Quoted from ForceFlow:
There's probably a slurry of WD-40 and corroded material inside the potentiometer. You'll need to take apart the can to clean it properly.
Also, wash off all the PCBs. There's no telling what sort of contaminants were left behind that might short things out. Once they are clean and dry, only then attempt to boot them, preferably first on the bench, rather than in-game.
The game itself is probably going to need a lot more cleaning before I'd even attempt applying or turning on power.
Thanks ForceFlow. I’ve just cleaned it off with alcohol and a papertowel. Not fine cleansing, but I sprayed the outside casing down and down the volume control. I’ll probably do it a second time tomorrow. And leave the game off until Sunday or Monday.
As for booting - it does. No errors with LEDs on boards, display is okay. Coins up even. However, the sound was *loud*. How I discovered this problem.
I’m presently cleaning the light boards, every mech is rusted shut - that’s the real challenge here. Bottom of cabinet is badly warped, will have to replace at some point. Transformer is quite rusty also - I’ve never tinkered with one before though. I think I will leave it alone.
To anyone else, I think this would be a parts game - and even then, not much to take. I happened to have collected a ton of cheap bad Data East boards from Allentown that were saveable - why I’m giving this a go.