Garmin GMA 350H Pilot's Guide - Page 22

GMA 350H 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. 3D Audio Troubleshooting Symptom(s) Cause(s) Solution(s) "3D audio 1) Mono headset in use left" message heard in both 2) Stereo headset in use ears. with mono/stereo "3D audio switch set to 'mono' right" message 3) Aircraft wiring has not heard left audio wired to both left and right channels of stereo headset jack 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. "3D audio 1) Mono headset in use left" message 2) Stereo headset in use heard in both with mono/stereo ears, followed switch set to mono by "3D audio right" message heard in both ears 3) Incorrect aircraft wiring (left/right shorted together) 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. "3D audio 1) Incorrect aircraft right" message wiring (right channel heard in both used for mono ears. "3D instead of left or left/ audio left" not right swapped) heard 1) See a service center as soon as possible to inspect/correct wiring. This wiring fault can cause fail-safe audio not to function. 22 Garmin GMA 350H Pilot's Guide 190-01134-14 Rev. B