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190-01007-A1 System Maintenance Manual GTN 6XX/7XX Part 23 AML STC
Rev. 7 Page 3-15
3.4.4.4 Digital Radar Enablement (GTN 7XX Only)
This section describes how to re-enable the Digital Radar
feature, which allows approved ARINC 708 Weather Radars
to be interfaced with the GTN 7XX.
NOTE
For first time Digital Radar enablement, refer to the
GTN 6XX/7XX AML STC IM, P/N 190-01007-A3,
for additional requirements and checkout
procedures. This manual only describes the
necessary steps to re-enable the feature for existing
installations.
1. Turn the GTN off by pulling the NAV/GPS
circuit
bre
aker.
2. Remove the database SD card from the data card
slot
and insert the Digital
Radar Enablement Card
,
(P/N 010-00878-42), that was used at the initial installation.
3.
Enter configuration mode on the GTN by applying power to the GTN (closing the circuit breake
r)
whi
le holding the HOME key.
4. Go to the Weather Radar page from the GTN Options page. Touch the Digital Radar key,
as
sh
own in Figure 3-16.
5. When prompted, touch Ye s to enable Digital Weather Radars. When the
feature is activated, the
Digital Radar key will be
lit green.
NOTE
The feature enablement card should be provided to the customer after service has been
completed.
Figure 3-16. Weather Radar Page