So, I was fixing my power supply, changing out the MC1723 IC. Put a new chip in, hooked it all up, and turned it on. I get a hum and an error 7.

FFF$@&!

So I immediately turn it off, unplug all of the connections except cabinet to power supply. My 5V is reading 20.67VDC and then C12 exploded. Quite loud I might add.

Upon close inspection, there's a speck of solder bridging two terminals on the IC. I fixed it and a new C12 and the power supply is now producing 5.05V.

However, I now have an error 7 on the main board. How much did I wreck by sending ~21VDC to the 5V line?

ugh...

Yeah, i'm in for some soldering.... This is really ugly. About 90% so far are 7vdc

Thanks, I was just going to ask what to replace first in case I got lucky.

So, I finally brought myself to change out the eeprom to see how bad it was. I was dreading having to change out all of the ICs, even though I had them on hand.

AND IT BOOTED!

Everything worked. Somehow I got really really really lucky and only toasted the eeprom.

Thanks for the help guys. I got lucky this time, but never again i'm sure.