There are no real workarounds for this problem, the board is best to be replaced. However, since you are more than capable of getting into the tv and finding the board, I am positive you can change it yourself. You will not need Samsung to repair it for you, you can just order the part yourself.
The part runs about $30 and is part number BN96-04809D. I would recommend http://www.encompassparts.com/ or http://www.shopjimmy.com/ to order it.
If you would like any additional information or have more questions please don't hesitate to ask!Please remember to press the ACCEPT button when we are finished, it is the only way I can get credit for helping you. I want you to be 100% satisfied so please, by all means ask any questions you might have on this subject. Positive feedback is always appreciated.Thank you,Tim Nolan
The number at the end doesnt matter, both of those are the same part so you will be good to go with that one.