Depends on what died. At the minimum you'll need a soldering iron, and probably some new caps, fuses, and possibly the right FETs.
Almost always not worth doing.
Also remember that there's upwards of 300V in there, which is not a good thing to get in the way of. Unless you really know your way around electronics, I strongly suggest not opening it.
Mains voltage electricity can seriously harm or kill you. I don't suggest messing with it to save ~$40.