We have Hitachi LCD projectors, after power ON the projector, after few seconds later, This pinkish shade begins and increasin

[hepsi.ee915]

We have Hitachi LCD projectors, after power ON the projector, after few seconds later, pinkish shade begins and increasing to this limit. What are the reason behind it and how can it be rectified?

 

[Lutfij]

You can look through this thread.

Is the issue across any video output source connected to the projector?