1:Aux clock out 23: Aux Data out 2: +5V 24: +5 3: Gnd 25: Ground 4:NC 26: M- /St 5:Serial Data in (Keypad) 27 NC(Txd) 6: /VC signal 28: 7: NC 29: 8: NC (5V from pin 2 on module) 30: Ground 9: Gnd 31: -5V 10: +5V 32: Ground 11: Gnd 33: Mono Audio out 12: Right Audio Out 34: Gnd 13:Gnd 35: Left audio out 14:Gnd 36: 15:Gnd 37: 16:Video out 38: 17: Ground 39: 18: Video in 40: 19: Ground 41: 20: +12 42: 21: 43: 22: 44: 36-41 Ground 42 -12V