LG L172WT Manual page 40

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 TV function does not work.
The TV signal is not being received.
The "IMAGE SIZE" function in the OSD menu does not work.
The "IMAGE SIZE" function in the
OSD menu does not work.
Screen has poor color resolution (16
colors).
Screen color is unstable or mono-
colored.
Do black spots appear on the
screen?
Troubleshooting
• 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 you have selected the proper channel
mode.
• Use the automatic channel setup function.
• See if the TV antenna is properly connected.
• See if the PIP/POP/PBP function is in use. If the
PIP/POP/PBP function is in use, the "IMAGE
SIZE" function may not work.
Screen color is abnormal.
• 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.
A39