One of our customers (I'm writing with their consent) has encountered an issue with the ADV7511W.
On a few custom PCBs they've used the device doesn't function anymore.
Replacing the device solves the problem.
They do not have a deterministic scenario how this happens, however on a few occasions shutting down the power to a display connected to the ADV7511W caused this malfunction.
They have a TVS device on the PCB (although I'm not sure if it is from the RClamp0524 series by Semtech).
Have you heard of such a phenomenon?
What would be your recommendation to identify root cause of the issue?
Did you experiment with other types of TVSs?