Here’s a video about repairing the infamous cracked faceplate of a Euphonix Mc-Mix.
Repairing involves replacing the faceplate with a new, Avid branded black faceplate.
The process it straight forward, though there’s a couple of things to take care of, which are shown in the video.
Have fun, and let me know if this was helpful to you. If you have any questions, let me know by contacting me.