Article ID : 00176478 / Last Modified : 08/04/2020

Troubleshooting the audio Bluetooth connection for 2017-2019 Android TVs

    IMPORTANT: This is a model-specific solution, view the Applicable Products and Categories for this article to verify that these specifications apply to your model.
     

    To learn about Bluetooth devices and TV models with Bluetooth connection availability, refer to the following FAQ:


    Can I use Bluetooth headphones, speakers, and Sound Bars with Android TV?

    Q1: There is no sound from the connected audio device.

    Q2: Sound from the audio device is interrupted or is not synchronized with the TV screen.
    Q3: Sound echoes.
    Q4: The volume of the Sound Bar cannot be changed by the TV remote control.
    Q5: An audio device connected via Bluetooth is not turned off when turning off the TV.
    Q6: The Sound Bar cannot be connected via Bluetooth.


    Q1: There is no sound from the connected audio device.
    A1: Check the following.

    1. The sound volume of the TV or connected device may be low. Check the volume level of each device.
    2. Check if the input of the connected device is set to Bluetooth.
      For details on the input mode, please refer to the manual of the connected device.
    3. The Bluetooth connection may be unstable. Perform the following steps.
      1. Press the Home button on the remote control.
      2. Press the Settings.
      3. The next steps will depend on your TV menu options:
        • Select Remote & Accessories — Bluetooth Settings. (Android 9)
        • Select Bluetooth Settings. (Android 8 or earlier)
      4. Disconnect the connected device from Registered devices, and connect again.
    4. Reset the connected device to the factory settings. For details, refer to the manual of the product.


    Q2: Sound from the audio device is interrupted or is not synchronized with the TV screen.
    A2: Check the following according to the symptom.

    When sound and images do not synchronize

    • This may occur depending on the connected Bluetooth device.
    • Set AV Sync to Auto or On. (Except for A1 Series)
      Perform the following steps.
      1. Press the Home button on the remote control.
      2. Select Settings.
      3. The next steps will depend on your TV menu options:
        • Select Display & Sound — Audio output — AV/Sync.
        • Select Sound — AV/Sync.
      4. Set to Auto or On.

        NOTE:
        • If set to Auto: When connecting to an audio device, it will reduce lag between the audio and video. (Excluding when Picture mode is set to Game/Photo/Graphics.)
        • If set to On: Always reduces lag between audio and video.
           
    • ​​​​​​​​​​​​​​Perform the following steps if this symptom occurs when viewing for a long time.
      1. Press the HOME button on the remote control.
      2. Select  Settings.
      3. The next steps will depend on your TV menu options:
        • Select Remote & Accessories  Bluetooth settings(Android 9)
        • Select Bluetooth Settings(Android 8.0 or earlier)

    When sound is interrupted or noise occurs

    Sound may be affected by the connection status or radio wave environment. Main causes may be the followings.

    • Placing a wireless LAN access point close to Bluetooth devices or the TV.
    • The Bluetooth devices and the TV are too far apart.
    • A microwave is in use.

    If the symptom is not improved, try a wired connection with HDMI or analog cables.


    Q3: Sound echoes.
    A3: This may occur when connecting HDMI and Bluetooth at the same time. In this case, disconnect Bluetooth and connect to devices with HDMI only.
    NOTE: For a stable connection, an HDMI connection is recommended.


    Q4: The volume of the Sound Bar cannot be changed by the TV remote control.
    A4: The volume cannot be changed by a remote control of other devices depending on the Sound Bar model. Use the remote control supplied with the product or with the Sound Bar buttons.

    This may also occur when connecting HDMI and Bluetooth at the same time. In this case, disconnect Bluetooth and connect to devices with HDMI only.
    NOTE: For a stable connection, an HDMI connection is recommended.


    Q5: An audio device connected via Bluetooth is not turned off when turning off the TV.
    A5: Connected devices cannot be turned off from the TV. Turn off the connected devices manually.

    NOTE:Depending on devices, you can use the function to turn the power off automatically when no signal is detected.

    Q6: The Sound Bar cannot be connected via Bluetooth.
    A6: If the Sound Bar and TV are connected using an HDMI cable, they cannot connect via Bluetooth because the HDMI connection has higher priority. Disconnect the HDMI cable before trying to connect via Bluetooth again. The following SONY Sound Bars can be connected via Bluetooth. Connection with other products is not guaranteed:

    • HT-SF200, HT-SF201
    • HT-XF9000
    • HT-ZF9
    • HT-X8500
    • HT-S350