Question about BenQ MP720p Multimedia Projector

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Hello. 2 days ago my benq mp720p started flickering slightly in brightness. Additionally an audible high pitched constant whine is present. I thought might be a fan or dust build up so I removed the covers, removed the bulb, and used pressurized dust remover in the fans. Once reassembled, I stopped each fan to find that the noise wasn't from the fans. I can't tell where it's coming from but the noise ceases immediately on power off and isn't present during fan cool down. Any thoughts?

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What you hearing is not the fans indeed your hearing that coming from the 3 speed color wheel inside, Rather expensive if you had to replace. This would also be the issue with the flickering!! So keep that in mind, This color wheel if stopped will shut down the unit or at least should, so it sounds to me your projector is reaching its prime you might want to have it serviced before the color wheel does go out.

Hope this helps, please do click the accept button for the effort.

Posted on Sep 03, 2010

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