Rockford Fosgate 50.2, 50.1 manual Symptom, Diagnosis, Remedy, Speaker Output Low, or Distorted

Symptom	Diagnosis	Remedy		O
			TROUBLE-S
				H
				O
				T
Speaker Output Low	Input gain(s) for amplifier incorrectly set.	Readjust input gains of amplifier.		I
				N
				G
or Distorted
	Source unit output too low or source unit	Check system with known working source
	has no output.	and repair or replace original source as
		needed.
	Phase selection of amplifier incorrectly se-	Check speaker polarity and phase switch
	lected or speakers wired out of polarity from	position and correct as needed.
	the left to right channel.
	XCards are missing or not placed properly	Check crossover switches and XCard posi-
	in crossover slots and/or switches are not	tions and repair or replace as necessary.
	properly selected.
	Low battery voltage or large voltage drops	Check the alternator, battery, fuse or circuit
	to the amplifier under load.	breaker and power and ground wiring and
		repair as necessary.
Amplifier Noise	Voltage spike from output of preceding	Disconnect input signal to amplifier and
(Turn-on Pop)	component is entering amplifier through	turn amplifier on and off. If noise is elimi-
	input signal.	nated, connect REM lead of amplifier to
		source unit with a delay turn-on module.
	Voltage spike from remote turn-on lead is	Use different 12 volt source for REM lead of
	entering through REM input terminal.	amplifier (i.e., battery direct). If noise is
		eliminated, use relay to isolate amplifier
		from noise turn-on output.
No output from Pass-Thru out-	RCA Input from source unit is not connected	Check connections, substitute with known
put of amplifier.	or not functioning properly.	working source and cables and repair or
		replace as necessary.
	When using the BLT, Balanced Line Input	Check connections, substitute with known
	from BLT is not connected or not function-	working BLT and cables and repair or
	ing properly.	replace as necessary.
	Unbalanced/Balanced Line switch is not	Check switch position and correct as neces-
	selected for corresponding input.	sary.
	XCards are missing or not placed properly	Check crossover switches and XCard posi-
	in crossover slots.	tions and repair or replace as necessary.

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