190-01878-05 Rev. A
Garmin GMA 345 3-COM Pilot’s Guide
10
GMA 345 3-COM Audio Panel
NOTE:
The 2-COM version of the GMA 345 (below) is described in the
GMA 345 Pilot’s Guide (Part Number: 190-01878-01).
GMA 345 (2-COM) User Interface
POWER-UP
The GMA 345 3-COM performs a self-test during power-up. During the
self-test all Audio Panel annunciator lights illuminate for approximately two
seconds. Once the self-test is completed, most of the settings are restored to
those in use before the unit was last turned off.
MONO/STEREO HEADSETS
Stereo headsets are recommended when using the GMA 345 3-COM.
Using a monaural headset in a stereo jack shorts the right headset channel
output to ground. While this does not damage the Audio Panel, a person
listening on a monaural headset hears only the left channel in both ears.
If a monaural headset is used at one of the passenger positions, any other
passenger using a stereo headset hears audio in the left ear only.
LEFT/RIGHT KNOBS
The
Left Inner Knob
powers-off the unit, and is used to control left
seat crew member ICS volume. The
Left Outer Knob
controls left seat
crew member music volume. The
Right Inner Knob
controls right seat
crew member ICS volume. The
Right Outer Knob
controls the right seat
crew member music volume. The seat considered the pilot position is
configurable for either left or right depending on the aircraft’s needs and is
set during installation. Passenger ICS and music volume is adjusted by the
knobs on the side associated with copilot.
Summary of Contents for GMA 345 3-COM
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