sounds like the model 1168 which was made for the australian market.
you can email pics to slotpics@cdyn.com if you want. Highest possible resolution - entire front of machine and as much of the inside as you have the patience for. Taking pics from back far enough that everything can be seen in one picture helps, then the game can be matched to similar machines that there is paperwork available.
I don't have any paperwork for that game either, but it's a pretty standard 4 reel slot so the generic 2600 manual will apply. There's also some circuit descriptions in the 100 revised manual.
generally speaking, if the reels spin and stop correctly, chasing down individual issues won't be too bad.