**The Dolby eCMU was discontinued in early 2024, and there will be no further updates provided for this product.

 

If the eCMU isn't mapping at all, it is very likely that it doesn't receive any Dolby Vision metadata from the color corrector. In order to debug the root cause, check the following:

• check the SDI cabling and ensure that the SDI signal is present 
• Make sure your eCMU has been connected to the color grading host via ethernet, and that the IP address is correctly configured.
• Check the licensing status of the eCMU. There are two license files needed to use the eCMU. (Refer to the eCMU user manual and License Key Upload Instructions for more details).

          

          (The Licensing tab is a good clue to verify CMU license status.)

• Analyze one shot on the timeline to ensure that there is valid metadata being generated and sent from the color corrector to the eCMU.
• Is your CMU in 'pass-through' mode? If yes, switch to 'Normal' mode
• Is your CMU working in HDMI tunneling mode? If yes, switch to SDI mode
• Contact your CMU vendor for additional support if the above trouble shooting does not help.