ZERO HOUR



  1  GND                              A  GND
  2  GND                              B  GND
  3  +5V                              C  +5V
  4  +5V                              D  +5V
  5  +12V                             E  +12V
  6                                   F
  7  GND                              H  GND
  8                                   J
  9                                   K
 10                                   L
 11  SP                               M  SP
 12                                   N
 13  1 LEFT                           P  2 LEFT
 14  1 DOWN                           R  2 DOWN
 15  1 RIGHT                          S  2 RIGHT
 16  1 UP                             T  2 UP
 17  1 FIRE                           U  2 FIRE
 18  1 START                          V  GND
 19  2 START                          W  RIGHT COIN
 20  GND                              X  LEFT COIN
 21  VID RED                          Y  COIN N/C---|
 22  VID GN                           Z  COIN N/C---|
 23  VID BL                           a  COIN N/O (BOTH)
 24  SYNC                             b  TILT
 25  GND                              c  TILT
 26                                   d
 27                                   e
 28                                   f