Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 812

SECTION 9 - SUPPLEMENTS CESSNA
SUPPLEMENT 12 MODEL 208B 867 SHP
GARMIN G1000
DUAL GARMIN GMA 1347 AUDIO PANELS
GENERAL
With the Dual Garmin GMA 1347 audio panel installation a second
audio panel has been added between the MFD and copilot's PFD.
Refer to the Garmin G1000 CRG for specific operating information on
all Garmin equipment.
A pushbutton switch labeled DISPLAY BACKUP on each audio panel
allows manual selection of reversionary mode for the respective PFD
and MFD. The MFD can operate in reversionary mode by pressing
either DISPLAY BACKUP switch on either audio panel.
Each cockpit speaker is tied to the respective audio panel and the
audio is controlled by the individual audio selector switches and
adjusted for volume level by using the selected receiver volume
controls. The system is designed so that microphones are voice
activated, with transmission over the COM radios controlled by the
push-to-talk switches.
The headsets plug into microphone and headset jacks located on the
left side of the instrument panel for the pilot and the right side of the
instrument panel for the copilot. Push-to-talk switches for the headsets
are mounted on the both control wheels.
Four additional passenger intercom headset jacks are available as an
option to the Dual Garmin GMA 1347 audio panel installation. Volume
control for these four headsets is controlled by using the audio panel 2
volume control knob, while the standard intercom headset volume is
controlled by audio panel 1.
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FAA APPROVED
S12-4 208BPHCUS-S12-00
U.S.