I put all the parts in the PlayChoice cabinet because the monitors were already mounted in it. The referee sounds good, but I thought there was cheering and crowd noise that I don't hear. The top monitor is also missing the Red channel.

I moved the top monitor signal to the bottom monitor and the "missing red" travelled with the cable. That means the monitor is not the problem, the cable or signal is the problem. I will have to check the cable and connection in the edge connector.