Earth wire in hollow body

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drjones

New member
I have just installed the jimmy page wiring harness into my Epi dot. It sounds great, however I think I have neglected to ground the harness to an earth. There is a slight hum which disappears when I touch one of the pots.

I assume I need to run a wire from the back of one of the pots, but where do I attach it to on the guitar?
 
Re: Earth wire in hollow body

The earthing/grounding needs to run to the jack socket BUT that path should already exist in your harness. (Back of pot chassis, third pot leg, output cable screen, jack socket.)

QUESTION: How (and where) have you attached the bridge/tailpiece grounding wire to your harness?

Alternatively, if the bridge/tailpiece ground wire is soldered into your wiring harness, did you remember to reattach it to the bridge post?
 
Re: Earth wire in hollow body

Thats what I need to know. Where do I attach the grounding wire? How do i attach it to the bridge?

Cheers
 
Re: Earth wire in hollow body

It normally pokes into the hole for either the Stop Tail stud or the Tune-O-Matic post. The threaded insert then secures the wire into place.

Did you physically remove the original bridge grounding wire entirely, cut the wire or desolder it from the pots?
 
Re: Earth wire in hollow body

There was a grounding wire when I installed the harness, but I have no idea where it is attached too, I think it fell back into the guitar while I was putting the electronics back in through the F holes. I cant find it, and was hoping there was another way I could ground the guitar, without pulling out the electronics and starting again. I was hoping I could remove the bridge and thread a wire through and clamp it down when I screwed the bridge studs back in. I tried that but the wire wouldn't thread through. So I am all out of ideas.
 
Re: Earth wire in hollow body

Sorry but I cannot think of any short cuts either. The last time I had to perform this task on a semi-solid guitar, it was a Gibson ES Artist. That model had a removable plastic plate on the rear, over the controls area.
 
Re: Earth wire in hollow body

drjones said:
I was hoping I could remove the bridge and thread a wire through and clamp it down when I screwed the bridge studs back in. I tried that but the wire wouldn't thread through. So I am all out of ideas.
Click to expand...

Can you pull up one of the pieces that the bridge posts screw into? A lot of the time you can pull them out with a pair of pliers. If you leave some of the new ground wire sticking out of the bridge anchor post hole (hold it while you put the anchor in), it'll make the connection. The idea is to do it outside of the anchor piece, not inside where the post screws into. Use a long wire & run it inside the body and up thru the lower F hole.

There is still a factory ground wire in there somewhere; you could try using a flashlight & a long forcept with a curved tip to find it.
 
Re: Earth wire in hollow body

I eventually found the original grounding wire, so now its hooked up and all is good. There is only a little bit of hum. The noise comes in when ever one of the tone pots is turned on. I don't know if this is normal, but I attribute it to radio interference?

Thanks for the help too guys.
 
Re: Earth wire in hollow body

Er, one of your tone pots is getting turned on? :naughty: That must be one sexy geetar!
 
Re: Earth wire in hollow body

Its all in the voice and the way you hold the guitar!,

I meant when the pot is turned up. Im guessing its just radio interference as its not a consistent buzz.
 
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