I have a Crybaby 535q. It does not wah. It acts like a volume pedal. Since it does turn on and off i dont think it is the switch. since it does control the volume i dont think it is the pot. The 4.7 caps look ok to my eye. My thought is it is the red fasel. I'm not electrically savvy but i am not scared to attempt a task with the right knowledge. Is my diagnosis adding up? Could there be another issue to look into?