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3.3
Troubleshooting (FAQ)
Problem
Power LED is not ON
The power LED lights amber and
there is no screen image
Screen image is too light or dark
Screen image bounces or a
wave pattern is present in the
image
Screen image has color defects
(white does not look white)
No sound or sound is low
ASUS LCD Monitor MX27U Series
Possible Solution
• Press the
button to check if the monitor is in the
ON mode.
• Check if the power cord is properly connected to
the monitor and the power outlet.
• Check Power Indicator function in main menu OSD.
Select "ON" to turn on power LED.
• Check if the monitor and the computer are in the
ON mode.
• Make sure the signal cable is properly connected
the monitor and the computer.
• Inspect the signal cable and make sure none of the
pins are bent.
• Connect the computer with another available
monitor to check if the computer is properly
working.
• Adjust the Contrast and Brightness settings via
OSD.
• Make sure the signal cable is properly connected to
the monitor and the computer.
• Move electrical devices that may cause electrical
interference.
• Inspect the signal cable and make sure that none
of the pins are bent.
• Perform Reset via OSD.
• Select the appropriate Color Temperature via OSD.
• Adjust the volume settings of both your monitor and
computer.
• Make sure the computer sound card driver is
properly installed and activated.
• Check audio source. If the audio source comes
from HDMI or DisplayPort, make sure to set the
Bluetooth setting to Off.
3-14
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