Garmin G1000 Pilot’s Guide for the Diamond DA40
190-00592-00 Rev. A
5-4
AUDIO PANEL
5.2 OPERATION
POWER-UP AND FAIL-SAFE OPERATION
Power-up
The audio panel performs a self-test during power-up.
All panel annunciator lights illuminate for approximately
two seconds. Once the self-test is completed, settings are
restored to the ones in use before the unit was last turned
off.
Fail-safe Operation
A fail-safe circuit connects the pilot’s headset and
microphone directly to COM1 in case power is interrupted
or the unit is turned off. In this case, audio is not available
on the speaker.
KEY ANNUNCIATORS
Pressing any key on the audio panel activates and
deactivates the function. Triangular annunciators above
each key illuminate to show when the function is on or
off (Figure 5-2). Annunciators do not illuminate on a
disabled function.
LIGHTING
Key annunciators and backlighting are controlled
automatically by the PFD.
TRANSCEIVER KEYS
The following four transceiver keys appear at the top
of the audio panel front panel:
COM1 MIC
,
COM2 MIC
,
COM1,
and
COM2
(Figure 5-2). COM audio can be
selected by pressing either the desired COM key or by
pressing a COM MIC key.
Figure 5-2 Transceiver Keys
Disabled on Diamond
DA40 Aircraft
Annunciator
COM MIC Keys
Pressing the
COM1 MIC
key selects the COM1 radio
as the active transceiver. Pressing the
COM2 MIC
key
selects the COM2 radio as the active transceiver. The
receiver audio key,
COM1
, or
COM2
is also selected.
The COM frequency is highlighted in green in the active
frequency field of the PFD and MFD.
Only one transceiver can be selected at a time. If
COM2 MIC
is pressed when
COM1 MIC
is active, the
unit switches to COM2.
COM Keys
Pressing the
COM1
receiver key selects the COM1
radio as an active receiver. Pressing the
COM2
receiver
key selects the COM2 radio as an active receiver. Any
combination of radios can be selected separately or
simultaneously regardless of the active transceiver
selection. The active COM radio is always heard on the
headsets.
Содержание G1000 Series
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