
QUICK REFERENCE IFD540
avidyne.com | 800.AVIDYNE 32
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Volume/Power/
Squelch Knob
CDI Nav Source
Active Waypoint
Standby Frequency
Active Frequency
Frequency Swap
(flip-flop)
Direct To
Procedure
Nearest
Frequency
Enter (select)
Clear (delete)
FMS Knob (context-
sensitive: scroll, zoom/
push to select)
Line Select Keys
(LSK)
COM/NAV Manual
Tuning Knob (Push for
NAV & Transponder)
Page Function Keys
(two-way rocker)
FMS, MAP, AUX
To start an FMS edit, either:
1. Press the 8ENTR function key,
2. Push the 6bottom right knob, or
3. Tap the screen in the same field twice.
To move your cursor, either:
1. Turn the 6FMS knob (the outer ring scrolls through each box,
whereas the inner ring scrolls through the fields of each box), or
2. Utilize hybrid touch by tapping the screen on a waypoint
or in the blank space between waypoints.
Overview Diagram
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