(Side B) Parts Solder (Side A) ----------------------------------------------------------- Gnd | 1 | 1 | Gnd not used | 2 | 2 | Gnd not used | 3 | 3 | Gnd not used | 4 | 4 | Red Green | 5 | 5 | Blue Sync | 6 | 6 | Gnd (Video) Spkr+ | 7 | 7 | Gnd (Spkr-) Coin Return | 8 | 8 | Coin* Service Return | 9 | 9 | Service* P1 Start |10 |10 | not used P2 Start |11 |11 | not used P1 Right |12 |12 | not used P1 Left |13 |13 | not used P1 Missile |14 |14 | not used P2 Right |15 |15 | not used P2 Left |16 |16 | not used P2 Missile |17 |17 | not used not used |18 |18 | not used not used |19 |19 | not used (Coin Meter) +12V |20 |20 | not used Coin Meter |21 |21 | Gnd (Coin Meter) +5V |22 |22 | +5V
