Firstly make a clean for your projector DMD chips or color weel, if it still ahs whie spots, It should be dead pixels, since for the DMD chips issue. you have to replace a new DMD chips. i have DMD chips fit for Optoma EP761, it will cost USD123 with shipping
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Firstly make a clean for your projector DMD chips or color weel, if it still ahs whie spots, It should be dead pixels, since for the DMD chips issue. you have to replace a new DMD chips. i have DMD chips fit for Optoma EP761, it will cost USD123 with shipping