Egg Venture 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 -5 | E | 5 | -5 +12 | F | 6 | +12 ------------ KEY ------------| H | 7 |------------ KEY ----------- | J | 8 | Coin Counter # 1 | K | 9 | L Speaker (-) | L | 10| L Speaker (+) R Speaker (-) | M | 11| R Speaker (+) Video Green | N | 12| Video Red Video Sync | P | 13| Video Blue Service Switch | R | 14| Video GND | S | 15| Coin Switch 2 | T | 16| Coin Switch 1 Start Player 2 | U | 17| Start Player 1 | V | 18| | W | 19| | X | 20| | Y | 21| | Z | 22| | a | 23| | b | 24| | c | 25| | d | 26| GND | e | 27| GND GND | f | 28| GND Gun Connector Pinout 1| +5 Volts 2| Gun OPTO Player 1 3| Gun OPTO Player 2 4| NOT USED 5| Gun Trigger Player 1 6| NOT USED 7| Gun Trigger Player 2 8| KEY 9| Ground Addition information for Sound & AMP hookup: Power AMP /| --------------------- / | | | -------| | Right Speaker [| Volume/Gain | | ----| | | R+|]--| | \ | [| BASS R-|]-----| \| | | [| Treble L+|]-----| /| | L-|]--| | / | | | | ----| | Left Speaker Pin #L (-) | | -------| | --------->|\ | \ | Pin #10(+) | | L I | \| --------->|/ M | | P | Pin #M (-) | U | --------->|\ T | Pin #11(+) | | R | --------->|/ RMT|]--| +12 | +12|]--+----------- To Power Source | GND|]-------------- --------------------- GND