• Ernie Ball
  • MusicMan
  • Sterling by MusicMan

blacai

New member
Joined
Feb 28, 2020
Messages
2
So I am trying to switch the sterling pickups of my JP150 with some dimarzio, liquidfire, crunchy lab but it doesn't seem to be working...

The configuration is:
2 Humbuckers
1 Volumen with push/pull active volume boost
1 Tone
3 toggle pickup selector.

Before taking the pickups off I wrote down the wires of the pickups:

pos 1 toggle: green wire of neck pickup
pos 2 toggle: nothing
pos 3 toggle: red wire of bridge pickup

middle ground toggle: red+bare of neck pickup and green+bare of bridge pickup

I don't know if the sterling pickups are based on any specific vendor...but I assumed it could be dimarzio so I tried to solder the basic configuration of a 3 toggle, with hots(red wires) to the toggle 1 and 3 and green+bare to the ground.

But the pickups sound really low and lose output.

I have tried several wirings but I cannot manage to make it work.

I didn't touch the volume nor the tone, I just took off the wires of the toggle and soldered the new pickups.

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Any idea what I am doing wrong?

Thanks in advance.
 

PeteDuBaldo

Well-known member
Joined
Jul 16, 2004
Messages
10,186
Location
Central Connecticut (Manchester) USA
The SBMM wiring colors are not the same as DiMarzio (I think each factory has done the SBMM wiring with different colors).

On DiMarzio pickups wired to a standard 3-way toggle you would wire them as follows:
Red - hot from toggle
Black and white joined together
Green - ground
Silver/shield - ground
 

blacai

New member
Joined
Feb 28, 2020
Messages
2
Thanks for answering!
As I wrote, each of the sterling pickups had a different wiring color schema...so I was totally confused and opted for a typical DiMarzio wiring diagram with hots(red) directly to the toggle 1 and 3 and green-shield to ground.

The problem was I forgot to join the black and white in one of the pickups, I just tapped them (bad thing about soldering at 2a.m....)

So after mounting them again and doing the basic proper soldering everything worked perfectly.
 
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