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
8.
(Cont)
Bad alarm
q.
Use a soldering iron of 50 watts max-
identification
imum to reconnect wire to S3,
circuitry.
terminal 2-2.
(Cont)
r.
Turn on switch S1 on power supply.
Depress TRANSMITTER RE-
SYNC switch S2. Wait about 5
minutes for system to stabilize.
Turn mode switch to TEST/
RESET and then to SECURE.
s.
Inspect LEDs on PC board A12. If
more than one LED is lighted, en-
sure that sensors are not in an
alarm condition. Turn mode
switch to TEST/RESET and then
to SECURE. One at a time, dis-
connect and then reconnect wires
on terminal 1 on terminal strips
TB8-F through TB13-E. When
wire is disconnected from TB8-F,
LED F on top of PC board A12
should light immediately. If a
time delay period is used, other
LEDs will not light immediately
after wire is disconnected from
associated terminal strip. After
each wire is disconnected, only
LED associated with that terminal
strip should light. If wrong LED,
or if more than one LED lights,
replace PC boards A9 and A11.
(1) To remove PC boards A9 and A11,
turn off switch S1 on top of
power supply. Place thumb or
finger under board ejector and
lift up until board pops out of
receptacle at back of status
processor. Then grasp PC board
and pull straight out.
(2) To install new PC boards A9 and
A11, turn board so plastic
ejector is toward top. Align
board with guides at top and
bottom of status processor.
5-112
