You need spare parts. All TV techs I know want the service manual (about 12 bucks here at www.samsungparts.com ) and then work that using gear like Oscilloscopes ($$$ to $$$$$$) and Volt meters ($$).
If you were expecting to fix it for free, I have yet to find such a fix today.
More at http://www.shopjimmy.com/tv-repair-tips
PS. I've yet to see any TV repair folk visit here so this information is to help those that do their own repairs.
My Samsung ln52a750r1fxza TV, as soon as I turn it on it turns itself off. It shows a fuzzy screen for less than 1 sec.. I have disconnect any and all other equipment from it and it does it.
Please help I can not afford another one.
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