You may experience symptoms such as image duplication and afterimages in a specific channel, sometimes caused by weak broadcast signals and not indicative of a product defect.
Causes and Symptoms
- Weak broadcast signals are the problem.
Try this
Are you seeing duplicate images on every channel?
➔ Go to [Settings] and start [Picture Test] to check if the picture works normally.
WebOS 5.0
Select [All Settings] in the [Settings] menu.
[Prior to 2019] WebOS
Select [All Settings] in the [Settings] menu.
If the problem does not occur in the picture test, please contact the set-top service provider. (e.g., cable TV, Skylife, IPTV)
WebOS How to check signal strength
Press the button on the TV remote and select [All Settings] → [Channels] → [Channel Search] → [Manual Channel] → [Cable DTV].
Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.
Select [Channels],
① [Channel Tuning], ② [Manual Tuning], and ③ [Cable DTV] in the specified order. (Select when using a cable TV)
You can see the signal strength and quality of the channel you are watching.
If the signal strength changes by more than 50% or the signal quality changes by more than 30%, it indicates a weak broadcast signal.
In such a case, please contact your property management office or broadcast service provider.
If the problem persists in the picture test, please contact LG Electronics Service Center.
This guide was created for all models, so the images or content may be different from your product.
