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
5.
(Cont)
b.
(Cont)
(2) To install new PC board A8, 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.
(3) Turn on switch S1 on power sup-
ply. Depress TRANSMITTER
RESYNC switch S2. Wait about
5 minutes for system to stabilize.
Turn mode switch to TEST/
RESET and then to SECURE.
j.
Set multimeter to ohms and connect
leads to TB6 S-2 and S-2R. Turn
mode switch to SECURE. Meter
should indicate more than 100,000
ohms. Turn mode switch to TEST/
RESET and then to SECURE.
Meter should indicate less than
2,000 ohms for 4.5 to 6 seconds,
and then indicate over 100,000 ohms.
k.
If any of these indications are not cor-
rect, turn off switch S1 on power
supply. Remove PC boards A8, A9,
and A10. Set multimeter to ohms
and connect leads to following
points:
TB6 S-2 to J12/P1 pin 22
J12/P1 pin 22 to J8-3
TB6 S-2R to J12/P1 pin 41
J12/P1 pin 41 to J8-2
J8-15 to J12/P1 pin 21
J12/P1 pin 21 to S3
terminal 2-2
J10-H to J12/P1 pin 16
J12/P1 pin 16 to S3
terminal 2-3
5-87
