Hello, going by the drawings in the Ipdb entry for Eight Ball Deluxe, the 'line voltage' ac input to the transformer is applied to pins 1 and 5 of that connector (by their numbering). For 220 volts input, the jumper wires in the plug for that connector should be between pins 4 and 8, and between 7 and 9, again by their numbering. Since the socket in your picture seems to have '1' and '5' empty, they may have torn out, or your numbering may not tally with theirs. One pointer is that the fuse connects to pin 1, and pin 12 is shown as not used.