Dell S2740L User's Guide - Page 49

Product Specific Problems, Universal Serial Bus USB Specific Problems

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Product Specific Problems Specific Symptoms Screen image is too small What You Experience Image is centered on screen, but does not fill entire viewing area Cannot adjust the monitor with the buttons OSD does not appear on the screen on the front panel No Input Signal when user controls are pressed No picture, the LED light is blue. The picture does not fill the entire screen. The picture cannot fill the height or width of the screen NOTE: When choosing DVI-D mode, the Auto Adjust function will not be available. Possible Solutions Check the Scaling Ratio setting in the Image Setting OSD. Reset the monitor to Factory Settings. Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor. Check whether the OSD menu is locked. If yes, press and hold the button above the Power button for 10 seconds to unlock (for more information, see Menu Lock). Check the signal source. Ensure the Computer is not in the power saving mode by moving the mouse or pressing any key on the keyboard. Check whether the signal cable is plugged in properly. Re-plug the signal cable if necessary. Reset the computer or video player. Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen. Run the built-in diagnostics. Universal Serial Bus (USB) Specific Problems Specific Symptoms USB interface is not working What You Experience USB peripherals are not working High Speed USB 2.0 interface is slow. High Speed USB 2.0 peripherals working slowly or not working at all Back to Contents Page Possible Solutions Check that your monitor is turned ON. Reconnect the upstream cable to your computer. Reconnect the USB peripherals (downstream connector). Switch off and then turn on the monitor again. Reboot the computer. Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer system. Check that your computer is USB 2.0-capable. Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port is used. Reconnect the upstream cable to your computer. Reconnect the USB peripherals (downstream connector). Reboot the computer.

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Product Specific Problems
Specific Symptoms
What You Experience
Possible Solutions
Screen image is too small
Image is centered on screen, but does not
fill entire viewing area
Check the Scaling Ratio setting in the Image Setting OSD.
Reset the monitor to Factory Settings.
Cannot adjust the monitor with the buttons
on the front panel
OSD does not appear on the screen
Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor.
Check whether the OSD menu is locked. If yes, press and hold the button above the Power button for 10 seconds to unlock
(for more information, see
Menu Lock
).
No Input Signal when user controls are
pressed
No picture, the LED light is blue.
Check the signal source. Ensure the Computer is not in the power saving mode by moving the mouse or pressing any key on
the keyboard.
Check whether the signal cable is plugged in properly. Re-plug the signal cable if necessary.
Reset the computer or video player.
The picture does not fill the entire screen.
The picture cannot fill the height or width
of the screen
Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen.
Run the built-in diagnostics.
NOTE:
When choosing DVI-D mode, the
Auto Adjust
function will not be available.
Universal Serial Bus (USB) Specific Problems
Specific Symptoms
What You Experience
Possible Solutions
USB interface is not working
USB peripherals are not working
Check that your monitor is turned ON.
Reconnect the upstream cable to your computer.
Reconnect the USB peripherals (downstream connector).
Switch off and then turn on the monitor again.
Reboot the computer.
Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer
system.
High Speed USB 2.0 interface is slow.
High Speed USB 2.0 peripherals working
slowly or not working at all
Check that your computer is USB 2.0-capable.
Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port is used.
Reconnect the upstream cable to your computer.
Reconnect the USB peripherals (downstream connector).
Reboot the computer.
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