Garmin GMA 350c Pilot's Manual page 22

Symptom(s)
"3D audio
left" message
heard in both
ears.
"3D audio
right" message
not heard
"3D audio
left" message
heard in both
ears, followed
by "3D audio
right" message
heard in both
ears
Symptom(s)
"3D audio
right" message
heard in both
ears. "3D
audio left" not
heard
190-01134-12 Rev. K
3D Audio Troubleshooting
Cause(s)
1) Mono headset in use
2) Stereo headset in use
with mono/stereo
switch set to 'mono'
3) Aircraft wiring has
left audio wired to
both left and right
channels of stereo
headset jack
1) Mono headset in use
2) Stereo headset in use
with mono/stereo
switch set to mono
3) Incorrect aircraft
wiring (left/right
shorted together)
Cause(s)
1) Incorrect aircraft
wiring (right channel
used for mono
instead of left or left/
right swapped)
Garmin GMA 350/350c Pilot's Guide
GMA 350/350c Audio Panel
Solution(s)
1) Use a stereo headset
2) Set mono/stereo switch on
headset to 'stereo'
3) If after checking solutions #1
and #2 see a service center as
soon as possible to inspect/
correct wiring. This wiring fault
can cause fail-safe audio not to
function.
1) Use a stereo headset
2) Set mono/stereo switch on
headset to 'stereo'
3) If after checking solutions #1
and #2 see a service center as
soon as possible to inspect/
correct wiring. This wiring fault
can cause fail-safe audio not to
function.
Solution(s)
1) See a service center as soon
as possible to inspect/correct
wiring. This wiring fault can
cause fail-safe audio not to
function.
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