Possible cause
Brightness or contrast level is too low.
Solution
Adjust the brightness or contrast in the
.
☐
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.
☐
Fuzzy image of object
Possible cause
Dust or condensation on the interior or exterior optical surfaces of the lens.
Solution
Wipe the exterior optical surfaces with a soft cotton cloth. Dry it. Let it stand for 4 hours in
a warm room.
Possible cause
The lens will not focus.
Solution
Adjust the sharpness by rotating the lens adjuster.
☐
The display is not centred
Possible cause
The position of the digital module on the daylight optical device requires adjusting.
Summary of Contents for 78196
Page 1: ...Forward FN455 Manual ...
Page 8: ......