Pilot's Guide

190-009663-02 Rev. B Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi 133
AUDIO PANEL AND CNS
4.6 AUDIO PANELS PREFLIGHT PROCEDURE
NOTE: If the flight crew is using headsets that have a high/low switch or volume control knob, verify that
the switch is in the high position and the volume control on the headsets are at max volume setting. On
single-pilot flights, verify that all other headsets are not connected to avoid excess noise in the audio
system.
NOTE: When the MAN SQ Key is pressed, the flight crew is now able to set the ICS squelch manually. If
manual squelch is set to full open (SQ annunciated and the small knob turned counterclockwise) background
noise is heard in the ICS system as well as during COM transmissions.
AfterpoweringuptheG1000systemthefollowingstepsaidtheightcrewinmaximizingtheuseoftheAudio
Panelsaswellaspreventightcrewinducedissues.Thesepreightproceduresshouldbeperformedeachtimea
ightcrewboardstheaircrafttoensureawarenessofallaudiolevelsintheAudioPanelsandradios.
Pilot Side Copilot Side
Figure 4-45 Audio Panel Controls
Reversionary Mode
for PFD1 and MFD
Reversionary Mode
for PFD2 and MFD
Cabin ICS
Automatic/Manual
Squelch
Volume Annunciation Squelch Annunciation
Pilot/Copilot
ICS
ICS Volume and
Squelch Control
Master Volume
Control
Independentradio volumeadjustments madeusingthe PFDcontrolsaffectonlythe audiooutput foreach
radio selected for adjustment. Radio volume adjustment affects both crew positions equally for each radio that
is adjusted. Turning the master volume control located on either Audio Panel affects only the audio heard in the
corresponding crew position headset. Thus, radio volume adjustments may be overridden by each crew position
independently using the master volume control on the Audio Panel for the respective crew position. The master
volume control for each Audio Panel affects all other system audio output for the pilot or copilot headset.