LG 42LN570T User Guide

Page of 201
GP4
eng
 
Sound
SMART 
 ➾ 
Settings
 ➙ 
SUPPORT
 ➙ 
Sound Test
First run a Sound Test to verify that the sound signal output is normal.
If there is no problem with the test sound, check connected external devices and 
the broadcast signal.
Problem
Solution
Screen display is on but there 
is no sound.
•  Check other TV programmes.
•  Ensure the 
TV Speaker
 is set to 
On
.
For an analogue broadcast, 
stereo is not clear or sound 
comes from one speaker only.
•  In a poor reception area (areas with weak or unstable 
signals) or if Multi Audio is not stable, select 
Mono
 on 
Multi Audio
.
•  Adjust the Balance using the Navigation button.