Question about InFocus Office Equipment & Supplies
When using my overhead projector I have multiple white dots on the screen.
Posted by Anonymous on
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Posted on Jan 02, 2017
It seems you might have an issue with the dmd board. Go to the menu, and if the dots still show on the menu, the issue definitely is with the dmd board but if they don't come up on the menu, the issue will be with the video board.
Posted on Aug 20, 2009
I have the same problem. I think we need a class action!
Posted on Dec 08, 2010
SOURCE: Help! Our Optoma DLP
There is a lense behind the main focus lense that's causing this. Flakes of the colored tint are coming off causing white light to shine through. If you look at your projection, you can see black spots as well, these being the flakes that have re-located themselves. I dug into mine deep enough to diagnose this, to actually replace the little lense would be a little tricky. The unit has to be mostly disassembled. Also I haven't been able to locate a vendor who sells the part. Optoma wants you to send it in so they can do the repair, and won't part w/ these component level parts.
Posted on Nov 20, 2011
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