[Eliot Ness]

Yes, the + of C35 and 36 are tied together in both the schematic and wiring diagram. Then as you thought, in the wiring diagram it shows the + going off on the red wire and the - of C35 going off on the black/red wire.

Those capacitor blocks with several caps in them can be confusing when re-stuffing if you're not careful. There are a lot of wires and capacitor connections to keep track of.

Good luck!