Never seen one of these before... in fact id never seen a Zac machine before coming to Aus... seems quite a few made their way here.
Most general problem like GI are power supply faults and its a pretty easy board to diagnose and repair.. you should have this working in no time.

I see that even this machine has "orange Special".... no doubt a red and yellow too... Zac's always seem to have these.

Great machines with great artwork