That black/yellow thing to the bottom left of the big electrolytic capacitor is a diode and no, it doesn’t look good. But the resistor (inductor?) on the right of the electrolytic is also in trouble. Not to mention a couple of components near the smaller electrolytic caps.
Actually, it looks like there’s a lot of oxidation on every component that got touched by that brown goop. I said before, that stuff is just glue to hold the big capacitors on the board so it’s not leakage from the capacitor. The capacitors may still be good. But I have to say, even though it may not be electrolyte, it appears to have done quite a bit of damage in this machine.
I don’t know how to clean the goop but it will definitely be necessary to do so in your case. If not, you should at least replace or clean the damaged components.
And I need to take a close look at my 730’s to keep this from happening.
Sorry to be the bringer of bad news…