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
1. (Cont)
h. Defective
a.
Set multimeter to ohms.
fuse.
b.
Remove fuse from fuse holder. Connect meter
leads to each end of fuse.
c.
If meter indicates more than 100,000 ohms,
replace fuse.
2. Nuisance
a.
Audible Alarm
Ensure that the Audible Alarm unit is mounted rigidly
alarms.
unit mounting.
to a flat surface, that the door is flat, and there is no
play when the door is locked.
b.
Defective
a.
Set the multimeter to ohms. Connect meter leads
tamper
to tamper switch terminals that have wires con-
switch.
nected.
(1) Depress the switch plunger. Meter should read
0 ohms.
(2) Release the switch plunger. Meter should read
more than 100,000 ohms.
b.
If meter indications are not correct, replace tamper
switch.
(1) To remove door tamper switch, remove tam-
per switch support mounting screws. Push
switch through outer enclosure. Tag wires
and use a soldering iron of 50 watts maxi-
mun to unsolder wires. Unscrew switch from
switch support and remove switch.
(2) To install new door tamper switch, screw
switch into switch support. Use a solder-
ing iron of 50 watts maximum to solder
wires. Position switch enclosure support
bracket and install tamper switch support
mounting screws.
(3) To remove pry-off tamper switch, remove
mounting screws from tamper switch brack-
et. Remove snap on button cap. Remove
hex nut and push switch through switch
5-17
