190-01007-C1
GTN Xi Part 23 AML STC Maintenance Manual
Rev. 1
Page 6-5
6.1.1 Display of Self-Test Data
Following normal power-up, the database pages are displayed, followed by the
Instrument Panel
Self-Test
page. Touch
Continue
to display the
Instrument Panel Self-Test
page. During this time, the
electrical outputs are activated and set to the values listed below. Touch
Continue
to acknowledge the
Instrument Panel Self-Test
page. This is not a required check, although this page can be useful for
troubleshooting installation problems.
Table 6-1 Self-Test Values
Parameter
Self-Test Value
Course Deviation
Half-scale left deviation, TO indication, flag pulled
Glideslope/Vert. Deviation
Half-scale up deviation, flag pulled
Annunciators
All On
Selected Course (OBS)
The GTN Xi displays the OBS value (149.5° if interfaced to an HSI
with driven course pointer).
Desired Track
149.5° (Displayed as 150°)
Items below are not displayed on the
Instrument Panel Self-Test
page
Distance to Go
10.0 nautical miles
Time to Go
4 minutes
Bearing to Waypoint (RMI)
135°
Active Waypoint
“GARMN”
Groundspeed
150 knots
Present Position
N 39°04.05’, W 94°53.86’
Waypoint Alert
Active
Phase of Flight
En Route
Message Alert
Active
Leg/OBS Mode
Leg Mode
GPS Integrity
Invalid
Roll Steering (if applicable)
Flight Director commands 0° bank (level flight) for 5 seconds;
commands increasing right bank at 1°/second for 5 seconds;
commands 5° right bank for 5 seconds; commands decreasing right
bank at 1°/second for 5 seconds, until command is 0° bank again.
This cycle repeats continuously.
