Emotiva UPA-5 Manual

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TroubleshootingGuide

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UltraSeriesamplifiersareexpertlydesignedandbuilttoprovideyearsoftrouble‐freeperformance.Mostproblemsthat

occurcanusuallybesolvedbycheckingyoursetupormakingsurethattheaudioandvideocomponentsconnectedtothe

amplifierareonandfullyoperational.

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NOTE:Beforeturningonyouramplifierforthefirsttime,besuretocheck:

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1.TheBalanced/Unbalancedselectorsforeachamplifierchannel(locatedonthebackpanel).Iftheselectiondoesnotmatch

theconnection,thechannelwillnotwork.Makesurethatyouareselectingthepropertypeofconnectionforthecablesyou

areusing.

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2.ThestatusandmeterLEDselectorsonthebackpanel.Iftheseareinthe‘off’position,thestatusandmeterLEDswillnot

light.

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Thefollowinginformationwillhelpyoudealwithothercommonsetupproblemsyoumayexperienceduringnormaluseof

yourunit.Ifproblemspersist,contactEmotivasupportforhelp.

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NoSound(fromoneormorespeakersconnectedtotheamplifier)

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• Speakercablesmayhavecomeundone.Turnoffyoursystemandcheckthecables,tightentheamplifierand

speakerbindingposts.

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• Damagedaudiocable.

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• Thepreamplifiervolumelevelislowforthechannelsconcerned.Recheckthepreamplifiercalibrationprocedure.

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• ApreamplifierMuteswitchmaybeon,anexternalprocessorlooporatapemonitorloopisengaged.

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• Checkthatyourpreamplifierorsourceisrunningthecorrectsurroundmode.Maybeitissetfor2‐channelstereo

whenyouwereexpecting5.1surroundsound.

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• Checkifanymissingchannelshavebeenturnedoffinapreamplifiersetupmenu.Forexample,thecenteramplifier

channelwillnotreceiveasignalifthepreamplifierhasbeensetto“Phantom”.

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• Checkmainpowerswitchtomakesurethatitisinonposition(1).

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• Aninternalfuseon theunitmayhaveblown.ContactEmotivaSupportforassistance.

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Theamplifiershutsdownoftenorthelinecircuitbreakertripsoften

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• Checkthatthepositiveandnegativespeakerwiresarenotshortedtogether.

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• Makesurethatnospeakersareshortedinternally.Ifyouhaveanohm‐meter,disconnectthespeakerwiresand

measuretheresistancebetweenthespeaker’spositiveandnegativeterminals.

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• Measureallspeakersandchecktheirimpedancespecifications.Ifnecessary,reviewthe“SeriesandParallel

Connections”sectioninthismanual.

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• Ifyouhaveconnectedspeakersinparallel,theoverallimpedancemaybetoolow.Itisrecommendedthatyou

rearrangethespeakersinseriestoincreasetheoverallimpedance,thustakingsomeloadofftheamplifier.

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• Makesuretheamplifierhasgoodventilationandisnotoverheating.Allowgoodairflowunderneathwherever

possible.Iftheamplifierisinaclosedrack,openuptherearpaneloruseaquietfanforimprovedventilation.

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