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
4. (Cont)
f. (Cont)
r.
If meter does not indicate more than
100,000 ohms with wire removed from
TB8-F-1, replace PC board A10.
(1) To remove PC board A10, 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 board A10, turn
board so plastic ejector is toward
top. Align board with guides at top
and bottom of status processor.
Slide board straight in until it con-
tacts receptacle at back of proces-
sor. Then press firmly on board
until it seats completely in recep-
tacle.
s.
Turn off switch S1 on top of power supply.
Remove PC boards A8, A9, and A10.
Set multimeter to ohms and connect
leads to following points:
J10-18 to S5 terminal 8 (gray wire),
S5 terminal 9 (orange wire) to
J8-5, J8-6 to J9-C, J10-L to S5
terminal J9-D to S5 terminal 5
(orange wire, center terminal),
2 (green wire).
Meter should indicate 0 ohms.
t.
If meter does not indicate 0 ohms at any
point, inspect for broken or loose con-
nections. Resolder any bad connec-
tions.
u. Turn on switch S1 on top of power supply.
Depress TRANSMITTER RESYNC
switch S2. Wait about 5 minutes for
system to stabilize.
5-75