Dual Electronics BAK1500 - Manual (Page 9)

9
Problem Cause Action
Unit will not turn on
(no power LED indicator)
BAT+wirenotconnectedorincorrectvoltage
REMwirenotconnectedorincorrectvoltage Checkconnectionsforpropervoltage
(11~16VDC)
GND wire not connected Checkconnectiontoground
Fuse(s)blown Replacefuse(s)
Unit has power - LED is
green (but no sound)
Volume turned all the way down Increasevolumelevelatheadunit
Speakerdefectiveordamaged Check/replacespeaker
Input signal not connected Checkhighorlowlevelinputsfor
proper connection
Unit blows fuse(s) Incorrect fuse rating Usefuse(s)withcorrectrating
BAT+ wire touching chassis ground Checkforpinchedwire
Speakerdefectiveordamaged Check/replacespeaker
Engine noise Bad ground connection Makesureamplifierisgroundedto
clean bare metal
SignalgroundlooporRFI(radiofrequency
interference) Re-routeRCAcablesfromexisting
high current wiring
Distorted audio output Incorrect input signal type or
inputleveltoohigh Checkconnectionsandreduce/adjust
inputlevel
Low audio output Incorrect input signal type or
inputleveltoolow Checkconnectionsandincreaseor
adjustinputlevel
Weak bass Lowfrequencyoutputisoutofphase Adjust phase control as needed
Troubleshooting
OPERATION
Please keep your original sales receipt and be prepared to
providethisreceiptintheeventyourequireservice,asyour
original receipt is considered the best proof of purchase and
indicates the date you purchased your Dual product.
Dealer Name
Dealer Phone
Purchase Date
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Registration
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