Dell 2407WFP-HC - UltraSharp - 24" LCD Monitor User Manual - Page 43
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Solving Problems
Dell™ 2407WFP-HC Flat Panel Monitor
Monitor Specific Troubleshooting
Common Problems
Video Problems
Product Specific Problems
Universal Serial Bus (USB) Specific Problems
Dell™ Soundbar (Optional) Troubleshooting
Card Reader Troubleshooting
CAUTION:
Before you begin any of the procedures in this section, follow the
Troubleshooting the Monitor
Self-Test Feature Check
Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly
connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove both Digital (white connector) and the Analog (blue
connector) cables from the back of computer.
3. Turn on the monitor.
The floating dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly.
While in self-test mode, the power LED remains green. Also, depending upon the selected input, one of the dialogs shown below will continuously
scroll through the screen.
4. This box also appears during normal system operation if the video cable becomes disconnected or damaged.
5. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your video controller and computer system, because your monitor is
functioning properly.
NOTE:
Self test feature check is not available for S-Video, Composite and Component video modes.
Common Problems
The following table contains general information about common monitor problems you might encounter.
COMMON
WHAT YOU
SYMPTOMS
EXPERIENCE
No Video/ Power LED
No picture
off
No Video/ Power LED
No picture or no
on
brightness
Poor Focus
Picture is fuzzy,
blurry or
ghosting
Shaky/Jittery Video
Wavy picture or
fine movement
Missing Pixels
LCD screen has
spots
Safety
or
Check connection integrity at both ends of the video cable
l
Electric outlet verification
l
Ensure power button depressed fully
l
Increase brightness & contrast controls via OSD
l
Perform monitor self-test feature check
l
Check for bent or broken pins
l
Auto Adjust via OSD
l
Adjust Phase and Pixel Clock controls via OSD
l
Eliminate video extension cables
l
Perform monitor reset
l
Lower video resolution or increase font size
l
Auto Adjust via OSD
l
Adjust Phase and Pixel Clock controls via OSD
l
Perform monitor reset
l
Check environmental factors
l
Relocate and test in another room
l
Cycle power on-off
l
These are pixels that are permanently off and is a natural defect that occurs in LCD technology
l
Instructions.
POSSIBLE SOLUTIONS