BenQ XL2420T user manual Troubleshooting

Page 56

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 46 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 seconds.

56 Troubleshooting

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Contents Page Power Safety Care And CleaningCopyright DisclaimerServicing BenQ ecoFACTSTable of Contents Getting started CD-ROMPre-installed, can be removed USB CableVideo Cable D-Sub Video Cable DVI-D Dual LinkBack view Getting to know your monitorFront view Getting to know your monitor How to assemble your monitor hardware Attach the monitor baseHow to assemble your monitor hardware How to assemble your monitor hardware Connect the PC video cable +20Connect the headphones Connect USB devicesOrganize the cables Connect-to and turn-on the power Connect the S Switch to the monitorConnect the power cable to the monitor How to assemble your monitor hardware How to detach the stand and the base Prepare the monitor and areaRemove the monitor stand Remove the monitor baseHow to assemble your monitor hardware Then detach the base from the stand XL2720 Adjusting the monitor height Rotating the monitor Pivot the displayFully extend the monitor and tilt it Rotate the monitor 90 degrees clockwise as IllustratedViewing angle adjustment Adjust the monitor to the desired viewing angleUsing the monitor wall mounting kit Remove the screws on the back coverGetting the most from your BenQ monitor How to install the monitor on a new computer Click Finish Restart the computerHow to upgrade the monitor on an existing computer How to install on Windows 8 system selected models only Select Properties from the menu Click the Hardware tabHow to install on Windows 7 system How to watch 3D content on your monitor System requirementsSafety information for watching 3D content How to adjust your monitor Control panelGamer 3 Press to switch to Gamer 3 Picture Mode Button S SwitchGamer 2 Press to switch to Gamer 2 Picture Mode Button Basic menu operation By default, the key is the hot key for Picture Mode To change the default settings, see CustomizingFor Down/Decrease adjustment By default, the key is the hot key for Display ModeInitial setup for playing games How to adjust your monitor Customizing the hot keys Setting up your own game modePicture optimization Downloading more game modes using Game Mode Loader Smart Focus see Volume see Mute seeUsing Instant Mode Adjusting display modeUsing Smart Scaling Navigating the main menu Display menu Adjusts the horizontal position of the screen imageAdjusts the vertical position of the screen image Phase Adjusts the brightness during 3D playback During 3D Adjusts the degree of difference between darkness LightnessPicture menu During 3D PlaybackViewed with natural coloring. This is Factory default color Adjusts the degree of how we perceive colorsAdjusts the purity degree of colors Resets the custom color settings to the factory defaultsAdjusts the tone luminance. The default value is 3 Standard value for WindowsPicture Advanced menu Applies customized display settings Mode from Picture Mode. The screen will be divided intoThis feature is provided to allow aspect ratios other than Resolution without scalingAdjusts the display size to best suit your needs Detected video signalDisplays the input image as if on a 19W Monitor of 1610 aspect ratioSelects an appropriate format to play 3D content Adjusts the horizontal position Highlight areaAdjusts the vertical position of the highlight Area Determines the size of the highlight areaSave Settings menu Function RangeAdjusts the audio volume Audio menuMutes the audio input Turns the tone of control keys on or offVideo cable connection type System menuUse this to change the input to that appropriate to your Adjusts the display time of the OSD menu Sets the OSD menu languageSets the function to be accessed by custom key Displays the current monitor property settings Resets all mode, color and geometry settings to the factoryDefault values Best withTroubleshooting Frequently asked questions FAQTroubleshooting Need more help?