Troubleshooting; Troubleshooting Index - Alesis PEQ-450 Reference Manual

Troubleshooting Index

If you experience problems while operating your PEQ-450, please
use the following table to locate possible causes and solutions before
contacting Alesis Product Support for assistance.
Symptom
No audio from
outputs
Buzz from outputs
AC hum
PEQ-450 Reference Manual

Troubleshooting

Cause
No input audio
Bad cables
Destination is
turned down
Input or output
control is turned
down
Power is not
connected
Cables are crossing a
power cable
Bad cables
Problem with the
source
Ground loop
Solution
Test with a known
good input.
Replace the cables.
Check the
connections and
the level of the
mixer or amp that
the PEQ-450 is
connected to.
Turn them up
Go take a walk
Make sure that the
PEQ-450 and its
audio cables are
kept away from
power cables, and
wall warts.
Replace the cable
with a new, high-
quality cable.
Try bypassing the
PEQ-450 by
connecting the
input cables to the
output cables and
see if the problem
remains.
Use only balanced
connections in the
studio
Place all equipment
in the studio on a
common ground
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