Garmin Flight Deck 100 Manual De Usuario

190-00728-04  Rev. A

169

If there is a failure of both Audio Panels, a fail-safe circuit connects the pilot’s headset and microphone directly

to the COM1 transceiver and the copilot’s headset directly to the COM2 transceiver. Audio is not available on
the speakers. If there is a failure of one Audio Panel, that side only has access to their respective on-side fail-
safe COM.

Audio is not available on the speakers in case of an Audio Panel and its cross-side GIA unit simultaneous 

failure.

If there is a failure of one Audio Panel, the remaining Audio Panel does not have access to the other side’s

COM or NAV. For example, if the pilot side Audio Panel fails, the copilot side Audio Panel has access to all
the radios except for COM1 and NAV1. In this case, the copilot can receive the audio from NAV2 and operate
COM2 for transmission/reception.

In addition, if there is a failure of one Audio Panel, the following functions are no longer available on the

failed  side;  NAV/ILS  audio,  speaker,  cockpit/cockpit-passengers  intercom,  aural  warning  alerts  on  headset,
entertainment inputs, and digital recording radio.  Also, if a stereo headset is in use, and an Audio Panel fails, 
only the left channel will be heard in the headphones.

The red DISPLAY BACKUP Button selects the Reversionary Mode.  See the System Overview Section for 

more information on Reversionary Mode.