Here are a few steps you can take to try and get your external speakers working with your Smart TV:

1. Check to ensure your TV is fully connected to your external speakers. This includes checking wires and connections.
2. Check your Smart TV settings to see if the sound output is set to your external speakers.
3. Check that the volume on the TV is turned up and is not on mute.
4. Try switching off and unplugging both the TV and the external speakers.
5. Re-start the TV and the external speakers.

If these steps don’t resolve the issue, please contact a customer service representative for help.