Question about Toshiba 50HM67 50" HDTV
This is problem of DMD chip that generates picture/ image in this tv and DMD chip is not available separately so complete light engine will be replaced to fix this issue. It is bit costly fix.
Click Discount-Merchant link to view light engine images and they offer required light engine for $330 and local tv repairman will help you to replace it because it needs expertise and skills.
Hope these info will help you.
Posted on Sep 11, 2010
You replace the lamp and the picture came back bright and clear, then the spot appeared after a few hours, then did you replace the lamp again? or are you still using the first replacement. If it is the first replacement lamp, I would suggest you remove the lamp and inspect its lens and reflector for any signs of spotting that would cause a dark spot. Also look to see if there is another lens that the lamp shines through inside the lamp housing. Make sure you do not touch the lamp glass or any glass lens inside the lamp housing with your bare fingers. The oil from your skin can cause lens spotting or premature failure due to hot spots. You should use clean gloves when you handle the lamp. If you do happen to get something on the glass, clean it with rubbing alcohol.
Do you still have the original, if so, maybe reinstall it and see if you can make out any signs of the dark spot maybe that will give you an idea if it is the new lamp or not. Also it doesn't take much of a defect on the lamp to cause a visible affect. make sure you closely inspect the lamp module. One other thing is the light path after it leaves the projector unit, there could be an obstruction on the final mirror or back of the screen itself. Just a few more thoughts.
Let me know,if needed further assistance.
Hope i helped you.
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Posted on Sep 11, 2010
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Posted on Jan 02, 2017
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