Grounding problems

wadeaminute · Post by **wadeaminute** » Wed May 08, 2013 4:18 pm

I just rewired my JR Super-Sonic. It has two humbuckers - a Dimarzio YJM strat-sized 4 wire stack and a a GFS Mini Crunchy (4 wire). I wired it with a volume and tone and a 3-way. And a momentary. It works just fine except for what I assume is a grounding issue. It buzzes / hums when plugged in if I am not touching the strings or any metal parts. If I turn down the volume or tone the buzz goes away. No wires are loose. All wires are in place as per a Seymour Duncan wiring diagram. The ground wire from the cut-off tele bridge goes to the tone pot.

Ideas?

Thanks in advance

cur · Post by **cur** » Wed May 08, 2013 4:30 pm

Is the bridge grounded? That is the usual problem. check continuity

Dillon · Post by **Dillon** » Wed May 08, 2013 4:49 pm

If it's not what cur said then you have a bad ground somewhere. Can you give us more details on how you wired it? Post a picture of the wiring, or draw a diagram, if you can. DiMarzio wire colors are typically not the same as SD wire colors so there might be something wrong there. I think the GFS is the same though. Does the noise occur in all positions? And is the pickup cavity shielded at all?

Thomas · Post by **Thomas** » Wed May 08, 2013 11:41 pm

If you're like me, the pick guard might need some extra shielding. I am a static filled mother fucker.

DGNR8 · Post by **DGNR8** » Thu May 09, 2013 12:41 am

Any pics?

wadeaminute · Post by **wadeaminute** » Thu May 09, 2013 12:48 am

Pickguard is shielded.

I used this diagram. The pickup codes were sorted out properly.

SD wiring diagram

I took it to a tech today, and his meter says that I did everything right, grounding wise. He says that this sort of minor hum is normal and no big deal.

I also tried putting a brand new switchcraft jack on the guitar. No change.