user manual

3-5ASUS VK248 LCD Monitor
3.3 Troubleshooting (FAQ)
Problem Possible Solution
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.