If your control surface (CS) is faulty, you can try the following:

1. Swap cables

2. Swap USB ports

3. If CS has separate power cable, check the fuse. There is a spare fuse kept in a compartment in the fuse socket.

5. Check Device Manager

· Plug the CS into the TriCaster, and then exit to Windows.

· Next, go to Start > right-click on Computer > select Device Manager.

· From there, expand Universal Serial Bus Controllers > right-click on USB Serial Converter > select Uninstall > do not check "delete driver software" > click ok.

· Unplug the CS from the TriCaster, wait a few moments and then plug it back in. USB Serial Converter should reappear.

· Launch a session and see if the buttons light up.