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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
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.
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.
Common Problems
The following table contains general information about common monitor problems you might encounter.
CAUTION: Before you begin any of the procedures in this section, follow the Safety Instructions.
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.
or
NOTE: Self test feature check is not available for S-Video, Composite and Component video modes.
COMMON
SYMPTOMS
WHAT YOU
EXPERIENCE
POSSIBLE SOLUTIONS
No Video/ Power LED
off
No picture
l Check connection integrity at both ends of the video cable
l Electric outlet verification
l Ensure power button depressed fully
No Video/ Power LED
on
No picture or no
brightness
l Increase brightness & contrast controls via OSD
l Perform monitor self-test feature check
l Check for bent or broken pins
Poor Focus
Picture is fuzzy,
blurry or
ghosting
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
Shaky/Jittery Video
Wavy picture or
fine movement
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
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