Garmin GMA 345, Pilot'S Manual

Page: 17 / 32

190-01878-01 Rev. A
Garmin GMA 345 Pilot’s Guide 17
GMA 345 Audio Panel
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Pressing the PILOT ‘ICS ISOLATION’ Key isolates the pilot from all
other ICS positions (copilot and passengers). The copilot and passengers
share communication between themselves but cannot communicate
with the pilot. A solid annunciation of the in-key annunciator indicates
PILOT ICS ISOLATION is active.
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Pressing the CREW ‘ICS ISOLATION’ Key places the pilot and copilot
on a common ICS communication channel. The passengers are on their
own intercom channel and can communicate with each other, but
cannot communicate with the pilot and copilot. A solid annunciation
of the inkey annunciator indicates CREW ICS ISOLATION is active.
INTERCOM VOLUME
The knobs on either side of the GMA 345 control intercom and music
volume independently. The left inner and outer knobs are dedicated to the
audio levels for the pilot headset; the right inner and outer knobs control
audio levels for not only the copilot but also any passenger headsets. The
inner, smaller knobs on both sides are used to control intercom volume
for the receiving headsets. The outer, larger knobs are used to control
music volume.
The left inner knob can be used to turn off the GMA 345 audio panel,
by turning fully counter-clockwise until the knob clicks. All backlight and
annunciator LEDs will turn off.
The position marks on all four knobs are not night-time visible.
RADIO MUTE MUSIC
Press and hold the MUSIC Key to enable or disable muting of music
channel 1, music channel 2 and Bluetooth music audio when radio (i.e.,
COM, NAV, or AUX) audio is active.