Dell 2709W Monitor - Manual (Page 37)

Video Problems
l Ensure that the power button is depressed fully.
No Video/ Power LED on No picture or no brightness l Increase brightness & contrast controls via OSD.
l Perform monitor self-test feature check.
l Check for bent or broken pins in the video cable connector.
Poor Focus Picture is fuzzy, blurry, or ghosting l Perform Auto Adjust via OSD.
l Adjust the Phase and Pixel Clock controls via OSD.
l Eliminate video extension cables.
l Reset the monitor to Factory Settings.
l Change the video resolution to the correct aspect ration (16:10).
Shaky/Jittery Video Wavy picture or fine movement l Perform Auto Adjust via OSD.
l Adjust the Phase and Pixel Clock controls via OSD.
l Reset the monitor to Factory Settings.
l Check environmental factors.
l Relocate the monitor and test in another room.
Missing Pixels LCD screen has spots l Cycle power on-off.
l Pixel that is permanently off is a natural defect that can occur in LCD technology
Stuck-on Pixels LCD screen has bright spots l Cycle power on-off.
l Pixel that is permanently off is a natural defect that can occur in LCD technology
Brightness Problems Picture too dim or too bright l Reset the monitor to Factory Settings.
l Auto Adjust via OSD.
l Adjust brightness & contrast controls via OSD.
Geometric Distortion Screen not centered correctly l Reset the monitor to Factory Settings.
l Auto Adjust via OSD.
l Adjust brightness & contrast controls via OSD.
NOTE: When using 'DVI-D', the positioning adjustments are not available.
Horizontal/Vertical Lines Screen has one or more lines l Reset the monitor to Factory Settings.
l Perform Auto Adjust via OSD.
l Adjust Phase and Pixel Clock controls via OSD.
l Perform monitor self-test feature check and determine if these lines are also in self
mode.
l Check for bent or broken pins in the video cable connector.
NOTE: When using 'DVI-D', the Pixel Clock and Phase adjustments are not available.
Synchronization Problems Screen is scrambled or appears torn l Reset the monitor to Factory Settings.
l Perform Auto Adjust via OSD.
l Adjust Phase and Pixel Clock controls via OSD.
l Perform monitor self-test feature check to determine if scrambled screen appears in self
test mode.
l Check for bent or broken pins in the video cable connector.
l Restart the computer in the safe mode.
Safety Related Issues Visible signs of smoke or sparks l Do not perform any troubleshooting steps.
l Contact Dell immediately.
Intermittent Problems Monitor malfunctions on & off l Ensure that the video cable connecting the monitor to the computer is connected properly
and is secure.
l Reset the monitor to Factory Settings.
l Perform monitor self-test feature check to determine if the intermittent problem occurs in
self-test mode.
Missing Color Picture missing color l Perform monitor self-test feature check.
l Ensure that the video cable connecting the monitor to the computer is connected properly
and is secure.
l Check for bent or broken pins in the video cable connector..
Wrong Color Picture color not good l Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending
to the application.
l Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color
Settings OSD if the Color Management is turned off.
l Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
Image retention from a static
image left on the monitor for a
long period of time Faint shadow from the static image
displayed appears on the screen l Use the Power Management feature to turn off the monitor at all times when not in use
more information, see
Power Management Modes ).
l Alternatively, use a dynamically changing screensaver.