4-4
4.2. TROUBLESHOOTING
4.2.1. GENERAL
This section contains information for locating and removal most
of the OTS 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 cor-
rective 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.
4.2.2. TROUBLESHOOTING PROCEDURES
Troubleshooting procedures are listed in Table 4-2.
Table 4-2. Troubleshooting Procedures
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Image is absent
Battery is missing or
improperly installed.
Insert battery or install
correctly.
Battery is dead.
Replace battery.
Battery contact
surfaces or contact
springs dirty or cor-
roded.
Clean the contact surfaces
with a pencil eraser and/or
alcohol and cotton swabs.
Cannot achieve
the sharp image
of the object.
Objective and output
lenses dirty.
Clean thoroughly the lenses
surfaces.
Damaged optical
components.
Send the sight to the service
center.
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