4-Way Switch Help: No Bridge-Only...

Hey all

I'm wiring up a 4-way switch using Callaham's diagram, but I'm not getting position 4, bridge-only, to be bridge-only. Positions 3 and 4 sound identical, with both pickups active (tested my tapping with a screw driver). Here's a pic (my jumpers are bare wire, so look closely to see them as they kind of blend-in):

https://dl.dropbox.com/u/20078/4WayWiring01.jpg

These are Lollar pickups, and they added the neck pickup ground wire. Callaham's wiring is:

Pos 1: Neck
Pos 2: Neck/Bridge Series
Pos 3: Neck/Bridge Parallel
Pos 4: Bridge


Here's really rough drawing of his wiring scheme:

https://dl.dropbox.com/u/20078/4WayWiring02.jpg


For the life of me, I can't figure out what's wrong, and why I can get bridge pickup only to work. There are no solder overlays, no bridges...Ugh.

Thoughts?

Ha, figured it out: the switch channel on the pickguard wasn't allowing the switch to move all the way to the last position, so a little bit of finessing and fine-tuning got her working right!

I had the same problem when I installed a 4-way on my Tele. I solved it not by enlarging the slot in the control plate, but by notching the flat shaft on the switch itself. Works like a champ!

I was just getting ready to reply that your switch is wired identically to mine. Glad it's fixed!

That's a fairly common problem people encounter when installing a 4-way and you found it out so all is right. You're gonna love that extra tonal selection. Fender should just send them out of the door that way.

you got off easy :lol:


Looks like you have Custom Shop pickups there, which ones ??

same problem here except I REALLY don't know what's going on...I'll make a new thread

Same problem actually ;)

Same solution...