Garmin G500H Pilot's Manual page 43

Selected Soft Key
Unselected Soft Key
When a soft key is selected, its color changes to black text on gray background
and remains this way until it is turned off, at which time it reverts to white text
on black background. When a soft key function is disabled, the soft key label is
subdued (dimmed).
NOTE: If a soft key is pressed and held for longer than 1 second, it is
ignored.
AP Test
The AP TEST soft key is available if the GAD 43 is used to provide attitude
information to an autopilot. The AP TEST soft key disengages the autopilot
as part of the GAD 43 test.
CDI
The CDI soft key toggles between the selection of GPS or VOR/LOC as the
active navigation source. The GDU CDI soft key will change the source in
the connected navigator and making a source change in the navigator will be
reflected in the GDU 620.
1-2
The 1-2 soft key toggles between the available receivers for selected navigation
source (i.e. GPS1 and GPS2 or VOR/LOC1 and VOR/LOC2). This soft key
will only be present if the system is configured for a second GPS or VOR/
LOC.
PFD
Pressing the PFD soft key displays the SYN VIS, DME, BRG, and BACK soft
keys. The DME and SYN VIS soft keys will only be present if the system is
configured for these features.
190-01150-02 Rev. J
Unselected Soft Key
Soft Key Not Available
For Selection
Figure 2-4 PFD Soft Key Layout
Garmin G500H Pilot's Guide
Soft Key Labels
Soft Keys
Soft Key Labels
2-3