User’s Manual

3-9ASUS VN279 Series LCD Monitor
3.3 Troubleshooting (FAQ)
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Power LED is not ON
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.
The power LED lights amber and there is
no screen image
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.
Screen image is too light or dark Adjust the Contrast and Brightness
settings via OSD.
Screen image is not centered or sized
properly
Press the Button for 2-4 seconds
to automatically adjust the image (for VGA
mode only).
Adjust the H-Position or V-Position
settings via OSD.
Screen image bounces or a wave pattern is
present in the image
Make sure the signal cable is properly
connected to the monitor and the
computer.
Move electrical devices that may cause
electrical interference.
Screen image has color defects (white does
not look white)
Inspect the signal cable and make sure
that none of the pins are bent.
Perform All Reset via OSD.
Adjust the R/G/B color settings or select
the Color Temperature via OSD.
Screen image is blurry or fuzzy
Press the Button for 2-4 seconds
to automatically adjust the image (for VGA
mode only).
Adjust the Phase and Clock settings via
OSD.
No sound or sound is low Ensure that the HDMI cable is properly
connected to the monitor and the
computer.
Adjust the volume settings of both your
monitor and HDMI device.
Ensure that the computer sound card
driver is properly installed and activated.