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)
f. (Cont)
f.
If meter indicates 0 volts at either terminal
2 or 9, replace LATCH/NON-LATCH
switch, S5.
(1) To remove LATCH/NON-LATCH
switch, turn off switch S1 on power
supply. Remove hex nut and lock
washer from switch. Push switch
through hole in panel. Catch keyed
washer when it drops out. Cut
cable ties if necessary to pull switch
out. Tag wires and use a soldering
iron of 50 watts maximum to re-
move wires from switch terminals.
(2) To install new LATCH/NON-LATCH
switch, use a soldering iron of 50
watts maximum to connect wires to
switch terminals. Replace any
cable ties that were cut for switch
removal. Place keyed washer over
switch. Ensure that tang on washer
projects forward so it will engage
hole in panel under switch hole. In-
sert switch through hole in panel
from the rear. Place lock washer
and hex nut over threaded portion
of switch, and tighten hex nut to
secure switch.
(3) Turn on switch S1 on power supply.
Depress TRANSMITTER RESYNC
switch S2. Wait about 5 minutes
for system to stabilize. Turn mode
switch to TEST/RESET and then
to SECURE.
g.
Turn mode switch S3 to SECURE and en-
sure that no alarms are activated. Set
LATCH/NON-LATCH switch to NON-
LATCH. Set multimeter to ohms and
connect leads to TB6, terminals S1-D
and S1-DR. Meter should indicate less
than 2,000 ohms.
5-71
