Dahua NVR4108HS-4KS2/L NVR IP Videorecorder (8 Kanal) Manual [EN]

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Acer LCD Monitor
User's Guide
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Copyright © 2019. Acer Incorporated. All Rights Reserved.
Acer LCD Monitor User’s Guide Original Issue: 09/2019
Changes may be made periodically to the information in this publication without obligation to notify any person of such revisions or changes. Such changes will be incorporated in new editions of this manual or supplementary documents and publications. This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims the implied warranties of merchantability or fitness for a particular purpose.
Record the model number, serial number, purchase date and place of purchase information in the space provided below. The serial number and model number are recorded on the label affixed to your computer. All correspondence concerning your unit should include the serial number, model number and purchase information.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronically, mechanically, by photocopy, recording or otherwise, without the prior written permission of Acer Incorporated.
Acer LCD Monitor User's Guide
Model number: _____________________________
Serial number: _____________________________
Date of purchase: ___________________________
Place of purchase: __________________________
Acer and the Acer logo are registered trademarks of Acer Incorporated. Other companies’ product names or trademarks are used herein for identification purposes only and belong to their respective companies.
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Special notes on LCD monitors
The following are normal with the LCD monitor and do not indicate a problem.
Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the power switch and then turn it on again to make sure the flicker disappears.
You may find slightly uneven brightness on the screen depending on the desktop pattern you use.
The LCD screen has 99.99% or more effective pixels. It may include blemishes of 0.01% or less such as a missing pixel or a pixel lit all the time.
Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the power switch for a few hours.
Acer monitor is purposed for video and visual display of information obtained from electronic devices.
Information for your safety and comfort
Safety instructions
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Read these instructions carefully. Keep this document for future reference. Follow all warnings and instructions marked on the product.
Cleaning your monitor
Please carefully follow these guidelines when cleaning the monitor:
Always unplug the monitor before cleaning.
Use a soft cloth to wipe the screen and cabinet front and sides.
Connecting/disconnecting the device
Observe the following guidelines when connecting and disconnecting power from the LCD monitor:
Make sure the monitor is attached to its base before connecting the power cord to the AC power outlet.
Make sure both the LCD monitor and the computer are turned off before connecting any cable or unplugging the power cord.
If the system has multiple sources of power, disconnect power from the system by unplugging all power cords from the power supplies.
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Accessibility
Be sure that the power outlet you plug the power cord into is easily accessible and located as close to the equipment operator as possible. When you need to disconnect power from the equipment, be sure to unplug the power cord from the electrical outlet.
Safe listening
To protect your hearing, follow these instructions.
Gradually increase the volume until you can hear it clearly and comfortably and without distortion.
After setting the volume level, do not increase it after your ears have adjusted.
Limit the amount of time listening to music at high volume.
Avoid turning up the volume to block out noisy surroundings.
Turn the volume down if you can’t hear people speaking near you.
Warnings
Do not use this product near water.
Do not place this product on an unstable cart, stand or table. If the product falls, it could be seriously damaged.
Slots and openings are provided for ventilation to ensure reliable operation of the product and to protect it from overheating. These openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug or other similar surface. This product should never be placed near or over a radiator or heat register, or in a built-in installation unless proper ventilation is provided.
Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind onto or into the product.
To avoid damage of internal components and to prevent battery leakage, do not place the product on a vibrating surface.
Never use it under sporting, exercising, or any vibrating environment which will probably cause unexpected short current or damage internal devices.
Using electrical power
This product should be operated from the type of power indicated on the marking label. If you are not sure of the type of power available, consult your dealer or local power company.
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Do not allow anything to rest on the power cord. Do not locate this product where people will walk on the cord.
If an extension cord is used with this product, make sure that the total ampere rating of the equipment plugged into the extension cord does not exceed the extension cord ampere rating. Also, make sure that the total rating of all products plugged into the wall outlet does not exceed the fuse rating.
Do not overload a power outlet, strip or receptacle by plugging in too many devices. The overall system load must not exceed 80% of the branch circuit rating. If power strips are used, the load should not exceed 80% of the power strip’s input rating.
This product’s power cord is equipped with a three-wire grounded plug. The plug only fits in a grounded power outlet. Make sure the power outlet is properly grounded before inserting the power cord plug. Do not insert the plug into a non-grounded power outlet. Contact your electrician for details.
Warning! The grounding pin is a safety feature. Using a power outlet that is not properly grounded may result in electric shock and/or injury.
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Note:
The grounding pin also provides good protection from unexpected noise produced by other nearby electrical devices that may interfere with the performance of this product.
Use the product only with the supplied power supply cord set. If you need to replace the power cord set, make sure that the new power cord meets the following requirements: detachable type, UL listed/CSA certified, type SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.5 meters (15 feet) maximum length.
Product servicing
Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage points or other risks. Refer all servicing to qualified service personnel.
Unplug this product from the wall outlet and refer servicing to qualified service personnel when:
the power cord or plug is damaged, cut or frayed
liquid was spilled into the product
the product was exposed to rain or water
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the product has been dropped or the case has been damaged
the product exhibits a distinct change in performance, indicating a need for service
the product does not operate normally after following the operating instructions
Note:
Adjust only those controls that are covered by the operating instructions, since improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal condition.
Potentially explosive environments
Switch off your device in any area with a potentially explosive atmosphere and obey all signs and instructions. Potentially explosive atmospheres include areas where you would normally be advised to turn off your vehicle engine. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death. Switch off the device near gas pumps at service stations. Observe restrictions on the use of radio equipment in fuel depots, storage and distribution areas; chemical plants; or where blasting operations are in progress. Areas with a potentially explosive atmosphere are often, but not always, marked. They include below deck on boats, chemical transfer or storage facilities, vehicles using liquefied petroleum gas (such as propane or butane), and areas where the air contains chemicals or particles such as grain, dust or metal powders.
Additional safety information
Your device and its enhancements may contain small parts. Keep them out of the reach of small children.
IT Equipment Recycling Information
Acer is strongly committed to environmental protection and views recycling, in the form of salvaging and disposal of used equipment, as one of the company’s top priorities in minimizing the burden placed on the environment.
We at Acer are very conscious of the environmental effects of our business and strive to identify and provide the best working procedures to reduce the environmental impact of our products.
For more information and help when recycling, please go to this website: https://www.acer-group.com/sustainability/en/our-products-environment.html
Visit www.acer-group.com for further information on the features and benefits of our other products.
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Disposal instructions
This symbol on the product or on its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local office, your household waste disposal service or the shop where you purchased the product. https://www.acer-group.com/sustainability/en/our-products-environment.html
Recycling Information for the United States of America
Acer encourages information technology (IT) equipment owners to responsibly recycle their equipment when it is no longer needed. Acer offers programs and services to assist equipment owners with this process. For more information on recycling IT equipment, please go to: https://www.acer.com/ac/en/US/content/recycling
LCD pixel statement
The LCD unit is produced with high-precision manufacturing techniques. Nevertheless, some pixels may occasionally misfire or appear as black or red dots. This has no effect on the recorded image and does not constitute a malfunction.
This product has been shipped enabled for power management:
Activate display’s Sleep mode within 5 minutes of user inactivity.
Wake the monitor when it is in Active Off mode, move the mouse or press any keyboard key.
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Tips and information for comfortable use
Computer users may complain of eyestrain and headaches after prolonged use. Users are also at risk of physical injury after long hours of working in front of a computer. Long work periods, bad posture, poor work habits, stress, inadequate working conditions, personal health and other factors greatly increase the risk of physical injury.
Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis, tenosynovitis or other musculoskeletal disorders. The following symptoms may appear in the hands, wrists, arms, shoulders, neck or back:
numbness, or a burning or tingling sensation
aching, soreness or tenderness
pain, swelling or throbbing
stiffness or tightness
coldness or weakness If you have these symptoms, or any other recurring or persistent discomfort
and/or pain related to computer use, consult a physician immediately and inform your company’s health and safety department.
The following section provides tips for more comfortable computer use.
Finding your comfort zone
Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest, or raising your sitting height to achieve maximum comfort. Observe the following tips:
refrain from staying too long in one fixed posture
avoid slouching forward and/or leaning backward
stand up and walk around regularly to remove the strain on your leg muscles
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Taking care of your vision
Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room lighting, poorly focused screens, very small typefaces and low-contrast displays could stress your eyes. The following sections provide suggestions on how to reduce eyestrain.
Eyes
Rest your eyes frequently.
Give your eyes regular breaks by looking away from the monitor and focusing on a distant point.
Blink frequently to keep your eyes from drying out.
Display
Keep your display clean.
Keep your head at a higher level than the top edge of the display so your eyes point downward when looking at the middle of the display.
Adjust the display brightness and/or contrast to a comfortable level for enhanced text readability and graphics clarity.
Eliminate glare and reflections by:
placing your display in such a way that the side faces the window or
any light source
minimizing room light by using drapes, shades or blinds
using a task light
changing the display’s viewing angle
using a glare-reduction filter
using a display visor, such as a piece of cardboard extended from
the display’s top front edge
Avoid adjusting your display to an awkward viewing angle.
Avoid looking at bright light sources, such as open windows, for extended periods of time.
Developing good work habits
Develop the following work habits to make your computer use more relaxing and productive:
Take short breaks regularly and often.
Perform some stretching exercises.
Breathe fresh air as often as possible.
Exercise regularly and maintain a healthy body.
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TABLE OF CONTENTS
UNPACKING ............................................................................................... 1
ATTACHING/REMOVING THE BASE ......................................................... 2
SCREEN POSITION ADJUSTMENT .......................................................... 4
CONNECTING THE POWER CORD .......................................................... 5
POWER SAVING ......................................................................................... 7
DDC ............................................................................................................. 7
CONNECTOR PIN ASSIGNMENT .............................................................. 8
STANDARD TIMING TABLE ..................................................................... 10
INSTALLATION ..........................................................................................11
USER CONTROLS .................................................................................... 12
TROUBLESHOOTING .............................................................................. 24
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UNPACKING
Please check the following items are present when you unpack the box, and save the packing materials in case you will need to ship or transport the monitor in future.
* Below items shown here is indicative only. The actual product may be
different.
LCD Monitor Quick Start Guide AC Power Cord (Optional)
Power adapter
(Optional)
DP cable
(Optional)
USB Type C Cable
(Optional)
D-Sub Cable (Optional)
Audio Cable (Optional)
HDMI Cable (Optional)
USB Cable (Optional)
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ATTACHING/REMOVING THE BASE
Note: Remove the monitor and monitor base from its packaging. Carefully place the monitor face-down on a stable surface -- use a cloth to avoid scratching the screen.
1. Attach the monitor stand arm to the base.
比例
2. Ensure that the base is screwed tight onto the monitor stand arm.
比例
Note: If using a wall-mounting kit, we recommend using a VESA
mounting kit (100 mm × 100 mm) and M4 × 10 (L) mm screws to
secure the monitor to the wall.
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Follow these instructions to remove the base from the monitor.
Note:
Carefully place the monitor face down on a flat surface-sue a
cloth pad to prevent scratching the screen.
1. Press the release latch with a screwdriver.
比例
2. After pressing the release latch, remove the base from the monitor.
比例
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SCREEN POSITION ADJUSTMENT
In order to optimize the best viewing position, you can adjust the height/tilt of the monitor.
Tilt
Please see the illustration below for an example of the tilt range.
15°
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CONNECTING THE POWER CORD
Check first to make sure that the power cord you use is the correct type required for your area.
This monitor has a universal power supply that allows operation in either 100/120V AC or 220/240 V AC voltage area. No user-adjustment is required.
Plug one end of the AC power cord to an AC inlet, and plug the other end into an AC outlet.
For unit using at 120 V AC: Use a UL Listed Cord Set, Type SVT wire and plug rated 10 A/125 V.
For unit using at 220/240 V AC (outside of U.S.): Use a Cord Set consisting of H05VV-F cord and plug rated 10 A, 250 V.
The cord set should have the appropriate safety approvals for the country in which the equipment will be installed.
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SAFETY PRECAUTION
Avoid placing the monitor, or any other heavy object, on the power cord to avoid damage to the cable.
Do not expose the monitor to rain, excessive moisture, or dust.
Do not cover the ventilation slots or openings of the monitor. Always put the monitor in a place where there is adequate ventilation.
Avoid placing the monitor against a bright background or where sun-light or other light sources may reflect on the face of the monitor. Place the monitor just below eye level.
Handle with care when transporting the monitor.
Refrain from giving shock or scratch to the screen, as screen is fragile.
In order to prevent damage to the monitor, do not lift the monitor by its base.
CLEANING YOUR MONITOR
Please carefully follow the below guidelines when cleaning the monitor.
Always unplug the monitor before cleaning.
Use a soft cloth to gently wipe the screen and cabinet front and sides.
NEVER SPRAY OR POUR ANY LIQUID DIRECTLY ONTO THE SCREEN OR CASE.
PLEASE DO NOT USE ANY AMMONIA OR ALCOHOL-BASED CLEANERS ON THE LCD DISPLAY SCREEN OR CASE.
Acer will not be liable for damage resulting from use of any ammonia or alcohol-based cleaners.
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POWER SAVING
The monitor will be driven into “Power Saving” mode by the control signal from the display controller, as indicated by the LED flashes power LED.
State LED Light
ON Blue
Power Saving Mode
The power saving states will be kept until a control signal has been detected or the keyboard or mouse is activated. The recovery time from Active OFF state back to ON state is around 3 seconds.
Type 1: Amber Type 2: LED flashes
DDC
To make your installation easier, the monitor is able to Plug and Play with your system if your system also supports DDC protocol. The DDC (Display Data Channel) is a communication protocol through which the monitor automatically informs the host system about its capabilities, for example, supported resolutions and corresponding timing. The monitor supports DDC2B standard.
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CONNECTOR PIN ASSIGNMENT
19-Pin Color Display Signal Cable*
PIN Meaning PIN Meaning
1. TMDS Data2+ 10. TMDS Clock+
2. TMDS Data2 Shield 11. TMDS Clock Shield
3. TMDS Data2- 12. TMDS Clock-
4. TMDS Data1+ 13. CEC
5. TMDS Data1 Shield 14. Reserved (N.C. on device)
6. TMDS Data1- 15. SCL
7. TMDS Data0+ 16. SDA
8. TMDS Data0 Shield 17. DDC/CEC Ground
9. TMDS Data0- 18. +5V Power
19. Hot Plug Detect
* only for certain models
20-Pin Color Display Signal Cable*
PIN Description PIN Description
1. Lane0(p) 11. GND
2. GND 12. Lane3(n)
3. Lane0(n) 13. Config1
4. Lane1(p) 14. Config2
5. GND 15. AUX_CH (n)
6. Lane1(n) 16. GND
7. Lane2(p) 17. AUX_CH (p)
8. GND 18. Hot Plug Detect
9. Lane3(n) 19. DP Power_Return
10. Lane3(p) 20. DP Power
* only for certain models
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15-pin color display signal cable
Threading Explanations Threading Explanations
1. Red 9. +5 V
2. Green 10. Logic ground
3. Blue 11. Monitor ground
4. Monitor ground 12. DDC-continuous data
5. DDC return 13. Line sync signal
6. Red-ground 14. Field sync signal
7. Green-ground 15. DDC-continuous clock
8. Blue-ground
* only for certain models
24-pin USB Type C cable
PIN No. Signal Assignment PIN No. Signal Assignment
A1 GND B12 GND
A2 SSTXp1 B11 SSTXp1
A3 SSTXn1 B10 SSTXn1
A4 VBUS B9 VBUS
A5 CC1 B8 CC1
A6 Dp1 B7 Dp1
A7 Dn1 B6 Dn1
A8 SBU1 B5 SBU1
A9 VBUS B4 VBUS
A10 SSTXn2 B3 SSTXn2
A11 SSTXp2 B2 SSTXp2
A12 GND B1 GND
* only for certain models
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STANDARD TIMING TABLE
Mode Resolution Remark
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25
VGA
MAC 640x480 66.66Hz
VESA 720x400 70Hz
SVGA
MAC 832x624 74.55Hz
XGA
MAC 1152x870 75Hz
VES
A
SXGA
VESA 1280x720 60Hz
WXGA 1280x800 60Hz
WXGA+ 1440x900 60Hz
WSXGA+ 1680x1050 60Hz
UXGA
640x480 60Hz
640x480 72Hz
640x480 75Hz
800x600 56Hz
800x600 60Hz
800x600 72Hz
800x600 75Hz
1024x768 60Hz
1024x768 70Hz
1024x768 75Hz
1152x864 75Hz
1280x960 60Hz
1280x1024 60Hz
1280x1024 75Hz
1920x1080 60Hz
1920×1080 75Hz
1920×1080
100Hz
Only for HDMI
Note:
If the monitor support DisplayPort, it is purposely supporting the G-Sync compatible/Freesync/Freesync Premium/Freesync Premium Pro/Adaptive-Sync (DP) support technology. This technology allows Freesync/Freesync Premium/Freesync Premium Pro/Adaptive-Sync (DP) supported graphics source to dynamically adjust display refresh rate based on typical content frame rates in order to eliminate stuttering and enhance low-latency display.
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INSTALLATION
To install the monitor to your host system, please follow the steps as given below:
Steps
1. Turn off your computer and unplug the power cord.
2. 2-1 Connect Video Cable a. Make sure both the monitor and computer are powered-OFF. b. Connect the VGA cable to the computer. (Optional)
2-2 Connect HDMI Cable (Only HDMI-input model) (Optional)
a. Make sure both the monitor and computer are powered-OFF. b. Connect the HDMI cable to the computer.
2-3 Connect DP Cable (Only DP-input model) (Optional)
a. Make sure both the monitor and computer are powered-OFF. b. Connect the DP cable to the computer.
3. Connect the Audio cable (only Audio input model) (optional)
4. Connect the USB Type C Cable (only USB Type C input model) (Optional)
5. Insert the monitor power cable into the power port at the back of the
monitor.
6. Plug the power cords of your computer and your monitor into a near by
electrical outlet.
7. Select Power-off USB charge ON/OFF to enable/disable Power-off USB
charge function. (Optional)
VGA
HDMI
~
HDMI (optional) (optional)
VGA IN (optional) USB (optional)
AUDIO IN (optional) DP (optional)
AUDIO OUT(optional) USB Type C (Optional)
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Note: The location and names of the sockets on the monitor may vary according to monitor model, and some sockets may not available for some models.
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USER CONTROLS
Base Controls
Note: The location and names of the function buttons and power button on the monitor may vary according to monitor model, and some button may not available for some models.
Type 1 No. Description
1 Go to the main menu.
2 Enter the source mode.
3/4 HotKey 1, 2 buttons. Press to activate user defined
hotkey function.
5 In the powered-off state, pressing the button powers
on the device; in the powered-on state, pressing the button normally enters the mode switching menu, and long- pressing for 3 seconds powers off the device.
Type 2 No. Description
1 Enter the mode switching menu.
2 Enter brightness adjustment.
3 Enter the source mode.
4 Go to the main menu.
5 Power on/off.
Type 3-1 No. Item Description
Power button/
1
indicator
Hotkey 1, 2
2
buttons
3 Input button Press to toggle input sources.
4 Navi/OK button
Type 3-2 No. Item Description
Menu/Navi/
1
OK button
Turns the monitor on/off. Blue indicates power on. Amber indicates standby/power saving mode.
Press to activate user defined hotkey function.
Press to activate the OSD menu, then use it as directional key to highlight the desired function.
Press it again to enter a selection.
Power on/Long press to Power off. Enter the main menu, Select/Adjust
menu options.
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Using the Shortcut Menu
Note:
The following content is for general reference only. Actual
product specifications may vary.
The OSD (on-screen display) can be used for adjusting the settings of your LCD Monitor. Press the MENU key to open the OSD. You can use the OSD to adjust the picture quality, OSD position and general settings. For advanced settings, please refer to following page:
The button and the actual functions depend on detail model. Some functions might be grayed if the model can not support.
Main Page
Turn Modes on or off
Note:
Please select the button function operation according to the
actual button type.
The button of Type 1
From any function page, press buttons 5 to open the Modes control and select which user-defined profile to use (please see the OSD section for more information).
The button of Type 2
From any function page, press buttons 1 to open the Modes control and select which user-defined profile to use (please see the OSD section for more information).
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The button of Type 3-1
From any function page, press to open the Modes control and select which user-defined profile to use (please see The Function page section for
more information).
The Function page
The button of Type 1 Double-press Button 1 to select the menu function, and then use Buttons
1/2/3/4 to adjust the settings you need. When finished, use Button 4 to return to the previous level or exit the menu.
The button of Type 2 Double-press Button 4 to select the menu function, and then use Buttons
1/2/3/4 to adjust the settings you need. When finished, use Button 4 to return to the previous level or exit the menu.
The button of Type 3-1 Open the Function page to select a menu function, and adjust the settings
which you want using the Navi/OK button. When you are done, press to
exit. You can also press from any function page to select your preferred Mode.
The button of Type 3-2 Open the Function page to select the menu function, and then use the
Button Menu/Navi/Ok to adjust the settings you need. When finished, Pull left the Button Menu/Navi/Ok to return to the previous level or exit the menu.
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Adjusting the Setings
Use buttons to open the OSD and navigate to the Settings you need.
The button of Type 1
1. Double-press Button 1 to bring up the OSD.
2. Use Buttons 1/2 to select the Settings you need from the OSD.
3. Then press Button 3 to navigate to the setting you want to adjust.
The button of Type 2
1. Double-press Button 4 to bring up the OSD.
2. Use Buttons 1/2 to select the Settings you need from the OSD.
3. Then press Button 3 to navigate to the setting you want to adjust.
The button of Type 3-1
1. Press the MENU button to open the OSD.
2. Using the Navi/Оk button, to select the Settings you need from the
OSD.
3. Then Using the Navi/Оk button to navigate to the setting you want to
adjust.
The button of Type 3-2
1. Press the Menu/Navi/OK button to open the OSD.
2. Using the Menu/Navi/Ok button, to select the Settings you need from
the OSD.
3. Then Using the Menu/Navi/Ok button to navigate to the setting you
want to adjust.
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Adjusting the Picture
Low Blue Light
Information
Information
Standard
1. Brightness: Adjust the brightness from 0 to 100.
Note:
Adjusts the balance between light and dark shades.
2. Contrast: adjust the contrast from 0 to 100.
Note:
Sets the degree of difference between light and dark areas.
3. Low Blue Light: Filter out blue light to protect your eyes by adjusting
how much blue light is shown --Level 1, 2, 3, 4.
Note:
A lower level allows more blue light to pass through, so in order to achieve the best protection, please select a higher level, of which Level 4 is in the best state.
4. Black Boost: This boosts the amplitude of the dark color levels of the display— blacks will be less black. The higher the level, the higher the boost.
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5. ACM: Turn ACM on or off. The default is off.
6. Super Sharpness technology can simulate high-resolution images by boosting the pixel density of the original source. It can make images sharper and clear.
7. H. Position (only Analog input model): Adjust the horizontal position from 0 to 100.
8. V. Position (only Analog input model): Adjust the vertical position from 0 to 100.
9. Focus (only Analog input model): Adjust the focus from 0 to 100.
10. Clock (only Analog input model): Adjust the clock from 0 to 100.
Adjusting the Color
Information
Information
1. Gamma mode allows you to adjust the luminance tone. The default value is 2.2 (standard value for Windows).
2. Color temperature: Default is warm. You can choose Cool, Warm, Normal, Low Blue Light or User.
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3. Modes: Select your preferred mode.
4. sRGB mode is for getting better color matching representation with the peripheral device, such as DSCs or printers.
5. Grayscale Mode: Turn grayscale mode On or Off.
6. 6-axis Hue: Adjust the red, green, blue, yellow, magenta and cyan hue.
7. 6-axis Saturate: Adjust the red, green, blue, yellow, magenta and cyan saturation.
Adjusting the Audio
Information
1. Volume: Adjusts the volume.
2. Mute: Select On or Off.
Adjusting the Performance
Over Drive
FreeSync
Refresh Rate Num
VRB
Information
Normal
Off
Off
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Information
Over Drive
FreeSync Premium
Refresh Rate Num
VRB
Normal
Off
Off
Information
Information
Over Drive
FreeSync Premium Pro
Refresh Rate Num
VRB
Over Drive
Refresh Rate Num
VRB
Normal
Off
Off
Normal
Off
Off
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1. Over Drive: Select Off, Normal, or Extreme.
Note:
1. If FreeSync/Freesync Premium/Freesync Premium Pro/ Adaptive-Sync is “ON”, then the Over Drive selection is set to “Normal” automatically
2. If FreeSync/Freesync Premium/Freesync Premium Pro/ Adaptive-Sync is “OFF”, then the user can set Over Drive to either one of the three settings including: (a) Extreme (b) Normal (c) Off
2. FreeSync: Select On or Off. FreeSync is available for AMD supported graphic cards only.
Freesync Premium: Select On or Off. Freesync Premium is available for AMD supported graphic cards only.
Freesync Premium Pro: Select On or Off. Freesync Premium pro is available for AMD supported graphic cards only.
Adaptive-Sync: Select On or Off. Adaptive-Sync is available for AMD supported graphic cards only.
Note:
Freesync/Freesync Premium/Freesync Premium Pro/
Adaptive-Sync depend on detail model.
3. Refresh Rate Num: Display the panel’s current refresh rate on the screen.
4. VRB: When VRB is Extreme or Normal, VRB provides a sharper and clearer dynamic picture; the default is Off.
• VRB does not support PIP/PBP Mode and HDR Mode. (Selective models)
• When VRB is Extreme or Normal, Freesync/Freesync Premium/ Freesync Premium Pro/Adaptive-Sync is automatically turned off.
• VRB will affect the brightness of the following: Logo, Aim Point, Message and Input Icon.
• VRB feature is dependent on the monitor’s maximun refresh rate. And it is available when the refresh rate is greater or equal to 75Hz.
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Adjusting the OSD
Information
1. Language: Set the OSD menu language.
2. OSD Timeout: Adjust the delay before turning the off the OSD menu.
3. Transparency: Select the transparency when using gaming mode. The transparency can be 0% (OFF), 20%, 40%, 60%, or 80%.
4. OSD Lock: OSD Lock function is used to prevent OSD button from being pressed accidentally.
Note:
1. For Side 9 key, Must press Navi Key in the middle to unlock OSD.
2. For side/Bottom 1/5key, except power key can be unlocked.
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Adjusting the System
DP Format
PIP/PBP
Information
Information
DP1.2
1. Input: Select the source from an available input source.
2. Auto Source: Automatically searches for available input sources.
3. Hot Key Assignment: Select the function of Hot Key 1 or Hot Key 2.
4. Wide Mode: You can select which screen aspect you are using.
5. PIP/PBP: The options for PIP/PBP Mode are Off, PIP Large, PIP Small, and PBP. You can also adjust the PIP Position, PBP Size, Sub Source, Source Swap, and Audio Source.
6. DDC/CI: Allows the monitor settings to be set through the software on the PC.
Note: DDC/CI, short for Display Data Channel/Command Interface, which allows monitor controls to be sent via software.
7. HDMI Black Level: You can select the level of blackness under HDMI source. The options are Normal and Low.
8. Quick Start Mode: Enable monitor rapidly.
9. Power-off USB charge (Optional): Turn On or Off. (*only for USB function)
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Product information
55KHZ
Information
60KHZ
60HZ
55KHZ
60HZ
1. View the basic information of the machine.
2. Reset All Settings: Reset all settings to factory defaults.
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TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem.
(HDMI/DP Mode)
Problems Current Status Remedy
Using OSD, adjust brightness and contrast to maximum or reset to their default settings.
Check the power switch.
Check if AC power cord is properly connected to the monitor.
Check that the video signal cable is properly connected to the back of the monitor.
Check whether the computer system’s power is on.
Check the audio cable with the host PC is connected.
Check if the volume setup of the host PC is in minimum position and try to raise the volume level.
No Picture
Abnormal Sound (Only Audio-Input model) (Optional)
LED ON
LED OFF
LED flashes
No sound, or sound level is too low
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(VGA Mode)
Problems Current Status Remedy
Using OSD, adjust brightness and
Check the power switch.
Check if AC power cord is properly
Check if video signal cable is properly
Check if the power of computer system
Check if the specification of graphics
Using OSD, adjust RESOLUTION,
Using OSD, in case of missing full-
Wait for a few seconds after adjusting
Check the audio cable with the host PC
Check if the volume setup of the host PC
No Picture
Abnormal Picture
Abnormal Sound (Only Audio- Input
model) (Optional)
LED ON
LED OFF
LED flashes
Unstable Picture
Display is missing, center shift, or too small or too large in display size
No sound, or sound level is too low
contrast to maximum or reset to their default settings.
connected to the monitor.
connected at the back of monitor.
is ON.
adapter and monitor is in compliance which may be causing the input signal frequency mismatch.
CLOCK, CLOCK-PHASE, H-POSITION and V-POSITION with non-standard signals.
screen image, please select other resolution or other vertical refresh timing.
the size of the image before changing or disconnecting the signal cable or powering OFF the monitor.
is connected.
is in minimum position and try to raise the volume level.
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Declaration of Conformity
EU Declaration of Conformity
KA240Y KA240Y
EN55032:2015+A1: 2020 Class B
EN IEC 61000-3-2:2019+A1:2021 Class D
EN IEC 63000: 2018
Acer Incorporated (New Taipei City)
EN 55035:2017+A11: 2020
EN 61000-3-3:2013+A2:2021
3
Nov. 22,2023
Page 37
Federal Communications Commission Declaration of Conformity
KA240Y
KA240Y
xxxxxx
(“x” = 0~9, a ~ z, A ~ Z, or blank)
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