Aiwa-NSXAVF960-cs-sm维修电路原理图.pdf
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1、anuaCDSTEREOSYSTEManuaSERVICENSX-MT960NSX-AVF960ISYSTEMRETrINSX-AVF960(TYPE: LH)CD-CASSEIVERISPEAKERGIf requiringinformationabouttheCDmechanism,seeServiceManualof6ZG-1,MMCodeNo.09-984-249-90T.RadioFans.CN 收音机爱 好者资料库TABLEOFCONTENTSPROTECTIONOFEYESFROMLASERBEAMDURINGSERVICING.3PRECAUTIONTOREPLACEOPTIC
2、ALBLOCK. 3NOTEINBEFORESTARTINGREPAIR. 4SPECIFICATIONS.6ELECTRICALMAINPARTSLIST.7TRANSISTORlLLUSTRATION.13ICBLOCKDIAGRAM-1.14BLOCKDIAGRAM-1(MAIN/FRONT). 15BLOCKDIAGRAM-2(PRO- LOGIC). 17WIRING-1(MAIN: U,LH).19SCHEMATICDIAGRAM 1(MAIN: U) . 21SCHEMATICDIAGRAM-2(MAIN: LH). 24SCHEMATICDIAGRAM-3(TUNER). 27
3、WIRING-2(FRONT).29SCHEMATICDIAGRAM-4(FRONT). 31SCHEMATICDIAGRAM-5(RELAY). 34SCHEMATICDIAGRAM-6(PRO- LOGIC).s. 35WIRING-3(PRO-LOGIC).37WIRING4(JOG/RELAY/KEY). 39WIRING-5(DECK).41WIRING-6(POWER).42ADJUSTMENT1cTUNER/DECK. 43PRACTICALSERVICEFIGURE. 45ICDESCRIPTION.47ICBLOCKDIAGRAM- 2 .48FLGRIDASSIGNMENT
4、&ANODECONNECTION. 53MECHANICALEXPLODEDVIEW1 / 1 . 55MECHANICALPARTSLIST1 / 1 . 57TAPEMECHANISMEXPLODEDVIEW1 / 1 .s.o. 58TAPEMECHANISMPARTSLIST1 / 1 . 60SPRINGAPPLICATIONPOSITION. 61SPEAKERDISASSEMBLYINSTRUCTION. 62SPEAKERPARTSLIST.s.63ACCESSORIES/PACKAGELIST. 64REFERENCENAMELIST.s.652RadioFans.CN 收音
5、机爱 好者资料库PROTECTIONOFEYESFROMLASERBEAMDURINGSERVICINGThissetemployslaser.Therefore,besuretofollowcarefullytheinstructionsbelowwhenservicing,WARNING!WHENSERVICING,DONOTAPPROACHTHELASEREXITWITHTHEEYETOOCLOSELY.INCASEITISNECESSARYTOCONFIRMLASERBEAMEMISSION.BESURETOOBSERVEFROMA DISTANCEOFMORETHAN30cmFROM
6、THESURFACEOFTHEOBJEC-TIVELENSONTHEOPTICALPICK-UPBLOCK.AAWCaution:Invisiblelaserradiationwhenopenandinterlocksdefeatedavoidexposuretobeam.IAdvarsel:UsynligIaserstAlingvedAbning,n&sikkerhedsafbrydereerudeaf funktion.Undguds=ttelseforstrhling.VAROITUS!LaiteenKayttaminenmuullakuintassakayttoohjeessamain
7、itullatavallasaataaaltistaakayt-tajanturvallisuusluokan1ylittavallenakymattomalleIasersateilylle.VARNING!Omapparatenanvandsp/Iannatsattanvadsomspecificerasidennabruksanvising,kananvandarenutsattasforosynlingIaserstrAlning,somoverskridergransenforIaserklass1.PrecautiontoreplaceOpticalblock(KSS-213F)B
8、odyor clotheselectrostaticpotentialcouldruinlaserdiodein theopticalblock.Besureto groundbodyandworkbench,andensureclothesdonottouchthediode.1)Aftertheconnection,removesoldershowninrightfigure.CAUTIONUseof controlsoradjustmentsorperformanceof proce-duresotherthanthosespecifiedhereinmayresultinhazardo
9、usradiationexposure.ATTENTIONLutillisationdecommandes,r6glagesouproceduresautresqueceuxspecifiespeutentralnerunedangereuseexpositionauxradiations.ADVARSELUsynligIaserstAlingvedAbning,m%sikkerhedsafbrydereerudeaf funktion.UndgAudseXtelseforstr%ling.ThisCompactDiscplayerisclassifiedasaCLASS1LASERprodu
10、ct.TheCLASS1 LASERPRODUCTlabelis locatedontherearexterior.PICK-UPkSyP.C.B.r3RadioFans.CN 收音机爱 好者资料库NOTEONBEFORESTARTINGREPAIR1.ForceddischargeofelectrolyticcapacitorofpowersupplyblockWhenrepairis goingto be attemptedin thesetthatusesrelaycircuitin thepowersupplyblock,electricpotentialis keptchargeda
11、crosstheelectrolyticcapacitors(CIOl,102)eventhoughACpowercordisreoved.Ifrepairisattemptedinthiscondition,thesecondarydefectcanoccur.In orderto preventthesecondarytrouble,performthefollowingmeasuresbeforestartingrepairwork.DischargeprocedureIIIRemovetheACpowercord.Connecta dischargingresistorat an en
12、dof leadwirethathasclipsat bothends.Connecttheotherendof theleadwireto metalchassis.Contacttheotherendof thedischargingresistorto thepositive(+)side(+VH)of C 101.(Fortwoseconds)Contactthesameendof thedischargingresistoras steptothenegative(-) side(-VH)of C102in thesameway.(Fortwoseconds)Checkthatvol
13、tageacrossC101andC 102hasdecreasedIIIMAINC.B1 V or lessusinga multimeteror an oscilloscope.66Selecta dischargingresistorreferringto thefollowingtable.Fig-1Chargingvoltage(V)Discharging(Clol,102)Ratedpower(W)Partsnumberresistor(Q)25-48100387-AOO-247-09049-140220587-AOO-232-090Note:Thereferencenumbers
14、(C101,C102)of theelectrolyticcapacitorscanchangedependingon themodels.Besureto checkthereferencenumbersof thechargingcapacitorsonschematicdiagrambeforestartingthedischargingwork.2.CheckitemsbeforeexchangingtheMICROCOMPUTERBesureto checkthefollowingitemsbeforeexchangingtheMICROCOMPUTER.ExchangetheMIC
15、ROCOMPUTERafterconfirmingthattheMICROCOMPUTERis surelydefective.2-1.RegardingtheHOLDterminaloftheMICROCOMPUTERWhentheHOLDterminal(INPUT)of theMICROCOMPUTERis “H,theMICROCOMPUTERis judgedto be operatingcorrectly.Whenthisterminalis “L”,themainpowercannotbe turnedon.Therefore,be sureto checktheterminal
16、voltageoftheHOLDterminalbeforeexchange.WhentheMICROCOMPUTERis notdefective,theHOLDterminalcanalsogo“L”whenthePOWERAMPLIFIERhasanyabnormalitiesthattriggerstheabnormalitydetectioncircuitontheMAINC. B. thatsetstheHOLDterminalto “L”.GGoodornogoodjudgementoftheMICROCOMPUTERTurnontheACmainpower.Confirmtha
17、tthemainpoweris turnedonandtheHOLDterminalof theMICROCOMPUTERkeepsthe“Hlevelornot.WhentheHOLDterminalis “L”level,theabnormalitydetectioncircuitis judgedto be workingcorrectlyandtheMICROCOMPUTERis judgedto be good.(r-. . _._FRONTC.B;MAINC.BIiIn somemodels,it is PIN.Pi-Azl91 CCXJ602MICROCOMPUTERJ_oOVE
18、RLOADDETPOWERAMPPOWERAMPPOWERSUPPLYPINnumberis differentdependinguponmicroprocessor.- .- . .Fig-2-14RadioFans.CN 收音机爱 好者资料库In sucha case,checkalsoif thePOWERAMPLIFIERcircuitor powersupplycircuithasanyabnormalitiesor not.2-2.RegardingresetTherearecasesthatthemachinedoesnotworkcorrectlybecausetheMICRO
19、COMPUTERis notreseteventhoughtheACpowercordis re-inserted,or thesoftwarereset(pressingtheSTOPkey+ POWERkey)is performed.Whentheabovedescribedphenomenonoccurs,it canleadsto wrongjudgementas if theMICROCOMPUTERis defectiveandto exchangetheMICROCOMPUTER.In sucha case,performtheforced-resetbythefollowin
20、gprocedureandcheckgoodornogoodof theMICROCOMPUTER.RemovetheACpowercord.Fig-2-2Shortbothendsof theelectrolyticcapacitorCl13 thatis connectedto VDDof theMICROCOMPUTERwithtweezers.ConnecttheACpowercordagain.If theMICROCOMPUTERreturnsto thenormaloperation,theMICROCOMPUTERis good.Note:Thereferencenumbero
21、r MICROCOMPUTERpinnumberof transistor(Ql10)andelectrolyticcapacitor(C113)canchangedependingon themodels.Besureto checkthereferencenumbersonschematicdiagrambeforestartingthedischargingwork.2-3.Confirmationof solderingstateof MICROCOMPUTERChecksolderingstateof theMICROCOMPUTERin additionto theabovedes
22、cribedprocedures.Besureto exchangetheMICROCOMPUTERaftersurelyconfirmingthatthetroubleis notcausedbypoorsolderingbuttheMICROCOMPUTERitself.RadioFans.CN 收音机爱 好者资料库SPECIFICATIONSTuningrangeUsablesensitivity(lHF)AntennaterminalscMWTunersectionTuningrangeUsablesensitivityAntennaPoweroutputTotalharmonicdi
23、stortionInputsoutputsTrackformatFrequencyresponseSignal-to-noieeratioRecordingsystemHeads87.5MHzto108MHz13.2dBf75ohms(unbalanced)531kHzto1602kHz(9kHzstep)530kHzto1710kHz(1 O kHzstep)350uV/mLoopantennaFrontU:145W+145W(50Hz-20kHz,T.H.D.lessthan1%,6ohms)LH:170W+170W(lkHz,T. H.D.1O%,6 ohms)Rear(surround
24、)U:33W+33W(50Hz-20kHz,T.H.D,lessthanI%,8 ohms)LH:40W+ 40W(lkHz,T.H.D.10YO,8 ohms)CenterU:33W(50HZ-20kHz,T.H.D.lessthan1 Y.,8 ohms)LH:40W(1kHz,T.H.D.10%,8 ohms)U:0.17.(130W,1 kHz,6 ohms,DINAUDIO)LH:0.17.(110W,1 kHz,6 ohms,DINAUDIO/Front)VI DEO/AUX:210mV(adjustable)MD:21OmV(adjustable)MIC1,MIC2: 1.4mV
25、(10kohms)5.1 CHINPUT:FRONT(L,R):400mVREAR(L,R):400mVCENTER:400mVWOOFER:400mVLINEOUT:280mVSUPERWOOFER: IVSPEAKERS:acceptspeakersof6 ohmsormoreSURROUNDSPEAKERS:acceptspeakersof8 ohmsto16ohmsPHONES(stereojack):acceptsheadphonesof32ohmsormore4 tracks,2 channelsstereoCrO,tape:50Hz16000HzNormaltape:50Hz15
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