Troubleshooting

Problems

 

Possible Solutions

Power LED is not ON

•

Check to see if the power switch is in the

 

 

ON position.

 

• Ensure that the Power Cord is connected.

 

 

 

No Picture

•

Check to see if the power switch is in the

 

 

ON position.

 

• Ensure that the Power Cord is connected.

 

• Ensure the video cable is securely

 

 

connected to the back of the monitor and

 

 

the computer.

 

• Move the mouse or press any key on the

 

 

keyboard to bring the monitor out of "active

 

 

off" mode.

 

 

 

Picture shows inappropriate colors

•

See "Color Adjustment" to adjust RGB

 

 

color or to select color temperature.

 

 

 

Picture bounces or a wave pattern

•

Move or switch off electrical devices that

is present in the picture

 

may be causing interference.

 

• Inspect the monitor's video cable and ensure

 

 

that none of the pins are bent.

 

 

 

Image is not sized or centered

•

Press select/auto key and the monitor will

properly

 

automatically optimize the position of your

 

 

display.

 

•

See "Position adjustment".

 

 

 

Caution: Do not attempt to service the monitor yourself or open the computer yourself. Please refer all servicing to qualified service personnel if the problems cannot be solved in "Troubleshooting" section.

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Acer AL2021 manual Troubleshooting, Problems Possible Solutions