AGS Field Service Knowledge Base
Curve Monitor Black
The pic below is the AD board C50-00212 which is the bottom board on the monitor. If you have the same voltage as the picture and the monitor is black, you have the symptoms of a bad AD Board.
If you do not have voltage on those lines, the power board is bad at the top of the monitor.
AD Board replacement
For assistance email support@playags.com or call 1-877-358-6300