JBL-225W大功率低音炮电路图

Balboa™SeriesSUB10PoweredSubwooferServiceManualJBLConsumerProducts250CrosswaysParkDr.Woodbury,NewYork11797Rev010/2006-CONTENTS-BASICSPECIFICATIONS…………….……..…………..1PACKING……..………………….….….…………..……...2DETAILEDSPECIFICATIONS……….……..…………..3CONNECTIONS………………………...……..…...…..…5OPERATION……..………………….……...…….….…...7TESTSET-UPANDPROCEDURE….…………………..8EXPLODEDVIEW/PARTSLIST…………………………9AMPLIFIERBLOCKDIAGRAM…………………………10DETAILEDTROUBLESHOOTING……………………..12ELECTRICALPARTSLIST..……….……….……….…13P.C.B.DRAWINGS……………………………………….17IC/TRANSISTORPINOUTS..……..….…….….….….….23SCHEMATICS……………………….……………………24BALBOASUB10SPECIFICATIONSAmplifierPower(RMS):100WattsPeakDynamicPower*:225WattsDriver:10(254mm)Inputs:LineLevelandLFECrossoverFrequency:Variablefrom50Hzto150Hz,24dBperoctaveFrequencyResponse:30Hz–150HzDimensions(HxWxD):19-3/4x14-1/16x14-3/4(502mmx357mmx375mm)Weight:35lb/16kgJBLcontinuallystrivestoupdateandimproveexistingproducts,aswellascreatenewones.ThespecificationsanddetailsinthisandrelatedJBLpublicationsarethereforesubjecttochangewithoutnotice.*ThePeakDynamicPowerismeasuredbyrecordingthehighestcenter-to-peakvoltagemeasuredacrosstheoutputofaresistiveloadequaltominimumimpedanceofthetransducer,usinga50Hzsinewaveburst,3cycleson,17cyclesoff.BALBOAseriesSUB101BALBOAseriesSUB102BalboaSub10100WPoweredSub/PlateAmpLINEVOLTAGEYes/NoHi/LoLineUnitNotesUS120VAC/60HzYes108-132VrmsNormalOperationEU230VAC/50-60HzYes207-254VrmsNormalOperationNormaloperation,MOMSrequiredParameterSpecificationUnitQATestLimitsConditionsNotesAmpSectionType(120VModel)ABABN/A120VSystemisClassABType(230VModel)GHN/A230VSystemisClassGLoadImpedance(speaker)4OhmsN/ANominalSystemaverageimpedance8.2OhmsReferenceMeasuredwithAPusingtheratiomethod,sweepingwithanext.amp10to500HzAverageontheoperatingBWfrom10to500HzRatedOutputPower120V100Watts95@NominalinputvoltageRatedOutputPower230V105Watts100@NominalinputvoltageAvgeragevalue-RMSDynamicpower103WattsReference@Nominalinputvoltage3/2050HzBurstunitdriven6dBabovethesensitivitytodriveitintomaxpower,measuredvalueistheaverageofthe4firstconsecutivepeaksDynamicpowerHP134WattsReference@NominalinputvoltageHighestRMSofthefirst4consecutivepeaksTHD@RatedPower0.5%122KfilterTHD@1Watt0.1%0.322KfilterDCOffset10mV-DC50@SpeakerOutputDampingfactor150DF100Measuredatamplifierboardspeakeroutterminals,Outputpower90WattsTHD0.1%InputSensitivityInputFrequency50Hz50NominalFreq.LineInput(L&R)15mVrms±2dBTo1WattSingleinputdriven1inputdrivenLFEInput9.5mVrms±2dBTo1WattLFEinputdrivenonlySystemGain-LandRinputs42.27dB±2dBGain=130SingleinputdrivenLorRSignaltoNoiseSNR-A-Weighted90dBA85ToRatedpowerA-WeightingfilterSNR-unweighted85dBr80ToRatedpower22KHzfilterSNR@1W-unweighted65dBr60To1Watt22KHzfilterResidualNoiseFloor1mVrms(max)1.5Volume@max,w/A/PSweptBandpassMeasurement(Linefreq.+harmonics)InputImpedanceLineinputL&R,LFE10KohmsN/ANominalovertheaudioBWReferenceonlyFiltersLowPass(fixedorvariable)Variable--±2dB2ndordervariable+2ndorderfix,Range50-110HzSubsonicfilter(HPF)Fixed±2dBFriendcircuitFixed±2dBLimiter(yes/no)YES--N/ATHDatMax.OutputPowerN/A--N/AFeaturesLFEInputYESFunctionalBWLimitedto500Hz,PhaseSwitch(yes/no)YES--FunctionalVolumepotTaper(lin/log)LOG--FunctionalLPVariableCrossovercontroYESFunctionalRange50-110HzATOYESFunctionalfsInputConfigurationLineIn(L,R)L,R--FunctionalRCAinputs:RED-WHT,L,RSummedtoMonoLinelevelinLFELFEFunctionalSingleconnectorSignalSensing(ATO)Auto-Turn-On(yes/no)YES--FunctionalATOInputFrequency50HzFunctionalATOLevelLineLevelin(L,R1.5mVFunctional2mV@50HzintoLineInputw/1ch.drivenBALBOAseriesSUB103ParameterSpecificationUnitQATestLimitsConditionsNotesATOTurn-ontime1SecFunctionalAmpconnectedandACon,theninputsignalappliedAutoMute/Turn-OFFTime10minutesFunctionalTbeforemuting,aftersignalisremovedAutoturnoftime(T)mustbe5T15PoweronDelaytime3sec.FunctionalACPowerAppliedTransients/PopsATOTransient5mV-peak10@SpeakerOutputsTurn-onTransient50mV-peak100@SpeakerOutputsACLinecycledfromOFFtoONTurn-offTransient50mV-peak100@SpeakerOut[e-mail],nosignalapplied(GreenLED)MaximumallowableinputpowerundernominalInputvoltageandfrequency,HOTorCOLDoperation.PowerCons/Amps.@ratedpower120VModel192/1.89Watts/Amps208/2.00@120V-60Hz(Nom.linevoltage)100Watts@4OhmsnominallinevoltagePowerCons/Amps.@ratedpower230VModel208/1.1Watts/Amps210/1.2@230V-50Hz(Nom.linevoltage)100Watts@4OhmsnominallinevoltageProtectionShortCircuitProtectionYES--FunctionalDirectshortatoutputThermalProtection65deg.C--Functional@1/8maxunclippedPowerTemperatureriseshouldnotexceed35KriseDCOffsetProtectionYES--FunctionalDCpresentatSpeakerOutleadsRelayorcrowbar(fordriver/fireprotection)LineFuseRating120VAC2.5AmpsType-TorSloBloExternalfusewithUL/SEMKOratedholder230VAC1.25AmpsType-TorSloBloExternalfusewithUL/SEMKOratedholderBALBOAseriesSUB104CONTROLSANDCONNECTIONSRearPanel¶¡™£∞¢FUSET2.5AL250VTYPEAC~120V60HZ200WattsAHarmanInternational®Company§0Subwoofer-LevelControl1CrossoverAdjustment2PhaseSwitch3LFEInput4Line-LevelInputs5PowerIndicatorLED