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Fender USA pj earthing problems?


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Hi there,

I've just been fidling around with my gear as I have a few spare hours (of which I should be revising in).

I plugged in as per usual and started playing.


After messing around with the tone controls for a few seconds I realised that there was a huge boost of sound when I was touching the bass pot. When I let goof the pot there's a huge decrease in bass output, and therefore it's bloody hard to actually set the bass up accurately as the levels dip in and out as you change them!

It also makes a difference if I'm touching the strings (+pot) too - even louder!



I opened her up and had a look around inside and there's no obvious loss of connection - here's a few pics of inside:

[url="http://www.flickr.com/photos/37914818@N02/3575300651/"]Bass[/url]

[url="http://www.flickr.com/photos/37914818@N02/3576107966/"]Troublesome pot[/url]

[url="http://www.flickr.com/photos/37914818@N02/3576107778/"]Other pots[/url]

[url="http://www.flickr.com/photos/37914818@N02/3576108138/"]Earthing thing[/url]


From what I can see there is no wiring problem - but why is there this huge difference in sound when I'm touching the pots?

Any advice/information would be great!


Thanks for your time!

Ben

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I'm not claiming to be an expert by any means, but it sounds to me like you have a bad signal ground somewhere, and your body is providing a better signal ground reference when you touch anything to do with it.

It almost sounds to me you're grounding the whole guitar - i.e. it could be an issue with the cabling or equipment you're connecting to.

If not, then I would check all the ground connections to the pots and the tab you have shown a photo of. Perhaps a hot iron to resolder them might help?

Just my guess formed on what you've said, not gospel....

Edited by Huge Hands
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[quote name='Huge Hands' post='500978' date='May 29 2009, 02:54 PM']Weird, I could have sworn I replied to this - now it's telling me I haven't.... :)[/quote]

You did - OP asked for deletion as it was a double post - you replied to the deleted one, I've just merged your post into the current one so we don't loose your reply :rolleyes:

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[quote name='Hamster' post='500980' date='May 29 2009, 02:55 PM']You did - OP asked for deletion as it was a double post - you replied to the deleted one, I've just merged your post into the current one so we don't loose your reply :)[/quote]

Ta. I got a bit confused there!

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