Dell 2407WFP User Manual page 35

Documentation
The following table contains general information about common monitor problems you might encounter.
COMMON WHAT YOU
SYMPTOMS EXPERIENCE
No Video/ Power No picture
LED off
No Video/ Power No picture or
LED on no brightness
Poor Focus Picture is
fuzzy, blurry
or ghosting
Shaky/Jittery Wavy picture
Video or fine
movement
Missing Pixels LCD screen
has spots
Stuck-on Pixels LCD screen
has bright
spots
Brightness Picture too
Problems dim or too
bright
Geometric Screen not
Distortion centered
correctly
Horizontal/Vertical Screen has
Lines one or more
lines
Sync Problems Screen is
scrambled or
appears torn
LCD Scratched Screen has
scratches or
smudges
Safety Related Visible signs
Issues of smoke or
sparks
Intermittent Monitor
Problems malfunctions
on & off
Missing Color Picture
missing color
Wrong Color Picture color
not good
http://support.dell.com/support/edocs/monitors/2407WFP/en/solve.htm
Check connection integrity at both ends of the video cable
Electric outlet verification
Ensure power button depressed fully
Increase brightness & contrast controls via OSD
Perform monitor self-test feature check
Check for bent or broken pins
Auto Adjust via OSD
Adjust Phase and Pixel Clock controls via OSD
Eliminate video extension cables
Perform monitor reset
Lower video resolution or increase font size
Auto Adjust via OSD
Adjust Phase and Pixel Clock controls via OSD
Perform monitor reset
Check environmental factors
Relocate and test in another room
Cycle power on-off
These are pixels that are permanently off and is a natural defect that occurs in LCD technology
Cycle power on-off
These are pixels that are permanently on and is a natural defect that occurs in LCD technology
Perform monitor reset on "Factory Reset"
Auto Adjust via OSD
Adjust brightness & contrast controls via OSD
NOTE: When using '2: DVI-D', the contrast adjustment is not available.
Perform monitor reset on "Display Reset"
Auto Adjust via OSD
Adjust brightness & contrast controls via OSD
Ensure monitor is in proper video mode
NOTE: When using '2: DVI-D', the positioning adjustments are not available.
Perform monitor reset on "Display Reset"
Auto Adjust via OSD
Adjust Phase and Pixel Clock controls via OSD
Perform monitor self-test feature check and determine if these lines are also in self-test mode
Check for bent or broken pins
NOTE: When using '2: DVI-D', the Pixel Clock and Phase adjustments are not available.
Perform monitor reset on "Display Reset"
Auto Adjust via OSD
Adjust Phase and Pixel Clock controls via OSD
Perform monitor self-test feature check to determine if scrambled screen appears in self-test mode
Check for bent or broken pins
Boot up in the "safe mode"
Turn monitor off and clean the screen
For cleaning instruction, see
Caring for Your
Do not perform any troubleshooting steps
Monitor needs to be replaced
Ensure monitor is in proper video mode
Ensure video cable connection to computer and to the flat panel is secure
Perform monitor reset on "Factory Reset"
Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode
Perform monitor self-test feature check
Check connection integrity at both end of the video cable
Check for bent or broken pins
Change the color to "PC Custom Color" or "MAC Custom Color"
Adjust R/G/B value of "PC Custom Color" or "MAC Custom Color"
POSSIBLE SOLUTIONS
Monitor.
Page 2 of 6
12/10/2007