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190-01134-12 Rev. D
Garmin GMA 350 Pilot’s Guide
23
GMA 350 Audio Panel
3D Audio Troubleshooting
Symptom(s) Cause(s) Solution(s)
“3D audio
right” message
heard in both
ears. “3D
audio left” not
heard
1)
Incorrect aircraft
wiring (right channel
used for mono
instead of left or left/
right swapped)
1) See a service center as soon
as possible to inspect/correct
wiring. This wiring fault can
cause fail-safe audio not to
function.
“3D audio
left” message
heard in
right ear only
followed by
“3D audio
right” message
heard in left
ear only
1) Stereo headset is on
backwards
1) Verify correct orientation from
the left/right indication on
each side of the headset or
the position of the boom MIC
(usually attached on left side).
If the headset is backwards, the
left/right position information
will be swapped.
2) Incorrect aircraft
wiring (left/right
channels swapped)
2) See a service center as soon
as possible to inspect/correct
wiring. This wiring fault can
cause fail-safe audio not to
function.
“3D audio
left” message
heard in left
ear only, no
audio heard in
right ear.
1) Aircraft wired for
mono intercom
1) See a service center to wire the
installation for stereo headsets.
“3D audio
right” message
heard in right
ear only, no
audio heard in
left ear
1) Incorrect aircraft
wiring (right channel
used for mono
instead of left, or left/
right swapped)
1) See a service center as soon
as possible to inspect/correct
wiring. This wiring fault can
cause fail-safe audio not to
function.
3D Audio Troubleshooting