BenQ XL2566K Full HD LED User Manual

June 14, 2024
BenQ

XL MONITOR FOR e-SPORTS
XL Series
User Manual

XL2566K Full HD LED

Copyright
Copyright © 2022 by BenQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Corporation.
Disclaimer
BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Further, BenQ Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of BenQ Corporation to notify any person of such revision or changes.
BenQ flicker-free technology maintains a stable backlight with a DC dimmer that eliminates the primary cause of monitor flicker, making it easier on the eyes. The performance of flicker-free may be affected byexternal factors such as poor cable quality, unstable power supply, signal interference, or poor grounding, and not limited to the above mentioned external factors. (Applicable for flicker-free models only.)
BenQ ecoFACTS
BenQ has been dedicated to the design and development of greener product as part of its aspiration to realize the ideal of the “Bringing Enjoyment ‘N Quality to Life” corporate vision with the ultimate goal to achieve a low- carbon society. Besides meeting international regulatory requirement and standards pertaining to environmental management, BenQ has spared no efforts in pushing our initiatives further to incorporate life cycle design in the aspects of material selection, manufacturing, packaging, transportation, using and disposal of the products. BenQ ecoFACTS label lists key eco-friendly design highlights of each product, hoping to ensure that consumers make informed green choices at purchase. Check out BenQ’s CSR Website at http://csr.BenQ.com/ for more details on BenQ’s environmental commitments and achievements.BenQ XL2566K Full HD LED

Product support

This document aims to provide the most updated and accurate information to customers, and thus all contents may be modified from time to time without prior notice. Please visit the website for the latest version of this document and other product information. Available files vary by model.

  1. Make sure your computer is connected to the Internet.
  2. Visit the local website from ZOWIE.BenQ.com. The website layout and content may vary by region/country.
  • User manual and related document: ZOWIE.BenQ.com > Support > FAQs or Download & FAQ > model name > User Manual
  • Drivers: ZOWIE.BenQ.com > Support > FAQs or Download & FAQ > model name > Driver
  • Software and applications: ZOWIE.BenQ.com > Support > FAQs or Download & FAQ > model name > Software
  • (EU only) Dismantled information: Available on the user manual download page. This document is provided based on Regulation (EU) 2019/2021 to repair or recycle your product. Always contact the local customer service for servicing within the warranty period. If you wish to repair an out-of-warranty product, you are recommended to go to a qualified service personnel and obtain repair parts from BenQ to ensure compatibility. Do not disassemble the product unless you are aware of the consequences. If you cannot find the dismantled information on your product, contact the local customer service for assistance.

For more how-to videos, tips, or product information, visit our channels (availability may vary by region).

ZOWIE on YouTube
ZOWIE on Bilibili

EPREL Registration Number:
XL2411K: 343952
XL2540K: 343954
XL2546K: 343953
XL2566K: 1176696

Safety precautions

Power safety
Please follow these safety instructions for best performance, and long life for your monitor.BenQ XL2566K Full HD LED - Safety
precautions

  • The AC plug isolates this equipment from the AC supply.
  • The power supply cord serves as a power disconnect device for pluggable equipment. The socket outlet should be installed near the equipment and be easily accessible.
  • This product should be operated from the type of power indicated on the marked label. If you are not sure of the type of power available, consult your dealer or local power company.
  • The Class I pluggable equipment Type A must be connected to protective earth.
  • An approved power cord greater or equal to H03VV-F or H05VV-F, 2G or 3G, 0.75mm2 must be used.
  • Use only the power cord provided by BenQ. Never use a power cord that appears to be damaged or frayed.
  • To avoid possible damage to the monitor, do not use it in a region where power supply is unstable.
  • Ensure that the power cord is connected to a grounded power outlet before turning on the monitor.
  • To avoid possible danger, observe the total electric load when using the monitor with a (multi-outlet) extension cord.
  • Always turn off the monitor before unplugging the power cord.

For Germany only:

  • (If the weight of the product is less than or equal to 3 kg) An approved power cord greater or equal to H03VV-F, 3G, 0.75mm2 must be used.
  • (If the weight of the product is more than 3 kg) An approved power cord greater or equal to H05VV-F or H05RR-F, 3G, 0.75mm2 must be used.
  • (If a remote control is provided) RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN

INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS.
For models with adapter:

  • Use only the power adapter supplied with your LCD Monitor. Use of another type of power adapter will result in malfunction and/or danger.
  • Allow adequate ventilation around the adapter when using it to operate the device or charge the battery. Do not cover the power adapter with paper or other objects that will reduce cooling. Do not use the power adapter while it is inside a carrying case.
  • Connect the power adapter to a proper power source.
  • Do not attempt to service the power adapter. There are no service parts inside. Replace the unit if it is damaged or exposed to excess moisture.

Installation

  • Do not use your monitor under any of the following environmental conditions:
  • Extremely high or low temperature, or in direct sunlight
  • Dusty places
  • Highly humid, exposed to rain, or close to water
  • Exposed to vibrations or impacts in places such as cars, buses, trains, and other rail vehicles
  • Near heating appliances such as radiators, heaters, fuel stoves, and other heat-generating items (including audio amplifiers)
  • An enclosed place (such as a closet or bookcase) without appropriate ventilation
  • An uneven or sloping surface
  • Exposed to chemical substances or smoke
  • Carry the monitor carefully.
  • Do not place heavy loads on the monitor to avoid possible personal injury or damage to the monitor.
  • Ensure that children do not hang or climb onto the monitor.
  • Keep all packing bags out of reach of children.

Operation

  • To protect your eyesight, please refer to the user manual to set the optimal screen resolution and the viewing distance.
  • To reduce eye fatigue, take a break on a regular basis while using the monitor.
  • Avoid taking either one of the following actions for a long time. Otherwise, burn marks may occur.
  • Play images that cannot occupy the screen entirely.
  • Place a still image on the screen.
  • To avoid possible damage to the monitor, do not touch the monitor panel by finger tip, pen, or any other sharp objects.
  • Excessively frequent plug and unplug of video connectors may cause damage to the monitor.
  • This monitor is designed mainly for personal use. If you want to use the monitor in a public place or a harsh environment, contact your nearest BenQ service center for assistance.
  • To avoid possible electric shock, do not dissemble or repair the monitor.
  • If a bad smell or an abnormal sound appears to come from the monitor, contact your nearest BenQ service center for assistance immediately.

Caution

  • The monitor should be 50 ~ 70 cm (20 ~ 28 inches) away from your eyes.
  • Looking at the screen for an extended period of time causes eye fatigue and may deteriorate your eyesight. Rest your eyes for 5 ~ 10 minutes for every 1 hour of product use.
  • Reduce your eye strain by focusing on objects far way.
  • Frequent blinking and eye exercise help keep your eyes from drying out.

Safety notice for remote control (applicable if a remote control is provided)

  • Do not put the remote control in the direct heat, humidity, and avoid fire.
  • Do not drop the remote control.
  • Do not expose the remote control to water or moisture. Failure to do so could result in malfunction.
  • Confirm there is no object between the remote control and the remote sensor of the product.
  • When the remote control will not be used for an extended period, remove the batteries.

Battery safety notice (applicable if a remote control is provided)
The use of the wrong type of batteries may cause chemical leaks or explosion. Please note the following:

  • Always ensure that the batteries are inserted with the positive and negative terminals in the correct direction as shown in the battery compartment.
  • Different types of batteries have different characteristics. Do not mix different types.
  • Do not mix old and new batteries. Mixing old and new batteries will shorten battery life or cause chemical leaks from the old batteries.
  • When batteries fail to function, replace them immediately.
  • Chemicals which leak from batteries may cause skin irritation. If any chemical matter seeps out of the batteries, wipe it up immediately using a dry cloth, and replace the batteries as soon as possible.
  • Due to varying storage conditions, the battery life for the batteries included with your product may be shortened. Replace them within 3 months or as soon as you can after initial use.
  • There may be local restrictions on the disposal or recycling of batteries. Consult your local regulations or waste disposal provider.

If the supplied remote control contains a coin / button cell battery, pay attention to the following notice as well.

  • Do not ingest battery. Chemical Burn Hazard.
  • The remote control supplied with this product contains a coin / button cell battery. If the coin / button cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death.
  • Keep new and used batteries away from children. If the battery compartment does not close securely, stop using the product and keep it away from children.
  • If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.

Care and cleaning

  • Do not place the monitor face down on the floor or a desk surface directly. Otherwise, scratches on the panel surface may occur.
  • The equipment is to be secured to the building structure before operation.
  • (For models that support wall or ceiling mounting)
  • Install your monitor and monitor mounting kit on a wall with flat surface.
  • Ensure that the wall material and the standard wall mount bracket (purchased separately) are stable enough to support the weight of the monitor.
  • Turn off the monitor and the power before disconnecting the cables from the LCD monitor.
  • Always unplug the product from the power outlet before cleaning. Clean the LCD monitor surface with an alcohol-free screen cleaner kit (purchased separately). Spray on the microfiber cloth that came with the screen cleaner kit, and wipe smudges off the screen.

BenQ XL2566K Full HD LED -System menu 2 How to clean ZOWIE monitors

|
---|---
(How-to video on YouTube)| (How-to video on Bilibili)

  • Slots and openings on the back or top of the cabinet are for ventilation. They must not be blocked or covered. Your monitor should never be placed near or over a radiator or heat sources, or in a built-in installation unless proper ventilation is provided.
  • Do not place heavy loads on the monitor to avoid possible personal injury or damage to the monitor.
  • Consider keeping the box and packaging in storage for use in the future when you may need to transport the monitor.
  • Refer to the product label for information on power rating, manufacture date, and identification markings.

Servicing

  • Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltages or other risks. If any of the above mentioned misuse or other accident such as dropping or mishandling occurs, contact qualified service personnel for servicing.
  • Contact your place of purchase or visit the local website from ZOWIE.BenQ.com for more support.

General warranty information
Note that the monitor warranty may be void if any of the following conditions occurs:

  • Documents required for warranty services have been altered by unauthorized use or is illegible.
  • The model number or production number on the product has been altered, deleted, removed or made illegible.
  • Repairs, modifications, or alterations have been made by unauthorized service organizations or persons.
  • Damage caused by improper storage of the monitor (including but not limited to force majeure, direct exposure to sunlight, water, or fire).
  • Reception problems occurred due to external signals (such as antenna, Cable TV) outside the monitor.
  • Defects caused by abuse or misuse of the monitor.
  • Before using the monitor, it is the sole responsibility of the user to check whether the monitor is compatible with local technical standards if the user brings the monitor out of its intended sales area. Failure to do so may cause product breakdown and the user will have the pay the repairing costs.
  • It is the sole responsibility of the user if problems (such as data loss and system failure) occurred due to non-factory provided software, parts, and/or non-original accessories.
  • Please use the original accessories (e.g. power cable) only with the device to avoid possible dangers such as electric shock and fire.

Typographics

Icon / Symbol Item Meaning
Warning Information mainly to prevent the damage to components, data, or

personal injury caused by misuse and improper operation or behavior.
| Tip| Useful information for completing a task.
| Note| Supplementary information.

In this document, the steps needed to reach a menu may be shown in condensed form, for example: Menu > System > Information.

Getting started

When unpacking please check you have the following items. If any are missing or damaged, please contact the place of purchase for a replacement.

LCD Monitor| BenQ XL2566K Full HD LED - LCD Monitor
---|---
Monitor Stand|
Monitor Base|
Quick Start Guide|
Safety Instructions|
Regulatory Statements|
S Switch
(Optional accessory for XL2411K /XL2540K)
To find the compatible models, visit ZOWIE.BenQ.com for information on XS250.|
Shield (Shading hood)
(Optional accessory for XL2411K /XL2540K)
To find the compatible models, visit ZOWIE.BenQ.com for information on XH250.|
Power Cord
(Supplied item may differ by model or region.)|
Video Cable: DP|
Video Cable: HDMI
(Optional accessory)|
Dust cover
(XL2540K / XL2546K / XL2566K only)|

Available accessories and the pictures shown here may differ from the actual contents and the product supplied for your region. And the package contents may subject to change without prior notice. For cables that are not supplied with your product, you can purchase them separately.

  • Consider keeping the box and packaging in storage for use in the future when you may need to transport the monitor. The fitted foam packing is ideal for protecting the monitor during transport.
  • Accessories and cables may be included or sold separately depending on the product supplied for your region.

Always keep the product and accessories out of reach of small children.

Getting to know your monitor

  1. BenQ XL2566K Full HD LED - Front view Cable management hole
    Back view
    BenQ XL2566K Full HD LED - Back viewBenQ XL2566K
Full HD LED - Back view 1

  2. AC power input jack

  3. Power button

  4. 5-way controller

  5. Rotation keys

  6. Headphone jack

  7. S Switch socket

  8. (XL2411K) HDMI-3 (1.4) socket (XL2540K / XL2546K) HDMI-3 (2.0) socket

  9. (XL2411K) HDMI-2 (1.4) socket (XL2540K / XL2546K / XL2566K) HDMI-2 (2.0) socket

  10. HDMI-1 (2.0) socket

  11. DisplayPort socket

  12. Kensington lock slot

  13. (XL2540K / XL2546K / XL2566K) Headphone hook

  • Above diagram may vary depending on the model.
  • Picture may differ from product supplied for your region.
  • HDMI 2.0 only works with compatible graphic cards and devices. Compatible issue may occur when the HDMI 2.0 input port conducts with a HDMI 1.4 output port.

Connections
The following connection illustrations are for your reference only. For cables that are not supplied with your product, you can purchase them separately.
For detailed connection methods, see page 18.

XL2411K/XL2540K/XL2546KBenQ XL2566K Full HD LED -
ConnectionsXL2566KBenQ XL2566K Full HD LED -
XL2566K

How to assemble your monitor hardware

  • If the computer is turned on you must turn it off before continuing.
    Do not plug-in or turn-on the power to the monitor until instructed to do so.

  • The following illustrations are for your reference only. Available input and output jacks may vary depending on the purchased model.

  • Avoid finger pressure on the screen surface.

1. Attach the monitor base.
Please be careful to prevent damage to the monitor. Placing the screen surface on an object like a stapler or a mouse will crack the glass or damage the LCD substrate voiding your warranty. Sliding or scraping the monitor around on your desk will scratch or damage the monitor surround and controls.

Protect the monitor and screen by clearing a flat open area on your desk and placing a soft item like the monitor packaging bag on the desk for padding.
Gently lay the screen face down on a flat clean padded surface. Orient and align the stand base socket with the end of the stand arm. Make sure to align the arrow on the end of the stand to the one on the monitor base. Turn the base counterclockwise until you cannot go further.
As illustrated, when the stand and the base are locked, the arrow on the end of the stand is aligned to the lock symbol on the monitor stand. Raise the thumbscrew lids and tighten the thumbscrews as illustrated. Then push the lids back. Orient and align the stand arm with the monitor, then push them together until they click and lock into place. Carefully lift the monitor, turn it over and place it upright on its stand on a flat even surface. To move the monitor, you must hold the handle and the bottom of the stand base at the same time as illustrated. You can protect the monitor using the supplied dust cover. You might want to adjust the monitor stand height. See Adjusting the monitor height on page 22 for more information.
You should position the monitor and angle the screen to minimize unwanted reflections from other light sources.
2. Connect the video cable.
The video cables included in your package and the socket illustrations in this document may vary depending on the product supplied for your region.BenQ
XL2566K Full HD LED - monitor hardware 9

  • Connect the plug of the HDMI cable to the HDMI port on the monitor. Connect the other end of the cable to the HDMI port of a digital output device.
  • Connect the plug of the DP cable to the monitor video socket. Connect the other end of the cable to the computer video socket.

3. Connect the S Switch to the monitor.
Connect the S Switch to the S Switch socket found on the back of the monitor. 4. Connect the headset.
Connect the headphone connector of your headset to the headset jack found on the rear of the monitor.
You may connect headphones to the headphone jack found on the back side of the monitor. 5. Using the headphone hook. (XL2540K / XL2546K / XL2566K only)
Pull out the headphone hook found on the back of the monitor. Leave your headset on the headphone hook if  needed. Excessive force on the hook is prohibited. The maximum load capacity of the headphone hook is 400g.
6. Connect the power cable to the monitor.
Plug one end of the power cord into the socket labelled **on the rear of the monitor. Do not connect the other end to a power outlet just yet.
7. Organize the cables.
Allow enough cable length while cabling to avoid loose connection and to save the pins or socket connectors from being bent or broken.
8. Connect-to and turn-on the power.
Plug the other end of the power cord into a power outlet and turn it on.
Picture may differ from product supplied for your region.
Turn on the monitor by pressing the power button on the monitor.
Turn on the computer too. If you have multiple video sources, press the Rotation key 2 and the 5-way controller to select an input source.
Follow the instructions in Upgrading the monitor driver on page 29 to install the monitor driver. If you are prompted by any OSD (On Screen Display) message, follow the on-screen instructions to proceed.
To extend the service life of the product, we recommend that you use your computer’s power management function.
9. Read the mode/setting change notice. (Available by region.)
The default settings (ECO mode and enabled ECO Setting) with dimmed colors are mandatory settings to keep low power consumption and meet the international energy standards, which limit the display performance as a result.
To utilize your monitor, select CONFIRM to change modes/settings. Note that any change to the default display settings may consume more power.
10.Change the display language.**
If you want to change the display language, go to System > OSD Settings > Language . See Language on page 55 for details.

How to detach the stand and the base
1. Prepare the monitor and area.
Turn off the monitor and the power before unplugging the power cable. Turn off the computer before unplugging the monitor signal cable.
Protect the monitor and screen by clearing a flat open area on your desk and placing a soft item like a towel on the desk for padding, before laying the screen face down on a flat clean padded surface.
Please be careful to prevent damage to the monitor. Placing the screen surface on an object like a stapler or a mouse will crack the glass or damage the LCD substrate voiding your warranty. Sliding or scraping the monitor around on your desk will scratch or damage the monitor surround and controls.
2. Remove the monitor stand.
While pressing and holding the VESA mount release button (1 ), detach the stand from the monitor ( 2 and 3 ). 3. Remove the monitor base.
Raise the thumbscrew lids and release the thumbscrews as illustrated.
In case you intend to use your monitor on the stand in the future, please keep the monitor base and monitor stand somewhere safe for future use.
Turn the base clockwise until you cannot go further.
As illustrated, when the stand and the base are unlocked, the arrow on the end of the stand is aligned to the arrow on the monitor base.
And then detach the base from the stand. Adjusting the monitor height
1. To adjust the monitor height, hold both the left and the right sides of the monitor to lower the monitor or lift it up to the desired height.
2. On the monitor stand is an adjustment scale that helps keep track of your preferred monitor height. Move the marker on the scale to the monitor stand height just set.
Avoid placing hands on the upper or lower part of the height-adjustable stand or at the bottom of the monitor, as ascending or descending monitor might cause personal injuries. Never place your hand on the stand either when tilting the monitor upward or downward. Keep children out of reach of the monitor while performing this operation. Viewing angle adjustment
You may position the screen to the desired angle with the monitor tilt, swivel, and height adjustment functions. Check the product specifications on the website for details.
Tilting the monitor
Tilt the monitor gently. The scale on top of the column helps keep track of your preferred tilt angle. Swiveling the monitor

  1. Turn the monitor to the left or right as desired.
  2. Turn the adjustment scale on the monitor base. The interval of measurement is 5 degrees, and you can make adjustment within the possible swivel angle. The scale on the monitor base helps to keep track of your preferred swivel angle.

BenQ XL2566K Full HD LED -Tilting the monitor 1 Rotating the monitor

  1. Pivot the display.
    Before rotating the monitor with a portrait viewing orientation, the display has to be rotated 90 degrees.
    Right-click the desktop and select Screen resolution from the popup menu. Select Portrait in Orientation, and apply the setting.
    Depending on the operating system on your PC, different procedures should be followed to adjust the screen orientation. Refer to the help document of your operating system for details.

  2. Fully extend the monitor and tilt it.
    Gently lift the display up and extend it to the maximum extended position. Then tilt the monitor.
    The monitor should be vertically extended to allow to rotate from landscape to portrait mode.

  3. Rotate the monitor 90 degrees clockwise as illustrated.
    BenQ XL2566K Full HD LED -Rotating the monitor 1To avoid the edge of the LCD display hitting the monitor base surface while it is being rotated, do tilt and extend the monitor to the highest position before you start to rotate the display. You should also make sure there are no obstacles around the monitor
    and there is enough room for cables.

  4. Adjust the monitor to the desired viewing angle. See Viewing angle adjustment on page 23 for more information.
    If the monitor has been rotated to portrait mode and height adjustment is desired, you should be noted that the wide screen will keep the monitor from being lowered to its minimum height.

Installing the Shield (shading hood, optional)
To help focusing in games, the Shield (shading hood) avoids the unwanted disturbance interfered with the peripheral vision while playing.
For models that came with shading hoods, two shading hoods are inside the accessory box. Please be careful to prevent damage to the Shield and the monitor. The shading hoods are well-designed and can fit into your monitor properly. Do not use excessive force when installing Shield to avoid possible damage.
For models that did not come with shading hoods, you can purchase them separately. Visit ZOWIE.BenQ.com for the availability of XH250.

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(How-to video on YouTube)
http://www.youtube.com/watch?v=ONfe-j55bUU| (How-to video on Bilibili)
http://bili2233.cn/tn2ezJT

  1. Prepare for the shield installation.
    Place the monitor upright on its stand on a flat even surface. Make sure the monitor is rotated to the landscape mode.

  2. Remove the stickers and the rubbers on both sides of the monitor.
    There are 2 holes protected by rubbers and stickers on each of the right and the left side of the monitor. Remove the stickers and the rubbers before shading hood installation.
    BenQ XL2566K Full HD LED - installation 1 Keep the rubbers and insert them back to the holes if Shield has been removed.

  3. Attach the Shield to the monitor.
    Two shading hoods are not identical. The logo should be facing outward on the upper section.BenQ XL2566K Full HD LED - installation
2Attaching the hoods by aligning the hooks to the holes on both sides of the monitor. Once the hooks are aligned properly, hold the bottom of the monitor as illustrated to keep it stable, and slide down the hood and the hooks will be locked into place.

  4. Adjust the hoods to the desired angle.

Uninstalling the Shield

Please remove the hoods before moving the monitor to different places.

  1. Detach the Shield.
    Hold the top of the monitor as illustrated to keep it stable. Lift the hoods upward and detach them carefully.BenQ XL2566K Full HD LED - installation
3

  2. Insert the rubbers back into the holes.

Using the monitor wall mounting kit (purchased separately)
The back of your LCD monitor has a VESA standard mount with 100mm pattern, allowing the installation of a wall mount bracket. Before starting to install a monitor wall mounting kit, please read the precautions carefully.
Precautions

  • Install your monitor and monitor mounting kit on a wall with flat surface.
  • Ensure that the wall material and the standard wall mount bracket (purchased separately) are stable enough to support the weight of the monitor. Refer to the product specifications on the website for weight information.
  • Turn off the monitor and the power before disconnecting the cables from the LCD monitor.

1. Remove the monitor stand.
Lay the screen face down on a clean and well-padded surface. Detach the monitor stand as instructed in step 1~2 in How to detach the stand and the base on page 21. 2. Remove the screws on the back cover.
Use a cross-pointed screwdriver to release the screws on the back cover. The use of a magnetic-head screwdriver is recommended to avoid of losing the screws.
In case you intend to use your monitor on the stand in the future, please keep the monitor base, monitor stand, and screws somewhere safe for future use.
3. Follow the instruction manuals of the wall mount bracket you purchased to complete the installation.
Use four M4 x 10 mm screws to fix a VESA standard wall mount bracket to the monitor. Make sure that all screws are tightened and secured properly. Consult a professional technician or BenQ service for wall mount installation and safety precautions.

Upgrading the monitor driver

Usually a monitor works well with a computer without installing a driver. If you have the following problems, consider upgrading the monitor driver.

  • Fail to select the native resolution of your monitor on Windows Operating System and have a blurry display.
  • The display is distorted.
  • Fail to select the highest screen refresh rate of your monitor. The highest refresh rate varies by model.

Refer to the product specifications on the website for the refresh rate information of the purchased model.
This instruction details the procedure for manually updating the existing monitor driver on your Microsoft Windows computer. It is currently tested as compatible for Windows 11 and Windows 10 Operating System (OS).
If the problem remains after upgrading the monitor driver, contact the local customer service for assistance.
The LCD Monitor driver for your model may well function perfectly with other versions of Windows, however, as at the time of writing, BenQ has done no testing of this driver on other versions of Windows and cannot guarantee its operation on those systems.
Installing monitor driver involves selecting an appropriate information file (.inf) from the downloaded driver files for the particular model monitor you have connected, and letting Windows install the corresponding driver files. You need only steer it in the right direction.
See:

  • How to install on Windows 11 system on page 30
  • How to install on Windows 10 system on page 30

To gain the most benefit from your new LCD monitor, you should install the custom LCD Monitor driver as provided on the local website. See Downloading the LCD Monitor driver files from the Internet on page 29 for details.
To check the name of the purchased model, refer to the specification label on the back of the monitor.
Downloading the LCD Monitor driver files from the Internet

  1. Download the correct driver files from ZOWIE.BenQ.com > Support > FAQs or Download & FAQ > model name> Driver.
  2. On your computer, have your driver files extracted into an empty folder. Remember the file location the files are extracted to.

How to install on Windows 11 system

  1. Access the driver files downloaded from the Internet as instructed in Downloading the LCD Monitor driver files from the Internet on page 29.
  2. Select and right-click the *.inf file, and select Show more options > Install from the menu.
  3. If the user account control window appears, click Ye s to allow the app to make changes to your device. The driver will be installed.
  4. To check whether a new driver is installed, right-click the desktop and select Display settings > Advanced display. Check your monitor under Display information. Click Display adapter properties, and then click the Monitor tab and the Properties button to check whether the Driver Provider has been updated to BenQ.

How to install on Windows 10 system

  1. Access the driver files downloaded from the Internet as instructed in Downloading the LCD Monitor driver files from the Internet on page 29.
  2. Select and right-click the *.inf file, and select Install from the menu.
  3. After the driver file is installed, click OK.

How to adjust your monitor

The control panelBenQ XL2566K Full HD LED - The control
panel

No Name Description
1 Power key Turns the power on or off.
2 5-way controller Accesses the functions or menu items as instructed by the

on-screen icons. See 5-way controller and basic menu operations on page 33 for more information.
3| Rotation keys| Accesses the functions or menu items displayed on the screen. See Working with the Rotation Keys on page 34 for more information.

The S Switch
Apart from the control keys, S Switch also provides a quick way to control and access the OSD (On Screen Display) menus.
You need to connect the S Switch to your monitor prior to use. Follow the instructions in Connect the S Switch to the monitor. on page 18.

No Name Function
1 Return button • Returns to the previous menu.

• Exits OSD (On Screen Display) menu.
• Press and hold for 3 seconds close the current menu.
2|  Wheel| • Scroll up: works the same with .
• Scroll down: works the same with .
• Tilt right: works the same with .
• Tilt left: works the same with .
• Selects menu item by pressing once.
3| Gamer 1 button| • Press to switch to Gamer1 (Mode).
• Press and hold for 3 seconds to save the customized display settings for Gamer1 on S Switch.
For advanced functions, see Copying game modes from an S Switch to your monitor on page 38 for more information.
4| Gamer 2 button| • Press to switch to Gamer2 (Mode).
• Press and hold for 3 seconds to save the customized display settings for Gamer2 on S Switch.
For advanced functions, see Copying game modes from an S Switch to your monitor on page 38 for more information.
5| Gamer 3 button| • Press to switch to Gamer3 (Mode).
• Press and hold for 3 seconds to save the customized display settings for Gamer3 on S Switch.
For advanced functions, see Copying game modes from an S Switch to your monitor on page 38 for more information.
6| S Switch key| By default, the key is the hot key for Input. To change the default settings, go to Custom > S Switch Key. See S Switch Key on page 53 for more information.

S Switch is designed for specific models exclusively. Do not connect it to other devices with USB ports. To find the compatible models, visit ZOWIE.BenQ.com for information on XS250.

5-way controller and basic menu operations
The 5-way controller is located at the rear of the monitor. While sitting in front of the monitor, move the controller to the directions instructed by the on-screen icons for menu navigation and operations.

OSD (On Screen Display) icon| 5-way controller operation| Function
---|---|---
(With an available video input but no menu has been activated)
N/A| Press| Activates the Quick Menu.
(When the Quick Menu has been activated)
| Move to the left / right| Goes to the previous / next menu setting.
Move up / down| •Goes to the previous / next menu item.
•For increase / decrease adjustment.
Press center| Confirms the selection.
(When the main menu has been activated)
| Press center| Confirms the selection.
| Move to the right| •Enters sub menus.
•Confirms the selection.
| Move up| •Goes to the previous menu item.
•For up / increase adjustment.
| Move down| •Goes to the next menu item.
•For down / decrease adjustment.
| Move to the left| •Returns to the previous menu.
•Exits OSD (On Screen Display) menu.

All OSD (On Screen Display) menus can be accessed by the control keys. You can use the OSD menu to adjust all the settings on your monitor. Available menu options may vary depending on the input sources, functions and settings.BenQ
XL2566K Full HD LED - functions and settings.

  1. Press the 5-way controller.
  2. The Quick Menu is displayed.
  3. Select Menu to access the main menu.
  4. On the main menu, follow the on-screen icons on the bottom of the menu to make adjustments or selection. See Navigating the main menu on page 41 for details on the menu options.

Working with the Rotation Keys

The Rotation Keys (located next to the 5-way controller) perform as hot keys to provide direct access to pre-defined functions. You can change the default setting and designate different functions for these keys.

Accessing the Rotation Key functions

1. Press the key with the desired function on the rear of the monitor.
2. Press the same key repeatedly to cycle through available options on the list.

Item Description
Rotation Key 2 Switches to a list of Mode options by default.

To change the default settings, see Customizing the Rotation Keys on page 35.
Rotation Key 1| Switches to a list of Input options by default.
To change the default settings, see Customizing the Rotation Keys on page 35.

Customizing the Rotation Keys

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Custom > Rotation Key 1 or Rotation Key 2.
  3. On the sub menu, select a category.
  4. Under the category, check to select up to 3 items for quick access by this key. If 3 items have been selected and a change is preferred, deselect one so all items are available for selection again.

BenQ XL2566K Full HD LED - functions and settings.1

Working with the Quick Menu
The Quick Menu is a quick access to some monitor settings frequently adjusted. It also provides the access to the main menu.

  • Press the 5-way controller to bring up the Quick Menu
  • Press / to different settings.
  • Press / to cycle through menu options / make adjustments.
  • Go to Menu and press to access the main menu.

BenQ XL2566K Full HD LED - functions and settings6

No Item Description
1 System information Displays current system information, including

resolution (selected models only), refresh rate, and picture mode.
2| Main menu| Accesses the main menu. See Navigating the main menu on page 41 for more information.
3| On-screen instructions| Operation tips.
4| Quick settings| To customize the setting menus that can be accessed from the Quick Menu, see Customizing the Quick Menu on page 36.

Customizing the Quick Menu
By default, there are 4 settings that could be customized and quickly adjusted from the Quick Menu.
Change the settings if desired.

  1. Press the 5-way controller bring up the Quick Menu.
  2. Go to Menu > Custom > Quick Menu.
  3. The first item is grayed out and cannot be changed. Select one available item and press for further selection.
  4. Scroll to one item and press / for confirmation. If you prefer to keep a short Quick Menu, select None for a setting so it will not be displayed on the Quick Menu. Do not choose the same item for 2 settings or choose None for more than 2 settings. A setting menu is grayed out on the Quick Menu if it is not supported by a picture mode.
  5. After the setting is done, press to return to Quick Menu to save properly.BenQ XL2566K Full HD LED - Quick Menu to save properly

Adjusting display mode
To display images of aspect ratio other than 16:9 and size other than the panel size of your purchased model, you can adjust the display mode on the monitor. See Display Mode on page 49 for all the available options.

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Display > Display Mode.
  3. Select an appropriate display mode. The setting will take effect immediately.

Choosing an appropriate picture mode
Your monitor provides various picture modes that are suitable for different types of images. Display settings can be saved by picture mode. See Mode menu on page 42 for all the available options.

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Mode.
  3. Select an appropriate picture mode. The setting will take effect immediately.

Setting up your own game mode
There are several preset picture modes on your monitor that are suitable for games. To better suit your needs, you can change and save the related display settings, and switch to your own game mode easily.
Do not plug or unplug S Switch while configuring game mode settings.

  1. Press the 5-way controller to bring up the Quick Menu.
  2.  Make sure the Auto Save function is enabled from Menu > Save > Auto Save.
  3. Adjust the related available settings in different OSD menus.
  4. The customized settings are applied and saved automatically to the current mode.
  5. Alternatively, go to Menu > Save > Save to and save your preferences to a game mode (Gamer1 / Gamer2 / Gamer3) to the monitor. If you want to switch to your game mode at any time, go toMode and select the game mode with the new settings to apply.

If Auto Save is disabled, you need to go to Save > Save Settings to save the settings manually to the current mode after display adjustment.

Working with game mode to go by S Switch
Once the adjusted display settings have been saved to S Switch, you can take the settings with you to other LCD monitors with the same model name. It is driver-free and helps apply new game modes quickly.
Saving your game modes to S Switch
By default, the settings for game mode buttons (labeled 1~3) on S Switch are identical to the game modes (Gamer1 / Gamer2 / Gamer3) in Mode on your monitor. You can change the setting as desired.

  1. Adjust to the personal preference in monitor menu.
  2. Press and hold one of the game mode buttons (labeled 1~3) on S Switch for 3 seconds to save the customized settings. The game mode is now saved on S Switch and is ready to go.

This is the only way to save the monitor settings to the Gamer 1/2/3/ buttons on S Switch. Changes to the game mode settings from the monitor OSD (On Screen Display) menu are not synced with the game mode settings on S Switch without this operation.
Copying game modes from an S Switch to your monitor
Apart from the default and the adjusted settings done on your monitor, you can quickly import settings from other monitors with the same model name via S Switch.

  1. Make sure the Auto Save function is enabled from Menu > Save > Auto Save.
  2. Plug in an S Switch with new game modes from another monitor with the same model name to your monitor. Press one of the game mode buttons (labeled 1~3) on S Switch to apply and save the settings to your monitor.

For example, if the Gamer 2 button is pressed, the Gamer 2 setting will be applied and overwrite Gamer2 on the monitor.

  • A system reset or mode reset will restore the monitor and the connected S Switch settings to the factory default values.
  • Unplug the S Switch first if you wish to keep the game mode settings on it. To reset, see Reset Mode on page 56 or Reset All on page 56 for more information.
  • If you wish to apply the Gamer 1/2/3 settings from S Switch temporarily without importing the profiles to your monitor, disable the Auto Save function from Menu > Save > Auto Save before pressing the Gamer 1/2/3 button on S Switch.
  • If the Auto Save function is disabled from Menu > Save > Auto Save in the first place and you wish to import the profiles from S Switch to your monitor after pressing a game mode button, go to Menu > Save > Save Settings. Select YES to save the settings manually.

Alternatively, download Setting to Share from ZOWIE.BenQ.com to share game mode settings with compatible monitors easily. See Product support on page 3 for the access to the software and its user guide.

Enabling color vision accessibility (Color Weakness) (selected models only)
Color Weakness is accessibility that helps people with color vision deficiency to distinguish colors. You are provided with Red Filter and Green Filter on this monitor. Choose one as needed.

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Color > Color Weakness.
  3. Choose either Red Filter or Green Filter.
  4. Adjust the value of the filter. A stronger effect is produced as the value increases.

Adjusting Dynamic Accuracy (selected models only)
Dynamic Accuracy feature provides motion stability in games

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Picture > DyAc / DyAc+.

Activating VESA standard DisplayPort Adaptive-Sync (XL2540K / XL2546K / XL2566K)
Monitors featuring with the VESA standard Adaptive-Sync will eliminate screen tearing, stuttering, and juddering during gaming.

  1. Use a compatible graphics processing units (GPU) with the forthcoming driver. Confirm supported technologies please visit the website of your GPU manufacturer.
  2. Ensure to connect with DisplayPort or HDMI 2.0 socket . See Connect the video cable. on page 18 for more information. (*)
  3. Go to System > FreeSync Premium/Adaptive-Sync to turn on the function. Pay attention to the on-screen messages before the function switch.

• For any questions related to Adaptive-Sync performance please refer to the website of your GPU manufacturer.
• (*) : HDMI 2.0 ports only support FreeSync Premium/Adaptive-Sync for AMD graphics cards.

Using Scaling
You can resize your display by Scaling.

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Go to Menu > Display > Scaling.

Your display may become unstable temporarily when being resized. This is a normal phenomenon and should not be considered as manufacturing defect.
Initial setup for playing games at 144 / 240 / 360 Hz
You can optimize the monitor to enhance your gaming experience. You might want to start with the following steps.
Below is a list of maximum refresh rate and its supported models.

  • 144 Hz: XL2411K
  • 240 Hz: XL2540K / XL2546K
  • 360 Hz: XL2566K

Available timings vary by model and input source. Download Resolution file from the website (see Product support on page 3). Refer to “Preset display modes” in Resolution file for more information.
Depending on the operating system on your PC, different procedures should be followed to adjust the screen refresh rate. Refer to the Help document of your operating system for details.

  1. Set the screen refresh rate to 144 Hertz (144 Hz) / 240 Hertz (240 Hz) / 360 Hertz (360 Hz).
    Right-click the desktop and select Screen resolution. Click Advanced settings. Under the Monitor tab, change the screen refresh rate to 144 Hertz / 240 Hertz / 360 Hertz. And then click Apply and Ye s to confirm the change.BenQ
XL2566K Full HD LED - Using ScalingBenQ
XL2566K Full HD LED - Using the headphone hook 10

  2. Go to the setup menu in your game, and change the frame rate or screen refresh rate to 144 Hz /240 Hz / 360 Hz. Refer to the Help document that came with your game for details.

  3. To check if the screen refresh rate has been changed, go to the Quick Menu on your monitor and check the system information.

If 144 Hz / 240 Hz / 360 Hz is not available on your menus, check the following:

  • make sure the HDMI 2.0 cable or DisplayPort cable is properly connected to your computer and the monitor
  • make sure your GPU supports 144 Hz / 240 Hz / 360 Hz.
  • make sure your game supports 144 Hz / 240 Hz / 360 Hz.

You can use the OSD (On Screen Display) menu to adjust all the settings on your monitor.
Press the 5-way controller to bring up the Quick Menu and select Menu to access the main menu. See 5-way controller and basic menu operations on page 33 for details.
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.
The OSD (On Screen Display) menu languages may differ from the product supplied to your region, see Language on page 55 under System and OSD Settings for more details.
For more information on each menu, please refer to the following pages:

  • Mode menu on page 42
  • Color menu on page 44
  • Picture menu on page 46
  • Save menu on page 48
  • Display menu on page 49
  • Custom menu on page 51
  • System menu on page 54

Mode menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.BenQ XL2566K Full HD
LED - Mode menu

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or to select Mode.
  4. Select to go to a sub menu, and then use   or to select a menu item.
  5. Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select ****.
  7. To exit the menu, select .
Item Function Range
Mode Select a picture mode that best suits the type of images shown on the

screen.
The default picture mode is FPS I (for FPS games) or ECO, depending on the product supplied for your region. Change the setting if needed.|
FPS I| For playing FPS (First Person Shooting) games.|
FPS2|
FPS3|
Gamer I| Applied customized display settings.
For details on setting up a game mode, see Setting up your own game mode on page 37.|
Gamer2|
Gamer3|
Movie| For viewing videos.|
Standard| For basic PC application.|
| ECO (selected
models only)| For saving electricity with low power consumption by providing minimum brightness for all running programs.|

Color menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu. BenQ XL2566K Full HD
LED - Color menu

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select Color.
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Range
Black eQualizer Brings out the dark shades by increasing the brightness

without changing those of the light shades.
If the image is too bright or barely contains any dark shades, adjusting the value of Black eQualizer may not show much change to the image.| 0 ~ 20
Color Vibrance| Provides different sets of color settings. Once applied, you can
adjust some of the color settings in the corresponding menus.| 0 ~ 20
Low Blue Light| Decreases the blue light emitted from the display to reduce the risk of blue light exposure to your eyes.
The amount of blue light reduced in each low blue light mode varies and has been set particularly for the specified scenario. Choose one mode to suit your needs.| 0 ~ 10
Gamma| Adjusts the tone luminance.| • 1
• 2
• 3
• 4
• 5
Color Temperature| Normal| Allows video and still photographs to be viewed with natural coloring. This is the factory default color.|
Bluish| Applies a cool tint to the image and is factory pre-set to the PC industry standard white color.|
Reddish| Applies a warm tint to the image and is factory
pre-set to the news print standard white color.|
User Define| The blend of the Red, Green and Blue primary colors can be altered to change the color tint of the image. Go to the succeeding R (red), G (green), and B (blue) menus to change the settings.
Decreasing one or more of the colors will reduce their respective influence on the color tint of the image. (e.g. if you reduce the Blue level the image will gradually take on a yellowish tint. If you
reduce Green, the image will become a magenta tint.)| •R (0 – 100)
•G (0 – 100)
•B (0 – 100)
Color Weakness
(selected models only)| Adjusts color matching representation for people with color vision deficiency to distinguish colors easily.|
Red Filter| Decides the effect produced by the red filter. A stronger effect is produced as the value increases.| 0 ~ 20
Green Filter| Decides the effect produced by the green filter A
stronger effect is produced as the value increases.| 0 ~ 20
OFF| Disables Color Weakness function.|

Picture menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.BenQ XL2566K Full HD
LED - Picture menu

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select Picture..
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Range

DyAc / DyAc+
(selected models only)| Dynamic Accuracy feature provides motion stability in games. This feature is recommended only when the refresh rate is 100 Hz or higher
Once changed and saved, the setting takes effect immediately and applies to all modes.
(XL241 I K only) Due to the design limitations of the panel, the brightness will be reduced when DyAc is switched on.| • Premium
• High
• OFF
Brightness| Adjusts the balance between light and dark shades.| 0 ~ 100
Contrast| Adjusts the degree of difference between darkness and lightness.| 0 ~ 100
Sharpness| Adjusts the clarity and visibility of the edges of the subjects in the image.| 0 ~ 10
AMA| Improves the gray level response time of the LCD panel.
Once changed and saved, the setting takes effect immediately and applies to all modes.| • Premium
• High
• Customize (XL2566K only)
• OFF

Save menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.BenQ XL2566K Full HD
LED - Picture menu

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select Save.
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Range
Auto Save Saves the adjusted display settings to the current mode

automatically.
If Auto Save is disabled, you need to go to Save > Save Settings to manually save the settings to the current mode after display adjustment.| • ON
• OFF
Save Settings| Saves the adjusted display settings to the current mode manually.
Available only when Auto Save is disabled.| • YES
• NO
Save to| Saves a new set of customized display settings.
See Setting up your own game mode on page 37 for information on applying the game mode.| • Gamer1
• Gamer2
• Gamer3

Display menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.BenQ XL2566K Full HD
LED - Save menu 2

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select Display.
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Range
Input Use this to change the input to that appropriate to your video cable
connection type. • DisplayPort

• HDMI1
• HDMI2
• HDMI3
(selected models only)
Display Mode| This feature is provided to allow aspect ratios other than 16:9 to be displayed without geometric distortion.
The options under Display Mode will be different depending on the input signal sources.
Depending on your selection of Mode, different Display Mode option is pre-set. Change the setting if needed.
Full
Scales the input image to fill the screen. Ideal for 16:9 aspect images.|
| Aspect| The input image is displayed without geometric distortion filling as much of the display as possible.|
1:01| Displays the input image in its native resolution without scaling.|
17″ (4:3)| Displays the input image as if on a IT” monitor of 4:3 aspect ratio.|
19″ (4:3)| Displays the input image as if on a 19′ monitor of 4:3 aspect ratio.|
19″ (5:4)| Displays the input image as if on a 19′ monitor of 5:4 aspect ratio.|
19’W
(16:10)| Displays the input image as if on a 19″W monitor of 16:10 aspect ratio.|
21.5″ (16:9)| Displays the input image as if on a 21.5′ monitor of 16:9 aspect ratio.|
22’W
(16:10)| Displays the input image as if on a 22″W monitor of 16:10 aspect ratio.|
23’W
(16:9)| Displays the input image as if on a 23″W monitor of 16:9 aspect ratio.|
23.6″W (16:9) (selected models only)| Displays the input image as if on a 23.6″W monitor of 16:9 aspect ratio.|
24″W (16:9) (selected models only)| Displays the input image as if on a 24″W monitor of 16:9 aspect ratio.|
Scaling| Adjusts the di play size to best suit your needs.
Not available when the Display Mode is set to Full or Aspect For other modes (except 1:1 1. each mode with its last sating setting can be saved as quick access.
If the Display Mode is 1:1 (and the resolution of the input source is lower than 1920 x 1080). the last 3 scaling settings (in different resolutions of the input source) will be saved for quick access.| 0 — 100
RGB Range| Determines the range of color scales. Select an option that matches the RGB range setting on the connected device.| •Auto Detect
•RGB (0-255)
•RGB (16-255)
Overscan| Slightly enlarges the input image. Use this feature to hide annoying edge noise if present around your image.| •ON
•OFF

Custom menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu. BenQ XL2566K Full HD
LED - Custom menu

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select Custom.
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Range
Quick Menu Sets 2 to 4 settings that could be frequently adjusted from the

Quick Menu. Do not choose the same item for 2 settings or choose None for more than 2 settings. See Customizing the Quick Menu on page 36 for more information.| • None
• Mode (see page 42)
• DyAc / DyAc+ (see page 46) (selected models only)
• Black eQualizer (see page 44)
• Color Vibrance (see page 44)
• Brightness (see page 46)
• FreeSync Premium / Adaptive-Sync (see page 54) (selected models only)
• Contrast (see page 46)
• Input (see page 49)
• Low Blue Light (see page 44)
• Gamma (see page 45)
• Sharpness (see page 46)
• AMA (see page 47)
Rotation Key 1
Rotation Key 2| Sets the function to be accessed by the Rotation key 1 / Rotation
key 2 on the back of the monitor. See The control panel on page 31
for the location of the key. Select a category first, and choose up to
3 options to be accessed by this key.| • Mode (see page 42)
• DyAc / DyAc+ (see page 46) (selected models only)
• AMA (see page 47)
• Input (see page 49)
S Switch Key| Sets the function to be accessed by the S Switch Key on S Switch.
See The S Switch on page 31 for the location of the key. Select a
category first, and choose up to 3 options to be accessed by this key.| • Mode (see page 42)
• DyAc / DyAc+ (see page 46) (selected models only)
• AMA (see page 47)
• Input (see page 49)

System menu
Available menu options may vary depending on the input sources, functions and settings. Menu options that are not available will become grayed out. And keys that are not available will be disabled and the corresponding OSD (On Screen Display) icons will disappear. For models without certain functions, their settings and related items will not appear on the menu.
BenQ XL2566K Full HD LED -System menu 1

  1. Press the 5-way controller to bring up the Quick Menu.
  2. Select Menu from the Quick Menu.
  3. Use or o select System.
  4. Select to go to a sub menu, and then use or to select a menu item.
  5.  Use or to make adjustments, or use to make selection.
  6. To return to the previous menu, select .
  7. To exit the menu, select .
Item Function Rang e

ECO Setting
(selected
models only)|  Provides different ranges of screen brightness. When enabled, the maximum brightness is limited to consume less power. To utilize your monitor, disable the function to experience the optimal color settings of your monitor.| • ON
• OFF
FreeSync Premium /
Adaptive-Sy nc
(selected models only)| Turns the FreeSync™ Premium/Adaptive-Sync function on or off.
Pay attention to the on-screen messages before the function switch.
Once changed and saved, the setting takes effect immediately and applies to all modes.| • ON
• OFF
Headphone| Volume| Adjusts the audio volume.
Due to graphic limitation on some of the graphic cards, the headphone jack on the monitor may not output audio signal. To output audio signal in this case, please use the headphone jack on the PC.| 0 ~ 100
Mute| Mutes the volume| •
ON
• OFF
OSD
Settings| Language| Sets the OSD (On Screen Display) menu language.
The language options displayed on your OSD (On Screen Display) may differ from those shown on the right, depending on the product supplied in your region.| • English
Display
Time| Adjusts the display time of the OSD (On Screen Display) menu.|
Information| Displays the product information.| • Model Name
• Input
• Optimum Resolution
(best with the monitor)
• FreeSync Premium
(selected models only)
Other
Setting| Resolution
Notice (selected
models only)| Sets whether to display the resolution notice of the ecommended resolution when a new input source is detected by the monitor| • ON
• OFF
Buzzer| Turns the tone of control keys on or off.| • ON
• OFF
Input Auto Switch| Sets to automatically detect the available input source.| • ON
• OFF
Auto Power Off| Sets the time to power off the monitor automatically in power saving mode.| • OFF
• 10 min
• 20 min
• 30 min
Deep Sleep(selected
models only)| Sets to enable/disable deep sleep (power-saving) mode by powering off the monitor.
If enabled, the monitor enters deep sleep mode by pressing the power button and consumes less power.
If disabled, the monitor turns the backlight off without entering deep sleep mode by pressing the power button.| • ON
• OFF
LED
Indicator| Determines the brightness of the LED indicator.| • ON
• OFF
DDC/CI| Allows the monitor settings to be set through the software on the PC.
DDC/CI, short for Display Data Channel/Command Interface, which was developed by Video Electronics Standards Association (VESA). DDC/CI capability allows monitor controls to be sent via the software for remote diagnostics.| • ON
• OFF
Reset Mode| Resets the current or all picture modes.|
Current
Mode| Resets the current picture mode.
If the current mode is Gamer1 / Gamer2 / Gamer3 and an S Switch is connected to the monitor, the same mode on both the monitor and S Switch will be reset.|
All Modes| Resets all picture modes.
If an S Switch is connected to your monitor while performing this operation, the game mode settings saved on S Switch will be reset as well.|
Reset All| Resets all mode, color and geometry settings to the factory default values.
If an S Switch is connected to your monitor while performing this operation, the game mode settings saved on S Switch will be reset as well. Unplug the S Switch first if you wish to keep the game mode settings on it.| • YES
• NO

Troubleshooting

Frequently asked questions (FAQ)
If your problems remain after checking this manual, please contact your place of purchase or visit the local website from ZOWIE.BenQ.com for more support and local customer service.ZOWIE.BenQ.com > Support > FAQs or Download & FAQ > model name

Imaging
The image has a faulty coloration.
It has a yellow, blue or pink appearance.
• The default picture mode is FPS1 (for FPS games) or ECO, depending on the product supplied for your region. If you prefer other picture modes, go to Mode and change setting.
• If the image has a yellow, blue or pink appearance, go to System and Reset Mode to reset the color settings to the factory defaults.
If the image is still not correct and the OSD (On Screen Display) 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.
Download Resolution file from the website (see Product support on page 3). Refer to “Adjusting the Screen Resolution”. And then select the correct resolution, refresh rate and make adjustments based on these instructions.
Does the blurring only occur at resolutions lower than the native (maximum) resolution?
Download Resolution file from the website (see Product support on page 3). Refer to “Adjusting the Screen Resolution”. 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.
The image is distorted, flashes or flickers.
Download Resolution file from the website (see Product support on page 3). Refer to “Adjusting the Screen Resolution”. 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 49 for details.
The image is displaced in one direction.
Download Resolution file from the website (see Product support on page 3). Refer to “Adjusting the Screen Resolution”. And then select the correct resolution, refresh rate and make adjustments based on these instructions.
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.
Power LED indicator
** The LED indicator is white or orange.
• If the LED lights up in solid white, the monitor is powered on.
• If the LED is illuminated in white 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. Download Resolution file from the website (see Product support on page 3). Refer to “Adjusting the Screen Resolution”. And then select the correct resolution, refresh rate and make adjustments based on these instructions.
• 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.
• If the LED is off, check the power supply mains socket, the external power supply and the mains switch.
OSD (On Screen Display) controls
**
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.
OSD (On Screen Display) messages
A message Out of Range on the screen during computer boot up process.
If there is a message Out of Range on the screen during computer boot up process, this means computer compatibility caused by operating system or graphic card. The system will adjust the refresh rate automatically. Just wait until the operating system is launched.
Audio
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.

References

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