Anomalies with broadcast signals or the TV may lead to noise.
A sound test is a good way to self-test the TV condition. If the test yields a sound of good quality, then it may indicate that the noise is likely due to signals, not the TV itself.
In this case, it is advisable to contact your broadcast service provider for a signal test. (e.g., cable TV, Skylife, IPTV)
Try this
Are you experiencing noise in all channels?
➔ Go to [Settings] and start [Sound Test].
[2020] WebOS 5.0
Select [All Settings] in the [Settings] menu.
[Prior to 2019] WebOS 4.5
Select [All Settings] in the [Settings] menu.
The noise has nothing to do with product performance or reliability.
We control product quality through rigorous testing during the entire production, and a certain level of noise or lower cannot be accepted as a condition for product exchange or refund.
This guide was created for all models, so the images or content may be different from your product.