Available at Vectrex console.
Pinout
9 pin D-sub, countersunk
| Pin |
Description
|
| 1 |
Button 1
|
| 2 |
Button 2
|
| 3 |
Button 3
|
| 4 |
Button 4
|
| 5 |
Horizontal Pot
|
| 6 |
Vertical Pot
|
| 7 |
+5V
|
| 8 |
GND
|
| 9 |
-5V
|
The joystick potentiometers work by voltage division between -5V and +5V.
Actually, it uses a 3.5kOhm resistor between -5V and each game pot and a
10kOhm trim pot between +5V and each game pot to make it more like -3.4V to 3.4V.
Vertical Pin 6:
| Voltage |
Direction
|
| -3.4 V |
Down
|
| 0 V |
Center
|
| +3.4 V |
Up
|
Horizontal Pin 5:
| Voltage |
Direction
|
| -3.4 V |
Left
|
| 0 V |
Center
|
| +3.4 V |
Right
|
Contributions
Sources