Repairing and Fixing Game Consoles and other paraphernalia

[retrolinkx]

Have you guys ever taken apart a console, or controller to fix it/clean it before?

I remember about 6 months ago I took apart my Dreamcast to clean it out and fix it as it had this problem of always restarting half way through a game.

I watched a video online and found out how to do it, luckily I didn't mess it up and it worked fine.

I also have the intention to clean the controller as well, but I'm waiting on someone I know to do a video before I attempt to do it.

So any of you guys repair some consoles, or other paraphernalia?