Eltigro

It's a great feeling to get a dead console working again

Jass, from what I've seen, 90% of the time if your Master System is getting no power, it's because someone put the wrong AC Adapter in it and blew that 7805 voltage regulator. Got a SMS from Goodwill that was DOA, replaced it and it's running perfect. (Had a little trouble with the channel select switch, but it seems to be working fine now.) Only thing I can't test is the card slot as I have no card games.

Ans they're cheap, too. You can get like 10 of them for a dollar.