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
until board pops out of recep-
identification
tacle at back of status proces-
circuitry.
sor. Then grasp PC board and
(Cont)
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 processor. Slide board
straight in until it contacts re-
ceptacle at back of processor.
Then press firmly on board
until it seats completely in re-
ceptacle.
l.
Turn mode switch to SECURE. Connect
positive meter lead to J11-10.
Meter should indicate 20 ±1 vdc.
Turn mode switch to TEST/RESET,
and then to ACCESS. Meter should
indicate 0 volts.
m. If meter indicates 20 ±1 vdc with switch
in TEST/RESET position, turn
mode switch to ACCESS. Connect
positive meter lead to mode switch
S3, terminal 2-3. If meter indicates
20 ±1 vdc, turn off switch S1 on
power supply. Use a soldering iron
of 50 watts maximum to disconnect
wire from S3, terminal 2-3. Isolate
wire and turn on switch S1.
n.
Turn on switch S1 on power supply.
Depress TRANSMITTER RESYNC
switch S2. Wait about 5 minutes
for system to stabilize. Turn mode
switch to TEST/RESET and then
to SECURE.
5-109
