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)
f.
(Cont)
supply, TB2-3. Meter should indi-
cate 20 1 vdc. Connect positive
lead to TB2-5. Meter should indi-
cate 5 0.25 vdc. Connect positive
leads to TB2-2. Meter should indi-
cate 28 2 vdc. Turn mode switch
to TEST/RESET and then to
SECURE.
f.
If meter indicates 5 +0.25 vdc at
S3, terminal 3-2, remove leads
and set multimeter to ohms. Re-
move PC board A10.
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 recep-
tacle at back of status proces-
sor. Then grasp PC board and
pull straight out.
g.
Connect meter leads to S3, terminal
3-4, and J10-11.
h.
If meter indicates more than
100, 000 ohms, inspect wires from
S3, terminal 3-4 to J12/P1, pin 32,
and from J12/P1, pin 32 to J10-11
for loose or broken connections. Re-
solder any bad connections on P1.
i.
If meter indicates 0 ohms, connect
leads to J10-R and power supply
TB4-1.
j.
If meter indicates more than
100, 000 ohms, inspect wires from
J10-R to J12/P1, pin 30, and from
J12/P1, pin 30 to TB4-1 for loose
or broken connections. Resolder
any bad connections on P1.
k.
If meter indicates 0 ohms, connect
leads to S3, terminal 3-4 and J10-4.
Turn mode switch S3 to SECURE
and then to ACCESS.
5-31
