JBL GTS100X Owner's Manual

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JBL GTS100X Owner's Manual Manual pdf 32 page image

n the100x isve;ween thee ande headspeaker-high-ote wireemoted +12V-isll ofgs; makeinputver) arens forion.• Incorrectly connected orshorted speaker wires; checkfor shorts in wiring.• Defective or disconnected audiocables; check for continuityand replace if necessary.• Incorrect gain adjustment;verify that the GTS100x gaincontrols are not turned com-pletely down. If they are, soundoutput level may be very lowand may give the impressionthat the system (or part of thesystem) is dead.• Defective head unit or signalprocessor; check each compo-nent for proper wiring andoperation.• Defective GTS100x; if there isaudio signal present at theinputs of the GTS100x and thereis no output, the GTS100x maybe defective.Alternator whine through theaudio system with the enginerunning• Ground loops; follow the wiringsuggestions in the sectioncalled “Solving NoiseProblems” (page 26). Also, ver-ify that the chassis groundingpoint you have chosen is trueground by checking for continu-ity between the chassis groundpoint and battery ground.