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Problem Possible Cause Action
Search for nearest
waypoints reveals
too few or wrong
types of waypoints
Incorrect selection
of waypoint types to
show after search
Runway Limits are
set for a value that
is too large
Check “Airspace
Setup” function and
verify that the
desired waypoint
type to search is
“ON”, see page 10
Check the “Identifier
and Waypoint
Type” section of the
Moving Map
function on page 6
Check the Runway
Limits for too large
a value, see page
12
Position fix seems
inaccurate
Wrong seed
position
Re-enter seed
position
Bearing & distance
values appear to be
wrong
A mistake may have
been made in
entering the Lat/Lon
position for a User
waypoint, or the
wrong waypoint was
selected
Verify that the
position of the User
waypoint is accurate
Check the FROM
and TO waypoints
Wrong bearing and
track values
Incorrect magnetic
variation entered
Check Magnetic
Var option - select
“Automatic” or
enter correct value,
see page 7
Display blinks Voltage applied to
system is too low
Check avionics
power bus
No altitude info Altitude information
device was not
configured during
installation
Check installation
configuration
No altitude info No power to the
altitude encoder
Check altitude
encoder power
13-4
Troubleshooting