SPACE INVADERS  TAITO

 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