Question about Samsung HLN567W 56" Rear Projection HDTV

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Samsung 61 after 20 mins turns off not a cooling problem checked

Tv runs fine then boom. took off both backing pieces,put a dual house fan behind bulb and dmd board and tv about 5 feet from wall.got peice of tape to hold down blue switch next to bulb bracket.

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It could be a issue with the ballast try to check if you have a buzzing sound. if it does is most likely a issue with the ballast (only if sound cames near the lamp) you can check that just follow the cables that are connected to the lamp, take out the back cover of tv, and keep pushing the switch cover (if not tv will not turn ON). and check if that sound comes from the only board connected to lamp. if it does, you are going to need a ballast.

Posted on Jun 25, 2009

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Posted on Jan 02, 2017

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I had the same problem. I deducted that if my TV worked fine for an hour or so and then the colors became bad (green, people's faces purple...), it must be a overheating problem. Simple logic, right? So, I picked up a few tools and a small vaccum and went to work.
I went first for the main source of heat: The lamp. Just a few screws, and I removed it. The lamp cage has a fine screen to prevent the dust to cover the lamp. Mine was covered with dust! And the fan behind the lamp was also covered with dust! Bingo!!! That's my problem! I cleaned everything and vaccumed all the air vents on the the back of the TV. I put the lamp back and checked that the fan was working. The TV works like new since!
Before you are out of a TV for days and spend an arm and a leg for a "Technician" to fix it (replacing expensive parts that didn't need to be replaced in the first place), try what I described above first. It's very simple and it takes only 15 minutes.
Since my TV is 2 1/2 years old, I purchased a replacement lamp. I know that one of these days it will burn out. I'll be ready and my TV will be working again in 15 minutes!
Since my problem was solved, I didn't go to the next step. There must be one or two other cooling fans inside the TV, but they must be working...
Good luck,
alecoz@roadrunner.com

Oct 06, 2008 | Mitsubishi WD-62827 62" Television

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