Re: Noisy J Customs need some advice
Not too familiar with HSH guitars?
It's a single coil, expect it to have 10 times the ambient noise of a humbucker, and 5 times on 2 and 4 in split.
The guitars are not proto anything, they're straight production. You do not need a wiring diagram, you're looking at it when you take the cover off.
Nothing I ever bought from Hong Seng had clean pots. 10 years of humidity and electronics don't mix. Turn the volume knob, 100 times if it takes it, it'll clean up a little each time. If it doesn't, next step is pot cleaner, spray and spin. If that doesn't work, put a soldering iron on the pot and heat it up, spin to try and clear it. Last resort replace with the same pots you have, or modify with aftermarket at your choice.