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Troubleshooting Procedures - Continued | Up
TM-5-6350-264-14P-9 Audible Alarm (AA) Model BZ-204/FSS9(V) Manual | Next
Troubleshooting Procedures - Continued |
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
2. (Cont)
b.
(Cont)
bracket. Tag wires and use a soldering iron
of 50 watts maximum to unsolder wires.
Remove pry-off tamper switch.
(4) To install new pry-off tamper switch, solder
wires and position switch in switch bracket.
Install hex nut and snap on button cap. Po-
sition switch and switch bracket on inner
enclosure mounting bracket and install
mounting screws.
c.
Intermittent
a.
Set multimeter to dc volts. Connect positive meter
continuity
lead to TB2-3 and negative meter lead to TB2-2.
between inner
and outer
b. If meter indication changes during periods of nui-
enclosures.
sance alarms to below 1 vdc, place positive meter
lead on inner enclosure and negative meter lead on
outer enclosure. Ensure good contact is made at
the outer enclosure.
c.
If meter indication drops below 0.9 vdc, turn
power switch S3 to POWER OFF. Remove P2
from J2.
d.
Set multimeter to ohms. Connect meter leads to
inner and outer enclosure.
e.
If meter indicates less than 13,000 ohms, inspect
enclosures for foreign matter, conduit contacting
both enclosures, frayed wires, leaky battery, or
any other material that will allow continuity
between enclosures.
d. Defective
a.
Set multimeter to ohms. Connect meter leads to
capacitor.
inner and outer enclosure.
b.
If meter indicates more than 13,000 ohms, tag,
remove, and isolate the yellow wires (-) from
C15 and C16.
c.
Connect leads to inner enclosure and negative ter-
minal of C15, then to inner enclosure and nega-
tive terminal of C16.
5-18
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