BenQ Xl2420tx User Manual

							  51   Navigating the main menu
InformationDisplays the current monitor property settings. • Input
• Current 
Resolution
• Optimum 
Resolution
 
(best with the 
monitor)
• 
Model Name
Reset All
Resets all mode, color and geometry settings to the factory 
default values.• YES
• NO
ItemFunctionRange
 
						

							52 Troubleshooting  
Troubleshooting
Frequently asked questions (FAQ)
The image has a faulty coloration.
• The default Picture Mode is FPS1, which is designed for FPS games. If you prefer other 
picture modes, go to 
Picture Advanced and change setting in Picture Mode.
• If the image has a yellow, blue or pink appearance, go to 
Picture and Reset Color, and then 
choose 
YES to reset the color settings to the factory defaults. 
If the image is still not correct and the OSD also has faulty coloration, this means one of the 
three primary colors is missing in the signal input. Now check the signal cable connectors. If 
any pin is bent or broken off, please contact your dealer to get necessary support.
The image is blurred.
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.
How do you use a VGA extension cable?
Remove the extension cable for the test. Is the image now in focus? If not, optimize the image 
by working through the instructions in the 
Adjusting the refresh rate section on the link 
Adjusting the Screen Resolution. It is normal for blurring to occur due to conduction 
losses in extension cables. You can minimize these losses by using an extension cable with 
better conduction quality or with a built-in booster.
Does the blurring only occur at resolutions lower than the native (maximum) resolution?
Read the instructions on the link Adjusting the Screen Resolution on the CD. Select the 
native resolution.
Pixel errors can be seen.
One of several pixels is permanently black, one or more pixels are permanently white, one or 
more pixels are permanently red, green, blue or another color.
• Clean the LCD screen.
• Cycle power on-off.
• These are pixels that are permanently on or off and is a natural defect that occurs in LCD 
technology.
 
						

							  53   Troubleshooting
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 43
 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. 
 
						

							54 Troubleshooting  
Need more help?
If your problems remain after checking this manual, please contact your place of purchase or 
e-mail us at: [email protected].
No sound can be heard from the connected external speakers.
• Remove your headphone (if the headphone is connected to the monitor).
• Check whether the headphone jack is properly connected.
• If the external speakers are USB-powered, check whether the USB connection is OK.
• Increase the volume (volume may be muted or too low) on the external speakers.