PINOUTS:

                 SOLDER  |  PARTS
    ---------------------+----------------------
             1P.Up   | 1 | A |   1P.Down
           1P.Left   | 2 | B |   1P.Right
         1P.Push 1   | 3 | C |   1P.Push 2
             2P.Up   | 4 | D |   2P.Down
           2P.Left   | 5 | E |   2P.Right
         2P.Push 1   | 6 | F |   2P.Push 2
            Coin 1   | 7 | G |   Coin 2
               GND   | 8 | H |   GND
               GND   | 9 | I |   GND
               +5V   |10 | J |   +5V
              +12V   |11 | K |   
                     |12 | L |   +12V
               +5V   |13 | M |   +5V
               GND   |14 | N |   GND
               GND   |15 | O |   GND
          1P.Start   |16 | P |   2P.Start
              Test   |17 | Q |   Service
         Counter 1   |18 | R |   Counter 2
         Speaker +   |19 | S |   Speaker -
                     |20 | T |   Red
             Green   |21 | U |   Blue
               GND   |22 | V |   Sync