Kenwood-XS300-tape-sm 维修电路原理图.pdf

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1、STEREO CASSETTE DECKX-S300SERVICE MANUAL 1997-6/B51- 5325-00 (K/K) 2147STEREO CASSETTE DECK X-S300 POWERO.T.E.10823CCRSCOUNTERRESETREV.MODEREC LEVELDOLBY- ON OFF7RLRECINPLAYOUTSYSTEM CONTROLAC 110 - 120V AC 220 - 240V LINEKnob(K27-2211-04)Knob assy(K29-6676-04)Escutcheon(B07-2344-02)Knob assy(K29-66

2、78-04)Panel(A60-1148-11)Power cord bushing(J42-0083-05)Knob(K29-6680-02)Panel assy(A29-0869-03)Front glass(B10-2356-12)Knob(K29-6680-02)Phono jack(E63-0136-05)Miniature phone jack(E11-0293-05)Slide switch(S62-0001-05)AC power cord *(E30-)* Refer to parts list on page 13.X-S300(k) COVER( 98.4.24 9:15

3、 AM yW 2RadioFans.CN 收音机爱 好者资料库X-S3002CONTENTS / ACCESSORIESAccessoriesCONTENTS / ACCESSORIES .2ADJUSTMENT.3PARTS DESCRIPTIONS .4PC BOARD .5SCHEMATIC DIAGRAM .7EXPLODED VIEW .11PATS LIST .13SPECIFICATIONS .17ContentsAudio cord .(2)(E30-0505-05)System control cord.(1)(E30-2816-05)* AC plug adapter .(

4、1)(E03-0115-05)Check that the following accessories are present.* Use to adapt the plug on thepower cord to the shape of thewall outlet (Accessory only forregions where use is necessary.)X-S300(k) COVER( 98.4.24 9:15 AM yW 3RadioFans.CN 收音机爱 好者资料库RLRECINPLAYOUTSYSTEM CONTROLAC 110 - 120V AC 220 - 24

5、0V LINEOscilloscopeAC voltmeterFrequency counterAC voltmeterAG(A)(B)X-S3003ADJUSTMENTNO.ITEMINPUT SETTINGOUTPUTSETTINGCASSETTE TAPEDECK SETTINGALIGNMENTPOINTSALIGN FORFIG.Unless otherwise specified, set the respective switches as follows: 0dBs = 0.775V TAPE : NORMAL DOLBY : OFF I Cassette mechanism

6、unit (Adjustment of the REC / PLAY head)(1)Demagnetizationand cleaningPower : OFFDemagnetization,cleaning, PLAYRecordinghead, erasehead, capstanpinch rollerDemagnetize the REC / PLAY headwith the head eraser. Clean the REC /PLAY head, erase head, capstan andpinch roller using a cotton swab slightlyd

7、amped with alcohol.(2)Azimuth of theREC / PLAYheadSCC-1727TCC-153MTT-11410kHz, -10dB(B)PLAYAdjust the output to maximum andadjust the azimuth adjustment screwfor the Lissajours waveform pattern ofthe oscilloscope to become close to a45 straight ling.II PC BOARD ADJUSTMENT(1)TAPE SPEED(NORMAL)TCC-110

8、MTT-111 SCC-17273kHZ(B)PLAYVR7Adjust the tape speed so that 3kHz isobtained at the center of the tape.III PC board adjustment.(1)PLAYBACKLEVELMTT-150400Hz(B)PLAYVR 1 (L)VR 2 (R)Adjust the playback output to 1dBs.MTT-256, SCC-1727315HzAdjust the playback output to 4dBs.MTT-256U, TCC-120315 HzAdjust t

9、he playback output to 0 dBs.(2)BIAS CURRENT(A)Adjust the AG for theoutput of the DECK tobecome 12.5KHz 20dBs.400Hz/12.5kHz (AC-224)(B)REC PLAYVR 3 (L)VR 4 (R)Record 400Hz and 12.5kHz alternately,and adjust the bias current adjustmentpotentiometer for the playback levels tobecome the same.(3)RECORDIN

10、GLEVEL(A)Adjust the AG for theoutput of the DECK tobecome 1kHz 20dBs.(B)REC PLAYVR 5 (L)VR 6 (R)20 dBsMeasurement Equipment ConnectionsRVSFWDX-S300(k) COVER( 98.4.24 9:15 AM yW 7X-S3004PARTS DESCRIPTIONSX-S300(k) COVER( 98.4.24 9:16 AM yW 8ACEGIBDFHJ2135746Refer to the schematic diagram for the valu

11、e of resistors and capacitors.PC BOARD(Component side view)56X28-2892-70: TEX28-2940-20: MIX28-2940-71: XCX-S300(K) PCB/SD( 98.4.24 9:23 AM y W 2ABDFHJCEGI21357461817161514131210PROTECTION CIRCUITTHARMAL DETECTINGPOWER SOURCESTABILIZING+15VDET.ABSO.DET.PEAKDET.ABSO.123DET.PEAK4VCA11DRIVERPRE7VCACOMP

12、ARATOR56GND89()()()()()()()()()()()()()()()()()()()()()()()(1.0V2.0V1.0V2.0V0.4V11.8V0.4vMECHANISM ASSY(D40-1563-05)K110 1/4WR147R14922KR14822KC1465600PC1455600PC1440.0110 1/4WR146100u16C143+123456C1470.01L712345RchGNDLchGNDEHC2 560PR1 150KC1 560PC5390P10u16C14+C163900P3900PC156.2KR5150KR662R462R3R2

13、 150K1.5KR124.7u35C12+C6390P100u10C3+100u10C4+R101.8KC100.033100u16C139+C140 0.01C80.0220.022C7150KC114.7u35+1.5KR11R9 1.8KC90.0336.2KR8R150C1310u16+1234+-8756-+0.022C53C5454213C550.01C560.0133KR27220PC4915KR2915KR30L3360KR25680PC47C45150P10PC1414.7u35C136+33KR2854L4132C50220P360KR26680PC48150PC4610

14、u16C142+0.01C51C520.01VR347K(B)47K(B)VR4R14410K4786532113109111214151651KR161100u10 C63+2.2u50C61+R15582K120KR15468KR15991KR160110KR156R158220K82KR15756K100KR153R152R15147KR16224K47K(B)VR6+1u50C60+2.4KR36R383.9K3.9KR37R351u50C59+2.4KC1491u50+C150 1u50+C44L610mH10u16R24R23+220P220PC43L510mH5.6KR34C62

15、2.2u50+100u10C64VR547K(B)R2234.7 1/4W10u16C148+5.6KR33C4110KR3210KR31GPGLGHIrefVCCINOUTF/QFQFMGNDGNDOUTIN15KR15K10u16C42+NORCrO21314151011124798653211716181921202724222325262829301.5K18K3.9K0.1u50+O.1u50+1u50+C31 2200P+0.1u500.1u50C32 2200P4.7u35C20+10KR4016VDDVSS131415101112CS2CS1STBGNDDATA9CLK1324

16、576812KR48+4.7u35R19 560R1322KC27C294.7u35C39+10KR3912K+10KR14010KR1391000PC22R181.5KC2668002200PC282200PC30R20 56022KC34C33C35C37C364.7U35C38+R142R17R212000PC17R1414.7u35C23+5.6KR154.7u35C19+R186 47KR187 47KR188 47K1u50C68+10KR4912KR47100KR45100KR461u50C67+R2244.7 1/4W6800PC25R22 3.9K4.7u35C40+4.7R

17、143VR110K(B)C211000P10u16C155+10K(B)VR25.6KR1676581432-+-321463 2416100u16C151+0.01C1522200P1u50C18+4.7u35C24+4.7u35C154+22u16C153REC INPB IN1/2VccLINEOUTRECOUTL1L2R14R4127KR4327KR4427K1u50C65+R733.9KR713.9KR743.9KR171 100KR168330R169100KR170330R723.9K47R OUTVCC9DET8GNDR IN6L IN5DET3NCL OUT21123451G

18、ND74VZ1OUT2VR3CLOSEOPEN5VCC16VCC28OUTVZ291010R16733KR17810R221R1823.6K1KR183R1841010u16C159+R177 10KR176 10K1112R1664.7K670.47u50C162434244R555.6KR5339K10KR512.2KR52R5739KR545.6KR5610KR584.7u35C71+1u50C69+2.2K4.7u35C72+1u50C70+2200PC582200PC57R1635.6K470R667574100R68R6710022KR69R6547022KR70R172100K1

19、00KR173C163220PC164220P0.01C16510 1/4WR18545MOTOR -MOTOR +CLOSEGNDOPEN34353637470R63R644704.7R225C1370.01180R145VR6SBUSYSDATA+10u16C156Q36-43R1654.7 1/4W10u16C160+C1610.1u50+14V+14V+9V+9VVDDVDDVDDVDDR2224.71/4W+14VVDD10KR50VDD+14V+14VVDD3881095270KR1741627284700PC1571KR1751/4W1/4W39R190100R189401004

20、15.6KR16417P1+B+B+14V+B+14V+14V+14V+14V+14V+5V+14V+12V+14V+12V+B+14V+14V+5V+12V+5V+B+B+14V+14V+12V+12V+12VVCCVCCVCCVCCVCCVCC+B+14VVCC+14V+B+B+B+B+BVDD+14V+14VVDDVDD+5V+5V+12VRch(-)BLKLch(-)BLKWHTLch(+)E(+)YELRch(+)RED1.5K(B)(A)(+)(-)54231(-)(+)54231COMMONCLOSEOPENOPENCOMCLOSEMOTOR+MOTOR-123456789101

21、514131211NCNCPACKRVS RECSDL-PHOTO OUTMOTOR AMOTOR B+12VCOM GNDMOTOR-CrO2PHOTO CATHODEPLAYFWD RECEHE6E71K0.0221/4W1/4W11.8VREC: 5.2VPLAY: 0V1.4V9.2V0V12.9V0.9V1.4V13.5V0V4.9V4.9V0.9VR7REC: 7.1V13.4VREC: 5.2VPLAY: 0V1.6V13.4V13.4V0.6V2.4V1.1V4.4V0.6V4.4V0.6V2.0V13.4V0VPLAY: 13.5VREC: 0V0.6V13.4V1.2V6.

22、8V6.7V13.5V6.7V6.8V6.8V6.8V6.8V6.8V1.9V1.9V1.8V0.3V6.8VDOLBYOFF: 0VB: 6.7VC: 12.5V1.3V6.8V1.2V13.4VPLAY: 4.0JREC: 0VREC: 4.5V PLAY: 4.1VREC/PLAY: 0VSTOP: 3.9VDOLB:5.3VC:0VOFF:5.3VON:0VDOL5.3VREC:0VPLAY:NOR: 5.2VCrO2: 0VREC: 5.3V PLAY: 0VREC: 0VPLAY: 10.4VREC: 7.9VPLAY: 0V13.5V7.2V5.2VCLOSE: 8.1VCLOS

23、E: 6.4V11.8VREC: 6.3VPLAY: 0VOPEN: 6.6VOPEN: 8.1V6.6V4.3V0V5.2V6.8VNOR: 0VCrO2: 1.3V: 1.3V: 0VCrO2NORNOR: 5.2VCrO2: 0VNOR:0VCrO2: 5.2VREC: 4.5V PLAY: 4.1VREC: 7.3V8.2KR1806.2KR18115KR179R4227K1u50C66120u: 0V70u: 5.2VREC/PLAY: 5.0VSTOP:0VC: 11.4VB: 6.6VDOLBY OFF: 1.0VGRNYELORGBRNRED6.8V6.7V6.7V6.7V6.

24、7V6.7V6.7V6.7V6.7V6.7V6.7V6.7V6.7V6.7V6.7V7.3V7.3V: 5.0VPLAY:REC: 0V13.5VBLKE(-)DIGITAL LINEGND LINESIGNAL LINE+B-BBIAS OSCQ25Q26D45CN6L-CHR-CHMUTESW70u/120uD44AMPPBQ15Q13Q14L-CHHX-PROBIAS-RR-CHBIAS-LIC3F/QFMGPGLGHREC RREC LREC MUTE(Lch)REC LEVELREC LEVEL(Rch)REC EQQ23Q29Q28MPXOPE AMPPB-RR-CHL-CHPB-

25、LMPXICDOLBYE.VOL(REC LEVEL)ON/OFFAUTO BIASQ44R/PMPXCONTROLLOG AMPMUTEOFF/B/CPLAY OUTREC IND12TRAYDRIVERQ38Q39Q36Q40Q41Q42Q43Q32Q33Q34Q35Q30Q17Q18Q19Q20D56D57ON/OFFREC RELAYQ27J1D46D47D51D50D49D48LINE OUT MUTEDRIVERD54D55LchRchRchLchD11BIASCONTROLSYSTEMCN5IC11(1/2)(2/2)IC11Q24DRIVERMUTEQ31FWD RECRVS

26、RECPACKPLAYCrO2SOL.PHOTO REFLECTORMOTORERASEHEADLchRchR/P HEADLIMIT SWMIC8(1/2)(2/2)IC8Q16SWEQRECJ2Q37IC9IC4IC2IC5IC6RECORD/PLAYBACK (X28-2XXX-XX) (A/7)+B LINE-B LINE2SC32462SC3940A2SD8632SD20122SC2785DTA124ESADTC124ESAUN41122SC1740S2SC24582SA1535A2SD2061UN42122SC3311ACXA1198APTC9413PBA6138BA6209HA1

27、2170NTBA10393UPC1297CANJM4565L-DX-S300(K) PCB/SD( 98.4.24 9:23 AM y W 3()AC5.0VAC25.2VFWD RECPLAYGNDCrO2COM GND+12VMOTOR BMOTOR APHOTO OUTSOLRVS RECPACKMETALNCMOTOR-()()()()()()()()()()()(X)()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()

28、()()()()()()()()()()()()()()()()()()()()()()()()()X()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()PACK SW2526272829303132333435363738394080797877767574737271706968676665NCNCLEVEL LLEVEL RCERESETX1X2GNDDOL OFFDOL B/CDOL R/PMPX ONNOR/OSCNORCrO2CrO2 SWFWD

29、REC INHBPLAY SWCAP MSOL S DATA S BUSYNC(VDD=5V)VDD(5V)Vfdp(-30V)G8G7G6G5G4G343211u50C128+1KR134R118680R13510KR11947KR1201KR1211K 1W10u50C129+-C127 10u16+R12610KR133100K10KR132R13047K4.7KR129R12847K4.7KR12777100KR110470u6.3C116+47u25C114+47u35C115+56KR10947u16C107+R10433047u25C109+C106R1015.6KR1025.6

30、K4.7R100R2271KR108330C1111000PR10710KR10610KR11210100u10C118+10u16C117+100u16C113+47u16C112+R1111K4.7R1053300u50C105+100u100C122+47u50C121+R115100R11322KR11410047u100C123+R11622KR1171047u35C124+47u35C125+C1020.01C1030.01R2204.7C1016800P12345111213141510789641REC RELAYBIAS ON/OFF474442434546BIAS 1BIA

31、S 2BIAS 3SEG N5048495152SEG M SEG GSEG FSEG HSEG CSEG P535455565758SEG DSEG RSEG ESEG JSEG KSEG B596061626364SEG ASEG SSEG TSEG UG1G224NCNCNCKR2KR1KR0NC(OPEN)AVR OFFLINE MUTEREC MUTELEDPHOTO1821222319201516171314CLOSE SWEVOL CLKEVOL STBEVOL DATATR OUTTR INREC INHBMETAL SWNC(OPEN)OSC OUTRVS 101112794

32、5612312404544434241100100100R197R201 100R202 100R203 100R217R138 560R209 1K1K1K47KR213R212R214R198C1006800P91086R191 100C1100.012728C1380.022R21656R124110KR125100KR12222K1321000P100u16C108+1/4W1/4W1/4W2W0.01C1661/4WW122120V240VT.FWH4WH5(M)(C)(X)(T,E): AC110-120V/50/60Hz: AC220V 50Hz: AC240V 50Hz: AC

33、230V 50HzGNDOUTIN76R123150K847R131 10K10u50C120+10u50C119+123456789103319181716151413121123272928252624212220323031R194R195R19610047KR20047K100R199747KR207R20547KR206100100R20412111716C135 100PC134 100P100PC133201847K47K192147K47KR215R210R21147K39383736353447KR218R21947KX1 8MHzR192 100R193 100656667

34、68697064636261605958575655545352515049484746747577787980321514CP147Kx6R226 1K1920211846474849505152535455565758596061626364656667686970R208560100u10C132+0.01C1580.01C104R13710K82KR136VR710K(B)1480787912314+14V+5V+12V+5V+5V+12V+5V+B+B+B+B+B+5V+5V-B-25V-25V-25V-25V+14V+14V+12V+12V+12V+12V+12V+12V+5V+5

35、V+5V+5V+5V+5V+5V 220-240VS NS MS GS FS HS CS PS RS ES DS JS KS BS AS SS TS UG1G2G3G4G5G6G7G8KR2KR1KR0OTE-LED+5VPOW-LEDF2F14132XTU.K.AUSTRALIAW122ABB.COUNTRYDESTINATIONX28-2892-70X28-2940-71X28-2940-20UNIT No.YESNONOS17NOYESYESEUROPEEGENERAL MARKETMCHINAC1/4W1/4WOPEN SW2111KR1 7POW-LEDF11F223KROOTE-L

36、ED+5V546G6G6 11KR2G8G898G7 10G7G5 12G5G3G4 1314G3G4S TS UG1G2 1516G1G21718S TS US KS BS AS S1920S AS S2122S BS KS RS ES DS JS D2423S J25S ES PS CS RS P272628S CS HS FS GS M2930S HS F3132S GS MS N33S NnpmeS Pfgcjhdrkb51FF32NP4SEG MSEG NS NS MS H6SEG GS GS F7SEG FS C8SEG H9SEG C32546s3254610SEG P11SEG

37、 RS R12SEG DSEG ES DS E1413SEG JS JSEG S S S1615SEG BSEG KS BS K17SEG AS A1918SEG TS T20NPSEG U331212345454s(d b)NP22NP2423NPNP25NP2726NPNP2928NPNP30NP3231NP33NPNPrbcsdetfgmh3735NP36NPNPNP38NP4039NPG2G24241NPNP434544G3G346G5G4G4G5pjkun504847G6G649G8G7G8G7F51NP5352FSEG T0V0V0VPLAY:5.0V-22.5V-22.1VSTO

38、P: 5.3VPLAY: 0V-11.8V-25.7V-25.7V-4.6V-11.0V-7.7V-25.1V-8.0V-21.5V-22.4V-26.2VCr02: 5.2VNOR:5.2V2.6V2.4V5.3V4.9VOPEN: 0VCLOSE: 5.3VOPEN: 5.3VCLOSE: 0VOFF: 5.3VLEO ON: 0.3V4.3V0V0V5.3V5.3V-26.0V13.5V29.5V-19.0V13.0V14.7V30.0V11.8V29.0V12.5V13.0V11.3V5.8V0.6V-16.0V-26.8V-13.8V25.0V5.3V5.8V0.6V-40.5V-2

39、6.2V-50.5V21.0V17.9V5.0V2.7V5.3V5.3V0V0V11.8VPLAY: 0VSTOP: 11.3VPLAY: 0.7V STOP: 0VG1G1S U5.3VAC5.0V-19.0V1KR2282W4.4V85.3V5.1Vbcdefgmhkjnp761u50C167+10R231100KR22947KR230AUTO BIASREC LEVELCOUNTERSTAND BYDOLBY NRBCCCRSMPX FILTERTYPETYPETYPEQ1ICRESETQ11D1Q8Q2 14VAVRQ3Q5Q4 Q6AVR12VD4AVR-25VRESETON/SPE

40、EDLEDTAPE AMPPHD22D21D20D3D27 D5D19D7D6D8D18D17D16D15D25D26D23D9D24D2Q75.0V AVRD14D28D13S17CN7CN1S16POWERD10Q9Q10MOTOR/SOLENOIDCONTROLIC7(1/2)u-COM(BOTTOM VIEW)OFFQ12CN3IC7(2/2)WH1CN2E1WH3STOPD30D33D36D31S2RECS5FFS8D34D37D39COUNTERS11D40EJECTFWD1GS10S7S4DOLBYPAUSERVSD32S3 D29S6UPS9REWD35D38S12G3GE5P

41、OWERD53E44GS13DOWNS12DIRCD41WH2E3E2OTED52S14D42 2SC2785(F,E) or 2SC1740S(Q,R) UZ-3.9BSB or MTZJ3.9(B): 2SD2061(E,F) or 2SD2012: 2SC3940A(R,S) or 2SD863(E,F): UN4212 or DTC124ESA: UN4112 or DTA124ESA: KBP02ML-6127: RD13ES(B2) or HZS13N(B2) or UZ-13BSB or MTZJ13(B): RD3.9ES(B2) or HZS3.9N(B2): RD11ES(

42、B2) or HZS11N(B2) or UZ-11BSB or MTZJ11(B): RD5.1ES(B2) or HZS5.1N(B2) or UZ-5.1BSB or MTZJ5.1(B): RD16ES(B2) or HZS16N(B2) or UZ-16BSB or MTZJ16(B): RD6.8ES(B2) or HZS6.BN(B2) or UZ-6.8BSB or MTZJ6.8(B): RD2.7ES(B2) or HZS2.7N(B2) or UZ-2.7BSB or MTZJ2.7(B): RD8.2ES(B2) or HZS82N(B2) UZ-8.2BSB or M

43、TZJ8.2(B): HSS104A or 1SS131: HSS104 or 1SS1336G5GS15OTECRSD43aaLRED1D52,53: CM1508C: B30-2513-05D20-27,29-51,54-59D13-19D11D9D8,128G20107G63D4,7D5,28D6D3,10D2Q3,7,9,10Q12-16,27-29,32-42,44,45Q17-20,23,24Q30,31D1Q6,43Q8Q2,5: 2SD1450(S,T): 2SA1535A: 2SC3246: CXP82324-386Q: 2SC3311A(Q,R) or 2SC245B(Y,

44、GR) or +30: BA6209IC5Q1,4,11,25,26,46IC10IC11IC8IC9IC6IC7: PST993D-T: NJM4565L-D: CXA1198AP: BA328: BA6138: BA10393IC3IC4IC1IC2: UPC1297CA: TC9413P: HA12170NTmgefrdpnkajhCN4cbD58D59Q45Q46SOLON/OFF SWIC1IC10(X28- ) (D/7)(X28- ) (C/7)ED1X-S300(M)(X28- ) (F/7)(E/7)(X28- )(X28- ) (B/7)TKMOQSLNPRY26-4290

45、-50X-S300CAUTION: For continued safety, replace safety critical components only with manufacturersrecommended parts (refer to parts list). indicates safety critical components. For continuedprotection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk ofelectric

46、 shock, leakage-current or resistance measurements shall be carried out (exposed parts areacceptably insulated from the supply circuit) before the appliance is returned to the customer.The DC voltage is an actual reading measured with a highimpedance type voltmeter with a cassette loaded at playback

47、mode. The measurement value may vary depending on themeasuring instruments used or on the product. Bias circuit DCvoltage is measured while in the record mode.DOLBY and the double-D symbol are trademarks ofDolby Laboratories Licensing Corporation. Noisereduction circuit made under license from Dolby

48、Laboratories Licensing Corporation.X-S300(K) PCB/SD( 98.4.24 9:23 AM y W 4835489469469456463478470498425814817816822RPEH420455482501467494439512416483462424401499499438441LM819829815823816817402426831830818819813812810811MM485459514449440507428429460461511419471406GT-2601HLD5065034444805164424524114

49、09505458451408484431448418510511472423468504422453454486477457BL515515475476464433502502496415519513465494434836840837832833838834839508427511421503417410407509528481520479497445443527521432R1802825809828826801803824820804805807821808827806450405123ABParts with the exploded numbers larger than 700 a

50、re not supplied. 11X-S300EXPLODED VIEW(MECHANISM)X-S300 EXP 98.4.24 9:20 AM y W 1Parts with the exploded numbers larger than 700 are not supplied. S16POWERS12 REV.MODES11COUNTER RESETS13 S 3S 2 S 4 S 6 S 5 S 7 S10S 8S 9ED1S 1DOLBY NRCCRSO.T.EX28(F/7)X28(E/7)X28(D/7)X28(B/7)X28(C/7)X28-2XXX-XX (A/7)S