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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
20. (Cont)
b.
(Cont)
cabinet and connect termi-
nal leads. Close and lock
cabinet door.
21. Percolating noises
Loss of regulation
or fumes coming
from 27 vdc charge
from MC.
supply.
Open door, wait two min-
utes and then turn off
switch S1 on power supply.
Replace power supply.
(1)
To remove one-zone Monitor
Cabinet power supply, un-
lock and open cabinet
door. Unlatch and swing
out mounting rack. Posi-
tion power switch S1 to
POWER OFF. Turn off ex-
ternal ac power by turning
off circuit breaker. Tag
and remove wires from ter-
minal board TB1, located
on back of Signal Module.
Remove the mounting
screws and remove Signal
Module. Remove mount-
ing screws that hold Status
Monitor Module in posi-
tion. Remove module
from mounting rack. Dis-
connect battery terminal
leads. Slide batteries to
the right and remove from
cabinet. Remove screws
and lock washers and re-
move terminal board cover
from TB1 on power supply.
Tag and disconnect all in-
terconnecting wires from
TB1, TB2, and TB3. Re-
move nuts from captive
screws. Slide power supply
to the right and remove
from cabinet.
5-39
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