Mounting And 3.2 Equipment Setup And C - Garmin GNS 480 Installation Manual

3 P I
OST NSTALLATION
P
ROCEDURES
Once the GNS 480 unit has been installed, configure the unit for the particular installation and then
complete the checkout procedures herein to verify proper operation. The steps that are not applicable to
a particular installation may be skipped. A checkout log sheet is included in Table 3-7 on page 3-43, to be
filled out during the checkout procedure. The completed checkout log sheet should be maintained with
the aircraft permanent records.
3.1 M
OUNTING AND
Verify that all cables are properly secured and shields are connected as the install drawings indicate.
Installation may require that you check the movement of the aircraft controls to verify that there is no
interference.
3.2 E
QUIPMENT
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.
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
C
ONFIGURATION
W C
IRING HECK
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ETUP AND ONFIGURATION
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Post-Installation Configuration & Checkout
& C
HECKOUT
3-1