It has been observed that some LG televisions randomly power “off” by themselves automatically. A common factor with most incident reported featured a BOSE sound bar connected to these LG televisions. Further customer incidents involved other peripherals featuring HDMI-CEC (Consumer Electronics Command) such as Amazon FireStick.
Although the issue is created by the external audio equipment, it directly affects the LG television in responding inadequately.
To resolve this issue, have the customer disable the BOSE sound bar’s “AUTO-OFF TIMER” function from their “BOSE SoundTouch” Mobile App.
Should you experience difficulties finding and disabling that function on your SoundTouch sound bar, please contact BOSE Customer Support.
Incident replicated at the factory. It so happens that when a BOSE sound bar is connected to an LG TV and not being operated, LG TV AUDIO SOUND OUT option set to TV INTERNAL SPKR or HEADPHONE, after 20 minutes of viewing TV, the sound bar, being completely inactive, sends a HDMI CEC command to the television to go into “stand-by” mode, therefore powering “off” the TV.
The BOSE sound bar features “AUTO-OFF TIMER” function which through HDMI connectivity and CEC commands instruct all interconnected peripherals to shut down if sound bar inactivity has been detected after 20 minutes.
Note : To disable the auto-off, use the SoundTouch app.
If you do not press any button for 4 hours after the TV is turned on by a feature such as Power On Timer , the TV will get turned off automatically. To ensure the TV does not automatically turn off set Auto Power Off after 4 Hours to Off. Some models may not support this option.
This guide was created for all models, so the images or content may be different from your product.
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