TM 5-6350-264-14&P-9
NAVELEX EE 181-AA-OMI-100/E121 DZ-204
T.O. 31S9-2FSS9-1-9
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
3. (Cont)
h. (Cont)
b. If meter indicates less than 21 vdc, replace battery.
(1) To remove battery, disconnect battery wires
from battery. Remove screw and washer
from battery clamp bracket and remove
battery.
(2) To install new battery, position battery and
battery clamp bracket. Install screw and
washer. Connect battery wires to battery.
4. Low
a. Defective
a. Interrupt ac power from Control Unit. Set multi-
Audible
battery.
meter to dc volts. Connect positive meter lead to
Alarm
red battery terminal and negative meter lead to
sound
black battery terminal. Ensure that power
level.
switch S3 is set to POWER ON. Meter should
indicate 21 vdc or more.
b. If meter indicates less than 21 vdc, replace
battery.
(1) To remove battery, disconnect battery
wires from battery. Remove screw and
washer from battery clamp bracket and
remove battery.
(2) To install new battery, position battery and
battery clamp bracket. Install screw and
washer. Connect battery wires to battery.
b. Defective
a. Set multimeter to ac volts. Connect leads to
power trans-
TB3-1(+) and TB3-2(-).
former T1.
b. If meter indicates less than 60 vac, replace defec-
tive power transformer.
(1) To remove transformer, note length and con-
nection location of transformer wires. Dis-
connect wires. Remove mounting screws
and washers. Connect transformer wires.
(2) To install new transformer, cut transformer
wires to proper length and install crimp
terminals. Position transformer on inner
enclosure and install mounting screws and
washers. Connect transformer wires.
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