Which game?
Have you done the ground mods?
On both the transformer and on the underside of the playfield (for most 80b's) should be listed what each fuse corresponds to. GI has its own, controlled lamps have their own, there are a couple different ones for different groups of solenoids. Tracing the flow backward, if it's not the fuse, next to check would be the pin harness on the driver board followed by associated resistors and transistors, then the associated 7417 IC...
On these Gottliebs, pops and slings are each driven by their own board (as opposed to the driver board), presumably somewhere underneath the pf.
With what you say how it seems to be a group of things not working, could easily be loose grounds.