My samsung ln52a650 blew a fuse during normal operation. one second it worked the next... nothing. popped her open and couldn't find any damage/arc/flash.... exploded parts. i hear this is a common failure in these samsung tv's. the fix i've been getting is to swap the power board but i'm fully capable of fixing it if its a known part swap on the ip board.

U have all the tools and understanding basic electronic and also can do basic soldering?Yes.The tv power supply board,that the board,where the power a/c cord plug into it.Check the whole tv power supply board carefully for dying capacitors components parts.It is usally have bulges or puffing up capacitors parts indication of components capacitors parts are dying and needed replacement.Replacement for those new capacitors component parts with the same Micro ferit and the voltages of those new components capacitors parts in a higher voltages like 5 or 10 voltages higher than the old components capacitors parts u are replacing for a better heat resistance for the tv operation of the tv power supply board for later on tv use.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.