Dell E228WFP Monitor - Manual (Page 34)

This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the signal is too high or too low for the monitor to
use. See
Monitor Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1680 X 1050 @ 60Hz.
Occasionally, no warning message appears, but the screen is blank. This could also indicate that the monitor is not synchronizing with the computer or that
the monitor is in a power save mode.
General Problems
The following table contains general information about common monitor problems you might encounter.
2: Analog Input
Cannot Display This Video Mode
Optimum Resolution 1680 x1050 60Hz
or
3: Digital Input
Cannot Display This Video Mode
Optimum Resolution 1680 x1050 60Hz
COMMON SYMPTOMS PROBLEM DESCRIPTION POSSIBLE SOLUTIONS
No Video/Power LED off No picture, monitor is dead Check connection integrity at the both ends of the video cable, verify that the
monitor and computer are plugged into a working electrical outlet, and that
you have pressed the power button.
No Video/Power LED on No picture or no brightness l Press the input select button in the front of the monitor and ensure the
correct input source is selected.
l Increase brightness & contrast controls.
l Perform monitor self-test feature check.
l Check for bent or broken pins on the end of the video cable.
l Reboot your computer and monitor.
Poor Focus Picture is fuzzy, blurry, or ghosting l Push Auto Adjust button.
l Adjust Phase and Clock controls via OSD.
l Eliminate video extension cables.
l Perform monitor reset.
l Lower video resolution or increase font size.
Shaky/Jittery Video Wavy picture or fine movement l Push Auto Adjust button.
l Adjust Phase and Clock controls via OSD.
l Perform monitor reset.
l Check environmental factors.
l Relocate and test in another room.
Missing Pixels LCD screen has spots l Cycle power on-off
l These are pixels that are permanently off and this is a natural defect
that occurs in LCD technology.
Brightness Problems Picture too dim or too bright l Perform monitor reset.
l Push Auto Adjust button.
l Adjust brightness & contrast controls.
Geometric Distortion Screen not centered correctly l Perform monitor reset on "Position Settings Only".
l Push Auto Adjust button.
l Adjust the centering controls.
l Ensure monitor is in proper video mode.
Horizontal/Vertical Lines Screen has one or more lines l Perform monitor reset.
l Push Auto Adjust button.
l Adjust Phase and Clock controls via OSD.
l Perform monitor self-test feature check and determine if these lines are
also in self-test mode.
l Check for bent or broken pins.
Sync Problems Screen is scrambled or appears
torn l Perform monitor reset.
l Push Auto Adjust button.
l Adjust Phase and 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.
l Boot up in the "safe mode".
LCD Scratched Screen has scratches or smudges l Turn monitor off and clean the screen.
l For cleaning instruction, see Caring for your Monitor.
Safety Related Issues Visible signs of smoke or sparks l Do not perform any troubleshooting steps.
l Monitor needs to be replaced.
Intermittent Problems Monitor malfunctions on and off l Ensure monitor is in proper video mode.
l Ensure video cable connection to computer and to the flat panel is
secure.
l Perform monitor reset.
l Perform monitor self-test feature check to determine if the intermittent
problem occurs in self-test mode.
Image Retention (from a static image Faint Shadow from the static image l Use the Power Management feature to turn off the monitor at all times