Its easy, I have a Sony projection as well. Remove the speaker covers, they should just pull off. use a flathead screwdriver if needed, there should be 2-4 screws holding the screen suport, once removed lift up and pull out. I used a vaccum with a hose, and brush. You should clean the mirror, and projection lenses, with a soft clean cloth, and a non streak cleaner, while you have it apart for a brighter and clearer picture. Once done, line the screen suport with the frame and slide back into place, and reassemble the screws and speaker covers and your done. Hope this will help you.

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