Problem with picade joystiq

Hi all,I just recieved my picade today built it without to much trouble, all buttons working. Now we get to joystick, down wasn’t working so I swapped down wire for up and now ups not working.
Any suggestions

Thanks Rob

Hi its definitely down joystick that is not working just did retest all other buttons and directions give led flashes have changed wires round a couple of times same outcome.

After doing more checks Its not the joystick or wiring it definitely the picade board down that’s faulty.