White spots have appeared on my tv after years of use

White spots or dots showing up on your TV's screen could be the result of a bad or damaged processor or due to some overheating occurring the summer time or cold weather temperatures during the winter time. TVs can be affected by electricity surges or spikes as electricity supplies vary throughout the year. Or power outages and brown outs and black out can also cause spots to be on the TV screen too.

You may have bad pixels. What type of TV is it?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jason_ee8f979baffc115f

most likely a problem with the optical engine. that tv is a DLP and it uses a DMD device that is made by texas instruments that has millions of tiny mirrors on the face that move independantly and the white spots are going to be stuck mirrors that are not moving. suggest calling mitsubishi customer support for possible repair accomodation. that repair depending on the labor would be around $1500.00 total parts cost is around $1100.00. mitsubishi customer support 1-800-332-2119

DLP/mirror chip is going bad. A common problem on Sammy TVs after 2-3 years. Chip is user replaceable (try samsungparts.com or ebay) for about $150-200. Sammy was (last year) repairing the DLP White Spot problem for free. You MUST talk to ECR (executive customer service) to even think about getting that consideration--forget the standard CS people. Don't know if they are still covering this out of warranty in 2010.

The projection engine have problems,it the cause.Two years tv shouldn't have this problems already.Call talk to mitsubishi,might get some help the cost of the repair.

<span id="ctl00_ctl00_MainColumn_CenterColumn_ThreadSolutions1_Repeater1_ctl00_lblSolution">DLP/mirror chip is going bad. A common problem on Sammy TVs after 2-3 years. Chip is user replaceable (try samsungparts.com or ebay) for about $150-200. Sammy was (last year) repairing the DLP White Spot problem for free. You MUST talk to ECR (executive customer service) to even think about getting that consideration--forget the standard CS people. Don't know if they are still covering this out of warranty in 2010.</span>

It's a bad pixel spot. I have a TV that has a dark spot.
Nothing you can do about it.

The DMD chip is failing. The little mirrors on it are sticking in the on position therefore always reflecting the white light from the lamp. The part number you will need is 4719-001981 and is available from the Samsung parts website. I have included a link to directly purchase the part from them. Please take a moment to rate my answer. Thanks...

http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=4719-001981&search%5Fmodel=HLS4666W

check out for the convergence ic on the convergence board that ic must be faulty and it needs replacements.there are two such stk ic that both needs to be replaced as replacing 1 ic will not solve the problem.

What causes the DMD board to go out?
No Picture, but have sound
Had a new lamp put in this morning
TV now has 2 white spots

TV - bought in 2003 for $3600.00 and only used 5 months of the year