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Troubleshooting Procedures - Continued | Up
TM-5-6350-264-14P-10 Alarm Set Control Manual | Next
Troubleshooting Procedures - Continued |
TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
1. (Cont)
e.
(Cont)
f.
If meter indicates more than 100, 000
ohms, remove PC board A9.
To remove PC board A9, 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 processor.
Then grasp PC board and pull
straight out.
g.
Turn on switch S1 on top of power
supply. Connect meter leads to J9-15
and J9-B, then to J9-18 and J9-N, then
to J9-4 and TB6, terminal S1-D, and
then to J9-B and TB6, terminal S1-DR.
h.
If meter indicates less than 2, 000 ohms
at all of these points, replace PC board
A9.
i.
If meter indicates more than 100, 000
ohms at J9-4 and TB6, terminal S1-D,
or J9-B and TB6, terminal S1-DR, in-
spect J12/P1 pins 29 and 44 for loose
or broken wires. Resolder any bad
connections on P1.
j.
If meter indicates more than 100, 000
ohms at J9-15 and J9-B, or J9-18 and
J9-N, replace PC board A10.
(1)
To remove PC board A9 or 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 receptacle
at back of status processor. Then
grasp PC board and pull straight
out.
(2)
To install new PC board A9 or A10,
turn board so plastic ejector is
toward top. Align board with
guides at top and bottom of status
processor. Slide board straight in
5-27
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