LG 84WT70PS Owner's Manual page 54

54
TROUBLESHOOTING
The audio function does not work.
Problem
No sound?
Sound is too dull.
Sound is too low.
Screen color is abnormal.
Problem
Screen has poor color resolution
(16 colors).
Screen color is unstable or
mono-colored.
Do black spots appear on the
screen?
When I set Input Label to PC in
the Input List, some letters are
displayed with a different color
than the original color.
The operation does not work normally.
Problem
The power suddenly turned off.
y See if the audio cable is connected properly.
y Adjust the volume.
y See if the sound is set properly.
y Adjust the Clear Voice ll, Treble and Bass appropriately.
y Adjust the volume.
y Set the number of colors to more than 24 bits (true color) Select
Control Panel - Display - Settings - Color Table menu in Windows.
y Check the connection status of the signal cable. Or, re-insert the PC
video card.
y Several pixels (red, green, white or black color) may appear on the
screen, which can be attributable to the unique characteristics of the
LCD panel. It is not a malfunction of the LCD.
y For Windows 7, go to Start -> Control Panel -> Appearance and
Personalization -> Font and select Adjust ClearType text.
* If you are using a specific graphic card that supports the UHD
resolution, the problem may not be solved due to compatibility issues.
y Is the sleep timer set?
y Check the power control settings. Power interrupted
Resolution
Resolution
Resolution