Genesis:Connector Pinouts
AV Out (Model 1)
Note: Connector is the female end at the console.
| Pin # | Description |
|---|---|
| 1 | Composite Video Out / Unused (French Mega Drive) |
| 2 | Ground |
| 3 | Audio Out |
| 4 | Green |
| 5 | 5V |
| 6 | Composite Sync |
| 7 | Red |
| 8 | Blue |
AV Out (Model 2 and 3)
This connector is also used in the Genesis Nomad, Mega Jet, 32X, CDX, and most X'Eye consoles. Ground is at the cable shroud.
Note: Connector is the female end at the console.
| Pin # | Description |
|---|---|
| 1 | Blue |
| 2 | 5V |
| 3 | Green |
| 4 | Composite Video |
| 5 | Composite Sync |
| 6 | Mono Audio |
| 7 | Red |
| 8 | Left Audio / Mono Audio (Genesis 3) |
| 9 | Right Audio / Unused (Genesis 3) |
Cartridge Port
Controller Port
Note: Female is connector at the console. Male is connector at the controller. Diagram pictured is of the connector at the controller end.
| Pin # | Description |
|---|---|
| 1 | Up/Button Z |
| 2 | Down/Button Y |
| 3 | Left/Ground/Button X |
| 4 | Right/Ground/Mode |
| 5 | 5V |
| 6 | Button B/A |
| 7 | Multiplexer Select |
| 8 | Ground |
| 9 | Button C/Start |
Expansion Port
EXT Port
This connector is only found on older model 1 consoles and all model 1 Japanese Mega Drive consoles, and is located on the rear. It is essentially identical to the controller ports, though is typically used to send serial data to the VDP instead of being used as an extra controller port. The most notable accessory to use this connector is the Mega Modem, which was only released in Japan.
Note: Diagram pictured is of the connector at the console end.
| Pin # | Description |
|---|---|
| 1 | Up |
| 2 | Down |
| 3 | Left/Ground |
| 4 | Right/Ground |
| 5 | 5V |
| 6 | Button B/A |
| 7 | Multiplexer Select |
| 8 | Ground |
| 9 | Button C/Start |