BenQ XL2720T user manual Troubleshooting

Page 57

No image can be seen.

Is the prompt on the display illuminated in green?

If the LED is illuminated in green and there is a message Out of Range on the screen, this means you are using a display mode that this monitor does not support, please change the setting to one of the supported mode. Please read the “Preset display modes” section from the link "Adjusting the Screen Resolution".

Faint shadow from the static image displayed is visible on the screen.

• Activate the power management function to let your computer and monitor go into a low power "sleep" mode when not actively in use.

• Use a screensaver to prevent the occurrence of image retention.

Is the prompt on the display illuminated in orange?

If the LED is illuminated in orange, the power management mode is active. Press any button on the computer keyboard or move the mouse. If that does not help, check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support.

Is the prompt on the display not illuminated at all?

Check the power supply mains socket, the external power supply and the mains switch.

The image is distorted, flashes or flickers.

Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

You are running the monitor at its native resolution, but the image is still distorted.

Images from different input sources may appear distorted or stretched on the monitor running at its native resolution. To have the optimal display performance of each type of input sources, you can use the Display Mode function to set a proper aspect ratio for the input sources. See Display Mode on page 47 for details.

The image is displaced in one direction.

Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

The OSD controls are inaccessible.

To unlock the OSD controls when it is preset to be locked, press and hold any key for 10 second.

Troubleshooting 57

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Contents XL2420T / XL2420TX XL2720T Care And Cleaning Power SafetyCopyright DisclaimerBenQ ecoFACTS Table of Contents Need more help? CD-ROM Getting startedUSB Cable Pre-installed, can be removedVideo Cable D-Sub Video Cable DVI-D Dual LinkGetting to know your monitor Front viewBack view Getting to know your monitor How to assemble your monitor hardware Attach the monitor baseXL2420T / XL2420TX How to assemble your monitor hardware How to assemble your monitor hardware Connect the PC video cable Connect USB devices Connect the headphonesConnect the S Switch to the monitor Connect the power cable to the monitorOrganize the cables Connect-to and turn-on the power How to assemble your monitor hardware Prepare the monitor and area How to detach the stand and the baseRemove the monitor stand Remove the monitor baseHow to assemble your monitor hardware Then detach the base from the stand XL2720T Adjusting the monitor height Pivot the display Rotating the monitorFully extend the monitor and tilt it Rotate the monitor 90 degrees clockwise as IllustratedAdjust the monitor to the desired viewing angle Viewing angle adjustmentRemove the screws on the back cover Using the monitor wall mounting kitGetting the most from your BenQ monitor Click Finish Restart the computer How to install the monitor on a new computerHow to upgrade the monitor on an existing computer Select Properties from the menu Click the Hardware tab How to install on Windows 8 system selected models onlyHow to install on Windows 7 system Click the Monitor tab and the Properties button How to install on Windows Vista systemsSystem requirements How to watch 3D content on your monitorSafety information for watching 3D content Control panel How to adjust your monitorS Switch Gamer 2 Press to switch to Gamer 2 Picture Mode ButtonGamer 3 Press to switch to Gamer 3 Picture Mode Button Basic menu operation To change the default settings, see Customizing By default, the key is the hot key for Display ModeFor Down/Decrease adjustment By default, the key is the hot key for Smart ScalingInitial setup for playing games How to adjust your monitor Setting up your own game mode Picture optimizationCustomizing the hot keys Adjusting display mode Downloading more game modes using Game Mode LoaderUsing Instant Mode Using Smart ScalingAdjust the value You can resize your display by Smart ScalingNavigating the main menu Adjusts the horizontal position of the screen image Adjusts the vertical position of the screen imageDisplay menu Phase Adjusts the degree of difference between darkness Lightness Adjusts the brightness during 3D playback During 3DPicture menu During 3D PlaybackViewed with natural coloring. This is Factory default color Adjusts the tone luminance. The default value is 3Adjusts the degree of how we perceive colors Adjusts the purity degree of colorsPicture Advanced menu Mode from Picture Mode. The screen will be divided into Applies customized display settingsThis feature is provided to allow aspect ratios other than Resolution without scalingDetected video signal Adjusts the display size to best suit your needsDisplays the input image as if on a 19W Monitor of 1610 aspect ratioAdjusts the horizontal position Highlight area Selects an appropriate format to play 3D contentAdjusts the vertical position of the highlight Area XL2420TXFunction Range Save Settings menuAudio menu Adjusts the audio volumeMutes the audio input Turns the tone of control keys on or offSystem menu Use this to change the input to that appropriate to yourVideo cable connection type Sets the OSD menu language Adjusts the display time of the OSD menuSets the function to be accessed by custom key Resets all mode, color and geometry settings to the factory Displays the current monitor property settingsDefault values Best withFrequently asked questions FAQ TroubleshootingTroubleshooting Need more help?