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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 5-2. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
1.
(Cont)
b.
(Cont)
back, and insert screws from the
front. Tighten screws to secure
switch.
d.
If meter indications are correct, pull TAS
plunger all the way out. Connect meter
leads to J7-4 and J7-7. Meter should indi-
cate 0 ohms.
e.
If meter indicates over 100,000 ohms, in-
spect J12/P1, pins 18 and 19 for broken or
loose wires. Resolder any bad connections
on P1.
f.
If meter indicates 0 ohms at J7-4 and J7-7,
connect a jumper wire on power supply
from TB4-3 to TB4-2. Connect meter leads
to J7-1 and 14. Meter should indicate
0 ohms.
g.
If meter indicates 0 ohms, replace PC board
A7.
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 contacts receptacle
at back of processor. Then press
firmly on board until it seats com-
pletely in receptacle.
h.
If meter indicates over 100,000 ohms at J7-1
and 14, connect meter leads to J7-14 and
TB4-3 on power supply. Meter should indi-
cate 0 ohms.
i.
If meter indicates over 100,000 ohms, inspect
J12/P1, pin 17 for broken or loose connec-
tions. Resolder any bad connections on P1.
j.
Connect meter leads to J7-1 and TB4-2 in
power supply. Meter should indicate 0 ohms.
k.
If meter indicates over 100,000 ohms, inspect
J12/P1, pin 34 for broken or loose connec-
tions. Resolder any bad connections at
P1, pin 34.
5-17
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