Picade PCB


Hi Guys

Looking for some help.

My Picade was fine till the other day when I was unable to use my joy pad and buttons. It seems like the PCB has stopped working for some unknown reason. The PCB light is flashing on the ON led, not sure if that indicates a fault? I have taken off the USB cable linking the PCB to the raspberry PI and tried it in my laptop with my mobile phone connected and proved the cable to be working. Also plugged in a keyboard into the raspberry PI and found the keyboard to work fine with the Picade.

I can only imagine that the PCB is at fault but extremely surprised that could be the case.
Could someone with experience help underline this issue.

Many thanks