Xmint
Member
Why is there a white or even blue-purple patch on the projection screen? A white or even blue-violet plaque will appear on the projection screen, indicating that the red polarizer in the internal optical system of the projector is damaged, so that the image projected by the projector will appear color cast. The solution to this problem is to replace it A new red polarizer.
However, this red polarizer replacement operation requires opening the projector's casing. However, due to the high voltage inside the projector, it may cause harm to people's bodies, so you'd better ask professional maintenance personnel to replace the red polarizer. You can also send the projector to a repair shop for replacement.
However, this red polarizer replacement operation requires opening the projector's casing. However, due to the high voltage inside the projector, it may cause harm to people's bodies, so you'd better ask professional maintenance personnel to replace the red polarizer. You can also send the projector to a repair shop for replacement.
