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Author Topic: Please help with a grounding problem  (Read 1063 times)

Doctor X

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Please help with a grounding problem
« on: June 27, 2009, 12:54:43 PM »
Hi all

I've got a problem with my Les Paul that I'm pretty sure is a grounding issue.  It's a Gibson R8 so has 50's wiring.  The guitar gives off a loud hum which stops if I touch any of the metal on the guitar - strings, bridge etc.

I've tried resoldering the braided wire to the back of the volume pots a couple of times but no joy.  Does anyone have any tips for other things I can check?
« Last Edit: June 27, 2009, 01:40:12 PM by Doctor X »
Gibson '58 VOS - PG Blues, Gibson SG Special - MQ's

Doctor X

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Re: Please help with a grounding problem
« Reply #1 on: June 27, 2009, 01:41:31 PM »
Ignore this - if I turn my computer off at the mains then the problem goes away!
Gibson '58 VOS - PG Blues, Gibson SG Special - MQ's

Philly Q

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Re: Please help with a grounding problem
« Reply #2 on: June 27, 2009, 03:22:15 PM »
I was going to say if the buzz goes away when you touch the metal parts, that sounds pretty normal.

Hadn't thought you might be sitting in front of a monitor!  :lol:
BKPs I've Got:  RR, BKP-91, ITs, VHII, CS set, Emeralds
BKPs I Had:  RY+Abraxas, Crawlers, BD+SM

nilsampmaker

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Re: Please help with a grounding problem
« Reply #3 on: June 29, 2009, 09:27:11 AM »
If you have shielded pickups I would measure the impedance (ohm) between ground and shield with an multimeter just to make sure they are properly grounded. There should also be a thin blank wire connected to the bridge posts and it could have gotten loose. Just my two cents, Cheers