Bingo. The "Suction Cup" is the Anode Cap, connected via its cable to the Flyback Transformer.
The Yoke and Neck connectors are simply where the multi-coloured cables coming off the CRT connect to on the Analog Board. The Yoke being the copper windings around the CRT, the Neck being the very end of the glass tube. Trace those back to the Analog Board and you have the connectors you're looking for.
At a guess, the board was designed to take more than one type of Flyback Transformer and so it had holes for the different types and lead spacings. Yours happens to be soldered into the furthest point, but they're still on the same track. I remember mine having this hole in the board too. It's meant to be that way.