Bubble 2000 - (c) 1998 Tuning Bubble 2000 JAMMA Pinout Main Jamma Connector Solder Side | Parts Side ------------------------------------------------------------------ GND | A | 1 | GND GND | B | 2 | GND +5 | C | 3 | +5 +5 | D | 4 | +5 | E | 5 | +12 | F | 6 | +12 ------------ KEY ------------| H | 7 |------------ KEY ----------- | J | 8 | Speaker R (-) | K | 9 | Speaker R (+) Speaker L (-) | L | 10| Speaker L (+) | M | 11| Video Green | N | 12| Video Red Video Sync | P | 13| Video Blue | R | 14| Video GND | S | 15| Coin Switch 2 | T | 16| Coin Switch 1 Player 2 Start | U | 17| Player 1 Start Player 2 Up | V | 18| Player 1 Up Player 2 Down | W | 19| Player 1 Down Player 2 Left | X | 20| Player 1 Left Player 2 Right | Y | 21| Player 1 Right Player 2 Button 1 | Z | 22| Player 1 Button 1 Player 2 Button 2 | a | 23| Player 1 Button 2 Player 2 Button 3 | b | 24| Player 1 Button 3 | c | 25| | d | 26| GND | e | 27| GND GND | f | 28| GND BrianT