Z Axis driver broken?

Hi All,
After having a completely working printer about three weeks ago, our printer was unleashed to a college student org and gets used all the time.

We’ve recently run into an issue where the Z axis section on the microcontroller will not issue any signals whatsoever when commands are given. We’ve tried swapping the Y axis motor and the Z axis motor connections and observed no issues with any of the motors when connected to other sockets.

That being said, it looks like the Z axis socket is dead most likely due to abuse on the part. Would it be a logical first step in everyone’s opinion to buy a new driver or does this sound like an over arching board problem? The driver is calibrated correctly at 0.425V +/- .005V

Thanks for any and all help!

P.S. We’re not letting all members use the printer now, so hopefully this will be my last ask for help on the forums!

Did you try swapping the driver cards?