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  #1  
Old 02-17-2009, 10:34 PM
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Vol pot working in reverse

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Hi I just istalled a set of CTS pots in a Squier P5 & While all the pots work fine the NECK VOLUME pot is working in reverse- i.e. as if when you'd normally turn it down /off, it turns UP!

Anyone know what I've done wrong- can a POT be made wrong??? Coz AFAIK it's all installed correctly. Tried changing a few wires round but stilll NO DIFF.
:h elp:

Rod
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Old 02-17-2009, 10:42 PM
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It is possible you have a reverse taper pot, but not real likely.

Either way, if your pickup goes to the center terminal of the pot, reverse the two outside terminals. One should be ground and one should (eventually) go to the output.
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Old 02-17-2009, 10:55 PM
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'kay will try.. even tho I probly did this already..... But will try! THANX
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  #4  
Old 02-17-2009, 10:56 PM
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Aren't volume pots usually reverse log pots? ...which are different than regular pots used for tone? Are you sure you didn't get a standard pot instead of the reverse log type needed for volume control?
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Old 02-17-2009, 10:57 PM
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Audio (log) taper is needed for volume, not reverse taper. They are two different things.
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  #6  
Old 02-18-2009, 04:34 AM
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Quote:
Originally Posted by slyjoe View Post
Audio (log) taper is needed for volume, not reverse taper. They are two different things.
For some reason I though volume pots were logarithmic AND reversed, but maybe I'm confusing them with something else.

EDIT: I just realized that doesn't even make any sense. Never mind.

Last edited by Projectile : 02-18-2009 at 04:37 AM.
  #7  
Old 02-18-2009, 10:39 AM
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You have your wiring reversed.
easy fix, put the wire to ground to the other outside lug.

Speculation on taper etc is fun but has nothing to do with this.

Log pot commonly have a 70/30 taper, meaning that on a 500k pot, 0 to 250k happens in the first 70 (on a Fender amp that would be 0-7) percent of the pot and 250k-500k is the last 30% (7-10). reverse taper would be 0-250 in first 30% (0-3) and 250k-500k in the last 70% (3-10).

Reverse taper is used in a lot of tremolo circuits where the most control is needed at the upper ends of the sweep.

MM
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Old 02-18-2009, 10:44 AM
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Quote:
Originally Posted by metalmariachi View Post
You have your wiring reversed.
easy fix, put the wire to ground to the other outside lug.
MM
this is about the easiest thing to fix in the whole world.

1) On the volume pot, remove hot lead from the current lug, bend it to the body of the pot and solder it to the body (thus grounding it)
2) Remove the solder blob on the oppostise lug, un-bend it away from the body of the pot and attach the hot lead to that lug

Done!
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  #9  
Old 02-19-2009, 09:30 PM
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Thanx all. Prob fixed Just did the reverse w/ the two outside lugs & all 100%. I must've tried all OTHER wiring options bar this one!!!! Typical!!

THANX. All fixed.
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