SOURCE: White dots appearing on Samsung TV screen and multipling each day
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.
SOURCE: I have White and black
I developed white spots on the screen of my Mitsubishi WD-57734 in increasing numbers over days and weeks. I called a repair service who quoted me $1500 to replace the light engine. He suggested I call Mitsubishi Customer relations at 800-332-2119 option 5 which i did. To make a long story short after several conversations with them they agreed to replace the part for free if I picked up the labor (Would have been less conversations if I had the original purchase receipt). Instead of $1500 I paid $250. The tv was only 3.5 years old. Perseverance paid off.
SOURCE: White "press dot" screen
The actual answer is to press the dots, but use a dull plastic tool that fits "within" the dot. Otherwise the width of your finger is too imprecise to calibrate the dots and screen.
Hope you, and others, get this and try it. It works. I just discovered it and did it, successfully after only about 10 presses.
SOURCE: How do you fix dead pixels on a 65 inch Mitsubishi tv?
most likely if model listed is correct live with it----optical light engine would have to be replaced which is major parts and labor cost.
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