The Audio Function Does Not Work; Screen Color Is Abnormal - LG M4224CG User Manual

Troubleshooting

The audio function does not work.

● No sound?
● Sound is too dull.
● Sound is too low.
● 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.
● The power suddenly turned off.
• See if the audio cable is connected properly.
• Adjust the volume.
• See if the sound is set properly.
• Select the appropriate equalize sound.
• Adjust the volume.

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.
• Is the sleep timer set?
• Check the power control settings.
Power interrupted.
• "CAUTION! FAN STOP!"
If the power is turned off after this message
appears, it means that the fan is out of order.
In this case, contact your local service center.
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