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Troubleshooting - Chapter 8
Q20 Reference Manual 115
CHAPTER 8
TROUBLESHOOTING
Troubleshooting Index
If you are experience problems while operating the Q20, please use the following
table to locate possible causes and solutions before contacting Alesis customer
service for assistance.
Symptom Cause Solution
The display does not light
when the ON/OFF switch
is turned on.
No power. Check that the power
cable is plugged in
properly.
Display is blank. Display contrast is set
either too high or low.
Adjust the display
contrast. Press [GLOBAL],
turn [VALUE/ENTER].
No audio is heard. The digital input is
selected.
Press [GLOBAL], press [PAGE
>] four ti mes, then turn
[V ALUE/ENTER] knob
count e rcl o ckwi se.
Bypass is on with no
direct routings set.
Select another program
with routings.
Bypass is on with Global
Direct Signal Mute On.
Go to GLOBAL page 9 and
set it to OFF.
Bypass is on, with Direct
Level From Input set to
NONE.
Go to MIX and set Direct
Level to 100% .
Program being edited has
no input or output
routings.
Go to ROUTING page 3
(Delete Route) and check
the existence of routings
for each block and the
L/R OUT by rotating the
[VALUE] control to see all
inputs to that block.
Effect output level is low
on a single Program.
Master Effects Level is
below 100%.
Press MIX and raise the
level.
Clicks are heard in the
audio using digital I/O.
Digital clock conflict. Provide a master 48 kHz
clock or repatch the
system. Set the receiving
unitÕs clock to external.
ADAT clock set
improperly.
Hold SET LOCATE and
press DIGITAL IN until
the display says "DIG".
Distortion (red LEDs flash
before meter is full).
Internal DSP is clipping. Lower the LEVEL of any
rate feeding a block that
is overloading.