User Guide

190-00552-00 Rev. A
Garmin G1000 Pilot’s Guide for the Columbia 350/400
1-15
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.
Large (Outer)
Knob
Small (Inner)
Knob
Figure 1-12 Dual Concentric Knob
MFD/PFD CONTROL UNIT
The 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 (refer to Figure 2-1) 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.
Figure 1-13 GCU 476 MFD/PFD Control Unit
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