Hey all...need some help...
New project guitar build. 'Moved' my Ibanez RG550 into a new body. Full set of DiMarzios I've had forever, in perfect shape before the move.
Two issues:
First is a ground hum I cannot locate the source of. Been through five switches, two jacks, two volume pots, and redid the lead extensions on the neck pickup from scratch (clean job if I do say so myself). This ground hum is quite the mystery, as it comes in different 'forms' depending on where I am (shop vs. home). At the shop, it's only present in the full neck position on the switch. At home, it's there in all five positions. I've run it thtough two different cables and three different rigs - same thing. Before anyone says there's something wrong with my home electrical system, my other Ibanez displays no hum. Three different techs have been over this thing, and no one can figure it out. Only thing I havent done yet is change the tone pot, and redo the lead extensions on the bridge pickup. It 'should' not be in either of the pickups themselves...one go around on the wiring with a different switch had no hum, byt the switch itself was noisy as hell, so it went in the trash. I'm out of ideas. Anyone???
Second is even stranger...the switch itself is 'live'. Never seen anything like this in 25 years crawling around inside guitars. You know that sound a pickup makes when you tap a pole piece with a screwdriver when you're checking to see if it's hooked up right? The heads of the switch mounting screws on top of the body make the same sound when you touch them - with a FINGER! Can be heard no matter what position the switch is in. WTF?
Anyone have any ideas on any of this and I'd be greatly appreciative. The guitar has come together magnificently, but is now driving me to jump off a bridge. Please help!
G