF-W4030CIRCUIT DESCRIPTIONPinPin NameI/ODescriptionACTIVENo.HL1AUTO BIAS INOAut

9、o bias control port.A BIASOther2400/12.5K ,F/OO400Hz/12.5kHz freq. output.3R/P HEADOControl port for recording/playback.RecordingOther4REC MUTEOAudio muting control on R/P for B deck.OffOn5LINE/O MUTEOAudio muting control for line out.OffOn6BMECH VCCOB mecha. solenoid control.OtherStop7AMECH VCCOA m

10、echa. solenoid control.OtherStop8BSOLOBmecha. solenoid control.OnOff9ASOLOAmecha. solenoid control.OnOff10IN/MUTEOAudio muting control for input.OffOn11AC CHKIPower failure input.AC OnAC Off12RESETIReset signal input.13NC-Unused.14ENCODER IN BIEncoder input B.15VSS-Connected to ground.16,17CF 6MHz-M

11、ain clock(6.0MHz).18VDD-Power supply.19-22K1-K4IKey input(k1-k4).23TIMER P/R SWITimer Play/Rec switch input.24CCRS LEVELOCCRS level control port.25LEVEL MTR L/INILevel meter input (Lch).26LEVEL MTR R/INILevel meter input (Rch).27NC-Unused.28ENCODER IN AIEncoder input A.29-Connected to system cont. d

12、ata. 30-35FLD 1G-6GOFLD grid control port(1G-6G).36-45FLD P1-P10OFLD segment control port(S1-S10).46VDD-Power supply.47-50FLD P11-14OFLD segment control port(S11-S14).51-VPP-FLD power supply(-26V).52-61FLD P15-24OFLD segment control port(S15-S24).62A CrO2 SWIACrO2 switch input.Type 2Type163A PLAY SW

13、IAplay switch input. StopPlay64A SENS. PULSIAphoto sensor input.65A PACK SWIApack switch input.Tape NoTape Yes66B CrO2 SWIBCrO2 switch input.Type 2Type 1 67B SENS. PULSIBphoto sensor input.68B PACK SWIBpack switch input.Tape NoTape Yes69B PLAY SWIBplay switch input. StopPlay70REC FWD SWIForward reco

14、rding switch input.71REC REV SWIReverse recording switch input.72VDD-Power supply.73MPX FILTEROMPX filter ON/OFF control.74REC FILTEROMPX filter ON/OFF control.75REC EQ ORec EQ.(I/II) Control.III76SPEED N/HOBmotor speed (normal/hi) control port.NorHi77DOLBY NR B/COControl port for dolby NR(B/C).78DO

15、LBY NR ON/OFFODolby NR ON/OFF control port. 79A MOTOR SPEEDOAmotor speed (normal/hi) control port.NorHi80P.B EQOP.B EQ. Control.81MTR AMP GAIN AOGain control of level meter amplifier.82MTR AMP GAIN BOGain control of level meter amplifier.1. Pin description of microprocessorCT-405/KXF-W4030CIRCUIT DE

16、SCRIPTION5PinPin NameI/ODescriptionACTIVENo.HL83AUTO BIAS F SEL.OAuto bias frequency selection 8LPF).400Hz12.5kHz84ERASE OSC ON/OFFOErase OSC(ON/OFF) control.RecordingOther85BIAS OSC ON/OFFOBias OSC(ON/OFF) control.86-88BIAS L1-L3OBias level control output.89VSS-Connected to ground.90VDD-Power suppl

17、y.91NC-Unused.92PLAY A or BOA/B deck control port.A PlaybackOther93NC-Unused.94EE PROM SCLOEE PROM SCL.95EE PROM SDAOEE PROM SDA.96SYSTEM CONT.BUSYOSystem control byusy.97SYSTEM CONT.DATAOSystem control data.98TC9413AP DATA/OOData output to E. volume.99TC9413AP STB/OOStrobe output to E. volume. 100T

18、C9413AP SCK/OOClock output to E. volume. Pin No.Pin NameType I N.SpType I H.SpType II N.SpType II H.Sp75Rec E.Q. I/IIHHLL76Speed N/HHLHLPORTSW1SW2SW3SW4SW5SW6(PIN19)A REVA FWDA ARESET-K1PLAYPLAYREWFFA(PIN20)B REVB FWDBBREC/MODEK2PLAYPLAYREWFFREM(PIN21)A B PAUSECCRSAUTORESETK3STOPSTOPBIASB(PIN22)DOLB

19、YREVNORHIMPX-K4MODEDUBBINGDUBBINGFILTER2. Key matrix3. Description of R/P output for microprocessor.( ) Microprocessor portPin No.Pin NameDescription3Rec/P.BB Mecha. Recording Mode : HOther : L4Rec MuteB Mecha. Recording /Playback Mode : HOther : L5Line MuteA/B Playback or B Recording : HOther : L80

20、P.B EQ. 70Tape Type II : HOther : L1Rec Input SelectAuto Bias Recording : HOther : L83A. Bias F SelectAuto Bias 400Hz Recording : HOther : L85B OSC On/OffRecording/Playback : HOther : L81M. Amp Gain 1P.B/Recording/Dubb. : HOther : L82M. Amp Gain 1Auto Bias : HOther : LPin No.Pin NameRec.M.Fil OnRec.

21、M.Fil OffOther73MPX FilterLHH74REC FilterLLHPin No.Pin NameDolby CDolby BOff77Dolby B/CLHH78Dolby On/OffLLH* Filter off when dubbing mode.LINE INRECPLAYLINE OUTSYSTEMCONTROLNo.ITEMINPUTSETTINGSOUTPUT SETTINGSCASSETTE DECK SETTINGSALIGNMENT POINTALIGN FORFIG.CASSETTE DECK SECTIONTAPE: NORMAL, DOLBY:

22、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, capstan pinch rollerClean the REC/PLAY head, erase head, capstan and pinch roller using

23、 a cotton swab slightly damped with alcohol. 3 AZIMUTH(A)MTT114, TCC-153 0 kHz, -10 dB(B)PLAYAzimuth adjustment screwMaximum output.(a)II. PC BOARD 1 NOR.SPEEDA DECKB DECKHI.SPEEDNOR.SPEEDHI.SPEED(A)MTT-111, TCC-1103 kHz(B)PLAYSFR 06SFR 08SFR 05SFR 075.4 kHz5.4 kHzPLAYHI DUBBINGPlay first and short*

24、TP2 to GND.Adjust the tape speed so that a 3 kHz signal is produced at the center of the tape.Adjust the tape speed so that a 3 kHz signal is produced at the center of the tape.III. PC BOARD *TP2 (Q12, BASE)PLAYBACK LEVELMTT-150400 Hz (200 nWb)DOLBY 0 dB LEVEL(B)20 dBs0 dBs(B)PLAYASFR101 (L)SFR102 (

25、R)Output level : 0 dBs BIAS CURRENT(A)400 Hz, -20 dBs12.5 kHz, -20 dBsAdjust REC level VR so that the REC monitor output becomes -20 dBs at 400 Hz, then record and reproduce signal of 400 Hz and 12.5 kHz in alternation.SFR11 (L)SFR12 (R)Record 400 Hz and 12.5 kHzin alternation and adjust the variabl

26、e resistors which control the bias current so that the same playback level is obtained.RECORD LEVEL(A)400 Hz, 123mV(B)Record and reproduce a 400 Hz, signal under the conditions set in .SFR09 (L)SFR10 (R)Adjust for 0 dBs at line out.CT-405/KXF-W4030ADJUSTMENT6CT-405/KXF-W4030PARTS DESCRIPTIONS78ABDCE

27、2 1357 46Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)J324J319J318J317J326J327J303RESET A DOLBY REV. MODE NOR DUBBING HI DUBBING MPX CCRS AUTO BIAS RESET BA REW A FFPAUSE REC/ARMB REWMODEB FFJ302J301J300J316J315J314J313J312J311J310J309J308J30

28、7J306J305J304J323J322J320J321J325R300R305R311R317R316R308A2 A3R310R309R315R314R321R320R319R318R303R30421REV STOPFWDR302R312R3011 51549111253738FWDSTOPREVR307R313 R3061 5C307C306G2C30014C302 C303 C301 R323 R325 R324R322G114PLAYREC.TIMERS304 S317 S318 S319 S320FLT01FRONT PWBS321 S314 S315 S316S304 S30

29、3S313 S309S307S310S308CN05S300A MECHA PWBS311S301CN300CN302CN300CN04B MECHA PWBS306S312S305CN302POWER SW. PWBS323POWERS322CN08PHONESHEADPHONE PWBJK300CN09S325ENCODER PWBFHJLNGIKMO2 1357 46Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view)910J187J

30、188J189J190J179J145J149J191J215J158J216J181J152J186J197J182J178 J177 J176J203J211J224J242J127J130J123J200J143J51 J50J49J64J61J62J63J60 J48J142J44AJ88J246J129J125J126J131J202TP2TP6TP4TP5OSC OFFTP3TP11GNDDOLBYDOLBYRch 388mVLch 388mVRchTP7LchL13L14TP8GNDOSC FREQ.L04J184J196J199L09J198J244J245J162 J161

31、J160 J159J1LJ185J135J122J136J147J146J228J229J231J241J183J201J170 J169J172 J171J206J167J133ENCODERJ134J168J205J166J165J194J180J175J156 J155J154 J144J47J46J151J164J163J148J141 J140J157J173J99J213J238J225J223J237J81J82J83J137J68J84J85J86J87J119J153J80J118J114J111J110J109J117J92J94J96J76J75J78J74J73J72J

32、67J66J65J71J70J69J95J93J91J90J120J235J234J226J212J221J214J227J218J219J220J217C114C115C111C112R106C16C24R207BC134R86DR105R118R210R216R222R228R212R218R224R230C10R201R47R54R39C33R41R43R11R12R42R52AR113LchBIAS ADJ.SFR11RchBIAS ADJ.SFR12R108R115R109R110R204AC09R86HR124R180AR126R104C130R205R207AJ107C18C17

33、R13R14R07C106C102J192J195J240J23J193J208J209J210J230J239J113J24J1EJ1FJ1HJ45J1KJ43J1AJ247J79J77J102J121J112J89J14J104J105J106J232J233J97J98J128J174J150J139J138J132CF01J115 J207J243J1MC162C160C121C85C162C82C72C73AC84C86C87C80C71C60AC94C64C68C65C67C66C115AC153AC153C152AR167C153BC155C150AC141C52C44C26C4

34、5C50C51C53C27C28C140C73C69C25R23R112C22C21C133C08C20C23C07C132C132AC38C40C49AC133AC47C49C41C49BC48C39C14C18AC17AC1310222111505180 81100130316113911373812R256AR256R80R76 R85 R78 R82R75R86GR86B R86AR87 R89R86CR86 R88R86E R86FR156R250 R251R30 R29R21 R28R79R81R84AR258R91R257AR101R96C110C05R05C03R08 C136

35、C100C99R206AC135C137R206C131R208BR04R06 C06C04R19C01 R01R02C19C02C15R03R20R17 R09 R10R229 R223 R217R211 R207R209R213 R219 R225 R231R205AR51 R49R203R215R221R227R226J236J248J15J13J17J31J7J222J8J1GJ36J29J10J33J44J42J1IGO331IGO31IGO311J41 J40J2J6J32J16J10J30J39J56J1CJ1B15J55J54J38J37J5J35J34J18J27J26J19

36、J28J53J52J36AJ59J3J4J58J57J20J21J25J22J12J11J124J100J101J108R220R214R204R202 J103R53R44R208R16RY01L12L03L11L02 L01C108L07L08R94R256BR90AR257BR91ASFR08SFR06SFR05DOLBY LEVELDOLBY LEVELADJ.ADJ. RchREC LEVELADJ. RchLchSFR01SFR02SFR10REC LEVELADJ. Lch SFR09SFR07R90R100C104C101C105C107C103R103R129J116R125

37、R130R127R122R180R200R52L06C35C37 R45R55C11R40R62R165R165AR165BR102AC62C60C63C61C91R260R262R263C89C88R180BR136AR57AR135R137AR264R261R265C81R74R70AR70BR73R167AR162R132AR135AR131AR136AC1461841C144C90R138R136R140R142C143C148C145C147R133R134C142C149R139HEADPHONER69C46R57R56R61C55R59AR59R58AR36R60C54J9R37

38、R56AR58R33R35R32R34R141R137JK02R66R64C32C29C30R26C42R38R50R144R132R70FR02FR01R71FR03R131R68R143R161R163R112BR63R65R67C43R27C12R166A R166C152 C150R164BR160 R150R151R164L05R48R46C34R164AR102R204BR72R159R158R157R121AR121C93R120C95C154C152BC36R272 R273 R274SWTIMERR97C119OSC FREQ. ADJ105KHZC120C118R255R8

39、3R77R84R92R98C117R259R90BR95R128J204C113C109R276AR270R271R275R277R145R99R257R93R83ABBBEBEOIGBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEEBEBEBEBEBEEBEBBABBAEEBEBEBEBEB EB EB EB EB EBEBEBEB EBEBEBEBEBEBEBEBEBEBEBEBEBEBE4141128585 4185 418541169811810 911698 1221211 1169812212111A6C3051T015A2A5A4A1D21D03D04D07D22

40、Q57Q25IC19D09CN05Q20Q19CN07Q27Q37Q34Q35Q36Q38Q07AQ47Q46Q45Q44Q41Q14Q43IC17CN08Q12Q12AQ43AQ42Q13AJK01LINE OUTLINE INPLAYCONTROLSYSTEMMAIN PWBRECQ13Q09Q08Q42AD23Q06Q10Q30Q29Q04Q03CN02CN01Q52Q54Q28Q50Q15 Q16Q07Q26Q33Q40Q39Q18Q17Q56 Q55Q 53Q22Q51IC11CN04CN09Q23Q24Q11Q21CN06D162D24D13D12D10D01D15D11D19AD

41、19D17D109D110D107D108D05CN03D14D02AD02D22AD06D106D105D104D103D16D18AD18D20D08D160IC6IC12IC18IC7IC10IC9IC8IC5IC1IC14IC16IC4IC3IC20TRANS PWBCN03ABDFHJCEGI2 1357 4632112345612345678910SOL.SENSPLAYSWMTR (+)SPEED ASPEED B+5VGNDCrO2 SWPACK123456789101112SOL.SENSPLAYSWMTR (+)SPEED ASPEED B+5VGNDCrO2 SWPACK

42、REC. SW (FWD)REC. SW (REV)3211234566 4 2 11510312 14 16857913VCCGNDBIAS1115KR07330KR0518K R0322K R174.7u50+ C0710u50+C13330PC1527KR13330PC03C05 0.01R1427K10u50C14+1KSFR02330KR02680PC02680PC01330KR010.1C19470u16C20+SFR011KC16330P820PC18820PC174.7u50C17A+4.7u50C18A+2.2u50C25+R23 3.3K1/4WRY0115KR08330K

43、R0618K R040.01C06330PC0447KR2047u16C21+C22+1u501KR194.7K R218092100U16+0.1C24C232.2KR1227mHL0275P C102700PC123.3KR104.7u50C08+22KR163.3K R09+8V+8V75PL01 27mHC092700PC1 12.2K R1112345678VSSOUT(L)IN(L)NCA-GNDCS1GNDCK161514131211109VDD(R)OUT(R)INNCA-GNDCS2STBDATA2221201918171615141312VCTPB/IL/IMPX/IMPX

44、/OL/OTCMTCLREC/OMODEVCC1234567891011IREFPB/IR/IMPX/IMPX/OH/OTCMTCLREC/OSW .VEEL063.3K R44R428.2KR40 10KC32 100P 4.7u50C44+1KR385.6K5.6K9998TP110K R2710u50+C26AC301000P1000PC295.6K10010u50C26+10KR41100PC331K4.7u50+12354R55432513.3K0.1C350.068C37R438.2K4.7K R36 4.7K R3712345678910SOL.SENSPLAYSWMTR (+)

45、SPEED ASPEED B+5VGNDCrO2 SWPACK123456789101112SOL.SENSPLAYSWMTR(+)SPEED ASPEED B+5VGNDCrO2 SWPACKREC. SW (FWD)REC. SW (REV)5669716 5266320KSFR0522K R9310KSFR0727KR9547K R9165 5 6R9427KSFR0810K47K R9020KSFR0622K R9210KR90A1/4WR91A10K 1/4WTP24.7KR90B10KR86H79L09C1200.01R985.65.63900PC1 1818KR9618KR973

46、900PC1 19R100 1501KR1014.7KR102BAABCrO2 SWPACK SWCrO2 SWPACK SWREC SW(RVS)REC SW(FWD)SOLSOLC34 0.1C36 0.068C38 10u50+TP4TP3C49 100u16+R52 47R548.2KC39 10u50+100u16C49B+100u16+C49A10u50+C40100u16C48+ 8.2KR52A2.2u50+ C1218200PC117TP8TP54.7KR102AR100A150 1/4W470uHL03470uHL041/4WR99Q23,2465473 2 1Q25,26

47、2221201918171615141312GPGHGLGPCALGHCALRECCALINIRFEBOOSTVCCOUT1234567891011FQF/QFMFPCALD-GNDRECINGNDBOOSTVEEOUT161514131211109VDD2183ABC1234567846CON75INHVEEVSS2021220.01C134312R20639K100P C13110u50C137+12KR206B2.2u50C133+SFR09 10K1KR205R205A2.2KC133A+1u50R2042.2KR204A1KSFR10 10KR2012.2K3.3KR2023.3KR

48、2031u50C132A+33KR204BR2002.2KC27 4.7u50+C28 4.7u50+10KR26220PC42220PC43R28R29R30L05R451/4W15K+8V+8V+8V+8V+8V+8V+8V1312 14 15R86D 10KR86C 2.2K32221202112 14 15 13C135 0.01C136+10u5012KR207BR206A15KR22615KR229120K R22768KR22875KR23068KR23122KR21168KR21710KR22368KR21633KR21518KR220200K R22151KR22215KR21418KR20851KR21027KR20968KR2195