Evening...
I have a customer who is having some issues getting his circuit to work.
Anyway, he has some gigs coming up and I want to get his guitar working again.
its an es-335 type circuit. He gets nothing but a buzz when plugged in.
Can any of the tech's/builders on here see a problem that I can't from the below photos?
Notes:
- he has replaced that thin ground wire (b string) with cloth wire, to rule out the fact it can come into contact with something it shouldn't
- the old switchcraft switch doesn't appear to have a ground lug, so he has ran a ground from the frame of the switch
- 50's style wiring
It is a grounding issue somewhere, and short of some potential cold/fractured solder joints, I can't actually see what he has done wrong.
My only other guess is that the ground connection to the bigsby isn't right.
Any ideas?
Comments
Conventionally, the braided steel wire mesh is the screen. This should be soldered to the chassis.
In your upper two photographs, you appear to have a braided mesh screen soldered to one of the selector switch input terminals and the signal conductor soldered to ground.
In this configuration, that pickup will produce no sound. With the selector switch in the middle position, the incorrect connection will short out both pickups. More silence (or a buzz).
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Any chance of better close up images of the connections to both volume pots, please?
Requested from customer - we'll see what he sends back.
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Nothing but a buzz indicates no connection between the jack and the switch, either in the hot or ground connections.
Anything else would give either total silence (a short between the jack and switch) or one pickup would work (a problem in the other pickup circuit).
Or the switch could be faulty or wired wrongly. Or the jack could possibly have a faulty ground connection.
It’s also a very bad idea to use an unshielded wire from the neck volume to the switch - that will let in a lot of noise. Only use shielded cabling.
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