LG 47LA6200 Owner's Manual page 96

To❐use❐the❐TV's❐speakers
❐ ❐
SMART❐ ❐➾❐Settings❐➙❐SOUND❐➙❐Sound❐Out❐➙❐TV❐Speaker
Sound is output through the TV speaker.
To❐use❐External❐Speakers
❐ ❐
SMART❐ ❐➾❐Settings❐➙❐SOUND❐➙❐Sound❐Out❐➙❐❐External❐Speaker❐
(Optical/HDMI❐ARC)
[Only available for models with an optical or HDMI (ARC) port]
Sound is output through the speaker connected to the optical port.
✎ SimpLink is supported.