When you are using LG CineBeam Projector, the screen is fine, but it does not play any sound. What is the reason behind this? Keep on reading to find the solution to troubleshoot.
1. If you use a set-top box, there will be no sound if you have set the volume of the set-top box or your projector to 0 or enabled Mute. Set the volume to an
appropriate level.
2. Enter (Q. Settings) → [Sound] → [Sound Out]
Set [Sound Out] to [Optical Out Device + Projector Speaker] or [Use Projector Speaker] and check again. If you can hear the sound normally, check the
connection of the external speaker such as the sound bar and the settings of the external speaker.
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