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8. TROUBLESHOOTING
Problem Probable reasons Possible solutions
There is no
luminescence of
image intensifier
screen
Power supply is
discharged
Check the battery
charge with battery
control module.
Replace or recharge
the battery if
needed.
Area image is
blurred and faint
The optics is dirty or
covered with moisture
Wipe the eyepiece
and objective
surfaces with
napkin.
Black spots of
faults and
damages,
impeding the
confident sight
work, appeared
in the field of
view
Image intensifier is
damaged by aiming at
light source or turning
the unit on in a
daytime
Send the unit to an
authorized service
centre
There is no
aiming marks
fluorescence,
when hand wheel
“…” is set on the
maximum
brightness and
the ON/OFF
switch is in the
position ON
1 The power supply is
discharged
2 Emissive diode VD1
is defective (figure 1)
1 Check the battery
charge with battery
control module.
Replace or recharge
the battery if
needed.
2 Send the unit to
an authorized
service centre