Rockford Fosgate 40X2 Symptom Diagnosis Remedy, Speaker Output, Low or Distorted, Amplifier Noise

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Symptom	Diagnosis	Remedy
Speaker Output	Input gain signal for	Readjust input gains of
Low or Distorted	amplifier is incorrectly	amplifier.
	set.
	Source unit output too	Check system with known
	low or source unit has	working source and repair
	no output.	or replace original source
		as needed.
	XCard is missing or not	Check XCard position and
	placed properly in cross-	repair or replace as neces-
	over slots.	sary.
	Low battery voltage or	Check the alternator, bat-
	large voltage drops to	tery, fuse, and power and
	the amplifier under load.	ground wiring. Repair as
		necessary.
Amplifier Noise	Voltage spike from out-	Disconnect input signal to
(Turn-on Pop)	put of preceding compo-	amplifier and turn ampli-
	nent is entering amplifier	fier on and off. If noise is
	through input signal.	eliminated, connect REM
		lead of amplifier to source
		unit with a delay turn-on
		module.
	Voltage spike from remote	Use a different 12 volt
	turn-on lead is entering	source for REM lead of
	through REM input termi-	amplifier. (i.e., battery di-
	nal.	rect) If noise is eliminated,
		use a relay to isolate am-
		plifier from noisy turn-on
		output.

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