Garmin GNS 480, Installation Manaul

Page: 82 / 200

Post-Installation Configuration & Checkout
3-2 560-0982-01 Rev L GNS 480 (CNX80) Installation Manual
3.2 Equipment Setup and Configuration
Prior to system operation, the GNS 480 must be configured for the particular installation using the setup
functions provided.
The system setup and checkout functions are reached in the Ground Maintenance mode of the GNS 480.
This mode should not be accessed during flight. The Ground Maintenance mode is reached by pressing the
line select keys 1, 4, and
MENU/ENTER
in sequence immediately after the GNS 480 initialization is
complete and before any other bezel keys on the GNS 480 are pressed. Line select key 1 is the top line
select key, line select key 4 is the fourth key down, and
MENU/ENTER
is the lower most key below the
line select keys. After pressing the keys, wait for the GNS 480 to restart into Ground Maintenance mode.
The Ground Maintenance mode default menu display (SETUP) is shown in Figure 3-1. Pressing the
SETUP
,
TEST
or
INPUT
smart keys along the bottom allows selection of that function. Pressing the
EXIT
smart key will return the GNS 480 to the Airborne mode.
main page
second page
Figure 3-1. Ground Maintenance Mode Display