Help library: [LG OLED TV Screen] The screen flickers, accompanied by a scratchy sound.| LG PH

Causes and Symptoms The HDMI connection to your set-top box is bad. The broadcast signal is weak. Try this Have you checked the HDMI cable? ➔ Try reconnecting the HDMI cable to the set-top box. Reconnecting the HDMI cable to the set-top box Turn off the power of the TV and set-top box, disconnect the HDMI cable on the back of the TV, and reconnect it. Also, remove the HDMI cable from the set-top box and reconnect it, if feasible. It is recommended to use an authentic HDMI cable to connect your TV to a set-top box. (Version 2.0) Does the screen flicker in all channels? ➔ Go to [Settings] and start [Picture Test] to check if the picture works normally. Running [Sound Test] in the Settings menu WebOS 5.0 [2020 WebOS 5.0] Press the button on the TV remote and select [All Settings] → [Customer Support] → [Additional Settings] → [Picture Test]. Turn on the TV and press the [Settings] button on your TV remote. Select [All Settings] in the [Settings] menu. ① Select [Customer Support] and then ② [Additional Settings]. ③ Select [Picture Test] in [Additional Settings]. ④ Perform [Picture Test] to check the screen condition. [2019 or before] WebOS [2019 WebOS or before] Press the button on the TV remote and select [All Settings] → [Picture] → [Picture Test]. Have you checked the antenna and cable TV connections? ➔ Please check the signal strength in the TV menu. How to check the signal strength in the TV menu 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 Search] → ② [Manual Channel] → ③ [Cable DTV]. (Select when using a cable TV) ④ You can see the signal strength and quality of the channel you are watching. If there is a change of more than 30% in signal strength or signal quality, it means that the broadcast signal is unstable. In this case, contact your property management office or broadcast service provider. Check the antenna connection ※ If the problem persists, please contact LG Electronics service technician for further troubleshooting support.This guide was created for all models, so the images or content may be different from your product.

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[LG OLED TV Screen] The screen flickers, accompanied by a scratchy sound.

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