A have a Spider Valve MK I with Shortboard MKI! A have a problem with my shortboard, when I connected to the amp, it always going to the edit mode! I tested what happen, and I found an interesting thing. When I knocking on the controller's chassis with My finger it is go to the edit mode or blinking the led of the FX loop, if I touch the FX loop switch (no I not push, just touch ) when I do this same thing happen! Because this problem appeared before our concert I disconnected the cable from the pcb of the FX loop and UP switch as short term solution! But it is not comfortable!
Do anyone have idea what is the problem, the solder looks like good and the switch works fine!