There are reasons why. For example as a TV tech you don't share manuals you pay for. Look at http://www.samsungparts.com/Products/Parts_and_Accessories/PID-SM-UN46C7000WF.aspx so while that's 12 bucks, it's also copyrighted so you won't find it for free and all the techs I know will not start work on a dead set until the service manual is handy.
There are some techs that dive in and will take a chance so here you are. Your move as to what to do next.
it won't turn on

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