I am a 60 yr old guy that is working on a Yamaha AX-900 that fried when my son had beer or some type of alcohol spilled on it at college. I'm down to it only frying one resistor when I turn it on. I think I know which cap is shorted and causing it. I also have a Nakamichi upstairs that I need to fix. I'm a mechanic by trade but this is the first time I've opened up audio equipment. I'm here to learn. Thanks!