LG 50PM4700 User Manual page 37

✎ This function works only on devices with the SIMPLINK logo (
Make sure that the external device has a SIMPLINK logo.
✎ To use SIMPLINK function, use a high-speed HDMIⓇ cable (with CEC, or
Consumer Electronics Control feature added) and No. 13 pin connected for
information exchange between devices.
✎ Turn on or select the media of a device with home theater features to see the
speaker switch to
✎ Connect with an Optical cable (sold separately) to use
✎ Switching to external input causes devices operating with SIMPLINK to stop.
✎ Use of a third-party device with HDMI-CEC features may cause malfunctions.
HT Speaker.
HT Speaker.
).