TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(h)
R5 line selection switch - Depress to select
INS SETUP page.
(i)
R3 line selection switch - Depress to change
AUTO MIXING mode to TACAN.
(j)
INS UPDATE annunciator light (mission
control panel) - monitor. Illumination
indicates satisfactory TACAN updating of
the INS.
(k)
R5 line selection switch - Depress to select
INS SETUP page.
(l)
R3 line selection switch - Depress to change
AUTO MIXING mode to GPS.
(m) INS UPDATE annunciator light (mission
control panel) - monitor. Illumination
indicates satisfactory GPS updating of the
INS.
(n)
INS/TACAN
pushbutton
selector
switch
(display controller) - Depress to select INS.
(o)
NAV mode switch-indicator (flight director
mode selector) - Depress to select NAV
mode.
(p)
Autopilot
ENGAGE
switch-indicator
-
Depress to engage autopilot. Observe EFIS
displays LNAV information and autopilot
follows LNAV heading signals.
(q)
After landing, taxi aircraft to a location
whose geographical coordinates are known,
and compare INS position indication to
4-11
