TM 1–1520–238–T–1
Change 5
4–43
4–7
MSL SYSTEM – INTERACTIVE FD/LS
4–7
CHECK (cont)
TASK
RESULT
a. On DEK (fig. 2–49),
rotate DATA ENTRY
switch FD/LS (ADC).
On CDU (fig.
2–49.2), select FAB
If there are no system
failures, the following
message (prompt) appears:
ANY KEY FOR FD/LS
MENUS
FDLS (ADD).
When a list of failures is
displayed, the list is scrolled
by pressing and releasing the
ENTER/SPACE key on the
DEK (ADC) or SPC key on
the CDU (ADD). Scroll until
the following message
(prompt) appears:
ANY KEY FOR FD/LS
MENUS
b. Obtain maintenance
menu by pressing
and releasing any
DEK key except
ENTER SPACE or
SHIFT (ADC); or any
key on the CDU,
except SPC (ADD).
If FD/LS menus do not
appear on HOD, refer to
TM 9-1230-476-20-2 for
troubleshooting the MUX
system.
c. On DEK, press and
release ()/0 and
VWX/8 keys (ADC).
On CDU, press and
release 0 and 8 keys
If any MUX NO–GO appears
on HOD, refer to
TM 9-1230-476-20-2 for
troubleshooting the MUX
system.
(ADD).
When MUX
COMMUNICATION GO
appears on the HOD, go to
next step.
NOTE
The FCC software can detect a boresight
corrector loss for a weapon and/or sighting
system. Flight crew or maintenance personnel
are advised of the degraded accuracy on the
high–action–display. Continuous and
maintenance FD/LS messages are displayed
upon selection.
