That power outlet is almost certainly just connected to the mains input circuirty and doesn't sepend on the rest of the PSU working. Brefore you go any further, I think you could check that the PSU outputs really are dead (all of the? Just some?) using a voltmeter. The hard part of doinf this is that fidning out what the various ouptu wires actually are. If possible, replace the guts of the machine with a dummy load (6V and 12V bulbs) just in case a short in the rest of the machine shutting everything down. I doubt i,though. That depends on what is wrong with it... You're not going to get schematics, so oyu are verymuch on your own. And remember there are lethal voltags (like 350V DC with a high current availability) in there, and that much of th circuitry is most likely driectly connected to the mains How I'd attack this would be to open up the PSU and find/check the mains input rectifier, maisn smoothing capacitors, chopper transistor(s) (If that's failed, I then expect a lot of work), and the startup resistor. But even fidning those cna be non-triivial if you've not worked on PSUs before. -tony

I opened it up and looked around. Nothing looked out of the ordinary, except when I turned it on and let it sit for a second I saw some tiny sparks next to the solder pad of a diode and then another just half way