TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
NOTE
Troubleshooting procedures listed in table 5-2 may require more than one person to perform corrective
action.
Covers should be removed as necessary to perform troubleshooting procedures.
Never disconnect a wire without first marking that wire to assure proper reconnection.
Table 5-2. Troubleshooting Procedures
Trouble
Probable cause
Corrective action
1.
Constant alarm
a.
Bad intrusion or
a
Open CU door and pull TAS plunger
tamper circuits.
all the way out. Note which light
emitting diode (LED) is lighted. If
the only LED lighted is for sensor
monitoring entrance, secure en-
trance. Turn mode switch to SE-
CURE and then to TEST/RESET.
NOTE
If motion sensors are used
near CU, remain motion-
less to avoid setting off false
alarms.
The audible signal device will nor-
mally stop sounding 10+ 2 seconds
after CU has been reset. If the audi-
ble signal device continues to sound
and there are no LED’s lighted, this
indicates a tamper alarm. If an LED
is lighted, it will indicate which sen-
sor or group of sensors has been
activated. LED’s A through E indi-
cate intrusion alarms, and LED F
indicates a duress alarm (Latching
Alarm Switch).
b.
Turn mode switch to SECURE and
then to TEST/RESET. Set multi-
meter to dc volts. Connect positive
meter lead to TP1 (brown), and neg-
ative lead to chassis (ground). Note
meter indication. Connect positive
meter lead to TP2 (red), and nega-
tive lead to chassis (ground). Note
meter indication. Repeat these steps
5-8
