Lenovo L27i-40 User manual

Lenovo
L27i-40
User Guide

Product No.
H23270FL0
67AB-KAC4-WW
Version 1 (September 2022)
All rights reserved Lenovo 2022
LENOVO products, data, computer software, and services are developed on earmarked funds and are sold to
government agencies as commodities as defined in 48 C.F.R. 2.101, with limited restricted rights of use,
duplication, and disclosure granted to the government agencies.
Restricted limited rights statement: If products, data, computer software, or services are delivered under a
General Services Manager "GSA" contract, their use, duplication, or disclosure is subject to the restrictions
outlined in Contract No. GS-35F-05925.

Contents
Safety Matters…………………………………………………………………………….… …………….…iv
General Safety Principles…………………………………….……………………….………………..…iv
Chapter 1. New Member Guide………………………………………………………………………….…1-1
Items List………………………………………………………………………………………….……1-1
Precautions For Use……………………………………………………………………………………1-2
Product Overview……………………………………………………………………………...………1-2
Set Up the Display……………………………………………………………………………...……...1-4
Chapter 2. Adjusting and Using the Display……………………………………………………………...…2-1
Comfort and Assistance Functions………………………………………………….………………....2-1
Arrange Your Working Area………………………………………………….…………………….....2-1
Placing and Viewing the Display……………………………………………………… …………...…2-1
Tips on Healthy Work Habits…………………………………………………….……………………2-2
Adjusting the Display Image…………………………………………………..…….………….…..….2-3
Select Supported Display Modes……………………………………………….…………….…..……2-7
Understanding Power Management……………………………………………….……….……..……2-8
Maintaining the Display……………………………………………………………….….……………2-9
Remove the Display Base and Support Arm…………………………….……………...………..……2-9
Wall-mounted (optional)……………………………………………………………………..…………2-9
Chapter 3. Reference Information……………………………………………………...……………...……3-1
Display Specifications……………………………………..…………….………………………………3-1
Troubleshooting…………………………………………………………………………………...…….3-3
Manually Install the Driver for the Display…………………………………………………………..…3-5
Appendix A. Services and Support………………………………..…………….…………………………A-1
. Register Your Option……………………………………………………………………………………A-1
Online Technical Support……………………………………………………………………………….A-1
Telephone Technical Support………………………………………………………….…………...…..A-1
Appendix B. Declaration……………………………………………………………….………………..…B-1
Trademark……………………………………………………………………..………………...………B-3
Recycling Informatiom …………………………………………………..……....…………...………B-2
Power Cord…………………………………………………………………..… …………..…………B-3

Safety Matters
General Safety Principles
For tips on safe computer use, please go to:
http://www.lenovo.com/safety
Before installing this product, please read the safety matters.
Danger
To avoid collision dangers:
• Do not remove the cover.
• Do not use the product without the base installed.
• Do not connect or disconnect the product during thunderstorm conditions.
• The power cord plug must be connected to a properly wired and grounded electrical
outlet.
• Any equipment connected to this product must also be connected to a properly
wired and grounded electrical outlet.
• When disconnecting the display, the plug must be unplugged from the power outlet.
The power outlet should be easy to plug and unplug the power cord. To take special
precautions against dangers when using, installing, servicing, transporting, or storing
the equipment, prepare the necessary instructional notes.
To reduce the risk of electric shock, do not perform any maintenance not described in
the operating instructions unless you are qualified to do so.
Handling:
• If the display weighs more than 18 kg (39.68 lbs.), it is recommended that two
people move or lift the display.
iv

Chapter 1. New Member Guide
This user guide provides users with detailed operating instructions. For a quick overview of the instructions,
please refer to the Setup coloring page for brief information.
Items List
The following items should be included in the package of this product:
■Quick Start Guide
■Display
■Stand (Screw*1PCS)
■Base
■Power Cord
■Signal Line (Subject to the practice)
Chapter 1. New Member Guide 1-1

Precautions For Use
To set up your display, please refer to the following illustration.
Note: Do not touch the screen area of the display. The screen area is a glass product and can be easily
damaged by friction or pressure.
1. Place the display screen down on a soft flat surface.
2. Align the stand with the base, and then tighten the screws clockwise.
3. Insert the installed stand base into the corresponding position on the back of the monitor, and then
tighten the screws clockwise.
Note: To install the VESA mount, see "Wall-mounted (optional)" on pages 2-9.
Product Overview
This section describes how to adjust the display position, set the user controls, and use the cable lock slot.
Adjustment Types
Tilt
See the figure below for an example of the tilt range.
Chapter 1. New Member Guide 1-2

Display Control
Different functions can be used through the key controls on the panel frame.
For information on how to use these key controls, see "Adjusting the Display Image" on pages 2-3.
Kensington anti-theft lock
Your display is equipped with a Kensington anti-theft lock, which is located on the back of the display.
Chapter 1. New Member Guide 1-3

Set Up the Display
This section describes how to set up the display.
Connecting and Powering on the Display
Note: Before performing this procedure, be sure to read the "Safety Matters" on page iv.
1. Turn off the power to the computer and all connected devices, and then unplug the computer's power
cord.
2. Connect the cables as shown in the figure below.
3. For computers with VGA connections.
Chapter 1. New Member Guide 1-4

4. For computers with HDMI1/2 connections.
5. Connect the audio cable of the speaker and the audio jack of the monitor to transmit the audio source
from HDMI.
Note: HDMI mode audio output.
Chapter 1. New Member Guide 1-5

6. Plug the power cord into the display, and then plug the display power cord and computer cord into a
grounded power outlet.
Note: A certified power cord must be used for this equipment. The installation and/o r equipment regulations
of the country concerned should be taken into account. The certified power cable used should not be lighter
than the normal PVC cable (marked H05VV-F 3G 0.75mm2 or H05VVH2-F2 3G 0.75mm2) as specified in
IEC 60227. In addition, synthetic rubber cords as specified in IEC 60245 (marked H05RR-F 3G 0.75mm2)
should be used.
7. Use cable clamps when connecting cables
Chapter 1. New Member Guide 1-6

8. Turn on the power to the display and computer.
9. When you install the display driver, download the driver that corresponds to your display model from the
Lenovo website at http://support.lenovo.com/docs/L27i_40. To install the driver, see the "Manually Install
the Driver for the Display" section on pages 3-5.
Chapter 1. New Member Guide 1-7

Chapter 2. Adjusting and Using the Display
This section describes how to adjust and use this display.
Comfort and Assistance Functions
Good ergonomic designs are important for the comfortable use of your personal computer. Your
workplace and the equipment you use should be arranged appropriately for your personal needs and the
type of work you do. In addition, healthy work habits can help you achieve optimal efficiency and comfort
when using a computer.
Arrange Your Working Area
Use a work surface of the right height and enough work area so that you can work comfortably.
Arrange your work area according to the way you use materials and equipment. Keep frequently used
materials neatly organized in your work area, and place frequently used items (such as a computer mouse
or telephone) in an easily accessible location. The placement and setup of equipment are very important
to your work posture. The following topics describe how to optimize equipment settings to achieve and
maintain a good working posture.
Placing and Viewing the Display
For comfortable viewing of the display, the following factors should be considered when placing and
adjusting computer displays:
•Viewing Distance: The recommended viewing distance between your eyes and the display screen
is 1.5X the screen diagonal. Solutions to meet this required distance in a small office include:
keeping the desk a certain distance from the wall or partition to allow space for the display, using a
flat panel or smaller display and keeping the display in the corner of the desk, or placing the
keyboard in an adjustable drawer board to create a deeper work surface.
•Display Height: If your display is not height-adjustable, place your head and neck in a natural,
comfortable (vertical or upright) position. If your display is not height-adjustable, you can place a
book or other sturdy object under the base of the display to achieve the desired height. The general
rule is to sit comfortably with the top of the display screen at eye level or slightly lower. However,
it is important to optimize the height of the display so that the relative position between the eyes
and the center of the display provides the right visual distance and a comfortable viewing
experience when the eye muscles are relaxed.
•Tilt: Adjusting the tilt of your display optimizes the appearance of your screen content and keeps
your head and neck in the best possible position.
•Regular Location: Place the display in such a way that overhead lighting or nearby windows do
not cause glare or reflection on the screen.
Chapter 2. Adjusting and Using the Display 2-1

Here are some additional tips for comfortable viewing of your display:
• Use adequate lighting for the type of work you do.
• Use display brightness, contrast, and image controls (if available) to optimize the image on the screen for
your visual needs.
• Keep the display screen clean so that you can see the content clearly.
Long periods of focused visual activity tend to strain the eyes. Be sure to periodically move away from the
display screen and gaze at a distant object to relax your eye muscles. If you have any questions about eye
strain or visual discomfort, consult vision care professional for advice.
Tips on Healthy Work Habits
The following is a summary of some important factors that are useful to keep you comfortable and
productive while using your computer.
•Good posture comes from equipment placement: The layout of your work area and the
placement of your computer equipment can have a significant impact on your posture while using
the computer. Be sure to follow the tips listed in " Arrange Your Working Area" on pages 2-1 to
optimize the placement and orientation of your equipment so you can maintain comfortable
posture and efficiency. In addition, be sure to use the adjustment features of your computer
components and office furniture to meet your needs, and adjust them over time as your needs
change.
•Slight changes in posture help keep you comfortable: the longer you sit in front of a computer,
the more important it becomes to pay attention to your work posture. Avoid maintaining one
posture for long periods. Regular slight changes in posture can help prevent possible discomfort.
Use the adjustment function provided by office furniture or equipment to adapt to changes in
posture.
•Regular short breaks help ensure healthy computing: Because computing is primarily a static
activity, it is especially important to take short breaks during the workday. Take regular breaks to
stand in front of your work area, stretch your limbs, walk around or have a drink, or otherwise take
a short break from using the computer. Taking short breaks during work allows for changes in
body posture that can help you stay comfortable and productive while working.
Chapter 2. Adjusting and Using the Display 2-2

Adjusting the Display Image
This section describes the functions of the user controls used to adjust the display image.
Using Direct Access Controls
When On Screen Display (OSD) is not displayed, you can use direct access controls.
Icon
Control
Description
Power
Press to turn On/Off the monitor.
Menu/OK
Press to open main menu while there is no OSD on the screen；
Press to enter next level on main menu or sub menu , or move
backwards through the sub menus;
Press and hold for 10 seconds to Lock/un-Lock all menu.
Right
It is a shortcut for adjusting Volume（HDMI）or Processing Please
wait（VGA）while there is no OSD on the screen ;
Press to enter sub menu;
Press to increase current values on adjustment bar.
Left
It is a shortcut for adjusting Volume（HDMI）or Processing Please
wait（VGA）while there is no OSD on the screen;
Press to move backwards through the sub menus;
Press to decrease current values on adjustment bar.
Up
Press to move lighting-indicator on main menu up to last one;
Press to Brightness shortcut key.
Down
Press to move lighting-indicator on main menu down to next one;
Press to Brightness shortcut key.
Source-
selecting
It is a shortcut for changing input signal while there is no OSD on the
screen or on power-saving mode;
Press and hold for 10 seconds to Enable/Disable the "DDC/CI" .
Chapter 2. Adjusting and Using the Display 2-3

Use the On-Screen Display (OSD) Control
When adjusting the settings, you can view the user controls through the OSD.
Use controls:
1. Press to open the OSD Main Menu.
2. Use ∧or ∨to move between icons. Select an icon and press to access the feature. If there is a
submenu, use ∧or ∨to move between options, and then press to select the feature. Use ∧or ∨to
make adjustments, and then press to save.
3. Press to exit the submenu in sequence, and then exit the OSD.
4. When OSD is not displayed, press and hold for 10 seconds to lock the OSD. In this way, you can
prevent accidental adjustment of the OSD. Press and hold for 10 seconds to unlock the OSD for OSD
adjustment.
5. DDC/CI is enabled by default. Press and hold for 10 seconds to disable/enable the DDC/CI
function. The message "DDC/CI disable (DDC/CI enable)" is displayed on the screen.
Chapter 2. Adjusting and Using the Display 2-4

Table 2-1. OSD Functions
Main Menu
Submenu
Description
Controls and Adjustment
Basic
Settings
Brightness
Adjust the overall
brightness of the
screen
Contrast
Adjust screen contrast
DCR
On
Electricity consumption
Changing this setting will
increase power consumption
Change/Cancel
Off
Display Mode
Standard
Game
Movie
Web
Picture
Scaling Mode
Full Screen
Non 16:9 signal adjustable
Original AR
Over Drive
Off
Normal
Extreme
Volume
0-100
Only HDMI
Mute
On
Off
Video range
Auto
Only HDMI
Full range 0-255
Limited range 16-235
Automatic
/
Only VGA
Clock
0-100
Phase
0-100
Horizontal Position
0-100
Vertical Position
0-100
Color
Settings
Bluish
/
Neutra
/
Reddish
/
User
Red 0-100
Green 0-100
Blue 0-100
sRGB
/
Low Blue Light
/
Input Signal
Auto Switch Input
Signal source switching

Port
Settings
HDMI1
HDMI2
VGA
FreeSync
Auto
Off
Menu
Settings
Information
Model Name：
L27i-40
Refresh Rate：
100Hz
Firmware：
LEN1.0
Serial Number：
Language
English
Français
Italiano
简体中文
Español
日本语
Deutsch
Pусский
ไทย
Українська
Menu Horizontal
0-100
Menu Vertical
0-100
Transparency
0-100
OSD Timeout
5-60S
LED Indicator
On
Off
Reset All Settings
Cancel
Factory Reset
Low Blue Light
Concerns on blue light affecting eye health have risen over the years. Blue light have wavelength between 300 nm to 500 nm. The
monitors under default setting modereduce blue light emissions. The monitors achieve the requirement of Low blue Light
(Hardware Solution).
Chapter 2. Adjusting and Using the Display 2-6

Select Supported Display Modes
The display mode used by the display is controlled by the computer. Therefore, you should refer to the
computer's documentation for detailed information on how to change the display mode.
When the display mode is changed, the image size, position, and shape may change. This is normal and the
image can be readjusted using the automatic image settings and image controls.
Unlike CRT displays, which require high refresh rates to minimize flicker, LCD or flat panel technology is
inherently flicker-free.
Note: If the system has previously been used in conjunction with a CRT display and is currently configured
for a display mode outside the range of that display, you may need to temporarily reconnect the CRT display
until the system has been reconfigured; it is best to set it to 1920x1080 (100Hz), the normal display mode.
The display modes shown below are factory optimized.
Table 2-2. Display modes set by the manufacturer
Timing sequence
Refresh rate
Signal Channel
640×480
60Hz
VGA/HDMI
640×480
72Hz
640×480
75Hz
720×400
70Hz
800×600
56Hz
800×600
60Hz
800×600
72Hz
800×600
75Hz
832×624
75Hz
1024×768
60Hz
1024×768
70Hz
1024×768
75Hz
1152×864
75Hz
1280×1024
60Hz
1280×1024
70Hz
1280×1024
75Hz
1440×900
60Hz
1600×900
60Hz
1680×1050
60Hz
1920×1080
60Hz
1366×768
60Hz
HDMI
1600×900
75Hz
1920×1080
75Hz
1920×1080
100Hz
Chapter 2. Adjusting and Using the Display 2-7

Understanding Power Management
The power management function is activated when the computer detects that the mouse or keyboard has not
been used for a user-defined time interval. There are several states as described in the table below.
For best performance, it is best to turn off the display at the end of the day, or when it is not in use for a
longer period during the day.
Table 2-3. Power Indicators
Status
Power indicator
Screen
Recovery Operation
On
White
Normal
Standby/Hang up
Amber
Blank
Press any key or move the mouse.
The response time may be slightly delayed.
Note: When there is no image output to the display, it
will also enter standby mode.
Off
Off
Blank
Press the power button to power on.
There may be a slight delay before the image is
redisplayed.
Power Management Mode
VESA Mode
Horizontal
Synchronization
Vertical
Synchronization
Video
Power
indicator
Power
consumption
Normal Operation
Active
Active
Events
White
36W (Max)*
19.5W (typical)
Active-Off Mode
Inactive
Inactive
Close
Amber
Less than 0.5W
Off
-
-
-
Off
Less than 0.3W
* Maximum power consumption for maximum brightness.
This document is for reference only and reflects laboratory performance. Your product performance will
vary depending on the software, components, and peripherals you order, and it should not be your
responsibility to update this information. Accordingly, customers should not rely on this information to
make decisions regarding electronic fault tolerance or similar items. We make no express or implied
warranties as to accuracy or completeness.
Chapter 2. Adjusting and Using the Display 2-8

Maintaining the Display
Always turn off the power to the display before performing any maintenance work on the display.
Do not:
• Let water or liquids spill onto the display.
• Use solvents or abrasive substances.
• Use flammable cleaning materials to clean the display or any other electronic device.
• Touch the screen area of the display with sharp or abrasive objects. Such contact may cause permanent
damage to the screen.
• Use any cleaner that contains an anti-static solution or similar additive. Otherwise, the coating of the
screen area may be damaged.
Be sure to:
• Wipe the case and screen gently with a soft cloth lightly dampened in water.
• Use a damp cloth and a little flexible cleaner to remove fingerprints and grease.
Remove the Display Base and Support Arm
Step 1: Place the monitor on a flat surface.
Step 2: Loosen the screws and press and hold the quick release button on the support arm to separate the
support arm from the monitor.
Step 3: Loosen the screws to separate the base from the support arm.
Wall-mounted (optional)
Refer to the instructions attached with the base assembly. To convert the LCD from a desktop to a wall
mount, perform the following steps：
Step 1: Make sure the power button is off and unplug the power cord.
Step 2: Place the LCD face down on a towel or blanket.
Chapter 2. Adjusting and Using the Display 2-9