Hi, I bought a used Ibanez SR300DX and used it for a while. My pots are kinda wonky and I lost signal a couple of times. Since I'm planning to do a couple of live gigs, that can't happen and I was wondering if I should just get new electronics and pots just in case. How are pots related to the electronics and what kind should I use. It's an active preamp with p, j, tone and phat bass knobs. I can't see the ohms on all of the pots, I guess they aren't all the same?