Gaplus Pinout Parts Side Solder Side ----------------------------------------- GND A | 1 GND SPEAKER + B | 2 SPEAKER - LOCK OUT SOLENOID C | 3 COIN COUNTER 1 P START LAMP D | 4 2 P START LAMP +12V E | 5 +12V +5V F | 6 +5V GND H | 7 GND SERVICE SW J | 8 N/C COIN 1 SW K | 9 COIN 2 SW 1 P START SW L | 10 2 P START SW P1 FIRE SW M | 11 P2 FIRE SW P1 LEFT SW N | 12 P2 LEFT SW P1 DOWN SW P | 13 P2 DOWN SW P1 RIGHT SW R | 14 P2 RIGHT SW P1 UP SW S | 15 P2 UP SW N/C T | 16 N/C N/C U | 17 N/C N/C V | 18 N/C N/C W | 19 N/C N/C X | 20 N/C COIN COUNTER 2 Y | 21 TABLE GND GND Z | 22 GND If you have a cocktail version, then connect pin 21 to ground. Otherwise, leave it off. SOCKET CONTACT (VIDEO) SOCKET CONTACT (PWR) 1 RED 1 +12V 1A 2 GREEN 2 GND 3 BLUE 3 +5V 4A 4 SYNC 5 GND 6 N/C