CN1 Top Speed Note: Stereo speakers, uses steering wheel. Buttons arranged on JAMMA as such: Button A Accelerator Button B Shifter Button C Nitro PCB Pinout Parts Side/Solder Side ------------------------------------------------------------- Ground | 1 | A | Ground ------------------------------------------------------------- Ground | 2 | B | Ground ------------------------------------------------------------- +5 Volts | 3 | C | +5 Volts ------------------------------------------------------------- +5 Volts | 4 | D | +5 Volts ------------------------------------------------------------- -5 Volts | 5 | E | -5 Volts ------------------------------------------------------------- +12 Volts | 6 | F | +12 Volts ------------------------------------------------------------- | 7 | H | ------------------------------------------------------------- | 8 | J | ------------------------------------------------------------- Coin meter 1 | 9 | K | Coin meter 2 ------------------------------------------------------------- L Speaker + | 10 | L | R Speaker + ------------------------------------------------------------- L Speaker - | 11 | M | R Speaker - ------------------------------------------------------------- | 12 | N | ------------------------------------------------------------- | 13 | P | ------------------------------------------------------------- Ground | 14 | R | Service ------------------------------------------------------------- Ground | 15 | S | ------------------------------------------------------------- Coin 1 | 16 | T | Coin 2 ------------------------------------------------------------- | 17 | U | ------------------------------------------------------------- Nitro | 18 | V | Start ------------------------------------------------------------- | 19 | W | Accelerator ------------------------------------------------------------- Shift | 20 | X | ------------------------------------------------------------- | 21 | Y | ------------------------------------------------------------- | 22 | Z | ------------------------------------------------------------- | 23 | a | ------------------------------------------------------------- | 24 | b | ------------------------------------------------------------- | 25 | c | ------------------------------------------------------------- Steering 1 | 26 | d | Steering 2 ------------------------------------------------------------- Ground | 27 | e | Ground ------------------------------------------------------------- Ground | 28 | f | Ground ------------------------------------------------------------- Video connector 1 Ground 2 Red 3 Green 4 Blue 5 Sync Power connector 1 Ground 2 Ground 3 Ground 4 Ground 5 +5 Volts 6 +5 Volts 7 +5 Volts 8 +5 Volts 9 -5 Volts 10 Key 11 +12 Volts 12