arcade:vga_connector
VGA Connector
The VGA connector is widely used in arcade machines, especially in the pst-JAMMA JVS era.
Pin 9 has been used for several things in the VGA connector's history. Originally this was the KEY pin, which helped orient the connector. In 1987, IBM started pushing 12 volts through it. In 1996 VESA redefined pin 9 as +5V.
If your VGA cable heats up when used on a Naomi, it probably has pin 9 wired to ground, either in the cable or at the receiving end.
| Pin | Function | Pin | Function | Pin | Function |
|---|---|---|---|---|---|
| 1 | Red | 6 | Ground | 11 | |
| 2 | Green | 7 | Ground | 12 | |
| 3 | Blue | 8 | Ground | 13 | H Sync |
| 4 | 9 | +5V | 14 | V Sync | |
| 5 | Ground | 10 | Ground | 15 |
Some of the unlabeled pins may have additional functions (such as monitor ID, etc) but for Naomi use, they're not important. If you need to know the function of those pins, you can find them on a standard VGA pinout.
arcade/vga_connector.txt · Last modified: by NFG