Quoted from Schwaggs:You need to change the cord, the main fuse and rewire the plug to the transformer for US voltage. That will get you running.
To do a thorough job you need to change the MOV surge suppressor to a 130v device (not critical especially if you use a surge suppressor strip).
I would double check how they rewired the transformer to make sure they did it correctly. You can do it incorrectly and the game will function but it stresses the transformer winding. So best to make sure it was done correctly. Info is in the manual that you can download from stern’s site.
Thanks for the help. I checked and the varistor has not been changed so I'll be replacing that. The fuse also is only a 5A 250V, it also doesn't appear to be a slow blow. The size of it is one of the small ones, 5mm x 20mm(ish) as well. Going to change that out to the 6 x 30 size with a 8A 250V.
I also confirmed that the previous owner just tied in a new cord as the wire colors to the line filter are European.
It does look like the previous owner switched the jumps to the transformer but I need one bit of help on that. It appears the black wire is going to position 3 on the Molex with jumpers at 1 and 2. The white wire is going to position 9 with jumpers on 7 and 8. The manual has this opposite, black to 1, white to 7. On the male side the white connects to various combinations of white orange wiring. On the black side connections are to combinations of black orange. I believe the wiring, although out of position, is still correct. Can anyone snap a pick of that 9 pin connector from the power box to transformer to confirm the transformer side wiring coloring? Much appreciated.