Emotiva UPA-5 Stereo Amplifier User Manual

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Groundloopisolatorsareavailableforaudiolinesandvideodevices.Ifyouneedassistance,contactEmotiva.Althoughthisis

notalwaysanidealsolution,thegroundingdifferencesbetweencertainhomeentertainmentcomponentssometimesrequire

groundloopisolators.Thisistheexceptionratherthantherule.



OtherProbableCausesofNoise



• SpeakernoisemayalsobecausedbyinterferenceornoiseonyourACline.Makesuretherearenolargeappliances

sharingtheline,orhalogenlampsorlight‐dimmingTriacdevices.



• TryconnectingyoursystemtoanotherACsocketonaseparateline.



• Ifthehumisheardfromwithintheamplifier,andnotthroughthespeakers,thismayalsobecausedbyinterference

ontheACorDClines.Thepowertransformersmayturnthisinterferenceintoanaudiblenoise.Internalhumcanbe

madeworsebyashelforcabinetresonating,sotrymovingtheamplifiertoanothershelf.



• TrymovingyourcomponentsfurtherawayfromtheTV,especiallyifyounoticethescreenhaschangedcolorinthe

areaclosesttothecomponent.



• Ifyouhaveveryhighefficiencyspeakers,thesemaytendtorevealnoises,whichotherspeakersdonot.



OneormoreREDlightsontheFrontPanelareBlinking



YourUltraSeriesAmplifierisequippedwitha‘ProtectMode’tominimizethepossibilityofdamagetoeitheritselfor

speakers.Ifaproblemisdetected,thechannel(s)atriskwillshutdown,followingaredblinkingonthecorresponding

indicatorlight(s).

EachREDlightindicatesafaultconditionforthecorrespondingpowermodule.



Afaultconditionisoneormoreofthefollowing:



• ExcessiveOperatingTemperature

• ExcessiveCurrent(ShortCircuit)

• DContheOutputs



Anexcessivetemperaturefaultcanberesetbyallowingamplifiertocoolandcyclingpoweron/offbuttononthefrontpanel.

Excessivecurrent(shortcircuit)canberesetbyremovingthecauseoftheshortandcyclingpoweron/offbuttononthefront

panel.DCatoutputisapossiblefaultconditionthatisequipmentrelatedandrequirestechnicalassistance.Pleasecontact

EmotivaifyouhaverepeatedproblemscausingtheREDfrontpanellighttoflashthatareNOTthermalorshortcircuit

related.



ProblemswiththewholeA/VSystem

Ifyouarehavingmorecomplexproblemsinyouroverallhomeentertainmentsystem(notjustwiththeamplifier),please

contactEmotivaSupportforassistance.877‐EMO‐Tech(877‐366‐8324)



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Emotiva UPA-5 Stereo Amplifier User Manual