LG PF510Q Owner's Manual page 128

Troubleshooting Sound Issues
Please check the list below when you experience the following symptoms during use of
the product. It may not be a failure.
First of all, perform
check for any abnormalities in the projector.
If you are using a set-top box, turn it off, and then turn it back on.
Make sure that the set-top box is correctly connected to your projector.
The screen is fine, but it does not play any sound.
• 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.
(Q. Settings) →
•
Set [Sound Out] to [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.
There is no sound coming from one of the speakers.
(Q. Settings) →
•
Adjust the balance as necessary with the Navigation button in [Balance].
(Q. Settings) →
→ [Sound] → [Sound Out]
→ [Sound] → [Advanced Settings] → [Balance]
→ [Support] → [Sound Self-diagnosis] to
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