CAA PT-100 foot switch schematic

Hi fellow CAA/Suhr owners. I just snagged CAA PT-100 but it doesn’t have a foot switch. This model is unlike the last one I had as it has 2 foot switch sockets. One ( mono) for changing Ch2-Ch3 the other TRS to change Ch1 and boost. My problem is I have a Marshall double foot switch which works but it works arse backwards! Ie it’s lit up when it shouldn’t be and not lit when it should be! Anybody got a schematic of the foot switch or some gut shots so I can wire it up the correct way? Thanks in advance!