Forward F455, Руководство пользователя

Страница: 75 / 83

by following the link .
Poor image quality / Reduced detection
distance
Possible cause
These problems may occur during observation in adverse weather
conditions (snow, rain, fog, etc.).
Image is too dark
Possible cause
Brightness or contrast level is too low.
Solution
Adjust the brightness or contrast in the Quick Menu .
Color bars appear on the display or the
image disappears
Possible cause
The device was exposed to static charges during operation.
Solution
When the exposure to static charges is over, the device may either
reboot automatically or require to be switched off and on again.
There is a clear image of the aiming mark,
but a fuzzy image of the object
Possible cause
Dust or condensation on the interior or exterior optical surfaces of the