Ground Checks (Normal Mode); Display Of Self-Test Data - Garmin GTN 635 Installation Manual

6.11

Ground Checks (Normal Mode)

For the following checks, cycle power on the GTN and power it up in normal mode.

6.11.1 Display of Self-Test Data

Following normal power-up, the database page is displayed, followed by the Instrument Panel Self-Test
page. Touching ‗Continue' displays 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.
Parameter
Course Deviation
Glideslope/Vert. Deviation
Annunciators
Bearing to Waypoint (RMI)
Selected Course (OBS)
Desired Track
Items below are not displayed on the INSTRUMENT PANEL SELF-TEST page
Distance to Go
Time to Go
Active Waypoint
Groundspeed
Present Position
Waypoint Alert
Phase of Flight
Message Alert
Leg/OBS Mode
GPS Integrity
Roll Steering (if applicable)
GTN 625/635/650 TSO Installation Manual
190-01004-02
Half-scale left deviation, TO indication, flag pulled
Half-scale up deviation, flag pulled
All On
135°
The GTN displays the OBS value (149.5° if interfaced to an HSI
with driven course pointer).
149.5° (Displayed as 150°)
10.0 nautical miles
4 minutes
"GARMN"
150 knots
N 39°04.05‟, W 94°53.86‟
Active
En Route
Active
Leg Mode
Invalid
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.
Self-Test Value
Page 6-37
Rev. C