Listen to see if the sound drops out or any other issues occur during the sound test.
If the sound test is clear, continue troubleshooting.
If the issue occurs during the sound test, the TV requires service.
Check for updates.
Check to see if there are any software updates available for your TV. Navigate to Settings > Support > Software Update. For more information, see our guide on updating your TV's software.
Inspect the connections.
Check the connections on the back of the TV and connected devices. Ensure that all cables are connected correctly and firmly. Disconnect and reconnect the cable.
Try a different port.
Try the connection in a different HDMI port if one is available.
Usually, if an HDMI port is defective, there are typically video drop outs as well as audio drop outs.
If the drop out stops, this means that the original port is defective and service is required.
*If the steps above do not resolve the issue, continue with the following steps*
Test the External Device Sound i.e. Blu-ray, Game Console, etc.
Update the software.
Check to see if there are software updates available for your external device. Consult the user's manual for your device for the details.
Check the connections.
Check the connections on the back of the TV and connected device. Ensure that all cables are connected correctly and firmly.
Also try connecting with different cables. If the audio drop outs stop, the cable is faulty and should be replaced.
Connect using a different port.
Usually, if an HDMI port is defective, there are video drop outs as well as audio drop outs.
If the audio drop outs stop, this is an indication that the original port is defective, and service is required. Please visit the Samsung Support Center to request service.
Connect a different device.
Connect a different device to the input experiencing drop outs using the same cables.
If the audio does not drop when another device is connected, the problem is with the device originally connected to the TV. Contact the manufacturer of that device.
If the issue is with a set top box, contact the provider for new equipment.
For set top boxes only, check for a weak signal.
Set top boxes (STB) can sometimes drop or lose transmitted signals because the signal is weak, causing an audio dropout. Contact the cable or satellite company for the following resolutions.
Boost the signal.
Remove older cable wiring and cable splitters and replace them with lower Db loss cabling and splitters.