Common Problems - Dell P2225H User Manual

Common problems

The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common
symptoms
No video/power
LED off
No video/power
LED on
Poor focus
What you
experience
No picture • Ensure that the video cable connecting the
• Verify that the power outlet is functioning
• Ensure that the power button is pressed
• Ensure that the correct input source is
No picture or • Increase brightness and contrast controls
no brightness
• Perform monitor self-test feature check.
• Check for bent or broken pins in the video
• Run the built-in diagnostics. For more
• Ensure that the correct input source is
Picture is • Perform Auto Adjust through OSD.
fuzzy, blurry,
• Adjust the Phase and Pixel Clock controls
or ghosting
• Eliminate video extension cables.
• Reset the monitor to factory settings.
• Change the video resolution to the correct
Possible solutions
monitor and the computer is properly
connected and secure.
properly using any other electrical
equipment.
fully.
selected in the Input Source
using the OSD.
cable connector.
information, see Built-in
selected in the Input Source
through OSD.
aspect ratio.
Troubleshooting
menu.
diagnostics.
menu.
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