G900X/G950 Installation and Maintenance Manual – PICP & Warranty Registration
Page C-45
190-00719-00
Revision D
C.2.20 AHRS
Checkout
Restart both displays in normal mode to conduct final system checks. When the PFD powers up in
normal mode, the AHRS attitude and heading information displayed should become valid within 1 minute
of power-up, as shown in Figure C-22 (provided both GPS receivers have a valid position; if GPS is
unavailable, AHRS initialization may take as long as 2 minutes).
Figure C-22. AHRS Information Valid
Test the AHRS reversionary paths by pressing the red reversionary mode button on the audio panel.
Ensure that both displays have valid AHRS information, as shown in Figure C-23.
Figure C-23. Reversionary Mode AHRS Information