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Help in rewiring guitar pickup (electrical circuit) for additional functions

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Rango:
Hello guys. I will be rewiring electrical circuit in guitar pickup as it appears it's missing critical green wire for extra options in electrical circuit. I will be identify positive and ground for each coil (2 coils total) and then solder color coded wires onto it. Total of 5 wires. Currently i only SEE 4, 2 whites and 2 blacks. 

The goal is to accomplish splitting the 2 pickups (electrical circuit) into single active coil and "in phase" and "out of phase" electrical circuit. I have attached picture below.

I have taken my pickup apart and it has total of 4 visible cables (2 whites HOT? and two black GROUND?) and maybe hidden bare ground copper which i can not see at this moment in pickup itself. It's viable on kwikplug wire but not pickup which kinda adds to my confusion.

Correct me if I am wrong but is the ground wire in the kwikplug itself and then soldered onto back of the pickup plate. However kwikplug itself has actual bare/ground wire coming out of it. Pictures below.

I see 2 black wires and 2 white wires. I'm assuming blacks are negative from 2 coils and 2 white are positive from pickup coils. If you look at the GFS instructions below it appears to be the case.

My plug is the last one identified with 4 conductor vinyl lead. The green wire (+ from one of the coils) that is critical is most likely one of the white wires from one of the coils. If you notice the manufacturer change colors on plug itself but used only 2 colors in pickup.

Looks like i need to create bare/ground wire but what is the best place to originate it from? This could be totally wrong assumption however, hence me asking here for help pretty please?

Obviously i will measure which coils is which and color code it to SD color scheme once identified. Will be adding colored cables as well.

I will be bypassing kwikplug entirely and creating 5 wires total. 2 hots, 2 grounds from each coil and 1 bare ground i think that's for pickup housing ground?

So based on those pictures below am i missing ground wire? If so where should solder the missing ground wire or is that ground/bare wire soldered onto pickup housing itself under kwikplug?

Thank you and much appreciate your help.

My pickup taken apart and colored wires







My pickups from GFS colored codes and kwikplug color codes





Finally once i get 5 wire and color code each wire i will be doing this wire up. 



alsetalokin4017:
I will help you but we need to go through this in a logical manner. I'll ask you some questions and based on what you find out with your DMM, I will be able to answer your questions and get your guitar wired up the way you want it.  OK?
(For the EE purists out there we all know that the signal from the guitar pickups is AC, so it really is a misnomer to call the leads "+ and -" but we will happily follow guitar conventions here to avoid confusion. Confused yet? OK.)


--- Quote from: Rango on October 27, 2019, 07:56:42 pm ---Hello guys. I will be rewiring electrical circuit in guitar pickup as it appears it's missing critical green wire for extra options in electrical circuit. I will be identify positive and ground for each coil (2 coils total) and then solder color coded wires onto it. Total of 5 wires. Currently i only SEE 4, 2 whites and 2 blacks. 

The goal is to accomplish splitting the 2 pickups (electrical circuit) into single active coil and "in phase" and "out of phase" electrical circuit. I have attached picture below.

I have taken my pickup apart and it has total of 4 visible cables (2 whites HOT? and two black GROUND?) and maybe hidden bare ground copper which i can not see at this moment in pickup itself. It's viable on kwikplug wire but not pickup which kinda adds to my confusion.

Correct me if I am wrong but is the ground wire in the kwikplug itself and then soldered onto back of the pickup plate. However kwikplug itself has actual bare/ground wire coming out of it. Pictures below.

--- End quote ---
OK, let's confirm this with the DMM. Check for continuity between the visible KwickPlug bare copper wire, and the back of the pickup plate. The connection might be made in the solder joint that holds the plug to the pickup, so you can't see it, but it is probably there.

--- Quote ---
I see 2 black wires and 2 white wires. I'm assuming blacks are negative from 2 coils and 2 white are positive from pickup coils. If you look at the GFS instructions below it appears to be the case.

--- End quote ---
Never assume. Always check. So with the DMM check for continuity. It could be that one coil is black and the other coil is white. You are probably right but do check. If you have continuity from black to white that is good and yes the black wire is going to be the start of the winding ( "-" ). Also check for continuity between the coil wires and the case and ground wire. Sometimes the pickup case is grounded to the black wire itself; this should not be the case here but do check please.

So please check these items, report back, and we will go from there.

alsetalokin4017:
You will also need to identify which wire pair goes to which coil in the pickup, (slug or screw), and mark them somehow so we don't mix them up later.

The Silver wire in the ThroBak diagram will be your KwickPlug cable's bare wire from the pickup housing, if that is what it is. 

The Jimmy Page wiring system (If it uses the same color code as the ThroBak diagram) seems to require full access to both coil windings of both pickups, so your KwikPlug cable needs to have 5 wires, not 4, and I don't see such a cable listed.  Or rather, one of the pickups does seem to have both Black and Green to the same point, so for this pickup you could use your 4 wire cable and make the necessary connection at the pickup splice rather than at the pot.

floobydust:
This is a form of torture. EE's think in schematics, not pictures of wiring.

The absolute phase of each pickup is important if you are (audio) mixing them. Surely why there are unique colour codes with north and south, start/finish of each winding. Although there is a phase-invert (B-tone) switch.
With OP's GFS pickup and two white, two black, it's a problem and possibly the controversy over their sound. I think OP will have to ID the correct phasing for Jimmy's mod to work?

About the grounding, there are more docs out there on the kwikplug system.
I would solder a wire from the outside of the pickup plate to ground. It doesn't seem to have a ground connection right now.
I don't like the solder blobs on the inside of your pickup case, in case they hit the mag bar or fall off. What was going on there.

edit: found Gibson's schematic, note series coil switch

rjp:
as others have said, you can work out which wires are which coils with the DMM.

you can also work out the phase of the coils with the DMM using an iron object like a screwdriver - attach the DMM to the coil in volts mode and slowly bring the iron closer to the coil, you should see the volts go down, or go up, as the first oscillation of the AC current.

then you can keep track of which wire combinations give you the same phase, or out of phase, as required.

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