3D Audio Troubleshooting - Garmin GMA 350H Pilot's Manual

GMA 350H/350Hc Audio Panel

3D AUDIO TROUBLESHOOTING

If the aural messages are not heard in only the left and then the right
ear respectively the cause may be aircraft wiring or headset settings. Refer
to the following table if a headset or aircraft wiring problem is suspected.
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
"3D audio
right" message
heard in both
ears. "3D
audio left" not
heard
28
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)
1) Incorrect aircraft
wiring (right channel
used for mono
instead of left or left/
right swapped)
Garmin GMA 350H/350Hc Pilot's Guide
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.
1) See a service center as soon as
possible to inspect/correct wiring.
This wiring fault can cause fail-safe
audio not to function.
190-01134-14 Rev. L