Dell S2740l Car Video System User Manual


 
No Video/Power LED on No picture or no brightness Increase brightness & contrast controls via OSD.
Perform monitor self-test feature check.
Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
Ensure that the correct input source is selected via the Input Source Select menu.
Poor Focus Picture is fuzzy, blurry, or ghosting
Perform Auto Adjust via OSD.
Adjust the Phase and Pixel Clock controls via OSD.
Eliminate video extension cables.
Reset the monitor to Factory Settings.
Change the video resolution to the correct aspect ratio (16:9).
Shaky/Jittery Video Wavy picture or fine movement
Perform Auto Adjust via OSD.
Adjust the Phase and Pixel Clock controls via OSD.
Reset the monitor to Factory Settings.
Check environmental factors.
Relocate the monitor and test in another room.
Missing Pixels LCD screen has spots
Cycle power on-off.
Pixel that is permanently off is a natural defect that can occur in LCD technology.
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: support.dell.com.
Stuck-on Pixels LCD screen has bright spots
Cycle power on-off.
Pixel that is permanently off is a natural defect that can occur in LCD technology.
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: support.dell.com.
Brightness Problems Picture too dim or too bright
Reset the monitor to Factory Settings.
Auto Adjust via OSD.
Adjust brightness & contrast controls via OSD.
Geometric Distortion Screen not centered correctly
Reset the monitor to Factory Settings.
Auto Adjust via OSD.
Adjust horizontal & vertical controls via OSD.
NOTE: When using DVI-D/HDMI input, the positioning adjustments are not available.
Horizontal/Vertical Lines Screen has one or more lines
Reset the monitor to Factory Settings.
Perform 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 in the video cable connector.
Run the built-in diagnostics.
NOTE: When using DVI-D/HDMI input, the Pixel Clock and Phase adjustments are not available.
Synchronization Problems Screen is scrambled or appears torn
Reset the monitor to Factory Settings.
Perform Auto Adjust via OSD.
Adjust Phase and Pixel Clock controls via OSD.
Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.
Check for bent or broken pins in the video cable connector.
Restart the computer in the safe mode.
Safety Related Issues Visible signs of smoke or sparks
Do not perform any troubleshooting steps.
Contact Dell immediately.
Intermittent Problems Monitor malfunctions on & off
Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.
Reset the monitor to Factory Settings.
Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode.
Missing Color Picture missing color
Perform monitor self-test feature check.
Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.
Check for bent or broken pins in the video cable connector.
Wrong Color Picture color not good
Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending on the application.
Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings OSD if the Color Management
is turned off.
Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
Run the built-in diagnostics.
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
Use the Power Management feature to turn off the monitor at all times when not in use (for more information, see Power
Management Modes).
Alternatively, use a dynamically changing screensaver.