Using the TV's internal speakers
[This feature is available only for models with built-in TV speakers.]
SettingsSoundSound OutInternal TV Speaker
Audio is played through the TV's internal speakers.
Using an external audio device
[Only available for models with an optical port]
SettingsSoundSound OutAudio Out (Optical)
TV audio is played through an external audio device connected to the optical port.
[This feature is available on certain models only.] SIMPLINK is supported.
Playing audio through the TV's internal speakers and external audio device simultaneously
[Only available for models with an optical port]
SettingsSoundSound OutInternal TV Speaker + Audio Out (Optical)
Audio is played through the TV’s built-in speakers and the audio device connected to the digital optical audio output port simultaneously.
Configuring digital sound output settings
[This feature is available on certain models only.]
SettingsSoundSound OutDigital Sound Out
Sets up Digital Sound Out.
Item | Sound Input | Digital Sound Output |
Auto | MPEG Dolby Digital Dolby Digital Plus HE-AAC DTS |
PCM Dolby Digital Dolby Digital Dolby Digital DTS |
PCM | All | PCM |
These settings are available only when Audio Out (Optical) / Internal TV Speaker + Audio Out (Optical) is selected.
Connecting and using LG audio device
[Only available for models with an optical port]
SettingsSoundSound OutLG Sound Sync (Optical)
Connect LG audio device with the
logo to the optical digital audio output port.
LG audio device allows you to enjoy rich powerful sound easily.

LG audio device allows you to enjoy rich powerful sound easily.
Using Headphone
[Only available for models with an earphone/headphone port]
SettingsSoundSound OutWired Headphones
Sound is output through the headphone connected to the earphone/headphone port.
If you connect headphones while the TV is powered on, it automatically detects the headphones and sounds through them.
To set sound out to headphone, some features related to the sound settings may be unavailable.