Monster Bash Power ----- 10-pin, side of cage 1 - -12VDC 2 - +12VDC 3 - AC (3VAC) 4 - GND 5 - GND 6 - GND 7 - -5VDC 8 - +5VDC 9 - +5VDC 10 - +5VDC Sound Board ----------- 1 - Audio out 2 - Empty 3 - Empty 4 - Shield Video board ----------- 1 - nu (not used) 2 - nu 3 - !srl (not used) 4 - vsync 5 - hsync 6 - !csync 7 - csync 8 - !hsync 9 - !vsync 10 - nu 11 - blue 12 - nu 13 - green 14 - nu 15 - red CPU Board --------- 1 - Coin Counter B + 2 - Coin Counter B (GND) 3 - Coin Counter A + 4 - Coin Counter A (GND) 5 - Coin Mech A (NO) 6 - Coin Mech A (NC) 7 - Coin Mech B (NO) 8 - Coin Mech B (NC) 9 - Service (NO) 10 - Service (NC) 11 - Reset (NO) 12 - Gnd (for coins, service and reset) 13 - nu (not used) 14 - up 15 - 1 player 16 - left 17 - gnd 18 - nu 19 - 2 player 20 - right 21 - down 22 - gnd 23 - nu 24 - nu 25 - nu 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 -