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
2. (Cont)
e.
(Cont)
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 or A10,
turn board so plastic ejector is to-
ward top. Align board with guides
at top and bottom of status proces-
sor. Slide board straight in until it
contacts receptacle at back of pro-
cessor. Then press firmly on board
until it seats completely in recepta-
cle.
k.
Turn on switch S1 on power supply. De-
press TRANSMITTER RESYNC
switch S2. Wait about 5 minutes for
system to stabilize. Turn mode switch
to TEST/RESET and then to SECURE.
f.
Bad TRANS-
a.
Tag, remove, and isolate Data Transmitter
MITTER
wire from TB7, terminal S-7. Set
RESYNC
multimeter to ohms and connect leads
switch.
to TB7, terminals S-6 and S-7. Meter
should indicate over 100, 000 ohms.
b.
Depress TRANSMITTER RESYNC switch.
Meter should indicate 0 ohms.
c.
If meter indicates more than 100, 000 ohms
with switch depressed, connect leads
to terminals with red and black wires
attached on back of TRANSMITTER
RESYNC switch.
d.
With switch depressed, meter should indicate
0 ohms. With switch released, meter
should indicate over 100, 000 ohms.
e.
If these indications are not correct, replace
switch.
(1)
To remove TRANSMITTER RESYNC
switch, turn off switch S1 on power
supply. Remove hex nut and push
switch through hole in panel. Use
5-50
