Taito Space Invaders Connector Pin Outs --------------------------------------- COMP CKT ------ GAME BOARD ------ 1 GND A GND 2 GND B GND 3 GND C 4 SP D SP 5 +12V E +12V 6 F 7 H +12V 8 J GND 9 +5V K +5V 10 RESET L 11 M 12 TILT N 2 START 13 CTR DRIVER BD PIN 2 P 1 START 14 FIRE R RIGHT 15 S LEFT 16 T 17 U 18 V CPU BOARD 1 +5V 2 +5V 3 +12V 4 +12V 5 -5V 6 7 8 9 10 11 12 13 14 GND 15 GND 16 GND 17 GND 18 VIDEO DIP 1 1 2 3 4 5 6 7 8 ------ ON ON 3 # OF BASES OFF ON 4 ON OFF 5 OFF OFF 6 ON CHECK RAM AND SOUND CPU BD# CUN00006 ON 1500 BONUS PTS OFF 1000 ON ON ON FACTORY OFF NO PRICING ON SCREEN VOLUME POTS 1 UFO VOLUME 2 LASER BASE FIRING 3 LASER BASE DESTROYING 4 INVADERS BEING DESTROYED 5 BEEP FOR BONUS 6 INVADERS ADVANCING 7 UFO BEING DESTROYED 8 MASTER VOLUME