Mfd/Pfd Control Unit (Optional) - Garmin G900X Pilot's Manual

SYSTEM OVERVIEW
The NAV, CRS/BARO, COM, FMS, and ALT knobs are concentric dual knobs, each having small (inner)
and large (outer) control portion. When a portion of the knob is not specified in the text, either may be used.

MFD/PFD CONTROL UNIT (OPTIONAL)

The optional MFD/PFD Control Unit is a pedestal-mounted user interface allowing for ease of data entry,
PFD/MFD operation, and NAV/COM tuning. Many procedures in this Pilot' s Guide can be performed using
the MFD/PFD Control Unit rather than the display bezel controls. Indicators above the PFD, MFD, NAV, and
COM keys are illuminated when their respective control mode(s) are selected. The unit is in MFD control mode
by default on system power-up.
NAV/COM radio tuning can be accomplished in either PFD or MFD control mode. The appropriate frequency
box on the selected display is outlined by a light blue selection box, which flashes for a few seconds to indicate
Control Unit activity (refer to the Audio Panel and CNS Section for more information about NAV/COM tuning).
Selection of a different display control or radio tuning mode results in cancelation of the previous radio tuning
mode.
1-20
Large (Outer) Knob
Small (Inner) Knob
Figure 1-14 Dual Concentric Knob
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Figure 1-15 GCU 476 MFD/PFD Control Unit (Optional)
Garmin G900X Pilot's Guide
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190-00726-00 Rev. A