Solder Side                  |         Parts Side
   ________________________________|___________________________________
                        +5     | A | 1 |     +5
   ----------------------------|---|---|-------------------------------
           Coin Switch # 1     | B | 2 |     --
   ----------------------------|---|---|-------------------------------
           Coin Switch # 2     | C | 3 |     Test Switch
   ----------------------------|---|---|-------------------------------
                 1P  Start     | D | 4 |     2P  Start
   ----------------------------|---|---|-------------------------------
                    1P  Up     | E | 5 |     1P  Down
   ----------------------------|---|---|-------------------------------
                  1P  Left     | F | 6 |     1P  Right
   ----------------------------|---|---|-------------------------------
                        --     | H | 7 |     1P  Button 1
   ----------------------------|---|---|-------------------------------
              1P  Button 2     | J | 8 |     --
   ----------------------------|---|---|-------------------------------
                    2P  Up     | K | 9 |     2P  Down
   ----------------------------|---|---|-------------------------------
                  2P  Left     | L | 10|     2P  Right
   ----------------------------|---|---|-------------------------------
                        --     | M | 11|     2P  Button 1
   ----------------------------|---|---|-------------------------------
              2P  Button 2     | N | 12|     --
   ----------------------------|---|---|-------------------------------
                       GND     | P | 13|     GND
   ----------------------------|---|---|-------------------------------
                       GND     | R | 14|     Video GND
   ----------------------------|---|---|-------------------------------
                        -5     | S | 15|     -5
   ----------------------------|---|---|-------------------------------
                        --     | T | 16|     --
   ----------------------------|---|---|-------------------------------
                Video Sync     | U | 17|     Video Blue
   ----------------------------|---|---|-------------------------------
               Video Green     | V | 18|     Video Red
   ----------------------------|---|---|-------------------------------
               Speaker (+)     | W | 19|     Speaker (-)        
   ----------------------------|---|---|-------------------------------
                       +12     | X | 20|     +12
   ----------------------------|---|---|-------------------------------
                       GND     | Y | 21|     GND
   ----------------------------|---|---|-------------------------------
                       GND     | Z | 22|     GND
   --------------------------------------------------------------------