TROUBLE-S

 

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No Output on

Signal Input Switches not

Check

Signal

Input

 

 

Front, Rear or Sub

configured properly.

Switches and reconfigure

 

 

 

as necessary.

 

 

 

 

 

Channels

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XCard(s) missing or not

Check XCard position(s)

 

 

 

 

placed properly in cross-

and repair or replace as

 

 

 

 

over slot.

necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

Low Output on

Signal Input Switches do

Check

Signal

Input

 

 

Sub Channel

not configure Sub Chan-

Switches and reconfigure

 

 

nel for single RCA input.

as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amplifier Noise

Voltage spike from out-

Disconnect input signal to

 

 

(Turn-on Pop)

put of preceding compo-

amplifier and turn amplifier

 

 

nent is entering amplifier

on and off. If noise is elimi-

 

 

 

 

 

 

 

 

through input signal.

nated, connect REM lead of

 

 

 

 

 

amplifier to source unit with

 

 

 

 

 

a delay turn-on module.

 

 

 

 

 

 

 

 

 

 

 

Voltage spike from re-

Use a different 12 volt

 

 

 

 

mote turn-on lead is en-

source for REM lead of am-

 

 

 

 

tering through REM in-

plifier (i.e., battery direct). If

 

 

 

 

put terminal.

noise is eliminated, use a

 

 

 

 

 

relay to

isolate

amplifier

 

 

 

 

 

from noisy turn-on output.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 33 –

Page 36
Image 36
Rockford Fosgate 5.3x manual Speaker Output