• Nothing appears on the screen.
  • The picture is blurred.
  • The contrast is not clear.
  • A picture is too dark.
  • Condition of the camera is not normal. It¡¯s too hot on the surface and there is black lines on the
  • There is an afterimage of a moving object.
  • Focus is not correct.
  • Color is not sharp.
  • The screen is flashing.