BenQ XL2420T / XL2420TX user manual Troubleshooting

Page 51

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 41 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 51

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Contents Page Disclaimer Power SafetyCare And Cleaning CopyrightBenQ ecoFACTS Table of Contents CD-ROM Getting startedVideo Cable DVI-D Dual Link Optional accessoryUSB Cable Video Cable D-SubGetting to know your monitor Front viewBack view Getting to know your monitor Attach the monitor base How to assemble your monitor hardware+20 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 Remove the monitor base How to detach the stand and the basePrepare the monitor and area Remove the monitor standHow to assemble your monitor hardware Adjusting the monitor height Rotate the monitor 90 degrees clockwise as Illustrated Rotating the monitorPivot the display Fully extend the monitor and tilt itAdjust 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 How 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 By default, the key is the hot key for Smart Scaling By default, the key is the hot key for Display ModeTo change the default settings, see Customizing For Down/Decrease adjustmentSetting up your own game mode Picture optimizationCustomizing the hot keys Adjusting display mode Downloading more game modes using Game Mode LoaderYou can resize your display by Smart Scaling Using Smart ScalingUsing Instant Mode Adjust the valueNavigating the main menu Adjusts the horizontal position of the screen image Adjusts the vertical position of the screen imageDisplay menu Phase During 3D Playback Adjusts the brightness during 3D playback During 3DAdjusts the degree of difference between darkness Lightness Picture menuAdjusts the purity degree of colors Adjusts the tone luminance. The default value is 3Viewed with natural coloring. This is Factory default color Adjusts the degree of how we perceive colorsPicture Advanced menu Resolution without scaling Applies customized display settingsMode from Picture Mode. The screen will be divided into This feature is provided to allow aspect ratios other thanDetermines the color space RGB or YUV based on Adjusts the display size to best suit your needsDetected video signal Selects an appropriate format to play 3D contentScales the highlight area Adjusts the horizontal position Highlight areaAdjusts the vertical position of the highlight Area Determines the size of the highlight areaFunction Range Save Settings menuTurns the tone of control keys on or off Adjusts the audio volumeAudio menu Mutes the audio inputSystem 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 Best with Displays the current monitor property settingsResets all mode, color and geometry settings to the factory Default valuesFrequently asked questions FAQ TroubleshootingTroubleshooting Need more help?