LG Flatron L4200A User Manual page 42

Troubleshooting
The audio function does not work.
No sound?
No sound is available when the
PIP/POP/PBP mode is engaged.
Sound is too dull.
Sound is too low.
The screen size function in the OSD menu does not work.
The screen size function in the OSD
menu does not work.
Screen color is abnormal.
Screen has poor color resolution
(16 colors).
Screen color is unstable or mono-
colored.
Do black spots appear on the
screen?
• See if the audio cable is connected properly.
• Adjust the volume.
• See if the sound is set properly.
• See if the Sound is set to On in the PIP/POP/PBP
menu.
• Select the appropriate treble sound.
• Select the appropriate bass sound.
• Adjust the volume.
• See if the PIP/POP/PBP function is in use. If the
PIP/POP/PBP function is in use, the screen size
function may not work.
• Set the number of colors to more than 24 bits (true
color)
Select Control Panel – Display – Settings – Color
Table menu in Windows.
• Check the connection status of the signal cable.
Or, re-insert the PC video card.
• 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.
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