I do I fix white dots on screen

It is not a user repairable fault. It can be repaired. Contact the authorized service center for Samsung.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

I have a Mitsubishi TV and had the same problem. There is a mirror that moves to control each pixel. When some of them fail to move you get the white dots. Google your problem and a company will come up(sorry forgot the name).,you can buy the new part from them and they have exact utube videos to help you do the repair. Took me about an hour. Part was around $150. Very rewarding feeling when you turn the tv back on with no white dots.Still dot free after two years

The DLP chip is failing. There is no way to fix this except to replace the DMD (digital mirror device) chip. Contact Mitsubishi for repair centers.

Home IPS LaserExpress

White dot for DLP Projector TV is not because of the light buy. It is caused by aging DLP chip ( DMD Chip.) Your TV DLP Part should be the following image:

Check the post how to place it diy

I have the same problem. I think we need a class action!

http://s1231.photobucket.com/upload/albums/m3231/?location=projector+spots

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.

Hi,
White dots are due to bad DMD chip and qualified tv tech can replace required DMD chip in this tv to fix the picture issue.
Please contact nearest Samsung service center or local tv repair shop for repair estimate.
Thanks.

sound like you have a bad dlp chip. this happens to a lot of samsung dlp tvs. some of the mirrors are stuck. they can appear as black dots or white dots and it usually gets worse over time.

There might be an issue either with your DMD board or your Video board, with the tv on, go to the menu, and if those white dots are still there the issue would be with your DMD board but if those dots magically don't show up on the menu, the issue would be with your Video board

If these dots are only seen when the picture is on I would look for the Optical Block to be causing it. Are the dots in the same place each time you turn it on?