SMS model 1 input issue

[Adamj91]

Hi, my SMS model 1 is displaying the same thing no matter what game or controller I use. In game the control is always a constant LEFT. Even when I unplug the controller is it always acting like its receiving LEFT input.....I even tried to resolder to D9 controller connector on the motherboard with no change.

For instance, when I play Grovellius, I get through the title and all, I am unable to move character Right since its automatically moving LEFT. I can jump, attack, just cant go foreword due to the faulty input control

Any help appreciated, thanks!!