Great looking game, and a very nice player too.
The biggest favour you can do the game (and yourself) would be to re-pin all of the board connectors. This will remove many, many gremlins and ensure that when the Pascal plugs in, most faults will be confined to playfield issues rather than connectors (which are notoriously full of issues and make tracking down issues much harder).
Labourious process, but I can't tell you how worthwhile - first job I do on any Gottlieb.
+1
Also - having a look at the driver board - make sure you test every coil in your machine before installing the Pascal board
