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Electronic Theatre Controls Inc

CEM "Backup Mismatch" Error


CEM Classic is displaying an error that says "Backup Mismatch".


This could be caused by one processor playing a Backup Look that may not be matching the other racks in line.
You can clear this error simply by releasing the backup from playing.


  1. Press the "Backup" Button
  2. Press 3 for "Clear All"
  3. Hold up or down to change the cursor to "Yes"
  4. Press Enter
  5. If issues persist, you may need to reload the configuration from another processor.
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