I don't think that green wire under the PCB is at fault, they just relocated the wire from the relay to the Master Volume pot.
The wire goes from the relay to a point after the Gain Pot in the Distortion Channel.
It goes to a junction between a 1k resistor, JFET, 22pF capacitor (20pF).
I am still tracing it slowly for you.
The wire goes from the relay to a point after the Gain Pot in the Distortion Channel.
It goes to a junction between a 1k resistor, JFET, 22pF capacitor (20pF).
I am still tracing it slowly for you.