HDMI cables support CEC capability, enabling power control between products.
The power may turn on or off automatically due to a malfunction of the CEC function.
Causes and Symptoms
- The Auto Power function is on.
Try this
Does your TV turn on or off by itself?
➔ Go to the Settings menu and disable the [Auto Power] feature.
Going to [Auto Power] in the Settings menu
➔ [2022 WebOS22]
Press the button on the TV remote and select [All Settings] → [General] → [External Devices] → [HDMI Settings] → [SimpLink (HDMI-CEC)] → [On] → [Off].
1. Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.
2. Select [General] and then [External Devices].
3. Select [HDMI Settings].
4. Set [SimpLink (HDMI-CEC)] to Off.
※ In WebOS 6.0 or later, the Auto Power option is not available, and disabling SimpLink (HDMI-CEC) will make the controls from external devices invalid.
➔ [2020 WebOS5.0]
Press the button on the TV remote and select [All Settings] → [Connection] → [Device Connection Settings] → [SimpLink (HDMI-CEC)] → [On] → [Off].
※ Disable the TV power synchronization and automatic power standby mode on your set-top box.
For detailed instructions, please contact your set-top service provider.
[2021 WebOS6.0]
Press the button on the TV remote and select [All Settings] → [General] → [External Devices] → [HDMI Settings] → [SimpLink (HDMI-CEC)] → [On] → [Off].
[2019 WebOS4.5]
Press the button on the TV remote and select [All Settings] → [Connection] → [HDMI Device Connection] → [Auto Power] → [On] → [Off].
[2018 WebOS4.0]
Press the button on the TV remote and select [All Settings] → [General] → [SimpLink (HDMI-CEC)] → [Auto Power] → [On] → [Off].
[2017 WebOS4.0]
Press the button on the TV remote and select [All Settings] → [General] → [SimpLink (HDMI-CEC)] → [Auto Power] → [On] → [Off].
※ If your remote control does not have the [ ] button, press the Home [
] button, and select Settings [
] on the screen.
This guide was created for all models, so the images or content may be different from your product.
