Asus LS221H manual Troubleshooting FAQ, Problem, Possible Solution

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3.3Troubleshooting (FAQ)

Problem

Power LED is not ON

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.

The power LED lights amber and there is no • Check if the monitor and the computer are

screen imagein 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 two seconds to automatically adjust the image.

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

Inspect the signal cable and make sure that

not look white)

 

none of the pins are bent.

 

• Perform 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 two 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 audio cable is properly connected to the monitor and the computer

Adjust the volume settings of both your monitor and computer.

Ensure that the computer sound card driver is properly installed and activated.

3-6

Chapter 3: General Instruction

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Contents LS221 Series LCD Monitor E3828 First Edition April Contents Federal Communications Commission Statement Canadian Department of Communications StatementSafety information Conventions used in this guide Care & CleaningFollowing symptoms are normal with the monitor Where to find more information Asus websites Optional documentationViii Package contents WelcomeMonitor introduction Front viewStatus Description Rear connectors from left to rightBack view Product introduction Turning the monitor on Connecting the cablesUnfolding the monitor Adjusting the monitor Installing the monitor to a Vesa wall mount adapterHow to reconfigure OSD On-Screen Display menuOSD Function Introduction SpendidImage ColorInput Select System SetupOSD Setup Specifications summary Dimension WeightAccessories Regulation Approvals MechanicalPossible Solution Troubleshooting FAQProblem Supported operating modes PixelGeneral Instruction