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Wiring issue with Epiphone Sheraton II

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Postby Mainlente » December 10th, 2009, 2:32 pm

I just replaced the three-way toggle switch and input jack on my 1993 Epiphone Sheraton II. Now, when I turn up the treble, I get a buzzing sound. It sounds like a grounding problem, but I checked my connections and everything looks okay. What am I missing?

Thanks in advance for your help.
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Postby Blue Jay » December 11th, 2009, 7:24 am

I'm thinking hard, not taking it lightly, and can picture it all. And it happens with treble up?

So, nobody wants to have to do all their work over again, when you've checked it and it looks good.

You've made sure that the jack is wired positive to end pin, and negative to sleeve, not running backwards.

I see little can go wrong at the switch, except for excess solder in the works, and that is common but usually visible.

I would go to the place where you grounded the jack, and either re-do it, the solder connection, or replace that pot, if it got overheated. And check the lugs on the existing pot to see that they did not get loosened or bent.

Finally, look for any OTHER ground wire that may have come undone, particularly the ground to stop tailpiece or bridge. The earth/ground illustration in this diagram is non-specific, but needs to be done, for real. Good luck and welcome! :D

Image

And here is a slightly different view, but technically the same in principle, though differing slightly.

Image

Image
Last edited by Blue Jay on December 11th, 2009, 7:39 am, edited 1 time in total.
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Postby gnease » December 11th, 2009, 7:37 am

Blue Jay wrote:Finally, look for any OTHER ground wire that may have come undone, particularly the ground to stop tailpiece or bridge. The earth/ground illustration in this diagram is non-specific, but needs to be done, for real. Good luck and welcome! :D


this one seems most likely
-=tension & release=-
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Postby Mainlente » December 11th, 2009, 3:42 pm

I can't thank you enough for your insight and assistance. I will take your advice and post my results.

Thanks for the welcome!
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Postby Mainlente » December 11th, 2009, 5:22 pm

Blue Jay, give yourself a gold star. I had the wires reversed on the input jack. I'll grab my ankles and you guys can take turns kicking me in the behind. :oops:

Here's a picture of the object of my frustration:
Image
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