A localizer frequency must be tuned on both NAV
receivers to annunciate ILS.
EADI - TEST appears in left center of
display to indicate that flight director mode
selector lamp test is good. FD FAIL will
appear momentarily and be replaced by
TEST in the left center of the EADI display
to indicate a problem in the EFIS
components or interconnection of the flight
Preflight test of the composite mode will cause the
same results as the above test, except the digital
heading readout will be replaced with a red FAIL
indication, and the expanded localizer scale and
pointer will be removed.
Test is inhibited during glideslope capture.
Flight director/autopilot preflight test.
BATTERY switch (overhead control panel) -
Aircraft # I and # 2 INVERTER switches -
AVIONICS MASTER POWER switch
(overhead control panel) - ON or EXT PWR
# 1 and # 2 EFIS POWER switches
(overhead control panel) - ON.
AUTO PLT POWER
control panel) - ON.