model #hlt6189sx-(samsung) spots all over screen some flashing on and off-do i need a lens prj assy?
cleaned mirror and projector lens
This symptom is due to a failing DLP Chip. A repair shop will charge about $500 to fix your Tv. If you are handy, you can buy and install the chip yourself for about $200. Get some idea of how here:
You can buy the chip here:
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10 Years Audio Video Repair & Setup