Garmin GMA 340 audio panel, during power on only LED annunciators on right side of panel light up, when pushing test button same thing, only annunciators on right side of panel light up.
Has anyone seen this problem before and know what may be the cause. No longer supported by Garmin and parts no longer available.
Has anyone seen this problem before and know what may be the cause. No longer supported by Garmin and parts no longer available.