Devil Zone, Universal (1980) ---------------------------- 56-pin edge connector ---------------------------------------------------- GND | 1 | A | GND GND | 2 | B | GND +5v | 3 | C | +5v +5v | 4 | D | +5v +12v | 5 | E | +12v -5v | 6 | F | -5v GND | 7 | H | GND +18v | 8 | J | +18v | 9 | K | COIN SW GND | 10 | L | AUDIO | 11 | M | AUDIO | 12 | N | RESET (TILT) | 13 | P | | 14 | R | 1P RIGHT | 15 | S | 2P RIGHT | 16 | T | | 17 | U | | 18 | V | 1P LEFT | 19 | W | 1P LEFT | 20 | X | 1P START | 21 | Y | 2P START 1P FIRE | 22 | Z | RED 2P FIRE | 23 | a | GREEN COIN COUNTER 2 | 24 | b | BLUE COIN COUNTER 1 | 25 | c | SYNC COIN 2 | 26 | d | GND COIN 1 | 27 | e | GND GND | 28 | f | GND