Button Summary
The functions associated with each of the nine buttons is summarized
below:
4-19
4
Button Operations Map
CHAPTER
Button Function Performed
VUE Switches between 360-degree compass rose view
and 70-degree ARC mode view.
Increases the range (“zooms out”) on the map and
Stormscope
®
displays if either is turned on.
Decreases the range (“zooms in”) on the map and
Stormscope
®
displays if either is turned on.
A-B Switches between two groups of screen settings.
Allows the pilot to set up two different displays and
swap back and forth between them with a single
button.
SYNC Moves the heading bug to the top of the display, to
align it with the current aircraft heading.
SHFT Allows access to sub-menu functions.
BRG Turns the bearing pointers on and off. Press
repeatedly to display pointer 1, pointer 2, both, or
“OFF”.
MAP Selects map memory to display or turns it off
completely.
NAV Selects the nav source to be connected to the HSI
course pointer, i.e. the primary nav source.
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