190-00962-02 Rev A
Garmin G1000 Pilot’s Guide for the Diamond DA42NG
127
AUDIO PANEL AND CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
4.7 ABNORMAL OPERATION
Abnormal operation of the G1000 includes equipment failures of the G1000 components and failure of
associated equipment, including switches and external devices.
STUCK MICROPHONE
Ifthepush-to-talk(PTT)Keybecomesstuck,theCOMtransmitterstopstransmittingafter35secondsof
continuousoperation.AnalertappearsonthePFDtoadvisethepilotofastuck microphone.
The
COM1 MIC
or
COM2 MIC
Key Annunciator on the Audio Panel flashes as long as the PTT Key remains
stuck.
Figure 4-52 Stuck Microphone Alert
COM TUNING FAILURE
IncaseofaCOMsystemtuningfailure,theemergencyfrequency(121.500MHz)isautomaticallytunedin
the radio in which the tuning failure occurred. Depending on the failure mode, a red X may appear on the
frequency display.
Figure 4-53 COM Tuning Failure
Emergency Channel
Loaded Automatically
AUDIO PANEL FAIL-SAFE OPERATION
IfthereisafailureoftheAudioPanel,afail-safecircuitconnectsthepilot’sheadsetandmicrophonedirectly
totheCOM1transceiver.Audioisnotavailableonthespeaker.
REVERSIONARY MODE
The red DISPLAY BACKUP Button selects the Reversionary Mode. See the System Overview Section for
more information on Reversionary Mode.
Figure 4-54 Display Backup Button
To Next Page
Loading...
Need help?
General
