A Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended solutions:

Problem

Solution

 

 

Power LED is not on.

Make sure the Power button is on, and the power cord is properly connected

to a grounded power outlet and to the monitor.

 

 

 

Screen is blank.

Connect the power cord. Turn on the power.

 

Connect the video cable properly. See “Setting Up the Monitor” for more

 

information.

 

Press a key on the keyboard or move the mouse to turn off the screen-

 

blanking utility.

Image appears blurred,

Press the Auto/OK button on the monitor front bezel. If this does not correct

indistinct, or too dark.

the image, press the Menu button to open the OSD menu, and adjust the

 

brightness and contrast scales.

Image is not centered.

Press the Menu button to access the OSD menu. Select Picture,

 

and then select Horizontal Position or Vertical Position to adjust the

 

position of the image.

Check Video Cable

Connect the monitor VGA or DVI signal cable to the signal connector on

appears on screen.

the computer. Be sure that the computer power is off while connecting the

 

video cable.

Input Signal Out of

Restart your computer and enter Safe Mode. Change your settings to a

Range appears on

supported setting (see the table in “Preset Video Modes” in Appendix B).

screen.

Restart your computer so that the new settings take effect.

Picture is fuzzy and has

Adjust the contrast and brightness controls.

ghosting, shadowing

Make sure that you are not using an extension cable or switch box. We

problem.

 

recommend plugging the monitor directly into the graphic card output

 

connector on the back of your computer.

 

The auto adjustment feature might fix this problem.

 

 

22 Appendix A Troubleshooting

ENWW

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HP S2021 20-inch manual Troubleshooting, Solving Common Problems, Problem Solution