Dual XR4120 Car Stereo System User Manual


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11
XR4120 OPERATION
Troubleshooting 
Problem Cause Action
Unit will not turn on 
(no power)
Yellowwirenotconnectedorincorrect
voltageRedwirenotconnectedor
incorrectvoltage
Checkconnectionsforproper
voltage(11~16VDC)
Blackwirenotconnected Checkconnectiontoground
Fuseblown Replacefuse
Unit has power 
(but no sound)
Speakerwiresnotconnected Checkconnectionsatspeakers
Oneormorespeakerwirestouching
eachotherortouchingchassisground
Insulateallbarespeakerwires
fromeachotherandchassis
ground
Unit blows fuses
Yelloworredwiretouchingchassis
ground
Checkforpinchedwire
Speakerwirestouchingchassisground Checkforpinchedwire
Incorrectfuserating Usefusewithcorrectrating
NO FILE appears 
on display
NoplayableMP3/WMAfilesfoundon
thedevice
Checkthedeviceforvalid
MP3/WMAfiles
NO SUPPORT appears 
on display
AninvalidID3tagversionispresent
Version1.0to2.0ID3tagsare
supported.
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