DOG FIGHT Thunderbolt 1983 --------- SOLDER | PARTS ---------------------+---------------------- | 1 | A | +12V Speaker | 2 | B | Speaker Name Input Button | 3 | C | 1P.Up 1P.Right | 4 | D | 1P.Left 1P.Start | 5 | E | 2P.Start Name Input Button | 6 | F | 2P.Up 2P.Down | 7 | G | 2P.Left | 8 | H | 2P.Right Counter 1 | 9 | I | 1P.Down Coin 2 |10 | J | Coin 1 |11 | K | Counter 2 1P.Shoot 3 |12 | L | 2P.Shoot 2 Green |13 | M | Blue Red |14 | N | Sync 1P.Shoot 3 |15 | O | 2P.Shoot 3 GND |16 | P | GND GND |17 | Q | GND +5V |18 | R | +5V