Article ID : 00150806 / Last Modified : 11/04/2018

There is no sound when using a TV or audio system with the Audio Return Channel (ARC) feature.

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This solution is designed to assist when the ARC feature is not working and both the TV and audio system are compatible with the ARC feature .

To fix this issue, check these suggestions.

  • The TV or the audio system must have the latest software installed. 
  • Make sure the Control for HDMI option of both products is set to On in the menu systems.

    NOTES:

    • If model-specific information is needed to turn on the Control for HDMI option or determine if your product supports ARC, refer to the instructions supplied with the product. 
    • Make sure that a high-speed HDMI cable is being used and that it is securely connected to the HDMI ports labeled ARC on both products.
    • If only one of the products supports ARC, it is necessary to connect the products as shown in the diagram below to send sound from the TV to the audio system.

      Image

    • Some TVs with multiple HDMI inputs will only support the ARC feature on one of the inputs. In these cases the input will be marked with the letters ARC.
  • Perform a power reset on the TV and audio system, as follows:
    1. Turn off the TV and the audio system.
    2. Disconnect the power cords (mains lead) and HDMI cord from both the TV and audio system. Leave it disconnected for about a minute.
    3. Reconnect the HDMI cord to the ARC HDMI input of the TV and ARC HDMI out of the audio system, depending on the model of the audio system used. Some A/V receivers have Out A and Out B, so please make sure to connect the HDMI cord to the HDMI ARC out of the audio system that is labeled ARC.
  • If there are any third party external devices connected to the ARC HDMI input A/V receiver like a cable box, satellite receiver, or a gaming console, make sure to disconnect these devices and leave the connection between the TV and the audio system ( such as an A/V receiver or a Sound bar).

    NOTE: Third-party devices may cause the Control for HDMI function of the TV and the audio device to quit working.

  • For Android TVs, we can perform a Clear Data or Cache from External Input Services Application.
    The following is an example of operation with Android TVs manufactured on 2015.
    1. Press the HOME button on the remote.
    2. Select Settings.
    3. Under the TV category, select Apps.
    4. Select System apps.
    5. Select External Input Services.
    6. Select Clear data and choose OK.
    7. Select Clear cache and choose OK.