1) Check volume and mute

• Make sure the TV isn’t muted and the volume isn’t set to 0.
• Press Volume + a few times, then press Mute once to toggle mute off.

2) Confirm if it happens on everything

• Test at least two different apps/channels (for example: Live TV + a streaming app).
• If the issue only happens in one app or one title, the content/app may be the cause. Try another title, restart the app, or check your internet connection.

3) Check external device and cable connections (if used)

If you’re using a cable box, streaming device, game console, DVD/Blu-ray player, etc.:

• Make sure the device is powered on and not muted.
• Check that all cables are fully seated on both ends.
• If using red/white audio cables, confirm:
• Red = Right (R)
• White = Left (L)
• If using DVI or Component (YPbPr) video, those connections may require separate red/white audio cables for sound.
• If the external device has its own remote, raise the volume there too.
• If using HDMI, please make sure both ends are connected firmly.
• If using HDMI, also try swapping it out for a different HDMI cable.

4) Set the TV audio mode to Auto (Stereo) 

• Press Home on your remote.
• Select Settings.
• Select Audio.
• Select Audio mode.
• Highlight Auto (Stereo).
• Press OK to save.

Tip

If you’re using a soundbar or receiver, make sure your TV’s audio is set to the correct output (for example, HDMI ARC/eARC or Optical) and that the external audio device is on the correct input.