If you hear noise from the speaker while watching TV, you can perform a sound test on the TV to check if the noise is coming from the TV.
If you don't hear any noise during the sound test, it may be due to an unstable broadcast reception or a malfunctioning peripheral device connected to the TV, such as a set-top box, game console, DVD player, Blu-ray player, and PC. Please check the connection status of the device.
If you experience the noise on particular channels, it may be due to an unstable broadcast reception.
In this case, please contact the broadcast service provider for assistance.
Try this
Perform a sound test to check if the same symptom occurs.
If the same symptom occurs, please contact our customer service center.
The method for performing the sound test differs depending on the TV model. Please refer to the instructions below.
For some models, the sound test function is not supported.
Smart TV (WEB OS)
Select [Home] → [Settings] → [View All Settings (Advanced Settings)] → [Sound] → [Sound Test].
Smart TV (NETCAST)
Select [Smart] or [Settings Menu] → [Settings] → [Customer Support] → [Sound Test].
General TV
Select [Settings Menu] → [Customer Support] (press the red button at the bottom of the remote control) → [Sound Test].
※ The volume-related settings and the display location may differ by the model of the set-top box.
This guide was created for all models, so the images or content may be different from your product.
