Ampeg_micro_vr_om 电路图 维修原理图.pdf

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1、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:Thisequipmenthasbeentestedandfoundt

2、ocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15oftheFCCRules. Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates, uses,andcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,ma

3、ycauseharmfulinterference toradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedto trytocorrecttheinterference

4、byoneormoreofthefollowingmeasures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandthereceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp. CAUTION:Changesormodifi

5、cationstothisdevicenotexpresslyapprovedbyLOUDTechnologiesInc.couldvoidtheusersauthorityto operatetheequipmentunderFCCrules. IMPORTANTSAFETYINSTRUCTIONS READ,FOLLOW,HEED,ANDKEEPALLINSTRUCTIONSANDWARNINGS. DONOTOPERATENEARANYHEATSOURCEANDDONOTBLOCKANYVENTILATIONOPENINGSONTHISAPPARATUS.FOR PROPEROPERAT

6、ION,THISUNITREQUIRES3”(75mm)OFWELLVENTILATEDSPACEAROUNDHEATSINKSANDOTHERAIR FLOWPROVISIONSINTHECABINET. DONOTUSETHISAPPARATUSNEARSPLASHING,FALLING,SPRAYING,ORSTANDINGLIQUIDS. CLEANONLYWITHLINT-FREEDRYCLOTHANDDONOTUSECLEANINGAGENTS. ONLYCONNECTPOWERCORDTOAPOLARIZED,SAFETYGROUNDEDOUTLETWIREDTOCURRENTE

7、LECTRICALCODESAND COMPATIBLEWITHVOLTAGE,POWER,ANDFREQUENCYREQUIREMENTSSTATEDONTHEREARPANELOFTHEAPPARATUS. WHERETHEMAINSPLUGORANAPPLIANCECOUPLERISUSEDASTHEDISCONNECTDEVICE,THEDISCONNECTDEVICE SHALLREMAINREADILYOPERABLE. PROTECTTHEPOWERCORDFROMDAMAGEDUETOBEINGWALKEDON,PINCHED,ORSTRAINED. UNPLUGTHEAPPA

8、RATUSDURINGLIGHTNINGSTORMSORWHENUNUSEDFORLONGPERIODSOFTIME. ONLYUSEATTACHMENTS,ACCESSORIES,STANDS,ORBRACKETSSPECIFIEDBYTHEMANUFACTURERFORSAFEOPERATION ANDTOAVOIDINJURY. WARNING:TOREDUCETHERISKOFELECTRICSHOCKORFIRE,DONOTEXPOSETHISUNITTORAINORMOISTURE. SERVICEMUSTBEPERFORMEDBYQUALIFIEDPERSONNEL. OURAM

9、PLIFIERSARECAPABLEOFPRODUCINGHIGHSOUNDPRESSURELEVELS.CONTINUEDEXPOSURETOHIGHSOUND PRESSURELEVELSCANCAUSEPERMANENTHEARINGIMPAIRMENTORLOSS.USERCAUTIONISADVISEDANDEAR PROTECTIONISRECOMMENDEDIFUNITISOPERATEDATHIGHVOLUME. WARNING:THISUNITREQUIRESASAFETYGROUNDEDOUTLETWIREDTOCURRENTELECTRICCODESHAVINGTHE L

10、INESUPPLYVOLTAGE,POWER,ANDFREQUENCYIDENTIFIEDONTHEREAROFTHEUNIT.THEOUTLETMUSTREMAIN ACCESSIBLETODISCONNECTTHEUNITIFAFAULTSHOULDARISEWHILEINUSE.THISUNITSHOULDBEUNPLUGGEDWHEN NOTINUSE. THISUNITISFORUSEINMODERATEAND/ORTROPICALCLIMATES. ONLYUSEATTACHMENTS,ACCESSORIES,CARTS,STANDS,ORBRACKETSSPECIFIEDBYTH

11、EMANUFACTURER 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.TOREDUCETHERISKOFEL

12、ECTRICSHOCK,DO NOTREMOVECOVER.NOUSER-SERVICEABLEPARTSINSIDE. REFERSERVICINGTOQUALIFIEDSERVICEPERSONNEL. ITISNECESSARYFORTHEUSERTOREFERTOTHEINSTRUCTIONMANUAL “ESNECESARIOQUEELUSUARIOSEREFIERAALMANUALDEINSTRUCCIONES.” REFERREZ-VOUSAUMANUALDUTILISATION EXPLANATIONOFGRAPHICALSYMBOLS: EXPLICACIONDESIMBOL

13、OSGRAFICOS: EXPLICATIONDESSYMBLESGRAPHIQUES: DANGEROUSVOLTAGE “VOLTAJEPELIGROSO” DANGERHAUTETENSION = PRECAUCION RIESGODECORRIENTAZO NOABRA PRECAUCION:PARAREDUCIRELRIESGODEINCENDIOSODESCARGAS ELECTRICAS,NOPERMITAQUEESTEAPARATOQUEDEEXPUESTOALA LLUVIAOLAHUMEDAD.PARADISMINUOIRELRIESGODECORRIENTAZO. NOA

14、BRALACUBIERTA.NOHAYPIEZASADENTROQUEELUSARIOPUEDO REPARARDEJETODOMANTENIMIENTOALOSTECHNICOSCALIFICADOS. ATTENTION RISQUEDELECTROCUTION NEPASOUVRIR ATTENTION: PROTGEZ CET APPAREIL DE LA PLUIE ET DE LHUMIDIT AFINDVITERTOUTRISQUEDINCENDIEOUDLECTROCUTION.POUR REDUIREDELECTROCUTIONNEPASENLEVERLECOUVERCLE.

15、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-

16、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,.withou

17、t.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.c

18、an.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.

19、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 .Bal

20、anced.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 Fro

21、nt 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.f

22、or.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.L

23、ED.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.prea

24、mplifier.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,.o

25、r.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.

26、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.

27、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.sw

28、itch.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-

29、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

30、.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

31、.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.ampl

32、ifier,.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.headpho

33、nes,.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.

34、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.t

35、o.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- ti

36、lation.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

37、.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.t

38、o.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.1

39、9. 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.sig

40、nals.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.aff

41、ected.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

42、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-

43、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 INPU

44、T 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 c

45、ollectionsiteforrecyclingwasteelectricalandelectronicequipment(EEE).Improperhandlingofthistypeofwastecouldhave apossiblenegativeimpactontheenvironmentandhumanhealthduetopotentiallyhazardoussubstancesthataregenerally associatedwithEEE.Atthesametime,yourcooperationinthecorrectdisposalofthisproductwill

46、contributetotheeffective usageofnaturalresources.Formoreinformationaboutwhereyoucandropoffyourwasteequipmentforrecycling,pleasecontact yourlocalcityoffice,wasteauthority,oryourhouseholdwastedisposalservice. Micro-VR Bass Guitar Amplifier DeclarationOfConformity Manufacturer:LOUDTechnologiesInc. 1622

47、0Wood-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: LOUDTechn

48、ologiesInc.,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