LG 42LS53A Owner's Manual page 40

40
TROUBLESHOOTING
After-image appears on the product.
Problem
After-image appears when the
product is turned off.
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?
The operation does not work normally.
Problem
The power suddenly turned off.
If you use a fixed image for a long time, the pixels may be
y »
damaged. Use the screen-saver function.
When a dark image is displayed on the screen after an image
y »
with high contrast (black and white or gray), this may cause
image sticking. This is normal for LCD screen products.
See if the audio cable is connected properly.
y »
Adjust the volume.
y »
See if the sound is set properly.
y »
Select the appropriate equalizer sound.
y »
Adjust the volume.
y »
Set the number of colors to more than 24 bits (true color).
y »
Select Control Panel - Display - Settings - Color Table menu
in Windows.
Check the connection status of the signal cable. Or, re-insert
y »
the PC video card.
Several pixels (red, green, white, or black color) may appear
y »
on the screen, which can be attributable to the unique
characteristics of the LCD panel. This is not a malfunction of
the LCD.
Is the Timers set?
y »
Check the power control settings. Power interrupted.
y »
Action
Action
Action
Action