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01-29-2012, 01:14 PM
|  | Registered User | | Join Date: Oct 2011 Location: Northwest, OH USA | | | pot replacement 2010 mim jazz
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Okay,
so I acquired the CTS Linear taper pots for my jazz bass.
Opened it up and started taking pics of the wiring and something kinda stood out.
The black wire from the bridge pickup is soldered to the tone pot.
Actually the same situation is present with the neck pickup.
Is my bass miswired?
Every wiring diagram I have seen has the black wire going to the case of the bridge pickup volume pot.
There is no ground wire attached to the casing of the bridge volume pot at all.
Am I missing something here?
Please give me some feedback as I am not sure which way to turn on this.
Thank you very much in advance for any direction or feedback you may offer.
Jeff
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Ibanez Club #889, Xavier Club #5, Fender Jazz Club #828
Peavey Amp Club #156 Acoustic Amp Club #357
Last edited by JHandley : 01-29-2012 at 01:19 PM.
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01-29-2012, 01:34 PM
| | | | It looks OK to me. Do the knobs work as expected? They should...
The grounds are fine, they just used the back of the tone pot instead of a volume pot, it makes NO difference. The volume pots are grounded by having one tab soldered to the can, and then they are all tied together via the metal control plate. Note that the output jack doesn't even have a ground wire connected to it, and doesn't need one either.
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Bass, the only instrument you hear outside the nightclub door.
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01-29-2012, 01:35 PM
|  | Registered User | | Join Date: Oct 2011 Location: Northwest, OH USA | | | cool, thanx a ton man.
I can proceed.
Jeff
__________________
Ibanez Club #889, Xavier Club #5, Fender Jazz Club #828
Peavey Amp Club #156 Acoustic Amp Club #357
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01-29-2012, 01:36 PM
|  | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | | It makes absolutely no difference. All ground points on the bass carry the same potential. | 
01-29-2012, 01:45 PM
|  | Registered User | | Join Date: Oct 2011 Location: Northwest, OH USA | | | Thanx guys,
I had forgotten about the controls being mounted on a metal control plate.
A DUH moment for me.
Jeff
__________________
Ibanez Club #889, Xavier Club #5, Fender Jazz Club #828
Peavey Amp Club #156 Acoustic Amp Club #357
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01-29-2012, 03:13 PM
|  | Registered User | | Join Date: Oct 2011 Location: Northwest, OH USA | | | Got it done!
Thanx for the feedback, works as expected, nice tapered volume now, from 0 to 10.
Jeff
__________________
Ibanez Club #889, Xavier Club #5, Fender Jazz Club #828
Peavey Amp Club #156 Acoustic Amp Club #357
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01-29-2012, 03:22 PM
| | | | you kept the tone pot audio taper, right?
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Walter Wright
Guitar Repair Gnome
Alpha Music, VA Beach
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01-29-2012, 03:48 PM
|  | Registered User | | Join Date: Oct 2011 Location: Northwest, OH USA | | | yep sure did Walter.
I was really surprised to see they were CTS pots.
Pleasantly surprised indeed.
Jeff
__________________
Ibanez Club #889, Xavier Club #5, Fender Jazz Club #828
Peavey Amp Club #156 Acoustic Amp Club #357
| 
01-29-2012, 08:16 PM
| | | | oh yeah, the standard fender USA and mexi pots are very nice low-torque CTS 250k audios.
__________________
Walter Wright
Guitar Repair Gnome
Alpha Music, VA Beach
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