Dell C3422WE Посібник - Сторінка 15

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Common Problems

The following table contains general information about common monitor problems you

might encounter and the possible solutions:

Common

What You

Symptoms

Experience

No Video/

No picture

Power LED off

No Video/

No picture or no

Power LED on

brightness

Missing Pixels

LCD screen has

spots

Stuck-on Pixels LCD screen has

bright spots

Brightness

Picture too dim or

Problems

too bright

5. Trouble Shooting Instructions

Possible Solutions

• Ensure that the video cable connecting

the monitor and the computer is properly

connected and secure.

• Verify that the power outlet is functioning

properly using any other electrical equipment.

• Ensure that the power button is depressed

fully.

• Ensure that the correct input source is

selected in the

• Increase brightness and contrast controls via

OSD.

• Perform monitor self-test feature check.

• Check for bent or broken pins in the video

cable connector.

• Run the built-in diagnostics.

• Ensure that the correct input source is

selected in the

• Cycle power on-off.

• Pixel that is permanently off is a natural

defect

that can occur in LCD technology.

• For more information on Dell Monitor Quality

and Pixel Policy, see Dell Support site at:

https://

• Cycle power On-Off.

• Pixel that is permanently off is a natural

defect

that can occur in LCD technology.

• For more information on Dell Monitor Quality

and PixelPolicy, see Dell Support site at:

https://

• Reset the monitor to factory settings.

• Adjust brightness and contrast controls via

OSD.

Input Source

menu.

Input Source

menu.