My mistake, it was the 250K trim, not the 500R.
The wiring diagram is correct. Ignore the pcb layout and just look at the pads with wires coming out of them. Those correspond to pads on the el sol (and the majority of other projects). The pcb in the wiring diagram is just a generic stand in.I think the el sol wiring diagram needs to be updated. The pcb does not match it.
How about the pharmacist build doc?