Alesis ProLinear DSP, Reference Manual

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6
Troubleshooting
41
Symptoms Cause Solution
No audio or output too
low.
No input audio. Test with a known good
input. Increase input level
pot setting.
Bad cables. Replace the cables.
Source is turned down. Increase source level.
Distorted sound. Input level too high and is
saturating the input ADC.
Note: the red LCD display
may not be indicating
clipping for this
circumstance.
Turn input level control
down.
Low frequency gain too
high.
Reduce all LF parametric
gain, lower the input level
pot, reduce trim gain or
lower the input signal.
Clipping (as indicated by
the red LCD display)
Lower the input level
control, reduce Gain Trim
or lower the input signal.
“Err” on LCD display. Speaker malfunction Cycle power.
Call Technical Support.
Attempting to do things
too quickly on the front
panel or PC application.
Wait for speaker to re-sync
or cycle the power.
Turning off one speaker in
a group of speakers
Wait for speaker to re-sync
or change the program on
the affected speaker and
then go back to the
original program.
PC will not communicate
with speaker
Application set to different
Com port
Change port under
View/Options tab in
application
Speaker set to different
channel
Make sure speaker and
application channels agree