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Re: Numerous white spots on my samsung dlp 56in HDTV
DMd Moduel may have bad IC causing this ,but it could also be the optics unit block /Light Engine.
Samsung Parts 1-800-627-4368
PTS rebuilts boards and Parts and Light Engines 1-800-844-7871
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This repair is not free of charge, you will need the DMD chip replaced. Try this site for the part# & price & availability: http://www.shopjimmy.com/dlp-chips/
you will need your complete model number for the correct part#
Replace the DLP chip at cost between $160-$300 for the part and about two hours of your own time to do it. http://www.shopjimmy.com/samsung-mitsubishi-toshiba-4719-001997-dlp-chip.htm/
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.
Once before I had this same problem and FixYa gave me the solution. When you replace the lamp door, there is a switch inside so be sure the door is put in at an angle so to hold the switch up. It solved my problem after numerous repairmen missed it.
If the white spots are appearing in different spots or "Moving" it is the DMD board beginning to fail. Samsung DLPs seem to have a lot of DMD board failures. I would expect it to completely fail in the next couple months.
If there are only a couple small white spots that never go away it could be a mirror that is seized on the chip, but it's far more likely that the DMD board is going bad.
If these spots are small, they are likely the visual effect of a failing DLP chip. When some of the tiny mirrored surfaces on the chip stop moving, this is the result. This is not something you can fix yourself. A Samsung authorized service center will charge $400-$500 to replace it for you.
Worked a charm on my 50" Samsung DLP. Read thread carefully as there are 2 different version of the DMD chip you will need to replace. I ended up fixing mine for less than $165!
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