Possible cause
Calibration is required.
Solution
Carry out calibration according to Calibration Modesection.
Black screen after calibration
Solution
If the image does not clear after calibration, you need to recalibrate.
Colored lines appeared on display or image
has disappeared
Possible cause
The device was exposed to static electricity during operation.
Solution
After exposure to static electricity, the device may either reboot
automatically, or require turning off and on again.
The image is too dark
Possible cause
Brightness or contrast level is too low.
Solution
Adjust the brightness or contrast level in the Quick Menu.
Poor image quality / Detection range reduced
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