WMS Inferno Pinouts: -------------------- CPU Board: J2 (4-PIN): 1 - POT END 2 - POT Wiper 3 - KEY 4 - POT END (the other side -- GND) J3 (4-PIN): 1 - SPEAKER + 2 - N/U 3 - N/U 4 - SPEAKER - J4 (10-PIN): 1 - 2 - KEY 3 - SLAM-TILT 4 - RIGHT COIN 5 - CENTER COIN 6 - LEFT COIN 7 - HIGH-SCORE RESET 8 - ADVANCE 9 - AUTO-UP/MANUAL-DOWN 10 - GND (Control Panel) J5 (12-PIN): 1 - 2-PLAYER START 2 - 1-PLAYER START 3 - TRIGGER 2 (NOT USED) 4 - TRIGGER 1 (NOT USED) 5 - P2 FIRE DOWN-LEFT 6 - KEY 7 - P2 FIRE DOWN-RIGHT 8 - P2 FIRE UP-LEFT 9 - P2 FIRE UP-RIGHT 10 - GND (Control Panel) 11 - P1 FIRE DOWN-LEFT 12 - P1 FIRE DOWN-RIGHT J6 (12-PIN): 1 - P1 FIRE UP-LEFT 2 - P1 FIRE UP-RIGHT 3 - P2 MOVE DOWN-LEFT 4 - P2 MOVE DOWN-RIGHT 5 - P2 MOVE UP-LEFT 6 - P2 MOVE UP-RIGHT 7 - P1 MOVE DOWN-LEFT 8 - P1 MOVE DOWN-RIGHT 9 - P1 MOVE UP-LEFT 10 - KEY 11 - GND (Control Panel) 12 - P1 MOVE UP-RIGHT J7 (12-PIN): 1 - GND 2 - GND 3 - GND 4 - GND 5 - +12 (Regulated) 6 - +5 7 - +5 8 - +5 9 - +12 (UnRegulated - for Jamma I tied it to +12) 10 - +12 (UnRegulated - for Jamma I tied it to +12) 11 - KEY 12 - -5 VIDEO Board: J2 (7-PIN): 1 - RED 2 - GREEN 3 - BLUE 4 - GND 5 - VERT SYNC 6 - HORIZ SYNC 7 - COMP SYNC (POSITIVE! Cut W5 for NEGATIVE) J3 (10-PIN Mislabelled J2 on the schematics): 1 - GND 2 - GND 3 - GND 4 - GND 5 - KEY 6 - +5 7 - +5 8 - +5 9 - +12 10 - -5