Troubleshooting
Symptom
Distorted or Low
Output
Engine Noise
The test signal
from the Set-up
CD does not
appear on the
correct channel
Diagnosis
Output attenuators set to
minimum or incorrectly set.
Source unit output too low or
source unit has no output.
Noise is radiating into RCA
signal cable.
Bad component in the
signal chain.
Multiple grounds in the
audio system.
RCA out not properly
connected.
Remedy
Readjust output attenuators as necessary.
Refer to Installation section of this manual
for proper level adjustment.
Check system with known working source
and repair or replace original source as
needed.
Check connections and run the RCA
cables on a different route away from
sources of high current.
Check connections and bypass additional
components (crossovers and preamps)
between the source unit and the amplifier.
Connect one component at a time using
muting plugs (RCA signal shorted to
shield) at the input of each added compo-
nent to determine the culprit. Repair or
replace components as necessary.
Check ground connections and connect
amplifiers, signal processors, and other
components to a central location or try a
different grounding point on the chassis.
Check the RCA out from the RFQ5000
are going to the proper amp.
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