Rainbow smudge artifact on Pro8200
I have a ViewSonic PRO8200 1080p DLP Home Theatre Projector. After cleaning my house, the projector got a artifact that looked like a rainbow smudge. It is not the same as the “rainbow effect” that I read about while trying to research this problem. I thought maybe the front lens got dirty while I was cleaning, so I cleaned that with a microfiber cloth. It didn’t help. I thought maybe some dust had gotten inside and I blew compressed air into the side of the projector. Amazingly, that fixed the problem!
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