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)
f.
If meter indicates 5 ± 0.25 vdc at S3, ter-
minal 3-2, remove leads and set mul-
timeter to ohms. Remove PC board
A10.
To remove PC board A10, turn
off switch S1 on top of
power supply. Place thumb
or finger under board ejec-
tor and lift up until board
pops out of receptacle at
back of status processor.
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, ter-
minal 3-4 to J12/P1 pin 32 to
J10-11 for loose or broken connec-
tions. Resolder 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 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.
l.
If meter indicates less than 2,000 ohms
in SECURE and more than 100,000
ohms in ACCESS, and if there is a
jumper wire from S3, terminal 3-1
to terminal 3-3, replace mode switch
S3.
5-78
