Hello, my Samsung DLP tv starting showing some white spots on the screen. Its started off as just a few, however have multiplied exponentially over the past week or so. Also the tv very sporatically will shut off by itself, and will usually remain on after being turned back on?

SOURCE: samsung DLP

try this and see if it makes a difference
open the lamp door look for the blue switch(bottom left i think)
take the loose wire(blue and white) wrap it over the switch to hold it back
and while your back there make sure you dont have a lot of dust blocking the vent on the back cover

SOURCE: Numerous white spots on Smasung DLP TV

You will actually get white and black dots , the black ones are tougher to see because of the color in the background , within 2 months youre picture will be fully covered with dots....I went through the Samsung website troubleshooting flow chart , and it led me to a bad Digital Micromiror Device , or DMD board . What is actually the problem is the DMV chip connected to this board . Inside this chip are 3 million tiny mirrors ,and when they physically get stuck , they either show black or white instead of a color . Samsung will not tell me the part number of the chip , they will only offer to send a service tech to my house .

SOURCE: Numerous white spots on Smasung DLP TV

BAD LIGHT ENGINE call UED 1-800-648-6657

SOURCE: white spots on screen and growing every day

If these spots are small, they are likely the visual effect of a failing DLP chip. When some of the tiny mirrored surfaces on the chip stop moving, this is the result. This is not something you can fix yourself. A Samsung authorized service center will charge $400-$500 to replace it for you.

michtech

SOURCE: Numerous white spots on Smasung DLP TV

See link below for "field of stars" fix:

http://www.avsforum.com/avs-vb/showthread.php?t=1107926

Worked a charm on my 50" Samsung DLP. Read thread carefully as there are 2 different version of the DMD chip you will need to replace. I ended up fixing mine for less than $165!

Chuck