I posed this same question a week or so ago to the place I ordered all this stuff from, but in the mean time perhaps the brain trust here on TB will bear some fruit 
I'm attempting to install some Bartolini dual coil pickups in my Ibanez Cerro SRSC805 (active preamp) and take advantage of their coil splitting capabilities. The good news is that the pickups seem to work fine when wired up without the switches inline. The bad news is I can't seem to get the switches to do anything
Here's what I'm working with:
Bartolini XXP25C-B in the neck w/ a on-off-on DPDT for P/full humbucker/reverse P
Bartolini P252J-T in the bridge w/ a on-on-on DPDT for series/single coil/parallel
Starting with just the neck pickup (XXP25C), I cannot seem to get the DPDT to do anything. No matter what position the switch is in, the pickup sounds exactly the same, and I’m assuming it’s acting like it’s in the center/off position of quad series hum cancelling as it’s very loud and full. As far as I can tell it sounds exactly like when I’ve got no switch inline at all. I’ve tried wiring it up two ways based on a variety of Bartolini wiring diagrams that I’ve found online. “GS Bart XXP25C wiring 1” is my hand drawings of what I’ve tried, and “Bart XXP25C on-off-on” is what I think is the right one, which I believe is the same as #2 on my drawing.
I’ve triple checked that I’m definitely using the on-off-on DPDT with the XXP25C. I’m also assuming the DPDT is orientation-less and there is no top or bottom (meaning it shouldn’t matter which row of leads I’m using). Should I maybe be connecting the white negative lead on the pre to the same DPDT terminal as the pickup white wire, and sending the ground from the DPDT to one of the separate grounding points? When I had it wired up without the DPDT I was sending black to black on the preamp, shield and green to white on the preamp, and leaving red and white connected together.
Perhaps if I can sort out the switching issue with the XXP25C, I can apply the same logic to the P252J (which I've got separate wiring diagrams from Bartolini for).
Any ideas as to what I’m doing wrong?
I'm attempting to install some Bartolini dual coil pickups in my Ibanez Cerro SRSC805 (active preamp) and take advantage of their coil splitting capabilities. The good news is that the pickups seem to work fine when wired up without the switches inline. The bad news is I can't seem to get the switches to do anything
Here's what I'm working with:
Bartolini XXP25C-B in the neck w/ a on-off-on DPDT for P/full humbucker/reverse P
Bartolini P252J-T in the bridge w/ a on-on-on DPDT for series/single coil/parallel
Starting with just the neck pickup (XXP25C), I cannot seem to get the DPDT to do anything. No matter what position the switch is in, the pickup sounds exactly the same, and I’m assuming it’s acting like it’s in the center/off position of quad series hum cancelling as it’s very loud and full. As far as I can tell it sounds exactly like when I’ve got no switch inline at all. I’ve tried wiring it up two ways based on a variety of Bartolini wiring diagrams that I’ve found online. “GS Bart XXP25C wiring 1” is my hand drawings of what I’ve tried, and “Bart XXP25C on-off-on” is what I think is the right one, which I believe is the same as #2 on my drawing.
I’ve triple checked that I’m definitely using the on-off-on DPDT with the XXP25C. I’m also assuming the DPDT is orientation-less and there is no top or bottom (meaning it shouldn’t matter which row of leads I’m using). Should I maybe be connecting the white negative lead on the pre to the same DPDT terminal as the pickup white wire, and sending the ground from the DPDT to one of the separate grounding points? When I had it wired up without the DPDT I was sending black to black on the preamp, shield and green to white on the preamp, and leaving red and white connected together.
Perhaps if I can sort out the switching issue with the XXP25C, I can apply the same logic to the P252J (which I've got separate wiring diagrams from Bartolini for).
Any ideas as to what I’m doing wrong?
