Kenwood-XSE-7-G-Service-Manual电路原理图.pdf

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1、SYSTEMCONTROLRECINPLAYOUTLRPhono jack(E63-0046-15)Rectangular receptacle(E08-0311-05)Power cord bushing(J42-0083-05)AC power cord *(E30- )STEREO AUTO REVERSE CASSETTE DECKX-SE7/SE7(G)/SE9SERVICE MANUAL1997-8/B51-5342-00 (K/K) 3209Illustration is X-SE7.* Refer to parts list on page 14.Refer to X-E9an

2、d X-SA7service manuals (B51-4926-00/B51-5214-00), if yourequire in detail.1CRCR7283stereo auto reverse cassette deckon/standbyCRLSrev. modeDolby NRBC07front loading mechanism 7CRPanel(A29-0873-03)Panel *(A60-)Escutcheon(B07-2363-04)Panel(A60-1202-03)Knob(K29-6744-04)Sub panel(A22-1779-11)Indicator(B

3、12-0319-04)Indicator(B12-0319-04)Knob(K29-6745-13)X-SE7(K) 1P 97.11.29 4:13 AM yW2X-SE7/SE7(G)/SE92CONTENTS / ACCESSORIESDISASSEMBLY FOR REPAIRCIRCUIT DESCRIPTIONCONTENTS / ACCESSORIES.2DISASSEMBLY FOR REPAIR.2CIRCUIT DESCRIPTION.2CONTROLS.3ADJUSTMENT.4PC BOARD.5SCHEMATIC DIAGRAM.7EXPLODED VIEW.11PA

4、RTS LIST.14SPECIFICATIONS.Back coverContentsAccessoriesHPower does not turn on and tray does not come out.1. Turn the pully in the direction of the arrow in the draw-ing with a finger (1).2. If the tray comes out to the front side, pull out the trayby hand forward the front (2).Audio cord (2)(E30-06

5、15-05)System control cord (1)(E30-2628-05)LEDITEMPOWERDOLBY BDOLBY CRVSMODEUNDER ADJUSTMENTPB CALIBERRLRPB LEVELERRLRREC CALIBERRLRREC LEBELERRLRBIAS DACERRLRPB ALL OKALL OK Correction of circuit descriptionLED indication state.X-SE7(K) 1P 97.11.29 5:00 AM yW31Tape trayLoad a cassette tape here.2“on

6、/standby” key/indicatorPress to turn the power on/off (standby). This key is notused when the unit is connected using the systemconnection.3Dolby NR key/indicatorsPress to switch the Dolby Noise Reduction on/off.4Play (23) keys/operation indicatorsDuring stop and pause: the tape direction lights red

7、.During playback and recording: the tape direction lightsgreen.During fast forward and rewind: the tape directionflashes green.5Open/close (0) keyPress to open the tape tray when loading orunloading tape.6Stop key (7)7Pause (8) key/indicator8Record () key/indicatorPress to start recording. When pres

8、sed during recording,the tape stops after leaving a non-recorded section(blank) of about 4 seconds.9Fast forward and rewind (1) keys0“rev. mode” key/indicatorPress to switch the tape reverse mode (two-way or one-way) of the deck.!CRLS key/indicatorPress to set the recording level automatically accor

9、dingto the recorded music source.stereoautoreversecassettedeckX-SE9on/standbyrev.modeDolbyNRCRLSBCCRCR10 27 3CR812456890!37-front loadingmechanism-(X-SE9)X-SE7/SE7(G)/SE93CONTROLS1Tape trayLoad a cassette tape here.2“on/standby” key/indicatorPress to turn the power on/off (standby). This key is notu

10、sed when the unit is connected using the systemconnection.3Dolby NR key/indicatorsPress to switch the Dolby Noise Reduction on/off.4Play (23) keys/operation indicatorsDuring stop and pause: the tape direction lights red.During playback and recording: the tape direction lightsgreen.During fast forwar

11、d and rewind: the tape directionflashes green.5Open/close (0) keyPress to open the tape tray when loading orunloading tape.6Stop key (7)7Pause (8) key/indicator8Record () key/indicatorPress to start recording. When pressed during recording,the tape stops after leaving a non-recorded section(blank) o

12、f about 4 seconds.9Fast forward and rewind (1) keys0“rev. mode” key/indicatorPress to switch the tape reverse mode (two-way or one-way) of the deck.!CRLS key/indicatorPress to set the recording level automatically accordingto the recorded music source.on/standbyrev.modeDolbyNRCRLSBCCR10 27 3CR8CRste

13、reoautoreversecassettedeckX-SE712456890!37-front loadingmechanism-(X-SE7)X-SE7(K) 1P 97.11.29 4:14 AM yW7X-SE7/SE7(G)/SE94ADJUSTMENTAC voltmeterAC voltmeterOscilloscopeDistortion meterAGSYSTEMCONTROLRECINPLAYOUTLRKSJ-0816OrderItemInputsettingOutputsettingDecksettingAdjustment pointsAdjustment method

14、Fig.Unless otherwise specified, set the respective switches as follow : TAPE : NORMAL DOLBY : OFF INPUT : REC IN OUTPUT : PLAY OUTI. Cassette mechanism section (Recording/play head adjustment)Demagnetizationand cleaningPower : OFFDemagnetization,cleaning, PLAYRecording head,erase head, capstan,pinch

15、 rollerDemagnetize the REC/PLAY head with thehead eraser. Clean theREC/PLAY head, erasehead, capstan andpinch roller using acotton swab slightlydamped with alcohol.Azimuth of theREC/PLAY headTCC-153MTT-11410KHz, -10dBLINE OUT(Lch or Rch)PLAYAdjust the output tomaximum and adjustthe azimuth adjustmen

16、tscrew for the Lissajouswaveform pattern ofthe oscilloscope tobecome close to a 45straight line.II. Printed circuit board adjustment (X28-293)(1)Tape speed(normal)TCC-110MTT-1113KHz(A)PLAYMOTOR VR.Adjust so ; that thefrequency is 3KHz atthe tape center.(2)Playback levelTCC-130400 Hz(A)MANUALADJUSTME

17、NTMODE PLAYADJUSTMENTVALUEUP : DOLBY KEYDOWN : RVSPLAY KEYCHANGE OFADJUSTMENTMODE CRLS KEYOutput level : -1dBs(3)Bias currentTCC-108A12.5KHz, -21dBm(A)MANUALTEST MODEREC and PLAY-21dBm(4)Recording levelTCC-108A400Hz, -21dB(A)MANUALTEST MODEREC and PLAY-21dBmRVSFWDHThe method of the manual adjust-men

18、t mode.(1) SettingShorting the TEST pin of (X28-)(A/5) TP5 wTP4 with thediode, plug the power cord to theAC wall let.(2) Refer to manual adjustmentmode(3-3), if require moredetails.(A) Measurement Equipment ConnectionX-SE7(K) 1P 97.11.29 4:14 AM yW8ACEGIBDFHJ2 1357 46EB16441 24806540 2511101613BE131

19、101391111111210110155121810BEBBBBB EB EEEEE19EEBB151101IBEBEBEGOREC INPLAYOUTSYSTEMCONTROLACOUTLETEBEBEBEEBEEBBBBEBEBEB EEBEBEBEBEBEBEBEBEEEEBBBBRefer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view)56X-SE7(K) PCB/SD( 97.11.29 4:19 AM yW2ABDFHJCEGI2 1

20、357 466.4VREC:0V6.4V6.5V1.7V1.7V6.5V6.5V6.5V6.5V6.5V6.2V6.4V7.0V7.0V6.2V 6.2V7.0V6.4V6.5V6.5V6.5V6.5V6.5V1.7V1.7V6.5V6.4VREC:0V6.4VCRO2/METAL:5.0V NORMAL:0V25.8V5.1V12.6V12.9VREC:4.8VREC:0V7.9V7.3V12.9V9.8V3.7V1.3V0.7V3.7V0.7V1.3VPLAY:12.9V REC:0VPLAY:0V REC:5.0V REC:4.4VPLAY:0V0.5V0.8V7.3V0.6V0.5V0

21、.8V12.3V12.3V5.0V11.6V12.2VPIN12345678918 17 16 15 14 13 1112 10 PINNORMALCRO2METALMETAL CRO2NORMAL1.9V4.4V3.2V4.4V2.4V1.9V2.6V4.1V 3.2V 3.6V12.9V0V12.9V1.8V2.9V4.38V2.3V3.4V1.7V2.9V2.64V4.1V12.9V 1.69VMODE:RECORDING IC8 VOLTAGE7.0V10u16C229+C239 1u50+22u16C209+C21022u16+10u16C233+10u16C232+22u16C23

22、4+C238 100u16+47u16C21+C214 1u50+1u50C114+C122 0.1u50+C124 0.1u50+C126 10u16+C130 0.1u50+C132 2.2u50+C131 2.2u50C125 10u16C121 0.1u50+1u50C113+C123 0.1u50+C129 0.1u50+() )( () )()() )()()()()()()()()( )( )()()()( () )()()()( ()( ()()()()()()()( )( )( )1817161514131210PROTECTION CIRCUIT THARMAL DETEC

23、TINGPOWER SOURCE STABILIZING+15VDET. ABSO.DET. PEAKDET. ABSO.123DET. PEAK4VCA11DRIVERPRE7 VCACOMPARATOR56GND890.022C225220K R2190.01 C2210.022C227R221 33KC223 560P33KC2280.0220.022C226C2220.01220K R220C224560PR222C23010P1234564123HXL4150PC218220PC22016220P4C2193 2L3EHC217150PEH4 6L93 125C231 0.010.0

24、1C23722KR22610 1/4WR22410R2231/4W5600PC236R225 22KC235 5600P68R2334.7KR235K1150K R207390PC20510u16C203+R205160R2030.022 C2076.2K 12435160R2046.2K R206150K R208390PC20678960.022 C20810u16C204+C201 680PR201 150KC202 680PR202 150KQ31,3210mHL7220PC21515KR21115KR21210mH220PC216L8Q4410KR21410KR2131KR22910

25、R23022KR22710R234R2285.6K1/4W1/4W109876543211112R218 1KR217 1KR216 10KR215 10K3.3KR2311KR232Q47,48121189107654132PLAY/RECPLAY LchGNDPLAY RchREC LchREC RchBIAS RchBIAS LchBIASERASEEH GND13V1 2 3 4 5 6GND1OUT12Vz13Vref4Fin5Rin6Vcc17Vcc28Vz29OUT210C20 0.110R45C18 0.1R44 1KR42 1KR43 1K1/4W123 45R1093.9K

26、C1076800PNCL1MPX1.5K R107R158 18K56E. VOL E. VOL71180VREF7778791A3254REF VR3 VR2747576VR1 GND7273DAC SBIT67GND VR1686970VR2 VR3 BIAS6566DAC SBIT64 631AVREF6062 61585957REC OUT876109B/C NR DOLBY1211VOLRECTEQLMA+ SBITDAC +LMADAC SBITREC OUTB/C NR DOLBY5455515253RECTVOL EQ 4950C10310u16+1u50 C105+R103

27、33K1u50 C143+1u50 C154+C10410u16+C1061u50+C1441u501.5K R1086800PC1083214R1105L2NCMPX3.9K39KR10539KR106R104 33KC213 1u50+3300PC2113300PC2121.5K1.5KC118 2200PC116 2200P22KR1140.033C112220PR112 2.2K10mHL6R116 560C110C120 2200PR126 10KR130R128 4.7KC134 1u50+22KR1204.7KR1182.2u50C128+1.1K R122R127 4.7KC1

28、33 1u50R125 10KC119 2200PC115 2200PC117 2200PR115 560C127R1214.7KR117 R11922K1.1K2.2u50+C111C1090.033220P22KR113R111 2.2K10mHL53300PR161 6.2K0.112K1.2KR163C146R162C14547KR160 120KR164 22K1 2 3 4 5 6 7 8 910 1514131211R210R2091 2 3 4 5 6 7 8 9101 3 4141350 46 42 41 40 39 32 29631 2 54 6 87109 21 3 4

29、5 87 91110 1312 14 15REC. RMUTE +BBIAS. R13VBIAS. LCLKDATASTRESETREC. LLEV. L5VS. BUSYS. DATAD. GND A. GNDPLAY. R 120/70400/12.5kPLAY. LOSC ATTOSCLINE MUTE REC MUTELEV. R1234567891013 111247KR74.7KR83.3K R1047KR940 41R6 100 R5 100 R3 100 R1 10047K R54R2 100100R41R401006564676678 77 76 59 75 74 4544

30、52 51 484342466138 39504947REC F HALL OUT SOL HALF GND 12V MOTOR + MOTOR COM MODE CrO2 METAL REC R OPENCLOSE COM MOTOR MOTOR +EHLch RchGND EH GND+ERASE(BRN)+E (BRN) -E (BLU) +R (GRN) -L (ORG) +L (RED)LchRch+12VGND(BLU)-ERASE-Rch(YEL)+Rch(GRN)(RED) +Lch-Lch(ORG)EARTH(WHT)-R (YEL)GND (WHT)1 2 3 4 5EH

31、EH GND Rch LchGND1234567891013 111221RchLch6543CLOSE OPEN COM MOTOR -(CCW) MOTOR +(CW)FEW REC HALL OUT SOL HALF GND 12V MOTOR +(CW) MOTOR (CCW) COM MODE CrO2 METAL REV RECDOLBYHX PROERASE OSCQ45Q46D33Q44Q33Q31Q32IC7(1/2)(2/2) IC7PLAYMUTEPB EQRELAY SELECT. PLAY/RECD32Q41Q43Q42EH CONT.Q48Q47CONT. BIAS

32、CN12CN11CN5D18D20CN6Q24Q23Q27Q28Q29Q30D22CPMCONT.Q6Q8CONT. SOLENOIDQ7Q9D8D9CN10CN4MOTORDRIVECN2CN3CN9LchERASEHEADR/P HEADRchPHOTO REFLECTORMOTORS6 S5 S4 S3 S2 S1SOLTRAYMOTORS8S7LchRchIC8(X28-2932-71) (C/5)IC6(X28- ) (B/5)R/P/E HEADHEAD PCBMECHANISM (D40157405)CAUTION:For continued safety, replace sa

33、fety critical components only with manufacturers recommended parts (refer toparts list). indicates safety critical components. For continued protection against risk of fire, replace only with same typeand rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurement

34、s shall be carried out(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette loadedat playback mode. The measurement value may vary depending o

35、n the measuring instruments used or onthe product. Bias circuit DC voltage is measured while in the record mode.X-SE7(K) PCB/SD( 97.11.29 4:19 AM yW3REC: 5.0VOTHER: 0VPLAY,REC,REC PAUSE: 5.0VOTHER: 0VAC22.0V5.1V5.1V4.7V4.8V5.1V11.3V25.5V12.3V12.9V0.6V5.7V6.1V12.3V14.0V13.5V25.8V12.9V26.0V5.1V4.7V5.1

36、V0V 4.8V0V0V0.6V1.3V1.3V3.2V3.5V1.3V1.3V1.3V1.3V1.3V1.3VNORMAL:2.0VMETAL/CRO2:3.3VSTOP:4.4VPLAY/REC:0VREC: 0VOTHER: 4.3V1.2V6.3V12.9VDOLBY OFF:0V DOLBY ON:5.0VDOLBY B:0VDOLBY C:5.0VPLAY:0V REC:5.0VOTHER:4.3V REC:0V+()()()()()()()()C158 22u35+( )( )( )( )( ) () () () () () () () ()( ()()()()()()()()(

37、)()()( )( )( )()( ()() )( ()()()()()()()1u50C23+1u50C24+C14 1u50+10u16C8+C610u16+C7 47u16+C9100u10+100u16C5+1000u35C11+1000u35C1+1u50C22+) () () () () )()( () )()() )()()()()()()()()()() )() () () )( () )(KS0KS1KS2KS3IREF1314EQ RECEQ-CONTROLERNNNC171615NMHNHC20191821HM22 23 24GHGLGPDAC SBIT25 26 27F

38、MFQF/Q28 29 30BIAS VCCEQ REC4748ADJ. BIASDAC SBIT31 32VCCBIAS33 34 35 36GNDNMCONTRESET MPXSW C/BON/OFF444546434237 38C39 4041LOGIC ILLR159 24KC136 2.2u50R124 1KR145120KR13947KGPR140R14651K36KGLR141R14756K30KGHR142R14868K56KF/QR143R14943K56KFQR144R150220K220KFMNCNNR123 1K47KC155 1u50C156 1u50C157 1u5

39、02.2u50C135+C141 18PC138 1u50+R132 100K C137 1u50+R131 100K R151 100KR152 62K R157 3.9K C139 18PR154 5.6K R153 5.6K C140 56P R155 5.6KC142 100PR156 1K29 32 39 40 41 42 46 50220PC102220PC101100R102100 R101220P220PC150 C1491.2KR1334.7K R1374.7K R1381.2K R134R13656KR13556K0.01C148100K R168 100K R167 22

40、0P C152 220P C151R169 56KR166 10KR165 10K1314143REC MUTELINE MUTECLOSESOL802564S. BUSYOPEN179CASS. SWFin2678R. INH ARin2777READ2876AVSSCE2975TEXNC3074TXNC3173VSSVDD3272XTALA3371EXTALR. MUTE3470RSTL. MUTE3569NCOSC ATT3668NC400/12.5k3767NC120/703866NCCR F/S3965NCS. DATA402DATATEST 2633CLKA. ADJ624PH S

41、WM. ADJ615NCTEST 1606OSC OUTKS0597NCKS1588GNDKS3579GNDKS25610GNDNC5511GNDNC5412NCNC5313STBNC5214DATAKR25115PLAY/RECKR05016BIASKR14917CLK SYSTEM ICNC4818ERASELED24719PLAY SWLED04620LEVEL. RLED14521LEVEL. LNC4422R. INH BNC4323I/INC4224CPMNC41E2 PROMSYSTEM IC6566677475767778R39 10K41R55 47K42 4344 45 4

42、6 47 48 49 50 51 52R56 47KR53 47KR51 47K403839C170.0110MHzX159R59 10KR61 47K R60 47K R62 47K1 2 3 4 5 6 7 8 91020 19 1815 14 161820 19 16 15 14R63 47K R64 47K R65 47K R66 47K3 4 5 6 7Q131615KR521u50C13+R38 100K10K R371KR460.01 C150.01 C160.022C271KR271.5KR26680 2WR244.7 R231.8GNDOUTIN1/4WR22100 1/4W

43、47u16C3+C2R2110K2.7 1/4W+10u16C4R2010KR191000P12313 2+5.6KR255.6KR280.01C2512T14VSSDATAA23CLKA0A12VCCNC15 6 7 8C12 0.01R3522KR331K22KR34R29 100K330 R32 330 R31R30 100KGNDS.DATAS.BUSYS.GND34105150 R251150R252R2531507LED G21LED G12LED G08KR29KR1 KR061 2 3 4 5 6 7 98101LED G12LED G03KS04KS15KS36KR07LED

44、 G28KR29KR110KS26162 6347K R5847KR576480163R361K621801/4W1/4WP1RECORDING LINEGND LINE SIGNAL LINE1.2K 1WR1731.2K 1WR172 R1711.2K 1WR129C147+100u1647KR4822R471/4WR670.01C10C19 0.01D66 REC D62PAUSED67 D63DOLBY CD68 D64RVS MODEDOLBY BCRLSS9D49S5D45S10D50S6D46S1D41S2D42D51S7D47S12D52S8D48S3D43S4D441234L

45、chRchRECPLAYRch LchQ21Q22MUTED24 D23Q25Q26D10D21J2J3Q13KS03DRIVEQ14Q16 Q15TEST MODEQ11Q12Q10RESETD17Q3Q2D4D19u-COM5VAVRRESET12V AVRD2D3Q1Q4Q513V AVRD7D5D1D6E1E2WH3CN1AC INE2ROMD12 D11D13D14D16D15SYSTEMCONTROLFWDRVSSTOPFFREWPAUSERECDOLBY NRCRLSON/STANDBYOPEN/CLOSERVS MODES11CN7WH4E3230V50HzQ45,46 Q44

46、 Q41 Q33 Q31,32 Q25,26 Q23,24 Q21,22 Q1316 Q8,9,11,12,27,28,30,42,43,47,48 Q7 Q6 Q4,5,10,29 Q3 Q1,2 IC8 IC7 IC6 IC4 IC3 IC2 IC1 D6171 D32 D21 D18 D1117 D8,9,33 D57,10,19,20,2224,4152 D4 D2,3 D1: 2SC2785(F,E) or 2SC1740S(Q,R) : DTC124ESA or UN4212 : 2SC3940A(R,S) or 2SD863(E,F) : DTA124ESA or UN4112

47、: DTC143TSA or UN4216 : DTA124EUA or UN5112 : 2SD1302(S,T) : 2SD2114K : UN5119 : DTC124EUA or UN5212 : 2SA1286T11 : 2SA1534A(R,S) : 2SC4081 : 2SC3246 : 2SD2061(E,F) or 2SD2012 : UPC1297CA : TA8125S : BA6209 : XL24C01AP : PST993DT : HA12167FB : CXP84124144 Q : B30243005 : UZ8.2BSB or MTZJ8.2(B) : UZ4.7BSB or MTZJ4.7(B) : UZ6.8BSB or MTZJ6.8(B) : MA111 : 1SS131 or HSS104A : 1SS133 or HSS104 : UZ-5.1BSB or MTZJ5.1(B) : UZ-6.2BSB or MTZJ6.2(B) : KBP02ML6127(BOTTOM VIEW)(X28- ) (D/5)(X28 ) (E/5)X-SE7(E)IC1IC3IC4(X28 ) (A/5)IC2R254 1KD65D61D69ON/STAN