3RD AND 4TH PLAYER PGM PIN OUT
The JAMMA+ harness found in PGM boards is a 34 pin IDE connector. The following pinout shows the connector from the system side.
| Top row | Pin | Pin | Bottom row | 
|---|---|---|---|
| GND | 1 | 2 | Speaker + | 
| GND | 3 | 4 | Speaker + | 
| Blue | 5 | 6 | Green | 
| Red | 7 | 8 | GND | 
| GND | 9 | 10 | Sync | 
| Coin counter 1 | 11 | 12 | Coin counter 2 | 
| Test | 13 | 14 | Service | 
| Player 3 Button D | 15 | 16 | Player 4 Button D | 
| Player 3 Button C | 17 | 18 | Player 4 Button C | 
| Player 3 Button B | 19 | 20 | Player 4 Button B | 
| Player 3 Button A | 21 | 22 | Player 4 Button A | 
| Player 3 Right | 23 | 24 | Player 4 Right | 
| Player 3 Left | 25 | 26 | Player 4 Left | 
| Player 3 Down | 27 | 28 | Player 4 Down | 
| Player 3 Up | 29 | 30 | Player 4 Up | 
| Player 3 Start | 31 | 32 | Player 4 Start | 
| Player 3 Coin | 33 | 34 | Player 4 Coin | 
This port can be used with a JAMMA 4 player extension cable for two cabinets, or with controllers wired to the harness.
Used with permisson from http://junkerhq.net/xrgb/index.php?title=PolyGame_Master