TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Table 5-2. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
5.
(Cont)
b.
(Cont)
J9-3 to J12/P1 pin 21
J12/P1 pin 21 to S3
terminal 2-2
J9-13 to J12/P1 pin 16
J12/P1 pin 16 to S3
terminal 2-3
Meter should indicate 0 ohms.
l.
If meter does not indicate 0 ohms at any
point, inspect for broken or loose
connections. Resolder any bad
connections.
m. Reconnect Data Transmitter or Monitor
Cabinet wires to TB6, terminals
S-2 and S-2R.
6.
Improper
Improper
a.
Turn mode switch to TEST/RESET.
operation
operation of
Press and release CU TAS. Audible
of TEST/
audible signal
signal device should sound. Turn
RESET
device.
mode switch to ACCESS and then
mode.
to TEST/RESET. Audible signal
device should continue to sound
for 10 ±2 seconds and then stop.
b.
If audible signal device sounds for less
than 8 or more than 12 seconds, re-
place PC board A9.
(1) To remove PC board A9, turn off
switch S1on top of power sup-
ply Place thumb or finger un-
der board ejector and lift up un-
til board pops out of receptacle
at back of status processor.
Then grasp PC board and pull
straight out.
(2) To install new PC board A9, turn
board so plastic ejector is to-
ward top. Align board with guides
at top and bottom of status pro-
cessor. Slide board straight in un-
til it contacts receptacle at back
of processor. Then press firmly
on board until it seats completely
in receptacle.
5-88
