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Multi Channel Amplifiers
Troubleshooting Guide
Problem
Causes and solutions
power indicator is not lit
A. Check +12 volt wire fuse blown and replace
if needed
B. Check remote turn on +12V and GND
connections ensure the ground is secured to
clean metal on the vehicle chassis.
C. source unit not functioning properly
power indicator is lit /
There is no sound
A.
inputs are not properly connected or loose.
Check and ensure connections are tight. both the
RCA inputs and the source unit output.
B. Incorrect amplifier Gain control setting –
Check to see if the level is at minimum
protection light is on
There could be a possible short in the speaker
connections. Check for proper connection and
ensure there is no bare or uninsulated wire
exposed.
use a volt /ohm meter to check for possible
shorts in the speaker wiring.
Check the impedance of speakers . if they are
too low this may cause the amplifier protection
light to come on.
battery is under voltage, check and charge
battery if necessary.
sound is distorted
A. Amplifier gain control is set too high
b.
Amplifier bass control knob is set too high
C. Gain control is set too high on source unit