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5
POWER ON
Powering on the Unit
1. Turn the COM power/volume knob clockwise to
turn the unit on and set the desired radio volume.
2. The Main and GPS software version page appears
briefly, followed by land and terrain database pages,
as the unit conducts self-tests to ensure proper
operation.
3. Once the self-test concludes, database confirma-
tion pages are displayed, showing the effective and
expiration dates of the databases on the NavData
®
card. Press the ENT key to acknowledge the last
database page and proceed to the instrument panel
self-test page. There may be more self-test screens
depending on optional equipment installed in your
aircraft.
4. The instrument panel self-test page allows you
to verify that the unit is communicating properly
with in-panel instruments. Compare on-screen
indications with the information depicted on
connected instruments, such as the CDI, HSI, RMI
and/or external annunciators. Once you have veri-
fied proper operation, turn the large right knob
to select "Set Full Fuel?", "Go To Checklist", or
"OK?" (to display the Satellite Status Page), and
then press the ENT key.
5. When the GPS receiver has acquired a sufficient
number of satellites to determine a position, the
Map Page will automatically appear showing your
present position.
Power-up Sequence