The EMG 89 is an active pickup.
www.emginc.com/content/wiringdiagrams/EMG-81TW-89.pdfSince they don't have the decency to reveal what is actually going on inside when switched from single to dual coil operation, I'm not sure that I care to go to any extent to do so for them.
The SLV is not published on their web site, but it does show up as being a component of the EMG-SL20 system, I can only presume that it is an active pickup as well.
www.emginc.com/products/index/53As these pickups are active pickups sharing a common ground and power supply, phasing can only be done actively.
The PI2 is an active phase inverter.
www.emginc.com/content/wiringdiagrams/0230-0017A%20%20%20PI2.pdfThe EMG 89 requires two wires to be switched for single vs dual coil operation, but as only one of these pickups will be active at the same time, one pole could possibly be used on the super switch for this for both pickups (it goes to the volume pot hot).
Since I don't know what the other pole needs to do internally for each pickup, one must presume that two poles on the super switch will be needed for this.
Also, the middle pickup needs to be switched in, a pole on the super switch is needed for this.
Dang, that there is all four super poles.
Since the PI2 is needed anyway for active phase reversal, I would suggest using a
25K push pull pot for the tone control. Although not as common as other values, one can get them
here. You can rewire the toggle switch connections on the PI2 to the pot switch and use this for phase reversal or not (dang, a choice).
Soooo, no, I don't have a drawing for this, but I rarely keep drawings for most similar/straightforward schemes as they are fairly easy to derive.
I must warn you, I do my work on this board to find folk that can do/learn to do this to help others in turn. As a result, there may be homework assignments for you.
The link that you posted
www.geocities.com/guitarwiring/emg89.htm has all of the info needed to do this. However, I must warn you that the DiMarzio super switch is screwy compared to all other super switches.
The existing designThe lower left pole is used to select either the yellow or blue wire for the orange wire, all coming from the bridge pickup.
This pole looks like this.
1. [Bridge] - blue
2. yellow
3. none
4. none
5. [Neck] - none
Pole common - orange
The lower right pole selects either the green or white wire to go to the volume pot.
This pole looks like this.
1. [Bridge] - green
2. white
3. none
4. none
5. [Neck] - none
Pole common - volume pot hot
The upper left
GeFooey pole selects the middle pickup.
This pole looks like this.
Pole common - volume pot hot
5. [Neck] - none
1. [Bridge] - none
2. middle hot
3. middle hot
4. middle hot
The upper right
GeFooey pole selects the neck pickup.
This pole looks like this.
Pole common - volume pot hot
5. [Neck] - neck hot
1. [Bridge] - none
2. none
3. none
4. neck hot
The new HSH designThe lower left pole is used to select either the yellow or blue wire for the orange wire, coming from the bridge.
This pole looks like this.
1. [Bridge] – bridge blue
2. bridge yellow
3. none
4. none
5. [Neck] - none
Pole common – bridge orange
The lower right pole selects either the green or white wires to go to the volume pot.
This pole looks like this.
1. [Bridge] – bridge green
2. bridge white
3. none
4.
neck white5. [Neck] –
neck greenPole common - volume pot hot
The upper left
GeFooey pole selects the middle pickup.
This pole looks like this.
Pole common - volume pot hot
5. [Neck] - none
1. [Bridge] - none
2. middle hot
(from PI2 module)3. middle hot
(from PI2 module)4. middle hot
(from PI2 module)The upper right
GeFooey pole selects either the
yellow or blue wire for the orange wire, all coming from the neck pickup.
This pole looks like this.
Pole common –
neck orange5. [Neck] -
neck blue1. [Bridge] - none
2. none
3. none
4.
neck yellowDone IS.