Controls; Top And Bottom Knobs - Aspen Avionics Evolution Backup Display EFD1000 Pilot's Manual

2.2. Controls

The primary means for the pilot to control the EBD are the two knobs and three buttons
at the right-hand side of the display. The knobs control setting IAS and HDG. The right-
hand three buttons control selection of navigation sources for the GPS. There are three
additional buttons to the left of the Hot Keys to control entering and exiting the Menu,
setting the Map Range, and Manual Power Control (PWR).
Five Hot Keys above the Navigation Display toggle various features on and off. The
function of each is indicated by the label on the display below each key.

2.2.1. Top and Bottom Knobs

The Top and Bottom Knobs are designed to provide immediate operation yet minimize
the possibility of an inadvertent operation. This is accomplished by requiring that the first
action of the knob "wakes up" the knob and changes the label from cyan to magenta.
The first click when the knob is turned or the first press on the knob, "wakes up" the knob
function.
Press the knob more than once to cycle through its Menu options in a round-robin
sequence or press and hold the knob to synchronize (SYNC) the function's value (see
Section 2.2.1.3. SYNC Function). After 10 seconds of inactivity, the knob returns to its
default setting.
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091-00027-001 REV A Evolution Backup Display Pilot's Guide
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