NSM --- COMPONENT | SOLDER ---------------------+---------------------- GND | 1 | A | GND GND | 2 | B | GND +5V | 3 | C | +5V 2P.Button 1 | 4 | D | +5V Coin 2 (NC) | 5 | E | Speaker Coin 1 (NC) | 6 | F | 2P.Button 2 | 7 | G | 2P.Up 2P.Down | 8 | H | 2P.Left 1P.Right | 9 | I | 1P.Left 1P.Up |10 | J | 1P.Down |11 | K | 1P.Button 3 1P.Button 1 |12 | L | 1P.Button 2 Service |13 | M | 1P.Start Coin 1 (NO) |14 | N | Coin 2 (NO) Counter 2 |15 | O | 2P.Start Green |16 | P | Red Sync |17 | Q | Blue -5V |18 | R | Speaker +12V |19 | S | 2P.Right -12V |20 | T | Counter 1 GND |21 | U | 2P.Button 3 GND |22 | V | Test