My guess is that it is not economical to fix as it needs new screen. Unless it's under warranty but then you would not be asking. I had an off brand tv that I sold at my Radioshack franchise year ago. I had a customer get a tv with one white pixel constantly on. I replaced it for him. When I called the mfg, they informed me that this was allowable error in the b grade displays they used in their TVs. I quit selling them and put the bad one in my Rv. Still ticked me off when I watched it
SOURCE: Mitsubishi WD-60737 will shut off on its own while
These units had problems with capacitors in the power supply and main boards. Unless you like really hard CHINESE PUZZLES you are best to leave this to a pro.
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 dots on my mitsubishi WD-73734 tv screen
Your tv is a DLP projection one. In it the image is generated by projecting light on a chip that is covered in tiny mirrors that reflect more or less the light towards the screen. In your case some of those tiny mirrors are no longer controlled - they are immobile and reflect fully the light so you get a white spot on the screen.
The DMD chip that holds the mirrors is dying and you will have to replace it. This is the only place i could find that claims to have it on stock. You can also go thru Ebay, in there you will find second-hand ones extracted from defective tv's.
It's installation is strictly a job for a person with great tv repair experience - too many thins can go wrong in there if the job is not done properly.
SOURCE: How do I repair white dots/dead pixels on my 3
You have a bad light engine. It is available at encompassparts.com for retail price of $749.10. Call 1-800-638-3328. Consumer not in business could be higher price.
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