Poor quality image. There is noise or ghost images of 
previous scenes or objects 
Possible cause 
Manual calibration has been performed with the lens cover open. 
Solution 
Check the Calibration Mode, close the lens cover and calibrate the device. 
 
Black screen after calibration 
Solution 
If the image does not clear after calibration, you need to recalibrate. 
 
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. 
 
The image of the object being observed is missing 
Possible cause 
You are looking through glass.