TM 1–1520–238–T–1
4–62
Change 5
4–9
PNVS – INTERACTIVE FD/LS CHECK (cont)
4–9
TASK
RESULT
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.
NOTE
RHE – RT BUS NO–GO RH FAB (ACZ) and/or
RHE – LT BUS NO–GO RH FAB (ACZ) will
appear if both pilot and CPG SAFE/ARM
switches are off.
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.
d. Respond to prompts
(messages) within
30 seconds of
appearing on the
HOD.
If more than 30 seconds
elapse, the prompt
(message) PROMPT TIMED
OUT REENTER PROMPTS
(Y) OR EXIT FD/LS (N)
appears on HOD.
When response is (Y), on
DEK, press and release L
SHIFT and YZ*/9 keys (ADC)
or Y key on the CDU (ADD).
When the response is (N),
press and release MID
SHIFT and MNO/5 keys
(ADC) or the N key on the
CDU (ADD).
