Common Problems - Dell P2319H Simplified Service Manual

6. Trouble Shooting Instructions

Common problems

The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common
symptoms
No Video/Power No picture
LED off
No Video/Power No picture or no
LED on brightness
Poor Focus Picture is fuzzy,
blurry, or ghosting
Shaky/Jittery Wavy picture or
Video fine movement
Missing Pixels LCD screen has
spots
What you
experience
• 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
pressed fully.
• Ensure that the correct input source is
selected in the
• Increase brightness & 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
• Perform Auto Adjust via OSD.
• Adjust the Phase and Pixel Clock
controls via OSD.
• Eliminate video extension cables.
• Reset the monitor to factory settings.
• Change the video resolution to the
correct aspect ratio.
• Perform Auto Adjust via OSD.
• Adjust the Phase and Pixel Clock
controls via OSD.
• Reset the monitor to factory settings.
• Check environmental factors.
• Relocate the monitor and test in
another room.
• Cycle p ower O n -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:
www.dell.com/support/monitors.
Possible solutions
menu.
Input Source
menu.
Input Source
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