6-6
lists common malfunctions that you may find with your
equipment. Perform the tests, inspections, and corrective actions
in the order they appear in the table.
This table cannot list all the malfunctions that may occur, all the
tests and inspections needed to find the fault, or all the corrective
actions needed to correct the fault. If the equipment malfunction is
not listed or actions listed do not correct the fault, notify ATN or your
point of Purchase.
MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION
1 Monocular
fails to acti-
vate.
Press operation button.
Check for defective, missing or
improperly installed batteries.
Press button one
short push.
Replace batteries or
install correctly.
2 IR illumina-
tor fails to
activate.
In a dark location with system
turned on, activate IR. Visually
check IR illuminator operation;
scene should brighten.
If IR illuminator fails
to activate, refer to
higher level of main-
tenance.
3 IR indicator
fails to acti-
vate.
Visual. Refer to higher level
of maintenance.
4 Poor image
quality
Check objective lens or eye-
piece focus.
Check for fogging or dirt on
lens.
Refocus.
Clean lens surface.
If image quality is still
poor, refer to higher
level of maintenance.
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