Product Specific Problems
Universal Serial Bus (USB) Specific Problems
NOTE: When using DVI-D input, the positioning adjustments are not available.
Horizontal/Vertical Lines
Screen has one or more lines
lReset the monitor to Factory Settings.
lPerform Auto Adjust via OSD.
lAdjust Phase and Pixel Clock controls via OSD.
lPerform monitor self-test feature check and determine if these lines are also in self-test
mode.
lCheck for bent or broken pins in the video cable connector.
lRun the built-in diagnostics.
NOTE: When using DVI-D input, the Pixel Clock and Phase adjustments are not available.
Synchronization Problems
Screen is scrambled or appears
torn
lReset the monitor to Factory Settings.
lPerform Auto Adjust via OSD.
lAdjust Phase and Pixel Clock controls via OSD.
lPerform monitor self-test feature check to determine if the scrambled screen appears in
self-test mode.
lCheck for bent or broken pins in the video cable connector.
lRestart the computer in the safe mode.
Safety Related Issues
Visible signs of smoke or
sparks
lDo not perform any troubleshooting steps.
lContact Dell immediately.
Intermittent Problems
Monitor malfunctions on & off
lEnsure that the video cable connecting the monitor to the computer is connected
properly and is secure.
lReset the monitor to Factory Settings.
lPerform monitor self-
test feature check to determine if the intermittent problem occurs in
self-test mode.
Missing Color
Picture missing color
lPerform monitor self-test feature check.
lEnsure that the video cable connecting the monitor to the computer is connected
properly and is secure.
lCheck for bent or broken pins in the video cable connector.
Wrong Color
Picture color not good
lChange the Color Setting Mode in the Color Settings OSD to Graphics or Video
depending on the application.
lTry different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color
Settings OSD if the Color Management is turned off.
lChange the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
lRun the built-in diagnostics.
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
lUse the Power Management feature to turn off the monitor at all times when not in use
(for more information, see Power Management Modes).
lAlternatively, use a dynamically changing screensaver.
Specific Symptoms
What You Experience
Possible Solutions
Screen image is too small
Image is centered on screen,
but does not fill entire viewing
area
lCheck the Scaling Ratio setting in Image Setting OSD
lReset the monitor to Factory Settings.
Cannot adjust the monitor with
the buttons on the front panel
OSD does not appear on the
screen
lTurn off the monitor, unplug the power cord, plug it back, and then turn on the monitor.
lCheck whether the OSD menu is locked. If yes, press and hold the button above the
Power button for 10 seconds to unlock (for more information, see Menu Lock).
No input signal when user
controls are pressed
No picture, the LED light is blue
lCheck the signal source. Ensure the computer is not in the power saving mode by
moving the mouse or pressing any key on the keyboard.
lCheckwhetherthesignalcableispluggedinproperly.Re-plug the signal cable if
necessary.
lReset the computer or video player.
The picture does not fill the
entire screen.
The picture cannot fill the
height or width of the screen
lDue to different video formats (aspect ratio) of DVDs, the monitor may display in full
screen.
lRun the built-in diagnostics.
NOTE: When choosing DVI-D mode, the Auto Adjust function will not be available.
Specific Symptoms
What You Experience
Possible Solutions
USB interface is not working
USB peripherals are not
working
lCheck that your monitor is turned ON.
lReconnecttheupstreamcabletoyourcomputer.
lReconnecttheUSBperipherals(downstreamconnector).
lSwitch off and then turn on the monitor again.
lReboot the computer.
l
Some USB devices like external portable HDD require higher electric current; connect the
device directly to the computer system.
High Speed USB 2.0 interface is
slow.
High Speed USB 2.0
peripherals working slowly or
not working at all
lCheck that your computer is USB 2.0-capable.
l
Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port
isused.
lReconnecttheupstreamcabletoyourcomputer.
lReconnecttheUSBperipherals(downstreamconnector).
lReboot the computer.