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Samsung - DLP HLP4663 - Yellow blotches

TV is about 4.5 years old. This just started today "suddenly". I have massive yellow blotches everywhere. Sometimes some nice blue blotches as well. Color wheel replaced about 8 months ago (exploded) and bulb about 6 months ago. There's no hum or anything like I had just before the color wheel "blew". It's dead quiet.

Any ideas?


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