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
1.
(Cont)
d.
(Cont)
f.
If meter still indicates less than 1 vdc,
turn off switch S1 on power supply. Re-
move PC board A8. Lift board ejector
until PC board pops out of receptacle,
then grasp board and pull straight out.
g.
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.
h.
Set multimeter to dc volts and connect
positive meter lead to J8-11, and nega-
tive lead to chassis (ground). Ensure
that no alarms are activated.
i.
If meter indicates more than 10 vdc, re-
place PC board A7.
(1) To Remove PC board A7, 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 A7, 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.
(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.
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