Dell S2715H User Manual page 46

Common
Symptoms
Geometric
Distortion
Horizontal/
Vertical Lines
Synchronization
Problems
Safety Related
Issues
Intermittent
Problems
Missing Color
Wrong Color
Image retention
from a static
image left on the
monitor for a long
period of time
46 | Troubleshooting
What You
Experience
Screen not • Reset the monitor to factory settings.
centered correctly • Auto Adjust via OSD.
• Adjust horizontal & vertical controls via OSD.
NOTE: When using HDMI input, the positioning
adjustments are not available.
Screen has one or • Reset the monitor to factory settings.
more lines • Perform Auto Adjust via OSD.
• Adjust Phase and Pixel Clock controls via OSD.
• Perform monitor self-test feature check and determine
• Check for bent or broken pins in the video cable
• Run the built-in diagnostics.
NOTE: When using HDMI input, the Pixel Clock and
Phase adjustments are not available.
Screen is • Reset the monitor to factory settings.
scrambled or • Perform Auto Adjust via OSD.
appears torn • Adjust Phase and Pixel Clock controls via OSD.
• Perform monitor self-test feature check to determine if
• Check for bent or broken pins in the video cable
• Restart the computer in safe mode.
Visible signs of • Do not perform any troubleshooting steps.
smoke or sparks • Contact Dell immediately.
Monitor • Ensure that the video cable connecting the monitor to
malfunctions on
& off • Reset the monitor to factory settings.
• Perform monitor self-test feature check to determine if
Picture missing • Perform monitor self-test.
color • Ensure that the video cable connecting the monitor to
• Check for bent or broken pins in the video cable
• Change the settings of the Preset Modes in the Color
Picture color not
good
• Adjust R/G/B value under Custom. Color in Color menu
• Change the Input Color Format to PC RGB or YPbPr in
• Run the built-in diagnostics.
Faint shadow from • Use the Power Management feature to turn off
the static image
displayed appears
on the screen • Alternatively, use a dynamically changing screensaver.
Possible Solutions
if these lines are also in self-test mode.
connector.
the scrambled screen appears in self-test mode.
connector.
the computer is connected properly and is secure.
the intermittent problem occurs in self-test mode.
the computer is connected properly and is secure.
connector.
menu OSD depending on the application.
OSD.
the Color menu OSD.
the monitor at all times when not in use (for more
information, see Power Management Modes).