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I've been having some trouble with my Samsung DLP HLT4675SX. I'm pretty sure it's the color wheel since i'm getting different colors flashing. The picture is fine for about 20-30 minutes and then I get the flashing colors. Strange thing is when it really starts making the whining noise and the color gets bad, i'll go through the different color modes from the remote and it has actually has gone back to normal a couple of times trying that. Would it still be the color wheel or maybe the ballast? Also, if replacing the color wheel should I replace the housing and color wheel or just the color wheel? Any help on this would be greatly appreciated.

Hello!
Heres a sure fire way to find out, turn on your tv and set all the colors to zero... if the image stays perfect when the whinning comes up im 90% sure its a colorwheel issue!

Hope this helps

I replaced the color wheel and it works fine, for now...

GREAT! :mrgreen: let us know if anything goes wrong :roll: , heres hoping we do not hear form you again! :| (in a good way :lol: )