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

 

There might be several issues that may cause the eCMU to return a "Waiting for input signal" response.  Below are some of the most frequent reasons for receiving this error.

Cable routing

• Check the SDI cable routing on the eCMU back panel.
• Make sure all SDI connectors are correctly installed.
  • If you're using an AJA dual Kona4, the lower mini BNCs are the inputs.

          

Configuration Tab

• Open the web browser console and navigate to the Configuration tab
• check that the signal format setting matches the input. 

          

CMU Signaling 

The eCMU ONLY accepts 12bit 444 RGB SDI signals. Make sure the SDI source and all devices in the signal path (splitter/router/matrix, etc.) are configured correctly.

If you are viewing in 4K resolution, make sure to use quad-link 3G SDI as this is the only supported SDI infrastructure

Sometimes, the CMU may lose response if you switch the SDI source to a different frame rate. In this instance, try a soft re-boot first, or, if that doesn't work, a hard re-boot of the eCMU.

Further Information

For more options, please refer to the CMU user manual.

Contact your CMU vender for more support if the above trouble shooting does not help.