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Partscaster Assembly/Wiring Problems

PHawley
April 11th, 2012, 06:08 PM
I just finished up wiring my partscaster last night, and when I plugged it in to do intonation today, I noticed a few problems.

1. The bass sound overpowers the treble by a LOT, and the tone control is rolled to have as much treble as possible.

2. Whenever I touch anything metal on the guitar, there is a very loud humming that is about as loud as the guitar itself. It goes away for the most part when I take my hands off of it.

In addition to those wiring problems, I have another. The high E string wants to go directly over the saddle screw on its saddle. This is a Bigsby with the Jazzmaster bridge. In addition to that, the high E doesn't sound right at all when I play it. It sounds like there is a lot of fret buzz, but I can't see where it would be hitting the frets. Any and all help would be appreciated.

southwoodgtars
April 11th, 2012, 08:39 PM
I'm not gonna be able to be a huge help here but you seem to have a grounding issue with the wiring. A few pics may be helpful to some. Do you have it grounded under the bridge? As far as your high E string it sounds more like it is binding at the nut. A quick easy fix is to put quite a bit of pressure with your fingers on the string behind the nut. That may or may not fix it. It depends on how bad the problem is. Try doing that a few times. It has worked for me in the past. I hope you can get some guys with a bit more experience than myself to chime in. :) as I'm sure you know there are a lot of people here with a wealth of knowledge! I'm feel certain you can get it all fixed! Best of luck to you!

PHawley
April 11th, 2012, 11:08 PM
I didn't have a ground wire to the bridge plate, but I just put one in and nothing changed. I think you're right with the nut. I'll work on that tomorrow. For the grounding to the volume pot, is it possible that I heated it up to much (it took a LONG time to get solder to stick to it) and that's what's causing problems?

old_picker
April 11th, 2012, 11:17 PM
havent got the hot wired to the earth have you??

braderrick
April 12th, 2012, 12:23 AM
Try reversing the jack leads. Sounds like they may be backward. This would explain the muffled sound and the buzzing getting worse when you touch anything metal. There should be minimal buzz and it should actually go away when you touch metal. Ya may be able to file a small groove for the string to sit in keeping it in place which may also take care of the sound issue with it. Keep us posted.

PHawley
April 12th, 2012, 12:42 AM
Wow, the jack, right. I spent almost half an hour checking and re-checking the wiring diagram to see if I messed up the pickups... As soon as I get home tomorrow I'll reverse the jack. While I'm at it I'll break out the small nut file and try to take care of the string issues.

PHawley
April 12th, 2012, 06:37 PM
Sure enough it was the jack, so thank you very much! Unfortunately the issue seems to be with the bridge, not the nut. I ordered a new one from Warmoth, but the Mustang kind because I've read they work better for B5 kits.

Hodgecraft
April 12th, 2012, 08:02 PM
Glad you got the grounding problem sorted, can we expect to see some pictures? :)

PHawley
April 13th, 2012, 12:05 AM
I hope you don't mind if I just put them the thread I started a while back for the guitar.
http://www.tdpri.com/forum/tele-home-depot/297924-very-drawn-out-partscaster-build.html

braderrick
April 13th, 2012, 07:42 AM
Glad to hear the wiring is good. If you're goin to change the bridge anyway, could you try filing a little notch in the saddle to keep the string where ya need it?