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)
g. (Cont)
t.
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.
u.
Set multimeter to dc volts. Connect pos-
itive lead to A10, TP1 (brown), and
negative lead to chassis (ground).
v.
If meter indicates 18.5 to 21 vdc, re-
move PC board A8.
(1) To remove PC board A8, turn off
switch S1 on top of power
supply. Place thumb or finger
under board ejector and lift up
until board pops out of re-
ceptacle at back of status
processor. Then grasp PC
board and pull straight out.
(2) Turn on switch S1 on power
supply. Depress TRANS-
MITTER RESYNC switch
S2. Wait about 5 minutes for
system to stabilize. Turn
Mode switch to TEST/RESET
and then to SECURE.
w.
Connect positive meter lead to J8-11
and negative meter lead to chassis.
If meter indicates less than 1 vdc,
replace PC board A7.
(1) To remove PC board A7, turn off
switch S1 on top of power
supply. Place thumb or finter
under board ejector and lift up
until board pops out of re-
ceptacle at back of status
processor. Then grasp PC
board and pull straight out.
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