Pretty sure system 11 specify 4 amp slo-blow for "foreign" games (8 for US 110v). If it's popping then it does suggest an issue. Maybe replace the cabinet switch which might have an issue??

Good thought, I didn't mention that I am turning the machine on and off at a power point, perhaps the fuse holder is not up to snuff?  It looks good though.
Had another thought, faulty varistor?.
Also have GI disconnected as well as aux power board, cant imagine that being an issue/
Thanks for the help guys.