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Hello, Sorry you're having problems. Yes, the white dots are caused by a failing DLP chip in the set - and this needs to be replaced to fix the issue. If you're looking to repair this yourself, you can purchase the chip at the link below for your set:
For detailed instructions on how to replace the chip, there is a video posted at the link below by Shop Jimmy that outlines this repair if you're looking to do it yourself:
Chip is around $185, and the repair should take roughly between 30-40 minutes depending on your comfort level removing the back of the set, and the DMD board to access and replace the chip. It's also very important to be very careful with the chip as it's fragile and must be aligned carefully on the board.
If you need further assistance let me know. Before you go, PLEASE DO click at least a 3 STAR RATING, at the top of your screen. That is how I am credited for my efforts by the site. You can follow up any time as needed at no additional cost.
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