Black spot on screen

I have had this projector for a few months now and it’s okay but all of a sudden a black spot starts appearing on the left side kind of middle of the screen. It’s not there when I first turn in the projector but after three to five minutes it appears. Anyway to fix this?

この質問に回答する 同じ問題があります

この質問は役に立ちましたか?

スコア 1
コメントを追加