Question about Optoma Office Equipment & Supplies
If you hear a high-pitched whir, you have a ballast problem. if you don't hear it, you have a colorwheel problem.
Posted on Nov 16, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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