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7. Troubleshooting
Situation
Action
No audio output
Check AC power- Is the power switch on? Check
input and output connections-are they reserved?
Are you sure you have an input signal?
Controls have no effect
Is the Limiter in/out switch in? Perhaps the ratio
control is set too low to produce an audible effect
or the input level is below threshold. Is the
threshold LED lighting up? If not, lower the
threshold setting or increase the gain. Do not
expect to hear any affect when the input level is
below threshold, since the unit is simply a linear
amplifier at those levels.
When using heavy compression, background
noise is noticeable during quiet section of the
program
Quiet program material is effectively made louder
while loud peaks are made quieter. When the
program source is thus raised in volume, its
noise floor is also raised in volume by a
propionate amount. This is not a defect in the
compressor/limiter, but an unavoidable side
effect of the gain altering process. If the noise
becomes a problem, the solutions are to either
decrease noise at the program source, or use
less compression.
Excessive hum or noise
Hum is often caused by a ‘ground loop’ between
components. Try using the suggested balanced
input and output hookup if the other pieces of
equipment used in conjunction with the unit have
balanced inputs and outputs. Make sure you are
sending a nominal 0dBV line level signal to the
unit.
Unshielded cables, improperly wired connections, and cable with broken strands (shorts, etc.) are the
most common problems. Make sure you use good quality cable with connectors soldered firmly on the
correct pin. When in doubt, get in touch with your dealer.
