Ampeg_micro_vr_om 电路图 维修原理图.pdf

Owners Manual MICRO-VR Solid State Bass Guitar Amplifier 收音机爱好者资料库 Ra d i o Fa n s .CN Micro-VR Bass Guitar Amplifier TABLE OF CONTENTS Introduction.3 The.Front.Panel.4 The.Rear.Panel.5 System.Block.Diagram.6 Service.Information.6 Technical.Specifications. .8 NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15oftheFCCRules. Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates, uses,andcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterference toradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedto trytocorrecttheinterferencebyoneormoreofthefollowingmeasures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandthereceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp. CAUTION:ChangesormodificationstothisdevicenotexpresslyapprovedbyLOUDTechnologiesInc.couldvoidtheusersauthorityto operatetheequipmentunderFCCrules. IMPORTANTSAFETYINSTRUCTIONS READ,FOLLOW,HEED,ANDKEEPALLINSTRUCTIONSANDWARNINGS. DONOTOPERATENEARANYHEATSOURCEANDDONOTBLOCKANYVENTILATIONOPENINGSONTHISAPPARATUS.FOR PROPEROPERATION,THISUNITREQUIRES3”(75mm)OFWELLVENTILATEDSPACEAROUNDHEATSINKSANDOTHERAIR FLOWPROVISIONSINTHECABINET. DONOTUSETHISAPPARATUSNEARSPLASHING,FALLING,SPRAYING,ORSTANDINGLIQUIDS. CLEANONLYWITHLINT-FREEDRYCLOTHANDDONOTUSECLEANINGAGENTS. ONLYCONNECTPOWERCORDTOAPOLARIZED,SAFETYGROUNDEDOUTLETWIREDTOCURRENTELECTRICALCODESAND COMPATIBLEWITHVOLTAGE,POWER,ANDFREQUENCYREQUIREMENTSSTATEDONTHEREARPANELOFTHEAPPARATUS. WHERETHEMAINSPLUGORANAPPLIANCECOUPLERISUSEDASTHEDISCONNECTDEVICE,THEDISCONNECTDEVICE SHALLREMAINREADILYOPERABLE. PROTECTTHEPOWERCORDFROMDAMAGEDUETOBEINGWALKEDON,PINCHED,ORSTRAINED. UNPLUGTHEAPPARATUSDURINGLIGHTNINGSTORMSORWHENUNUSEDFORLONGPERIODSOFTIME. ONLYUSEATTACHMENTS,ACCESSORIES,STANDS,ORBRACKETSSPECIFIEDBYTHEMANUFACTURERFORSAFEOPERATION ANDTOAVOIDINJURY. WARNING:TOREDUCETHERISKOFELECTRICSHOCKORFIRE,DONOTEXPOSETHISUNITTORAINORMOISTURE. SERVICEMUSTBEPERFORMEDBYQUALIFIEDPERSONNEL. OURAMPLIFIERSARECAPABLEOFPRODUCINGHIGHSOUNDPRESSURELEVELS.CONTINUEDEXPOSURETOHIGHSOUND PRESSURELEVELSCANCAUSEPERMANENTHEARINGIMPAIRMENTORLOSS.USERCAUTIONISADVISEDANDEAR PROTECTIONISRECOMMENDEDIFUNITISOPERATEDATHIGHVOLUME. WARNING:THISUNITREQUIRESASAFETYGROUNDEDOUTLETWIREDTOCURRENTELECTRICCODESHAVINGTHE LINESUPPLYVOLTAGE,POWER,ANDFREQUENCYIDENTIFIEDONTHEREAROFTHEUNIT.THEOUTLETMUSTREMAIN ACCESSIBLETODISCONNECTTHEUNITIFAFAULTSHOULDARISEWHILEINUSE.THISUNITSHOULDBEUNPLUGGEDWHEN NOTINUSE. THISUNITISFORUSEINMODERATEAND/ORTROPICALCLIMATES. ONLYUSEATTACHMENTS,ACCESSORIES,CARTS,STANDS,ORBRACKETSSPECIFIEDBYTHEMANUFACTURER FORSAFEOPERATIONANDTOAVOIDINJURY.WHENACARTISUSED,USECAUTIONWHENMOVINGTHECART/ APPARATUSCOMBINATIONTOAVOIDINJURYFROMTIP-OVER. CAUTION RISKOFELECTRICSHOCK DONOTOPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.TOREDUCETHERISKOFELECTRICSHOCK,DO NOTREMOVECOVER.NOUSER-SERVICEABLEPARTSINSIDE. REFERSERVICINGTOQUALIFIEDSERVICEPERSONNEL. ITISNECESSARYFORTHEUSERTOREFERTOTHEINSTRUCTIONMANUAL “ESNECESARIOQUEELUSUARIOSEREFIERAALMANUALDEINSTRUCCIONES.” REFERREZ-VOUSAUMANUALDUTILISATION EXPLANATIONOFGRAPHICALSYMBOLS: EXPLICACIONDESIMBOLOSGRAFICOS: EXPLICATIONDESSYMBLESGRAPHIQUES: DANGEROUSVOLTAGE “VOLTAJEPELIGROSO” DANGERHAUTETENSION = PRECAUCION RIESGODECORRIENTAZO NOABRA PRECAUCION:PARAREDUCIRELRIESGODEINCENDIOSODESCARGAS ELECTRICAS,NOPERMITAQUEESTEAPARATOQUEDEEXPUESTOALA LLUVIAOLAHUMEDAD.PARADISMINUOIRELRIESGODECORRIENTAZO. NOABRALACUBIERTA.NOHAYPIEZASADENTROQUEELUSARIOPUEDO REPARARDEJETODOMANTENIMIENTOALOSTECHNICOSCALIFICADOS. ATTENTION RISQUEDELECTROCUTION NEPASOUVRIR ATTENTION: PROTGEZ CET APPAREIL DE LA PLUIE ET DE LHUMIDIT AFINDVITERTOUTRISQUEDINCENDIEOUDLECTROCUTION.POUR REDUIREDELECTROCUTIONNEPASENLEVERLECOUVERCLE.AUCUNE PIECE INTERNE NEST REPRABLE PAR LUTILISATEUR. POUR TOUTE REPARATION,SADRESSERAUNTECHNICIENQUALIFIE. PORTABLE CART WARNING 收音机爱好者资料库 Ra d i o Fa n s .CN Micro-VR Bass Guitar Amplifier Introduction Congratulations!.You.are.now.the.proud.owner.of.an.Ampeg.Micro-VR.bass.guitar.amplifier. This.no-compromise.amplifier.packs.200.watts.of.solid-state.MOS-FET.fury,.a.switching.power. supply.and.the.classical.good.looks.and.features.of.our.renowned.SVT.Series.amplifier.head. The.Micro-VRpanion.to.the.SVT.210AV.cabinet,.available. separately. The.switching.power.supply.keeps.the.weight.low,.without.sacrificing.power.output.or.our. legendary.sound.quality. Like.all.Ampeg.products,.your.Micro-VR.amplifier.is.designed.by.musicians.and.built.using.only. ponents.Each.amplifier.is.tested.to.confirm.that.it.meets.our.specifications,. and.we.believe.that.this.amplifier.is.the.absolute.best.that.it.can.be. In.order.to.get.the.most.out.of.your.new.amplifier,.please.read.this.manual.before.you.begin. playing. And.thank you.for.choosing.Ampeg. Here.are.some.of.the.features.packed.into.your.new.Amplifier: .Detailed.1970s-era.SVT.appearance .Designed.as.a.stack.with.the.SVT.210AV.cabinet.(available.separately) .Single.channel,.entirely.solid-state.design .Selectable.15.dB.input.pad .Gain.control .Bass,.Mid,.and.Treble.controls .Volume.control .Selectable.Limiter.and.LED .Peak.LED .Auxiliary.input .Headphone.output .Illuminated.power.switch .Effects.loop.with.separate.send.and.return.jacks .Balanced.XLR.output .Lightweight.switching.power.supply .Voltage.selector.switch .MOS-FET.power.amplifier.rated.at.200.watts.rms. into.4.ohms .Fan.cooled .Much.smaller.than.Stonehenge Micro-VR Stonehenge Micro-VR and SVT 210AV Cabinet 收音机爱好者资料库 Ra d i o Fa n s .CN Micro-VR Bass Guitar Amplifier The Front Panel 1. INPUT: The.signal.output.from.an.instru- ment.(active.or.passive).may.be.con- nected.to.this.1/4.input.by.means.of.a. shielded.instrument.cable. 2. 15 dB PAD:.Press.this.switch.in.to. reduce.the.input.signal.by.15.dB.and. compensate.for.higher.output.sources. This.attenuation.is.suited.for.use.with. basses.that.have.active.electronics.or. high-output.pickups.Use.this.pad.if.you. notice.the.peak.LEDes.on.regu- larly.It.will.reduce.the.chance.of.over- driving.the.preamplifier.stage,.and.allow. more.usable.range.and.fine.adjustment. of.the.gain.control. 3. PEAK LED:.This.red.warning.LED.may. come.on.if:.the.input.signal.is.too.high,. the.gain.control.is.set.too.high,.or.there. is.too.much.boost.from.the.bass,.mid- range.and.treble.controls.Ies.on. regularly,.even.when.these.controls.are. low,.try.engaging.the.15.dB.pad. 4. GAIN:.This.varies.the.amount.of.signal. driving.the.preamplifier.If.a.small.clock- wise.rotation.from.minimum.leads.to. overloading.and.the.peak.LED.coming. on,.try.engaging.the.15.dB.pad.This. will.give.more.usable.range.with.the.gain. control. 5. BASS:.Use.this.to.adjust.the.low.fre- quency.level.of.the.amplifier.This.pro- vides.up.to.14.dB.of.boost,.or.12.dB.of. cut.at.40.Hz.The.low.frequency.output. is.flat.at.the.center.position. 6. MIDRANGE:.Use.this.to.adjust.the.mid- range.frequency.level.of.the.amplifier. This.provides.up.to.5.dB.of.boost,.or. 13.dB.of.cut.at.500.Hz.The.midrange. frequency.output.is.flat.at.the.center. position.Rotate.the.control.counter. clockwise.for.a.“contoured”.sound. (more.distant,.less.midrange.output).or. clockwise.for.a.sound.which.really.cuts. through. 7. TREBLE:.Use.this.to.adjust.the.high.fre- quency.level.of.the.amplifier.This.pro- vides.up.to.19.dB.of.boost,.or.25.dB.of. cut.at.8.kHz.The.high.frequency.output. is.flat.at.the.center.position. 8. VOLUME:.Use.this.to.control.the.overall. output.level.It.affects.the.speaker.out- puts.17,.and.headphones.output.12. Use.it.wisely,.and.turn.it.down.when. making.connections,.putting.on.head- phones,.or.trying.something.new. 9. LIMITER SWITCH:.Press.this.switch.in. to.add.the.limiter.circuit.If.the.signals. driving.the.amplifier.start.to.peak,.the. limiter.will.automatically.reduce.the. signals.to.prevent.clipping,.and.the.LED. 10.will.flash.The.limiter.will.help.keep. the.amplifiers.output.“clean”.up.to.high. output.levels.and.avoid.potentially.dam- aging.distortion. 1 14151617181920 2345678910111213 Micro-VR Bass Guitar Amplifier 10. LIMIT LED:.This.LED.illuminates.when. the.limiter.circuit.is.activated,.indicating. that.the.amplifier.is.nearing.full.output. and.the.limiter.is.keeping.peak.signals. from.clipping.the.output. .If.you.notice.that.the.LED.is.turning.on. regularly,.reduce.the.volume.or.the.EQ. levels.to.prevent.damage.to.your.speak- ers. 11. AUDIO IN:.The.audio.output.from.line- level.sources.such.as.an.iPod,.MP3,. or.CD.player,.can.connect.to.this.1/8. TRS.stereo.input.The.incoming.audio.is. mixed.with.the.preamp.signals,.so.you. can.play.along.to.a.practice.track,.as. you.listen.with.headphones.(The.audio. coming.in.here.only.plays.in.the.head- phones,.and.appears.nowhere.else.) 12. PHONES:.Use.this.1/8.TRS.stereo. output.to.connect.your.headphones. The.output.here.is.a.mix.of.the.line-level. signals.reaching.the.amplifier,.and.any. incoming.audio.from.the.audio.in.jack. 11. .If.you.just.want.to.listen.and.practice. through.headphones,.disconnect.the. speaker-level.outputs.17.from.the. speaker.cabinet.(This.is.a.solid-state. amplifier,.so.there.is.no.harm.in.playing. without.speakers.) .Before.putting.on.headphones,.make. sure.the.volume.control.8.is.turned. down,.and.(if.connected).any.external. audio.source.has.its.level.turned.down. This.will.reduce.the.chance.of.hearing. damage.due.to.loud.volumes. 13. POWER SWITCH:.Use.this.illuminated. switch.to.turn.the.overall.system.power. on.or.off.Press.the.top.of.the.switch.to. turn.on.the.power,.and.press.the.bottom. to.turn.it.off. Micro-VR Bass Guitar Amplifier The Rear Panel 14. IEC POWER INPUT CONNECTOR:.This. is.where.you.connect.the.supplied.AC. power.cord. .Before.plugging.in.the.power. cord,.make.sure.that.the.voltage. selector.switch.15.is.set.to.the.same. voltage.as.your.local.AC.mains. 15. VOLTAGE SELECTOR SWITCH:. Make.sure.the.switch.is.in.the. correct.position.for.your.local.AC. mains.voltage.before.you.plug.in.the.AC. power.cord.Use.a.small.flat.screwdriver. to.slide.the.switch.if.required. 16. VENTILATION:.Make.sure.that.the.ven- tilation.openings.are.not.obscured.in.any. way.This.will.allow.the.flow.of.cooling. air.to.the.power.amplifiers.heatsinks. 17. SPEAKER OUTPUTS:.These.1/4.TS. output.jacks.supply.speaker-level.power. to.the.speaker.cabinet.The.rated.power. output.is.200.watts.rms.into.4.ohms. .The.two.identical.outputs.are.wired.in. parallel,.and.you.can.use.either.one,.or. use.both.Make.sure.the.total.speaker. impedance.load.is.4.ohms.or.greater. .For.example,.you.could.connect: .Two.16.ohm.speakers.(an.8.ohm.load), .Two.8.ohm.speakers.(a.4.ohm.load) .or.one.4.ohm.speaker. .Use.speaker.cables.with.1/4.TS. ends.to.make.the.connections. Do.not.use.instrument.cables.as.these. may.overheat. 18. EFFECTS LOOP RETURN JACK:.Use. this.1/4.TS.unbalanced.input.to.return. the.processed.line-level.output.of.an. external.effects.processor.(for.example). The.processor.could.be.fed.by.signals. from.the.effects.loop.send.19. 19. EFFECTS LOOP SEND JACK:.Use.this. 1/4.TS.unbalanced.output.to.send.a. line-level.output.to.an.external.effects. processor.(for.example).The.output.here. is.affected.by.all.controls.except.the.vol- ume.8.and.the.limiter.switch.9. .Use.the.loop.return.jack.18.to.feed.the. returned.processed.signals.back.into.the. power.amplifier. 20. XLR LINE OUT JACK:.Typically,.you. would.connect.this.balanced.output.to. the.balanced.input.of.an.external.mixer,. or.a.recorder.In.this.way,.you.do.not. have.to.mic.the.speaker.cabinet.in.order. to.add.it.to.the.main.mix,.or.to.record. The.output.is.not.affected.by.the.volume. control.8. .This.output.can.connect.to.external. power.amplifiers,.or.powered.loudspeak- ers,.as.long.as.they.have.their.own.input. controls.to.adjust.the.volume.level. .Balanced.connections.allow.long.cable. runs.to.be.used,.as.hum.and.noise. pickup.in.the.line.is.minimized. 1 14151617181920 2345678910111213 Micro-VR Bass Guitar Amplifier System Block Diagram Service Information If.you.are.having.a.problem.with.your.Micro-VR,.you.can.go.to.our.website.(). and.click.on.Support.for.service.information,.or.call.1-800-898-3211.during.business.hours. (7.am.to.5.pm.PST,.Monday-Friday).If.you.are.outside.of.the.U.S.,.contact.your.local.distribu- tor.for.technical.support.and.service. 15 dB PAD PHONES OUTPUT POWER AMPLIFIER LEFT RIGHT VOLUME SPEAKER OUTPUTS PREAMPLIFIER PEAK DETECTOR LIMITER LIMIT LED RETURN SEND EFFECTS LOOP XLR BALANCED LINE OUTPUT BASSMIDRANGETREBLE INPUT GAIN TONE CONTROLSTONE CONTROLS AUDIO INPUT (STEREO) LEFT RIGHT PEAK LED PEAK LED Correct disposal of this product: Thissymbolindicatesthatthisproductshouldnotbedisposedofwithyourhouseholdwaste, accordingtotheWEEEdirective(2002/96/EC)andyournationallaw.Thisproductshouldbehandedovertoanauthorized collectionsiteforrecyclingwasteelectricalandelectronicequipment(EEE).Improperhandlingofthistypeofwastecouldhave apossiblenegativeimpactontheenvironmentandhumanhealthduetopotentiallyhazardoussubstancesthataregenerally associatedwithEEE.Atthesametime,yourcooperationinthecorrectdisposalofthisproductwillcontributetotheeffective usageofnaturalresources.Formoreinformationaboutwhereyoucandropoffyourwasteequipmentforrecycling,pleasecontact yourlocalcityoffice,wasteauthority,oryourhouseholdwastedisposalservice. Micro-VR Bass Guitar Amplifier DeclarationOfConformity Manufacturer:LOUDTechnologiesInc. 16220Wood-RedRd.NE Woodinville,WA98072,USA ProductName:AmpegMicro-VR ProductType:AudioAmplifier ComplieswithStandards: LVD:92/31/EEC,93/68/EEC,&73/23/EWG Safety:EN60065 EMC:EN55013,EN55020,EN55022,EN55103,EN61000-3-2, &EN61000-3-3 TheofficialDeclarationofConformityforthisproductiskeptonfileat: LOUDTechnologiesInc.,16220Wood-RedRoadNE,Woodinville,WA98072Tel:1-866-858-5832 MICRO-VR TECHNICAL SPECIFICATIONS Output.Power.Rating.150.watts.rms.8.ohms,.5%.THD. .200.watts.rms.4.ohms,.5%.THD Signal.to.Noise.Ratio.72.dB.(20.Hz20.kHz,.unweighted) Maximum.Gain.62.dB,.tone.controls.centered. Tone.Controls.Bass:. .+14/12.dB.40.Hz. .Midrange:.+5/13.dB.500.Hz. .Treble:.+19/25.dB.8.kHz Power.Requirements.100120.VAC,.5060.Hz,.150.W. .220240