Capcom dot matrix display voltages compared with Williams

A Capcom display runs on -110 V, -98 V and +68 V for the high-voltage drive (Williams uses -125 V, -113 V and +62 V), plus +5 V and +12 V for the logic, the same as Williams.

The display power supply makes roughly -110 V, -98 V and +68 V. Unplug the game and let the supply discharge before touching it.