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
9.
(Cont)
c.
(Cont)
(3) Turn on switch S1 on power sup-
ply. Depress TRANSMITTER
RESYNC switch S2. Wait
about 5 minutes for system to
stabilize. During 5-minute sta-
bilization period, check power
supply. Set multimeter to dc
volts and connect negative lead
to chassis (ground). Connect
positive lead to power supply,
TB2-3. Meter should indicate
20 +1 vdc. Connect positive
lead to TB2-5. Meter should
indicate 5 +0.25 vdc. Connect
lead to TB2-2. Meter should
indicate 28 +2 vdc. Turn mode
switch to TEST/RESET and
then to SECURE.
e.
Reconnect Data Transmitter or Monitor
Cabinet wires to TB6 and TB7.
10. Improper
a.
Battery bad
If facility ac power is off for 12 to 24
battery
or dis-
hours, set multimeter to dc volts.
operation.
charged.
Connect leads to battery terminals,
positive to red and negative to
black. If meter indicates less than
21 vdc, replace battery.
(1) To remove battery, turn off switch
S1 on power supply. Discon-
nect wires from battery termi-
nals. As battery is heavy, care-
fully lift and turn to remove
it from bottom of enclosure.
(2) To install new battery, position it
outside CU enclosure. Care-
fully insert battery, end first,
turn and lower it into bottom
of CU enclosure. Connect
wires to battery terminals.
Turn on switch S1 on power
supply. Connect meter leads
to battery terminals. Meter
should indicate 28 ±2 vdc. De-
press TRANSMITTER RESYNC
5-118
