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Author Topic: Need advice on complicated Petrucci JPX wiring scheme parallel/series split etc.  (Read 1356 times)


  • Junior Flyweight
  • *
  • Posts: 30
  • BKPs:
So I have just replaced my Crunch Lab/Liquifire with a set of Mules.  I made sure to order the 4 conductor and I know that the Dimarzio/BKP green and black wires are reversed.  This is the JP model with the 5-way switching.  A diagram of the control functions can be found here:

In short, it should be:
Inside coils parallel
Both parallel
Outside coils parallel

Wiring up like the OEM pups, it is:
Neck slug coil/bridge screw coil
Both parallel
Neck screw coil/bridge slug coil

I have the screw coil for the neck nearest the neck.  I suppose I could easily reorient the pickup, but did I mess up the wiring?  Do I need to reverse the wire colors on the neck  to swap which coil is split?  If I turn the pickup, will I actually be getting the right splits?

And just in case someone asks....picture


  • Welterweight
  • ****
  • Posts: 2207
First of all, congrats to that beautiful guitar!

You got the positions 1, 3 and 5 right.

I understand you wanted the other two to be both slug coils and both screw coils. To change that from the wiring you have right now involves rewiring one of the pickups but before you do that we need to make sure that we do not have to flip the magnet first in order to get these positions humcancelling.

Do you get more hum in positions 2 and 4 compared to the other positions? If yes, that is good because we would then only need a fairly simple rewiring. If not, the same rewiring would lead to hum in the positions 2 and 4.

However, if you mentioned to BKP that the pickups went into this guitar I would expect that they considered the magnetic orientation of the set.

We would also need to know how the pickups are wired right now - I suppose red of each to hot, black of each to ground and green/white to the split terminal, right?

Cheers Stephan