4-5
4.2. TROUBLESHOOTING
4.2.1. GENERAL
This section contains information for locating and removal most of
the Mars operating troubles which may occur. Each malfunction of
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.
4.2.2. TROUBLESHOOTING PROCEDURES
Troubleshooting procedures are listed in Table 4-2.
TABLE 4-2. TROUBLESHOOTING PROCEDURES
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Scope does not
switch on.
Battery is missing or
improperly installed.
Insert battery or install cor-
rectly.
Battery is dead. Replace batter y.
B at t er y c o ntac t s ur f ac -
es or contact springs
are dirty or corroded.
Clean the contact surfaces
with a pencil eraser and/or
alcohol and cotton swabs.
Defective image tube.
Send the scope to the ser-
vice center.
Cannot achieve
the sharp image
of the object.
Objective and output
lenses are dirty.
Clean thoroughly the lenses
surfaces.
Damag ed opti cal c om-
ponents.
Send the scope to the ser-
vice center.
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