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Page Title: Table 5-1. Troubleshooting Procedures - Continued
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TM 5-6350-264-14&P-11
NAVELEX EE 181-AA-OMI-120/E121 C-7359-40-1
T.O. 31S9-2FSS9-1-11
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective Action
11. (Cont)
b.
(Cont)
(4)
To install new Signal Module,
position module in mount-
ing rack and install mount-
ing screws. Connect wires
to terminal board TB1.
Close and latch mounting
rack. Close and lock cab-
inet door.
12. Status Monitor
Defective Status
a.
Connect jumper from terminal 1 to
Module lamps
Monitor Module.
terminal 4 on Signal Module
flashing, Signal
Terminal board.
device silent.
b.
If audible signal device sounds,
Status Monitor Module is
defective.
c.
Remove Status Monitor Module
from Monitor Cabinet. Un-
lock and open Monitor Cab-
inet and turn off switch S1
on power supply. Release
swing-out rack. Remove
screws that secure Status
Monitor Module to rack and
remove module through front
of rack.
d.
Install new Status Monitor Module
in swingout rack and secure
with screws. Secure swingout
rack. Turn on switch S1 on
power supply.
13. Audible signal
Defective logic
Set multimeter to ac volts. Connect
device sounding
subassembly PC
meter to TB1-2 and 4 on Signal
and Signal Module
board.
Module. If meter indicates 0 vac,
lights not flashing.
replace logic subassembly PC
board.
(1)
To remove logic subassembly
PC board, tag and remove
wires from terminal board
TB1 located on back of
Signal Module. Remove
screws holding it in the
5-21

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