B-52 ACT-1515X Instruction Manual - 6
6
CONNECTIONS / IMPORTANT INFORMATION
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COMMON CONNECTION FOR
THE ACT-1515X
BASIC TROUBLESHOOTING
1) POWER ON/OFF SWITCH DOES NOT LIGHT -
CheckyoursourceofACMainspowerbyplugginginsome-
thingyouknowisworkingintothatsameoutlet.Checkthe
firmnessoftheconnectionoftheACPowercordinboththe
wallandtheIECpanelmountsocket.UnplugtheACcord
andcheckthefuseforcontinuitywithamultimeterorohm-
eter.Iffuseisblown,replaceitwiththesametypeand
size,andthenplugACcordbackintothewalloutlet.Iffuse
blowsagain,orPoweronrockerswitchfailstolight,service
isrequired.
2) NO SOUND -Ispowerpresent?IstheSignalLEDlight-
ingup?Arethecablesfirmlyattachedandpluggedinto
thecorrectjacksateachend?Arethelevelcontrolsuphigh
enough?Ifthesignalsource(greenLED)doesnotlighttry
firstchangingsignalcablesandcheckthemixerforsignsof
signalattheoutput.Ifalltheaboveisnotinquestion,the
unitrequiresservice.
3) BAD OR PARTIALLY MISSING SOUND -Ifthebass
isweak,itislikelyoneorbothwoofersareblown.Ifthe
highsareverymuted,itislikelythecompressiondriveris
blown.Ifthemidrangeismuted,itislikelythetopwoofer
isblown.Ifthedistortiondoesnotseemtogetworsewith
increasinglevel,theamplifieralonemayneedservice.
4) INTERMITTANT SOUND -Itispossiblethatyouhave
abadcableorconnectorsocket.Itisalsopossiblethatthis
isadamagedspeakeroramplifier.
5) LOUD ANNOYING HUM -Youmayhaveaground
loop. Double check all connections and cables. A mis-
wired cable can significantly increase hum. If all else
fails and you can insure the amplifier chasis and metal
speaker parts will not be touched or closely approached
during use, try lifting the Earth ground with the rocker
switch(#8).
Toreducetheriskoffireorelectricalshock,donotexposethisunittorainorexcessmoisture.DonotoperateyourACT-1515X(F)inor
nearapoolorotherstandingwater.Intheeventthepoweredspeakercomesincontactwiththewater,anelectrocutionhazardmayoccur.
DonotbypassordefeatthegroundingorpolarizationmeansusedontheACT-1515X(F)amplifier.Makesureallbladesonthepolarized
groundedpowerplugarefullyinsertedintotheACmainspowerreceptacle.Ensurethepowercordisnotstretched,pinched,chafed,or
otherwisedamaged.Ensurethepowercordisroutedsafelyandsecuredtoavoidthepossibilityofsomeonetrippingoverit.