Quantum Pinouts P20 _______ GND | 1| A| GND +5V | 2| B| +5V +22V | 3| C| -22V | 4| D| Dir 1 | 5| E| 10.3 VDC Clock 1 | 6| F| Clock 2 | 7| H| Dir 2 | 8| J| Coin Left Coin Right | 9| K| Red GND Self Test |10| L| Coin Auxiliary Start 1 |11| M| Start 2 Audio 2 |12| N| Player 1 LED Audio 1 |13| P| Green GND Player 2 LED |14| R| Blue GND Counter Left |15| S| Counter Right X GND |16| T| Red Out Blue Out |17| U| Y GND |18| V| Green Out X Out |19| W| Y Out |20| X| + Sense |21| Y| +5V - Sense |22| Z| GND -------