I'm sorry to hear that you're having problems with your set.
When you say "white spots", do you mean individual pixels? The DLP units have a micromirror device that, if they get stuck, could show small white pixels. Is this what you mean? I'm not sure what would cause a 1/8th inch round spot on the inside of a DLP television.
To have the unit repaired, you'd have to get an estimate from 800-SAMSUNG. I just don't have the pricing available to me. If you'd like to get the part yourself, it may be available on www.samsungparts.com or by calling our parts department at the above number. Without being able to diagnose the unit myself, I don't know which part would fix this issue.
I have a Samsung 50inch dlp projection tv model # HLS5086WXXAA
serial# B18E3CMLA06269Y Version # PBOT The set was one and a half yrs old when white spots started to show up on the screen, it started with one ,then two, now there are more than fourty and growing every day. They are about 1/8 inch round.I would think a $1600 tv should last more than one and a half yrs before I need to spend money to have it repaired. What causes this and how much will it cost to have it repaired. Can I get the part and fix it myself. Thank You for your help