NAVELEX EE 181-AA-OMI-100/E121 DZ-204
T. O. 31S9-2FSS9-1-9
moisture, and bits of wire or solder
inside the housings.
Touchup paint is recommended instead
of refinishing whenever practical.
Inspect all metal surfaces intended
to be painted for condition of finish
and legibility of panel lettering.
HIGH VOLTAGE is used in the operation of
this equipment DEATH ON CONTACT may
result if personnel fail to observe safety
precautions Learn the areas containing high
voltage in the equipment. Be careful not to
installing or operating this equipment Never
work on electronic equipment unless there is
another person nearby who is familiar with the
hazards of the equipment and is competent in
administering first aid.
Power to the J-SIID system must be shut down
before any repairs or replacements can be
performed on the Audible Alarm.
The Audible Alarm presents a noise hazard to
personnel in the area The noise level exceeds
the allowable limits for unprotected personnel.
Authorized ear protective equipment must be
worn by all personnel in the work area Before
any troubleshooting procedures are at
tempted the Audible Alarm must be
troubleshooting on the Audible Alarm, ensure
that test points and terminals are never
grounded or shorted to each other or to the
chassis This will cause serious damage to the
When taking measurements with a multimeter,
ensure that the meter is set to the proper scale
and range before inserting probes into the
maintenance or troubleshooting, notify proper
procedures Enter the Control Unit area and turn
the operating mode switch (key operated) to
TEST/RESET position If the audible signal
device in the CU sounds, ignore it for a moment.
Inspect the Control Unit door to ensure that it is
flat, straight, and completely closed.
the door, pull the Tamper Alarm Switch (TAS)
plunger all the way out, and ensure that there is
no debris between the door and enclosure.
There are six Light Emitting Diodes (LEDs) on
PC board A12 in the upper right corner of the
Control Unit Note any of these LEDs that are
on Any LED that is on indicates a sensor that
has been activated and should be investigated
before troubleshooting the Audible Alarm.