I have an HMC778LP6CE that I have been using for almost two years without issue. Over the weekend, I had to turn off the power supplies that power it, and when I tried using it today, it is not working properly.After starting the program, selecting the device, and loading the reg file, I get the message "Lost communication" instead of the usual message (see screenshot). Also, the RDiv number is not what it should be, and cannot be changed. I also included a screenshot of the detailed settings.
I suppose it is possible that there was a power spike when turning it on, but that seems unlikely. The 5.5V pin is drawing the same amount of current as before, but I can't easily measure the current in the 15V pin. Please let me know what I can do to address this, or if you need any additional information.