My house was struck by lightening a few months back. Fortunatly, insurance did replace the system, but I wanted to see if I could fix the broken one.
I used the Ifixit PS3 Slim teardown to take the system completely aprat. I was hoping that maybe it would be a power supply or AC connector that went bad. however, the lightening seemed to travel through the network cable and went to town on the board leaving the PS3 nothing but a big pile of garbage. I was able to take the HDD out though and format it so it will be a nice 120GB replacment if I ever need it.
I still attempted to put the system back together even though it was trashed. I would advise labeling the screws, I had two extra silver screws at the end but it wasn't a big deal being that I am going to throw the system away.