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5 Troubleshooting
62
Troubleshooting Index
Symptoms Cause Solution
No audio at outputs. No input audio. Test with a known good
input.
Bad cables. Replace the cables.
Destination is turned
down.
Check the connections
and the level of the mixer
or amp to which the
DEQ830 is connected.
Weak output signal. Input level weak. Increase level from source
into DEQ830.
Output level weak. Boost channel levels of
quiet program.
(Decide which is the case
by pressing the Bypass
button.)
Boost Master Level in
Utility mode.
Clip LED lights often. Input level too high. Reduce input level at
source.
Output level too high. Reduce gain of problem
bands within program.
(Decide which is the case
by pressing the Bypass
button.)
Reduce channel levels of
that program.
Reduce Master Level in
Utility mode.
Can’t select new program,
display keeps blinking.
Program Fast is set to
“Off.”
Press encoder to confirm
program selection, or
change Program Fast
setting in Utility mode.
Refer to page 48.
Can’t edit program, can’t
select new program.
DEQ830 is locked. Unlock DEQ830 in Lock
mode. Refer to page 50.
Numerical LED Display
keeps flashing “Lo.”
DEQ830 is locked. Unlock DEQ830 in Lock
mode. Refer to page 50.
Must de-select all bands in
order to edit a single band.
Release Edit Group
function set to Off.
Set Release Edit Group
function to On in Utility
mode.
Analog input is ignored Digital signal present at
ADAT Optical Input.
Change Force Analog
Input setting in Utility
mode.
Digital input is ignored Force Analog Input is set
to Analog in Utility mode.
Ditto.