Grounding problem with Lakland Duck after pickguard swap

I had this same problem on a Glaub. There is a ground that should be there and on mine it was a piece of foil on the back of the pickguard. I bought a new one that didnt have it and i had the same issue.

 

anytime bro! Glad it worked!

 

I did exactly the same thing when i got a PG for my DD from Jeannies.
It took me a few mins to figure out it didnt have any foil on it.

 

Well it was a few years ago and i was about to start a thread at the time so almost.

It wasnt until i put the original PG back on and the hum went that made me look at both and then it was pretty simple to sort out.
Until that point i thought i had broken a pot, so i almost got the award. Just glad no one ever found out about it

 

This is why control plates and pickguards should never be used for a ground return. If one of the knobs or output jack loosens, you can get intermittent behavior.

While you got the guts of that thing open, I would run ground wires to all common ground points: the foil will be the backup.

 

Do it anyway: you can thank me later.

 

i was wondering, all parts are grounded (including the foil) to the pot and then to the ground on the jack?