15 GND (Pot common) +5V (Soundblaster: Midi RxD)
* Two analogue joysticks could be connected by using an Y-cable. The Fire signals are the same as for the normal (digital) joystick port. Joystick 1 buttons should be connected to Pin 2,4,6, and joystick 2 buttons to Pin 10,12,14. Like the digital [[Joystick Y-cables]] the analog Y-cable should have '''diodes''' in the button lines (there are no diodes between pin7/pins 7+14 and 4/2+10 the mainboard).
* The A/D inputs have an input range of 0V (data = 00) to 2.5V (data = 3Fh), and an input impedance of 180k to Vcc.