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)
e. (Cont)
Al through A6 and A9 and A10. Set
multimeter to ohms and connect leads
to following points:
J9-9 to J12/P1 pin 27, J12/P1 pin
27 to S3 terminal 1-4, S3 termi-
nals 1-2 and 1-3 to J12/P1 pin
6, J12/Pl pin 6 to J2 through
J6 pin 8, J9-8 to J1-8, J10-6
to J1-8, J1 through J6 pin 10
to J12/P1 pin 36, J12/P1 pin
36 to power supply TB2-3.
Meter should indicate 0 ohms.
j.
If meter does not indicate 0 ohms at any
point, inspect for broken or loose
connections. Resolder any bad con-
nections.
k.
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.
f. Bad LATCH/
a.
Turn mode switch S3 to SECURE and en-
NON-LATCH
sure that no alarms are activated. Set
switch or
LATCH/NON-LATCH switch to NON-
circuitry.
LATCH. Set multimeter to ohms and
connect leads to TB6, terminals S1-D
and S1-DR. Meter should indicate
less than 2,000 ohms.
b.
Disconnect and then reconnect wire on
TB8-F-1. Meter should indicate more
than 100,000 ohms and then return to
less than 2,000 ohms 10 +2 seconds
after wire is reconnected.
c.
If meter does not indicate more than
100,000 ohms with wire disconnected
from TB8-F-1, set meter to dc volts,
connect positive lead to LATCH/
NON-LATCH switch S5, terminal 8
(gray wire), and negative lead to chas-
sis.
5-69
