Find helpful information about your LG Product through our Help Library. Find helpful information about your LG Product through our Help Library.

Help library

Find helpful information about your LG product

LG Optical Audio or Multi-channel Audio Output

  • Troubleshooting
LG Optical Audio or Multi-channel Audio Output LG Optical Audio or Multi-channel Audio Output

The Optical Digital Audio Output or HDMI/ARC Multi-channel Audio Output is available as PCM or Auto. DTS Audio is not supported on current LG Televisions.


 

  • PCM - Used for simple systems, sound bars or 2.1 systems.
  • Auto - Used for Dolby TM 5.1 systems.

 

To set the Sound Out mode, follow the steps below.


1.

Press the SMART button Smart Button on the remote control and select Settings > SOUND > Sound Out, then press Wheel or Enter.


  External Speaker

2.

Depending on the method of connection for external audio, this will be either: Optical Digital Audio Output (Optical cable) or HDMI/ARC (HDMI cable). Both of these can output either: 2 channel stereo sound (PCM) or multi-channel Dolby 5.1 digital sound.


3.

For either the Optical Digital Audio Output or HDMI/ARC Multi-channel Audio Output, select External Speaker and then select either PCM or Auto as the Digital Sound Out.


Sound Out

4.

To use an HDMI cable, HDMI 1 must be used on the TV, and the external sound system must support ARC (Audio Reverse Channel). Select  ARC Mode to ON.


5.

Select Close when finished.


Back to Top
*Required question

Related Help Library

See more