Dell 2407WFP Monitor - Manual (Page 45)

Video Problems
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 is a natural defect that occurs in LCD technology
Stuck-on Pixels LCD screen has
bright spots l Cycle power on-off
l These are pixels that are permanently on and is a natural defect that occurs in LCD technology
Brightness Problems Picture too dim
or too bright l Perform monitor reset on "Factory Reset"
l Auto Adjust via OSD
l Adjust brightness & contrast controls via OSD
NOTE: When using '2: DVI-D', the contrast adjustment is not available.
Geometric Distortion Screen not
centered
correctly l Perform monitor reset on "Display Reset"
l Auto Adjust via OSD
l Adjust brightness & contrast controls via OSD
l Ensure monitor is in proper video mode
NOTE: When using '2: DVI-D', the positioning adjustments are not available.
Horizontal/Vertical
Lines Screen has one
or more lines l Perform monitor reset on "Display Reset"
l 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-test mode
l Check for bent or broken pins
NOTE: When using '2: DVI-D', the Pixel Clock and Phase adjustments are not available.
Sync Problems Screen is
scrambled or
appears torn l Perform monitor reset on "Display Reset"
l 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
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
& 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 on "Factory Reset"
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 Check connection integrity at both end of the video cable
l Check for bent or broken pins
Wrong Color Picture color not
good l Change the color to "PC Custom Color" or "MAC Custom Color"
l Adjust R/G/B value of "PC Custom Color" or "MAC Custom Color"
l Change the Color Format to "PC RGB" or "YPbPr" (for Video/DVI-HD inputs)
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
l Alternatively, use a dynamically changing screensaver
COMMON SYMPTOMS WHAT YOU EXPERIENCE POSSIBLE SOLUTIONS
No Video No signal indicator is displayed l Check Video Input Selection
¡ Composite: Yellow colored RCA jack
¡ S-Video: Typically a round 4 pin jack
¡ Component: Red, Blue, Green colored RCA jacks
Low Quality DVD
playback Picture not crisp and some color
distortion l Check DVD connection
¡ Composite gives good picture
¡ S-Video gives better picture
¡ Component: Red, Blue, Green colored RCA jacks