Filling in missing connections on a schematic

[metertech58761]

Some time back I decided to see if I could reverse engineer a board from a couple close-up photos just for grins since I didn't want to spend > $200 just to get my hands on one for a closer look.

The board in question controls a pair of solid-state relays for a heating system.

I got 98% of the board figured out, but there remain several connections where the traces are obscured by parts or run underneath one IC.

Here's the schematic I worked out, with the six remaining connections highlighted with ?

Hopefully someone has an idea of where the remaining connections should go.