62
GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. C
Messages
Message
Description
Action
DATALINK-
GSR 56 is inoperative
or connection to GTN
is lost.
The GTN is confi gured
for a Garmin GSR 56
and the GTN cannot
communicate with the
GSR 56. GSR Weather,
Position Reporting, and
Phone Services will be
unavailable.
Close the GSR 56 circuit
breaker and ensure the
GSR 56 is receiving power.
Contact dealer for service.
DATALINK-
GSR 56 data services
inoperative; registration
required.
The GSR 56 is not
registered. GSR Weather,
Position Reporting, and
Phone Services will be
unavailable.
Contact dealer for service.
DATA LOST-
Pilot stored data was
lost. Recheck settings.
User settings such as map
detail level, NAV range
ring on/off, traffi c overlay
on/off, and alert settings
have been lost.
Recheck settings.
DATA SOURCE-
Pressure altitude
source inoperative or
connection to GTN lost.
The GTN is confi gured to
receive pressure altitude
but is not receiving it from
any source.
Leg types requiring an
altitude source will no
longer automatically
sequence. Contact dealer
for service.
DATA SOURCE-
Heading source
inoperative or
connection to GTN lost.
The GTN is confi gured
to receive heading
information but is not
receiving it from any
source.
Heading up map displays
will not be available.
Contact dealer for service.
DEMO MODE-
Demo mode is
active. Do not use for
navigation.
Demo mode is in
operation.
Do not use for navigation.
Power cycle the GTN to exit
demo mode.
Summary of Contents for GTN 725
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