Sir, its white small dots on complete screen, like sky with stars,

projection tvs can display white dots from the dust that is on the reflector mirror your lamp shines the picture on before it is reflected onto the front screen of your tv, one must be very careful when cleaning this, may be worth a service man doing it for you

If you focus the image on a screen up close to the projector and notice small rectangular black and white spots, then you have pixel failures.

It sounds like the flashing lights of an airplane going across the sky.

Place a white piece of paper about 1000mm in front of the screen and focus the image sharply.
Choose menu, image, advanced then select color manager.
go through the color options and check if some pixels are permanently on or off (ie small dots or black) instead of a uniform colour on the screen.

The DLP chip is most likely the faulty component

if this is a DLP tv, white dots mean a light engine going bad. It will soon look like night stars in the sky.

The link to the article explains the the cause of the white syndrome none of the previous internet experts have a correct solution. I have the same problem the link to the article attached is for a Mitsubishi projector but all the chips are the same. http://www.fixyourdlp.com/2012/04/26/solve-the-mitsubishi-white-dot-problem-for-under-200/

Hi:
This is a common problem for plasma televisions.There is one part that needs replacing but you should replace both.

this a typical dlp ic failure. this device has 1 million moving mirrors and some of them are stuck. the ic will need to be replaced it will keep getting worse

hi, i am del and the problem i face is the screen appears dark with circular dots resembling stars in the sky on a dark night. images cannot be viewed and when i click there appear some horizontal lines. what could be the problem? Can you help please? Rgds del

dead pixels you need to have it looked at