Rockford Fosgate 360, 400, 1000 manual Symptom, Diagnosis, Remedy, Speaker Output, Low or Distorted

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Symptom	Diagnosis	Remedy
Speaker Output	Input gain signal for amplifier	Readjust input gains of amplifier.
Low or Distorted	is incorrectly set.
	Source unit output too low or	Check system with known work-
	source unit has no output.	ing source and repair or replace
		original source as needed.
	Low battery voltage or large	Check the alternator, battery,
	voltage drops to the amplifier	fuse, and power and ground
	under load.	wiring. Repair as necessary.
Amplifier Noise	Voltage spike from output of	Disconnect input signal to
(Turn-on Pop)	preceding component is en-	amplifier and turn amplifier
	tering amplifier through in-	on and off. If noise is elimi-
	put signal.	nated, connect REM lead of
		amplifier to source unit with
		a delay turn-on module.
	Voltage spike from remote	Use a different 12 volt source
	turn-on lead is entering	for REM lead of amplifier
	through REM input terminal.	(i.e., battery direct). If noise
		is eliminated, use a relay to
		isolate amplifier from noisy
		turn-on output.

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