TI 99/4A, PinOut


Video NTSC (5Pin)


1: +12V DC
2:  --
3: Audio
4: Compo Video
5: --
U(κέλυφος): Ground

Video PAL (6Pin) 


1: +12V DC
2: Y
3: R-Y (Pr)
4: B-Y (Pb)
5: Audio
6: Ground



Joystick port

1, 6: --
2: joystick2 ground
3: UP
4: Fire button
5: LEFT
7: joystick1 ground
8: DOWN
9: RIGHT