A newly installed AV system is experiencing intermittent loss of video on one display.

Before swapping hardware or updating firmware, the first step in any troubleshooting scenario is to check physical connections. Loose or improperly seated cables are one of the most common causes of intermittent signal loss.

“Physical inspection is the first troubleshooting step, especially for signal loss. Cable reseating often resolves intermittent issues.”

— CTS Exam Guide, Troubleshooting Methodologies