Brach! These seems to have done most of the trick! I jumpered R4 to TP4 and R5 to TP2. I am now getting tremolo and all the knobs seem to be doing something. I do not, however, seem to be getting the “Harmonic” effect.
Now, I don’t seem to have a good connection at JP3. I believe my pads are burned past the point of soldering anything to them. When I tried to attach a small piece of wire, it didn’t have anything to adhere to.
https://drive.google.com/file/d/1enTMnNzErKcSwl3Mak0h9ykUjPVLoGU1/view?usp=sharing