Garmin GTN 725 Cockpit Reference Manual page 74

Message
GPS SEARCHING SKY-
Ensure GPS antenna has
an unobstructed view of
the sky.
GTN-
GTN needs service.
HTAWS-
Invalid Terrain Database
INTERFACE ADAPTER-
GAD 42 configuration
needs service.
INTERFACE ADAPTER-
GAD 42 needs service.
INTERNAL SD CARD
ERROR-
GTN needs service.
INTERNAL SD CARD
REMOVED-
GTN needs service.
KEY STUCK-
HOME key is stuck.
66
Description
The GPS module is
acquiring position and
may take longer than
normal. This message
normally occurs after
initial installation or if
the unit has not been
powered for several
weeks.
The GTN has lost
calibration data that was
set by Garmin during
manufacturing.
The Terrain database is of
insufficient resolution for
use with HTAWS.
GAD 42 indicates a
configuration error.
GAD 42 indicates it needs
service. The
GAD 42 may continue to
function.
Internal SD memory card
has an error. This card is
not accessible by the user.
Internal SD memory card
was removed. This card is
not accessible by the user.
The HOME key has been
in a pressed position for
at least 30 seconds. This
key will now be ignored.
GTN 725/750 Cockpit Reference Guide (CRG)
Action
No action is necessary;
message is informational
only.
Contact dealer for service.
Load HTAWS specific terrain
database on the external SD
memory card.
Verify all input/output
data from/to the GAD 42
Interface Adapter. Contact
dealer for service.
Verify all input/output
data from/to the GAD 42
Interface Adapter. Contact
dealer for service.
Contact dealer for service.
Contact dealer for service.
Verify the HOME key is not
pressed. Contact dealer
for service if this message
persists.
190-01007-04 Rev. D