Figure 3-19 - Main Cdi Flag; Figure 3-20 - Auxiliary Cdi F - Garmin GNS 480 Installation Manual

Post-Installation Configuration & Checkout
3.3.1.1.1 Flag Test
The FLAG TEST page allows testing of the TO/FROM, CDI Valid, and VDI Valid flags for both the
Main and Auxiliary CDI outputs. The Nav Superflag, GSI Superflag, and Localizer (ILS Energize) can
also be tested for the Main CDI. While on the TEST menu page, press the FLAGS line select key to
display the FLAG test page. Press the SELECT line select key to toggle between MAIN and AUX CDI
flag tests, as shown in Figure 3-19 and Figure 3-20, respectively.
Figure 3-19 - Main CDI Flag Test
Figure 3-20 – Auxiliary CDI Flag Test
When on the appropriate page turn the large, outer knob to select the flag to be tested. Then turn the
small, inner knob to change the setting of that flag. Test each setting for every flag of each CDI
connected to the GNS 480.
Press the TEST or BACK smart key to return to the Ground Maintenance Test menu.
3-20 560-0982-01 Rev A GNS 480 (CNX80) Installation Manual