[and13l]

Hi, I am having gradation issue, it started about half a year ago, slightly on a very bright spots, now it can be visible on a blue colors, and I have the impression that is slowly increases. Cables and connections are ok I have double checked...Is this is related to some cold solder joint or DLP chip start getting old?
Thank You in advance

 

[rekbones]

You have a problem with the color wheel. Bearings most likely are failing and its getting out of sync.

 

[and13l]

You have a problem with the color wheel. Bearings most likely are failing and its getting out of sync.

I have just installed new one, and everything is back to norma, Thank You