Kenwood-XW320-tape-sm 维修电路原理图.pdf

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1、STEREO DOUBLE CASSETTE DECKX-W320SERVICE MANUAL 1997-8/B51-5348-00 (K/K) 3486STEREO DOUBLE CASSETTE DECK X-W32000811 DUBBINGNORM. HIGHO.T.E.REC LEVELMINMAXPOWERDOLBY NRCCRSRESET REV.MODEAB237237- ON OFFRECINPLAYOUTLINERLSYSTEM CONTROLAC 110 - 120VAC 220 - 240VCassette lid assy(A53-2021-08)Front glas

2、s(B03-3818-08)Cassette lid assy(A53-2022-08)AC power cord *(E30-)Phono jack(E11-0369-08)Slide switch *(S90-0125-08)Miniature phone jack (E11-0188-05)Power cord bushing(J42-0336-08)Panel(A60-1287-08)* Refer to parts list page on 16.X-W320(K) COVER( 97.11.29 4:36 AM yW 2RadioFans.CN 收音机爱 好者资料库X-W3202C

3、ONTENTS / ACCESSORIESAccessoriesCONTENTS / ACCESSORIES .2CIRCUIT DESCRIPTION.3ADJUSTMENT.6PC BOARD .7SCHEMATIC DIAGRAM .9EXPLODED VIEW .14PATS LIST .16SPECIFICATIONS .Back coverContentsAudio cord .(2)(E30-0505-05)System control cord.(1)(E30-2733-05)* AC plug adapter .(1)(E03-0115-05)Check that the f

4、ollowing 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-W320(K) COVER( 97.11.29 4:37 AM yW 3RadioFans.CN 收音机爱 好者资料库X-W3203CIRCUIT DESCRIPTION1. Microprocessor1-1 Microprocessor periphery block diagr

5、amPin No.I/OFUNCTIONKR0KR1KR2KR363FIP23SBCWCCW64FIP22SCCOUNTER BF.F AREV ASTOP A65FIP21SDREW AREV MODEDOLBYFWD A66FIP20SECOUNTER ADUBB HIGHDUBB NORCCRS67FIP19SFO.T.EPAUSERECORDSTOP B68FIP18SGREW BF.F BREV BFWD BKEY MATRIXREC MUTELINE MUTEPLAY B/AB BIASB R/PDATACLOCKSTROBEDOLBY C/BDOLBY ON/OFFLEVEL L

6、LEVEL RCLKSTROBEDATARESETLINE MUTEREC MUTESOLBCPMBCSPBB PACKR RECF RECB CrO2PHBB PLAYSOLACPMACSPAPHAA CrO2A PLAYA PACKBIAS NORBIAS CRO2PB AMPTAPE ATAPE BDOLBY NRREC EQIC 102HX-PROFLIC 201SYSTEM ICu-COM IC 101DRIVER BDRIVER AR/P MECHA BPB MECHA AKEYMATRIXCMAL2Z078ACMAL2Z077AX-W320(K) COVER( 97.11.29

7、4:37 AM yW 6X-W3204CIRCUIT DESCRIPTION1-2 Pin descriptionPin No.Pin NameI/ODescriptionAction17G7G1OFL tube grid signal output (G7G1)8VDDSUPPLY (+5V)9CLKOSystem IC clock output10STBOSystem IC strobe signal inputH11DATAOSystem IC serial data outputH/L12HXPROOHX-PRO bias switching L : ONL13PLAY B/AOB/A

8、 Head switching H : BH/L14DOLBY ONODOLBY ON/OFFH15DOLBY C/BODOLBY C/BH16MPXOMPX FILTER OFF/ONL17RSTIReset signal inputL18CPMAOA capstan motor ONH19CPMBOB capstan motor ONH20AVssGND21PHAIA mecha rotation detectionL22PHBIB mecha rotation detectionL23A PACKIA tape detection inputH24B PACKIB tape detect

9、ion inputH25A CrO2IA mecha CrO2 tape detectionH26B CrO2IB mecha CrO2 tape detectionH27LEVEL LICCRS, DPSS Lch signal input28LEVEL RICCRS, DPSS Rch signal input29AVDDANALOG SUPPLY (+5V)30AVREFFOR ADC31, 32XT1, XT2OPEN33VssGND34X1IClock oscillator35X2IClock oscillator36CSPBOB-Capstan motor speed High/N

10、orH/L37B BIASOB Bias ON/OFF H : ONH38B Mecha R/POB REC/PLAY switchingH : RECH39F RECIA-Fool Proof FWDL : REC OKH40R RECIA-Fool Proof BWDL : REC OKH41CSP AOA-capstan motor speed High/NorH/L42SOLBOB solenoid ONH43SOLAOA solenoid ONH44EQ SPO45S DATAI/OSerial data input outputH/L46S BUSYI/OSerial busy i

11、nput outputH/L47CEISystem StopL48ICConnect to VSS49LINE MUTEOLine mute controlH50REC MUTEORec mute controlH51BIAS NORMALOHX-PRO Bias switchingH : NORH52VDDSupply (+5V)53B PLAY SWIB-Mecha Mode SWL : PLAYL54A PLAY SWIA-Mecha Mode SWL : PLAYL55EQ 70/120OEQ switchingH : 70usH56OTEOOTE LED IndicatorL5760

12、KR30IKey return signal input(KR30)6170HSPOEQ SP HIGH & BIAS 70us6270SASIOFL tube grid signal output(SASI)71VLOADFL tube driving voltage(-30V)7277SJSOOFL tube segment signal output78ICOSupply (+5V) to FL79,80G9,G8OFL tube grid signal outputX-W320(K) COVER( 97.11.29 4:37 AM yW 7X-W3205CIRCUIT DESCRIPT

13、ION2. InitializeWhen the mechanism made an irregular action, follow the chart below for initializing.Commence initializingComplete initializingSwitch ON MTR(Wait for 1 sec.)Switch ONPLAY SWSwitch ONPLAY SWSwitch ON SOL(50 msec.)Wait for 1 sec.Switch OFF MTRNoNoYesYes3. Test mode3-1 Setting methodWhi

14、le pressing the STOP key (A DECK), turn the power switch ON.After turned the power ON, all lights are illuminated for 1.5 seconds and return to normal display with T indication.3-2 CancellationTurn the power switch OFF.3-3 Contents of the test mode1) (4 / 8 / 12) seconds recording.KEYST(SECONDS)DECK

15、 B STOP 7 + DECK B REC 4DECK B STOP 7 + DECK B PAUSE 88DECK B STOP 7 + DOLBY NR12RECRWDPLAYT(SEC)TX-W320(K) COVER( 97.11.29 4:37 AM yW 10X-W3206ADJUSTMENTSYSTEM CONNECTIONS(a) AZIMUTH ADJUSTMENTSCREWTAPE SPEED(HIGH)TEST POINTRECINPLAYOUTLINERLSYSTEM CONTROLAC 110 - 120VAC 220 - 240VOscilloscopeAC vo

16、ltmeterFrequency counterAC voltmeterAG(A)(B)12REC/PB UNITTP201(L)TP202(R)GNDR404To be added a 1k.R524Q404VR502VR501(A DECK)(B DECK)1K1KNo.ITEMINPUTSETTINGSOUTPUT SETTINGSCASSETTE TAPEDECK SETTINGSALIGNMENT POINTSALIGN FOR1Demagnetizationand cleaningPower OFF, demagnetization,cleaning playREC/PBhead,

17、 erasehead. cap-stan, pinchrollerDemagnetize the REC /PBhead by head eraser.Clean the REC/PB head,erase head capstan andpinch roller with a cottonswab immersed in alcohol. 2REC/PB headazimuthMTT-114,TCC-153SCC-1727(B)PLAYAzimuthadjustmentscrew.Maximize the output andadjust so that the Lis-sajous fig

18、ure nears a lineslanted 45.Tapespeed(A DECK)HIGHMTT-111TCC-100SCC-17273kHz, -4dBTP201orTP202(B)1. Playback a TEST TAPE2. Connect collector (Q404)/R404 to GND via1k.HIGH VR401Adjust so that the frequen-cy is 6kHz(HIGH), 3kHz(NOR) at the tape center.NOR.3. Disconnect a 1k.NOR. VR402Tapespeed(B DECK)HI

19、GH1. Playback a TEST TAPE.2. Connect collector (Q508)/R524 to GND via 1k.HIGH VR501NOR.3. Disconnect a 1k.NOR. VR502Playback level(A DECK)TCC-130PLAYVR403(L)VR404(R)775mVPlayback level(B DECK)VR503(L)VR504(R)MPX filter19kHz, -20dBREC LEVEL 0dBDOLBY B MODEL 203(L)L 204(R)775mV 2dBBias current1kHz,15m

20、V10kHz,15mV Adjust the REC LEVEL vol-ume so that the recordingmonitor output becomes15mV at 1kHz. Record 1kHz and 10kHz alter-nately. Rewind and playback record-ed signal.VR101(L)VR102(R)15mV 1dBRecording level1kHz, 200mV Adjust the REC LEVEL vol-ume so that the recordingmonitor output becomes200mv

21、at 1kHz. Record 1kHz.Rewind and playback record-ed signal.VR201(L)VR202(R)Adjust the variable resis-tors so that a playbacklevel of 200mV 0.5dB isobtained.FIG.(a)TP201(L)TP202(R)(B)II. Printed circuit board adjustment. Note : First perform the high-speed adjustment.Unless otherwise specified : each

22、; switch should be set as follows :TAPE : NORMAL, DOLBY : OFF, INPUT : LINE0dBs=0.775VI.Cassette mechanism section (REC/PB head adjustment)X-W320(K) COVER( 97.11.29 4:37 AM yW 11ACEGIBDFHJ2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)78X

23、-W320(K) PCB/SD( 97.11.29 4:31 AM y W 2ABDFHJCEGI21357461.7V4.7VNOR DUBB:0VHI DUBB:4.2V0VHI DUBB:0VNOR DUBB:3.0V13.3V0V1.3V0.8V4.7V0.8V6.6V6.6V6.6V13.3V4.3VREC:0VPLAY:2.5VREC:0VPLAY:4.3VREC:4.3VPLAY:0VREC:2.5VPLAY:0VPLAY:4.3VREC:0VREC:4.2VPLAY:0V13.3VPLAY/STOP:0VREC:REC:4.7VREC:4.2VREC:0V9.2VHI DUBB

24、:5.7VNOR DUBB:HI DUBB:10.2VNOR DUBB:9.2V13.3V11.0V11.8VREC:12.2VREC:11.6V9.2VDUBB:5.7VHI DUBB:NORSTOP:PLAY:11.8V0.8V3.7VHI DUBB:11.8VDUBB:NORPLAY:11.1VSTOP:11.8VSTOP:0.4VPLAY:2.7VHI DUBB:10.2VNOR DUBB:9.2V11.9V11.8VA PLAY:0VB PLAY:4.7VA PLAY:13.3VB PLAY:0VPLAY:0VB REC:0.6V13.3V4.7V1.3V0.8V4.7V13.3VC

25、ROZ:0VNOR:2.7VCROZ:2.8VNOR:0VPLAY:0.7VREC:0VNOR:1.9VCROZ:2.8V1.2V4.3V1.7V1.2V2.4V13.3V4.3V1.1V4.3V1.7V1.1V3.0V13.3V13.3V13.3V13.3VB PLAY:0V REC:4.7V6.6V1.8V1.8V6.6V6.6V0V0V6.6V0V1.3V1.3V1.3V6.6V1.8V1.8V6.6V6.6V0V0V6.6V1.2V6.6V1.3V1.3V1.3V1.3V1.3V1.3V0.8V11.1VPLAY:11.8VSTOP:PLAY/REC:11.8VSTOP:0.8V2.7

26、V0.4VPLAY:STOP:11.8V13.3V-19.8V0.7V6.1V4.3V3.0V4.9V5.5VPLAY:0.7VPLAY:0.7VRECORD/PLAYBACK UNITTAPE B (D40-1569-08)TAPE A (D40-1570-08)IC102IC401IC501IC301IC2MIC402499.4VR5250.039C108C1070.0394.8V5.6K5.6K9.4VC411C412R460R459-24.4V-24V+B+B+12V+12V+13V+9V213VR50143332121328+5V+5V+5V+5V+5V+13V+13V+20V+4V

27、+4V+4V+4V+4V+5V+12V+5.5VC211 0.1C2080.47u50R250R244 10KC2120.1VR201R1392.7KR5324.7KR5261.5KVR401R318470R314390-+-INOUT+C51510u35R51710C5210.018C513 10PR3163.3KR3223.3KC3105600PC3095600PR40747KR4081.5KR31218KR31118KR310100C3082200PC3072200PR3213.3KR3153.3K37R301 27KR302 27KR31910KR32010K38R9990R31747

28、0R31339027+13V+12V+13V+13V+12V+12V+13V+13V+13V+13V+9V+13V+13V+12V+13V+12V+13V+B+BR5281.5KR52747K19364.7KR52447KR523100KR522680VR502 1KR529680+C52010u3542C525 220PL502 10mHR530680R501 15KR502 15KC526 220PL501 10mHC514C5170.01R5142.22.2R513R51556KR53112KR51918K5600PC519 3900PR516 56KC5183900PR403100KR

29、40447KR402680R4012.7KVR401 2.2KVR402 1KR4654.7K1841R406 1.5KR40547KR1415.6KC105 10u35+R1385.6KR1375.6KR1352.2KR1362.7K+C1162.2u5022KVR102VR10122K+C1152.2u50R13333KC1130.01C1090.022C111560PR13433KR131270KC103150PC101470PC104150PC102470PC1100.022C1140.01C112560PR132270KR462 22KR461 22KR30810KR306100K7

30、4381526R463 10KR45368VR403220R4556.8K150K0.022VR40422068R45410u50C408+C40547u16R4566.8K150K0.022+C413100u16R409 220KC401 270PR450 220KC402 270P-+-R458 22K220P+C40710u50+C40647u16R457 1KR452330KR451330KC410390PC409390PC404220PC403C50410u5010u5047u16R5106.8KCC512 0.022R512 150KC503+C506470PR508150K+-4

31、390P220VR504C5102+C507470PR507150K+C508R5066886R5031KC505R5056847u167+-5390P220VR503C50931100R309R219180KR213150KR207220KR220100KR21468KR208100KR21536KR22168KR20975KR22222KR21627KR21056KR21736KR22856KR21156KR224150KR218180KR206120KR212180K50R303 27KR304 27K847123560.47u50R307 10K+C3021u50+C3011u50R3

32、05 100K+C305100u10+C3040.47u50+C303R5212.7KVR501 2.2K54212523532226243940R15110K51R1408.2K+C218 0.1u50+C214 10u35R2493.3K3.3K+C220 2200P+C216 0.1u50+C204 0.47u50C210 2.2u50R248R246 100KVR202 10KR252 4.7KR24210K37383435+C202 2.2u50R2363.9KR28010KR20268KR205100KR20147K343537382829303132R20347KR20447K3

33、23130292827C201 2.2u50+R2353.9KR241 22K+C203 0.47u5027R243 10KR245 100KR247+C209 2.2u50R251 4.7K+C2070.47u50VR20110KR28220+C42100u10R27220+C35100u16C340.1R9980+C239 10u35C217 0.1u50+C213 10u35+C215 0.1u50C219 2200PR31K+C610u35C81000u6.3+C7100u10+R556K+C922u50R4100KFH1630mAF1FH2123GNDRchLch21MTRAMTRB

34、3GND5A.PLAYMTR+B476PHA+5V8SOLA10APACKACR029GNDLch12Rch321MTRAMTRBLchRchGND34+5V65MTR+BA.PLAYSOLA8910ACR02APACK7PHA13254132GNDGNDLcH456GNDE.HRch1MTRA35GNDB.PLAYMTR.+B4MTRB2678+5VPHBSOLBBPACKNCF.REC1011129BCR02R.REC13213MTRBMTRAGND45687109MTR.+BB.PLAY+5VPHBSOLBBPACKBCR02111312F.RECR.RECNCGND2RchGND34L

35、ch1GND5E.H6LchRchE.HSCREW EARTHL-CHR-CHLMALMARECEQEQRECGND123456789181716151413121110DET.ABSO.DET.PEAKVCACOMPARATORPOWER SOURCESTABILIZINGPROTECTION CIRCUITTHARMAL DETECTINGDET.ABSO.DET.PEAKVCADRIVERPRE33LM-INGND2NNNCNMHNHCHMLM-INIREFFMFQF/QGHGLGP4847464544434241403938373635+C501100u16C511 0.022R511

36、 150K6.8KR5093417181920212223242526272829303132VSSVCC1NMY1Y3YY2Y0BAX3X0XX1X2VDD876543219111213141516+5V+5V+5V+5V)()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()MPB LEVEL (Lch)RchLchPB LEVEL(Rch)B-PB EQ.EQ.SPPB LEVEL (Rch)(Lch)PB LEVELA-PB EQ.LchRchSELECTA/BBUFFER+5

37、.5V AVRLEVELREC(Lch)(Rch)REC LEVELCSP SWCPM SWSOL SWB BIASNOR SPEEDBIAS OSCSOL SWCPM SWCSP SWNOR SPEEDHI SPEEDSWB REC/PLAYHX-PROBIAS(Rch)(Lch)BIASTP501HI SPEEDQ306Q401Q406Q405Q404Q301Q307Q302Q305Q303Q304Q410Q411Q308Q507Q505Q506Q512Q511Q510Q509Q508D505Q504D504L503Q501Q502Q503D503D502D401Q403Q402Q103L

38、101L102D402Q409Q408Q407D501RLY501Q101Q202Q201ZD7D25D26ZD2D6D5Q1ZD1D7D9CNS402CNS401CNS501CNS502JK301RchLchLchRchREC INPLAY OUTDOLBY B/C NRRECTDOLBY B/C NRRECTREC-EQCONTROLERX-W320(K) PCB/SD( 97.11.29 4:32 AM y W 3TKMOQSLNPR-31.5V4.8V-19.2V6.6V6.6V6.6V6.6V6.6V6.6VON:3.9V OFF:0VB:0V C:3.9V0V13.3V7.2V6.

39、6V6.6V6.3V6.6V6.6V0.7V6.6V6.6V6.6V6.6V1.4V-22.5V-25.0V19.4V20.0V11.9V4.8V4.5V0.3V4.8V0.2V1.0V4.8VA.PLAY:0VB.PLAY:0V4.8V4.5V-12.6V-12.4V-12.4V4.6V-19.2V-24.4V-22.2V-22.2V-24.2V-24.4V-24.4V-18.5V-24.4V-24.4V-18.3V-24.1V-12.3V-9.4V-12.4V-12.4V-22.2V-22.2V-22.2V-22.2V-22.2V-22.2V-22.2V4.8V4.8V4.8V4.8V4.

40、8V4.7V4.7V0V0V2.2V2.3V70uS/HI:4.7V120us:0V 70uS:4.7VNOR:0V HI:4.7V4.5V4.5V0V7.2V6.6V6.6VDISPLAY UNITIC1IC101IC201LRDOLBY NR321321AC110-120V220-240V50/60HzT.FAC220-240VSW702AC110-120V0.047C701K702K701AC CORDK7010.047AC120V60HzT.FSW701K702AC CORD12C701SW701120.5 1/4WT.FC7010.047SW7011AC CORD50HzK70122

41、1C : AC220VE/T : AC230VX : AC240VK702R2613.3K P1 P13.0VACR1710K0.3V6.6VPAUSE BSDSFSTOP BKR3NOKR2KROKR1NC11121315161714181910987654321G8G7G6G5G4G3G2G1SCSDSESFSGSHSISJSKSLSMSNSOG9SASBGNDF1+5VR3R2R1R0SASBSCSDSESFSGSHSISJSKSLSMSNSOG9G8G7G6G5G4G3G2G1F2CCRSREW ADUBBHIGHCOUN ASEDUBBNORREVERSEMODEREV BFWD E

42、FF BREW BSGSTOP ADOLBYREV ACCWNOCOUN BFF ACWSBSCFWD AREC BOTE-24V-24V-32V-23V+5V+5V+5VR1131KR1231KR125 1KR165 56K-24V-24V-24V-24V+5VQ206,209Q205,2104039260213+5V+5V2141516+12V+20V+5V+5V+5V+5V+5V+5V+5V+19V+19VR2832.2KR1031KR105 1KR1091KR1071KR1111K+C4010u35C228 0.033P9P7P15P4P8GNDOUT INFH3FH4F2 1A-B+

43、BSIGNAL LINEGND LINERECORDING LINE+C4410u1636+13V+13V+13V+13V+13V+13V3220212224252623272928313032R258 560+C250 10u352200PC2242200PC222R256 22KR254 1.5KC242330P6.8mHL2024R284 2.2K4.7KR282R260100KC2304700P+C2260.1u5012132C252 3900P6+C2250.1u50C241330P6.8mHL201R25522KR253 1.5KR2705.6KR2685.6KR2665.6K11

44、910C240 18PC238 18PC236 56P820R262 18K+C232 0.47u50+C234 1u502KR277820R2741.8K2KR276R278C229 4700PC2270.0331.8KR273R2754.7KR281+C237330u16R259 100K+C414.7u50R2622KR25100+C3910u35R2410K+C38100u50+C3747u35R2310K+C33100u25+C231 1u50R267 22KR269 22K32146+C235 1u50+C233 0.47u50R257 560C2232200PC2212200PC

45、251 3900P21+C5100u160.1C4+C24700u35C30.1+C312200u35C320.1C300.022R3233R120 10KR122 10K51R118 100KR116 100KR117 1KR115 1K282725263738XL101C10.022R311 1/4W+C3647u3576687069727374757679776766656463626059585756575658625964631312C312220PC3130.022C311220PR1982C260.01R328100KR327100KR323 100KR324 330R320 1

46、00KR325 330R161KR3010KR1810KR15100+C29100u6.3C430.047R142.7KR124.7K+C4522u35+C241u50R134.7KR112 10KR114 10K1819180345R108 68KR101 10KR102 10KR104 10KR106 10KR110 68K2122242314161591011124365124356R121 1KR119 1K414243R166 10KR16210KR16310KR16110K4950R12610KR12410K5445676667686970727374757677657980GND

47、1+5VF132OTE4R265R3R0R187SBSA109SC11SE1312SDSGSF1514SH16SJ18SLSK1920SM21SO23SN22G8G92425G726G528G3G42930G627G231F233G13217SIVR-1A1AG8G9ICSOSNSMSLSKSJVLOADSISHSGSFSESDACRO2BCRO2LEV.LLEV.RAVDDAVREFXT1XT2VSSX1X2CSPBB BIASB-R/PF RECR REC8079787776757473727170696867666525262728293031323334353637383940G7G6

48、G5G4G3G2G1VDDCLOCKSTROBEDATAHXPROPLAY B/AD.ON/OFFD.C/BMPXRESETCPMACPMBAVSSPHAPHBA PACKB PACKSCSBSA70 HSPR0R1R2R3OTEEQ 70/120A. PLAYB. PLAYVDDBIAS NORR. MUTEL. MUTEICCES BUSYS DATAEQ SPSOLASOLBCSPA123456789101112131415161718192021222324646362616059585756555453525150494847464544434241DATACLKSTBGND1INC

49、NTRP1BIASPB1D-GND1A-OUTNR-INVREFNR ON/OFFNPXNR C/BMPX OFF/ONVCCVR-INCNTRP1REIPB11A-OUTNR-INVREF646362616059585756555453525150491234567891011121314151653R130 100KR128 100KR129 100KR127 100K123()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(-B LINE+B LINE()()()()()()()()()()()()()()()()()()

50、()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(601-610,612-627(K,P) TYPE(I,Y,M) TYPE(E,X,T,C) TYPES1S1S604S602D601S601D605S605D604D602D609S609COUNTER ADUBB HIGHDUBB NORREV MODECCRS MODECNP601DOLBYEQ.SP-25V AVR+13V AVR+12V AVRSYS