Odd .084" pins on the power module board
The power module board connectors use uncommon .084" Molex pins: male 02-08-2006 and female 02-08-1004. Order these rather than the usual .093" or .156" pins.
Systems
Related tips
Source: Repairing Bally 6803 Pinball Games from 1985 to 1989, Clay Harrell (pinrepair.com)