Need some advise/ help with grounding - Constant Buzz

[80s]

Hey all,
Ok i have 2 SD Humbuckers in a jackson Randy Rhodes. I get a horrible buzz constant,until I touch the strings. I thought it may be something electrical interfering but I tried my other guitar and that was fine.

The jackson has the metal Scratchplate and I used Copper tape to screen the Controls cavity. still a buzzzzzzz.

I Now think it has to be the wiring.

Here is a diagram of the wiring inside.

2 Volume

1 Tone

3-Way Gibson Toggle

Any help would be really Appreciated

 

[dualaud]

Re: Need some advise/ help with grounding - Constant Buzz

hiya,

take off the knobs from your pots and attach a guitar string or preferably a wire (properly stripped of the outer plastic insulation) from the strings on your guitar to the shaft of any pot.
better connect a guitar string from one of your strings on the guitar to the screw nut on the output jack.
does the buzz go away?
if so, the ground wire from under your bridge to the instrument output is bad.

check here on how-to connect the ground wire and more stuff. its for single coil guitars, but helpful nonetheless.

cheers,
dual

 

[80s]

Re: Need some advise/ help with grounding - Constant Buzz

Tried both, no difference, maybe I will just re-wire it all incase theres a bad join somewhere ?

 

[dualaud]

Re: Need some advise/ help with grounding - Constant Buzz

oops, the link wasnt there. here go:

http://www.guitarnuts.com/wiring/shielding/shield3.php

buzzing until touching is an improperly grounded circuit in the guitar.
i had buzzing until touching strings in my jaguar today as well. turned out that the guitar (strings/hardware) wasnt properly grounded via the bridge.

so you have a multi/ohmmeter? you could check some things before ripping everything apart again.

check whether there is a small wire coming through a hole into the controls cavity. it should be the ground connection from your bridge. this wire has to be connected so that it touches the ground connection at your output jack. or the back of some pot.

(if you follow the above link you will see, that in fact it shouldn't touch the pot housing. a properly grounded guitar wont have ground on the pots housings. that is a properly grounded guitar should avoid ground loops)

but what you have is probably a missing ground connection somewhere.