ATN ATN PS28, Operator'S Manual

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3-10
3.2. TROUBLESHOOTING
3.2.1. GENERAL
This section contains information for locating and removal most of
the PS28 operating troubles which may occur. Each malfunction for
an individual component or assembly is followed by a list of tests or
inspections that will help determine probable causes and corrective
action to take. Perform the tests/ inspections and corrective actions
in the order listed.
This manual cannot list all possible malfunctions that may occur, or
all tests or inspections and corrective actions. If a malfunction is not
listed (except when malfunction and cause are obvious), or is not
corrected by listed corrective actions, contact to the service center.
3.2.2. TROUBLESHOOTING PROCEDURES
Troubleshooting procedures are listed in Table 3-2.
TABLE 3-2. TROUBLESHOOTING PROCEDURES
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
S i g h t w i l l n o t
come on.
Battery is missing or
improperly installed.
Insert battery or install cor-
rectly.
Battery is dead. Replace battery.
Battery contact surfac-
es or contact springs
dirty or corroded.
Clean the contact surfaces
with a pencil eraser and/or
alcohol and cotton swabs.
Defective image tube.
Send the sight to the ser-
vice center.
Cannot achieve
the sharp image
of the object.
Objective and output
lenses dirty.
Clean thoroughly the lenses
surfaces.
S i g h t a f f e c t s
boresight after
i n s t a l l at i o n or
during the firing.
Objective lens loose.
Screw objective lens up
to the stop. Apply a small
amount of thread locker on
threads, install three screws
M2.5x3 and tighten.
Factory alignment bro-
ken.
Send the sight to the ser-
vice center.