Article ID : 00176465 / Last Modified : 26/07/2018

Troubleshooting for the Bluetooth connection with the audio device on Android TV released in 2017 and 2018.

Applicable Products and Categories of This Article

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: Sound of the audio device connected via Bluetooth is not output.
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: Sound of the audio device connected via Bluetooth is not output.
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.
  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. Press the Bluetooth Settings in the Network & Accessories category.
    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. Select Sound in the TV category.
    4. Select AV/Sync, then 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 long time.
    1. Press the HOME button on the remote control.
    2. Press the Settings.
    3. Press the Bluetooth Settings in the Network & Accessories category.
    4. Disconnect the connected device from Registered devices, and connect again.

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.

In such cases, make sure to place a wireless LAN access point far from Bluetooth devices or the TV, or place Bluetooth devices close to the TV.

If 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. Operate with 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.
NOTE: The sound bars are not sold in some countries. Also, some models are not sold even in countries where sound bars are sold.