Unison CMEd Corrupted Display

As rebooting sorted it, then it's probably nothing to be worried about.

These kinds of weird glyphs can turn up if the internal communication between the processor and the LCD display card gets interrupted or corrupted momentarily, putting the two 'out of sync' - once that has happened, the LCD needs resetting to get in back 'in sync' with the processor.
This has no effect on the rest of the system - it's purely the LCD itself getting confused.

If it recurs, then it's worth looking further into it - it's most likely to be dust and detritus affecting the communication between LCD module and the internal processors.

If you didn't already, it's probably worth opening up the CMEd and cleaning any dust or other detritus out - stuff does tend to collect in them after many years of being ignored!

I had this issue with my CEM+ modules, resetting didn't correct. It was a known issue of under sized part. Still get that issue, but restarting does correct. Whish I knew what those letters wanted to be. I love computer gibberish!

I had this issue with my CEM+ modules, resetting didn't correct. It was a known issue of under sized part. Still get that issue, but restarting does correct. Whish I knew what those letters wanted to be. I love computer gibberish!

I had this issue a couple of years ago at a high school. When the display went wonky the lights also stopped responding to the wall stations. There were obviously deeper issues.

IMHO: Legacy Unison processors should get a factory checkup after 10 years. Lets hope the Paradigms run a bit longer.