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Electronic Theatre Controls Inc

How to Deep Clear a CEM3 Processor


The information in this post is provided to assist in troubleshooting. Perform work at your own risk. ENSURE ANY POWER FROM DEVICES HAS BEEN DISCONNECTED BEFORE SERVICING ANY EQUIPMENT. If you do not feel comfortable performing the work, please contact us or your local service center. Be aware that ETC and its Affiliates are not responsible for any damage or injury caused by service of our products by anyone other than us or our authorized service providers, and such damage is excluded from the product’s warranty.


How can you Deep Clear a Sensor3 Processor (CEM3)?


WARNING: Performing a Deep Clear on the CEM3 will completely erase the configuration Data from the CEM3 and the Sensor Rack Backplane.  Please save a copy of the Rack configuration before performing the steps below.


  1. Ensure Rack configuration information is saved to external media.
  2. Press and Hold [Setup].
  3. Press and Release [Reset].
  4. Continue to hold [Setup] until the "Deep Clear" screen appears.
  5. Choose OK.  


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