TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-4MI-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)
lock. Slip switch arm over switch
shaft. Ensure that arm is aligned
with tang on switch stop. Place
large hex nut inside switch mount-
ing bracket; slip bracket over lock.
Engage switch shaft in lock. Tight-
en nut to secure switch.
o.
If meter indicates 0 ohms, inspect wires
from S3, terminal 3-3 and terminal 3-1
to J12/P1, pin 33, and from J12/P1, pin
33 to J10-4 for loose or broken connec-
tions. Resolder any bad connections on
P1.
p.
If meter indicates 0 ohms from S3, termi-
nal 3-4 to J10-4, connect meter leads to
J10-5 and power supply TB2-5.
q.
If meter indicates 0 ohms, replace PC
board A10.
To install new PC board A10, turn
board so plastic ejector is toward top.
top. Align board with guides at
top and bottom of status proces-
sor. Slide board straight in until
it contacts receptacle at back of
processor. Then press firmly on
board until it seats completely in
receptacle.
r.
If meter indicates more than 100, 000
ohms, inspect wires from S3, terminal
3-4 to J12/P1, pin 28, and from J12/P1,
pin 28 to J10-5. Resolder any bad con-
nections on P1.
s.
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.
g.Bad mode
a.
Turn mode switch to TEST/RESET. Set
switch S3.
multimeter to dc volts. Connect positive
lead to mode switch S3, terminal 2-2, and
5-33
