1-14Garmin G500 Pilot’s Guide 190-01102-02 Rev. EForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8GlossaryAppendix AAppendix BIndex1.4 System OperationNOTE: Refer to Section 6 for detailed descriptions of all alerts andannunciations.1.4.1 Pilot ControlsThe GDU 620 controls have been designed to simplify operation of the systemand minimize workload and the time required to access functionality. Controlsare located on the PFD and MFD bezels and are comprised of a PFD knob, MFDdual concentric knobs, bezel keys, and soft keys.1.4.1.1 PFD KnobPressing the PFD knob performs the default action for the selected mode.Refer to the PFD Bezel Keys section for details.HeadingMode CourseMode AltitudeMode Vertical SpeedMode BarometerModeFigure 1-16 Selection Modes Adjusted with the PFD KnobNOTE: After 10 seconds of inactivity in another mode, the PFD knobselected mode will revert to Heading mode.1. Press the desired PFD mode selection key (HDG, CRS, ALT, V/S, or BARO).A window will be displayed near the upper left corner of the HSI showing thecurrent value for that mode.2. Turn the PFD knob to select the desired value.
