Okay - here are some instructions for converting the BYOC A/B True Bypass Looper to an effect order switcher/true bypass looper.
First off. when I refer to switch lug numbers, this is how they are numbered:
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The 4PDT is the same, just with a 4th column of lugs (10-12) on the right side.
The Bypass switch wiring will stay basically the same:
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In fact, wiring steps 1 through 6 (pages 10-15) of the BYOC instructions are exactly the same, except you need to replace the A/B switch with a 4PDT footswitch, available here:
http://www.mammothelectronics.com/4SFS4PDT-LS-p/800-1004.htmOnce you get to step 7 of the wiring instructions, you'll deviate to the effect order switcher diagram.
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In this step, you will still have the wires coming off lugs 5 and 7 of the bypass switch, but instead of going to the 3PDT A/B switch as shown, the fuscia wire coming off lug 5 will connect to 4PDT lug 2 (shown attached to the tip of the input jack in the effect order switcher diagram), and the green wire coming off lug 7 will connect to 4PDT lug 7 (shown connected to the tip of the output jack in the diagram below).
NOTE: Your effect order switch will be rotated 90 degress counter-clockwise from how it is shown in the diagram. Everything will still be connected the same as shown, except the wire connected to the tip of the input jack will be connected to lug 5 of the bypass switch, and the wire connected to the tip of the out jack will be connected to lug 7 of the bypass jack. The LED connections will be the same as shown in the BYOC instructions (which are basically the same as the diagram), except they will be connected to lugs 10-12 of the 4PDT order switch, instead of to lugs 7-9 of the A/B switch.
That's it! That's all you need to do. With these mods, the bypass switch will bypass any effects plugged into A or B jacks, and the A/B switch will now switch the order of the pedals connected to the A/B jacks.
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