LG 47LA6900 User Manual page 202

Sound
❐ ❐
SMART❐ ❐➾❐Settings❐➙❐SUPPORT❐➙❐Sound❐Test
Try Sound Test first to verify that sound signal output is normal.
When the test sound is normal, check external device connections or broadcast
signals.
Problem
Screen display is on but no
sound.
For analog broadcast, stereo
is not clear or sound comes
from one speaker only.
• Check other TV channels.
• Make sure the TV Speaker
• In a poor reception area (areas with weak or unstable
signal) or if multi audio is not stable, select
Multi Audio.
• Adjust the Balance with the Navigation button.
Solution
is set to On.
Mono on