Table of Contents
- Product Number
- Contents
- Safety information
- Safety and Maintenance Guidelines
- Chapter 1. Getting started
- Chapter 2. Adjusting and using your monitor
- Chapter 3. Reference information
Lenovo C27-30 User Manual
Displayed below is the user manual for C27-30 by Lenovo which is a product in the Computer Monitors category. This manual has pages.
Related Manuals
Lenovo
C27-30,
User Guide
© Copyright Lenovo 2020 i
Product Number
D20270FD0
62AA-KAR6-WW
First Edition (07 2020)
© Copyright Lenovo 2020
All rights reserved.
LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to
governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and
disclosure.
LIMITED AND RESTRICTED RIGHTS NOTICE: IF products, data, computer software, or services are delivered pursuant a General
Services Administration "GSA" contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-
05925.
ii ©Copyright Lenovo 2020
Contents
Product Number ....................................................................................................................................................................... i
Contents ................................................................................................................................................................................. ii
Safety information.................................................................................................................................................................. iii
Safety and Maintenance Guidelines ........................................................................................................................................ iv
Getting started .............................................................................................................................................. 1-1
Shipping contents ..................................................................................................................................................................... 1-1
Notice for use ............................................................................................................................................................................ 1-1
Product overview ...................................................................................................................................................................... 1-2
Types of adjustments ......................................................................................................................................................... 1-2
User controls ...................................................................................................................................................................... 1-2
Cable lock slot .................................................................................................................................................................... 1-2
Setting up your monitor ............................................................................................................................................................ 1-3
Connecting and turning on your monitor .......................................................................................................................... 1-3
Registering your option ..................................................................................................................................................... 1-5
Adjusting and using your monitor .................................................................................................................. 2-1
Comfort and accessibility .......................................................................................................................................................... 2-1
Arranging your work area ......................................................................................................................................................... 2-1
Health Administration ............................................................................................................................................................... 2-2
Low Blue Light .................................................................................................................................................................... 2-5
Accessibility information ................................................................................................................................................... 2-5
Adjusting your monitor image .................................................................................................................................................. 2-6
Using the direct access controls ........................................................................................................................................ 2-6
Using the On-Screen Display (OSD) controls ..................................................................................................................... 2-6
Selecting a supported display mode ......................................................................................................................................... 2-9
Understanding power management ......................................................................................................................................... 2-9
Caring for your monitor .......................................................................................................................................................... 2-10
Detaching the monitor stand .................................................................................................................................................. 2-10
Wall Mounting (Optional) ....................................................................................................................................................... 2-10
Reference information .................................................................................................................................. 3-1
Monitor specifications .............................................................................................................................................................. 3-1
Troubleshooting ........................................................................................................................................................................ 3-2
Manual image setup ................................................................................................................................................................. 3-4
Manually installing the monitor driver .............................................................................................................................. 3-5
Service information ........................................................................................................................................................... 3-7
Appendix A. Service and Support ..................................................................................................................................... A-1
Registering your option ............................................................................................................................................................. A-1
Online technical support ........................................................................................................................................................... A-1
Telephone technical support .................................................................................................................................................... A-1
Appendix B. Notices ........................................................................................................................................................ B-1
Recycling information ............................................................................................................................................................... B-2
Collecting and recycling a disused Lenovo computer or monitor ...................................................................................... B-2
Disposing of Lenovo computer components ..................................................................................................................... B-2
Trademarks ............................................................................................................................................................................... B-3
Power cords and power adapters ............................................................................................................................................. B-3
© Copyright Lenovo 2020 iii
Safety information
General Safety guidelines
For tips to help you use your computer safety, go to:
http://www.lenovo.com/safety
Before installing this product, read the Safety Information.
iv ©Copyright Lenovo 2020
Safety and Maintenance Guidelines
Important Safety Information
The power cord is designed for use with your monitor. Don’t use a different cord, use only a power source and
connection compatible with this monitor.
WARNING: Always connect your monitor, the computer, and other equipment to a grounded (earthed) power
outlet. To reduce the risk of electric shock or damage to your equipment, do not disable the power cord grounding
feature. The grounding plug is an important safety feature.
WARNING: For your safety, be sure that the grounded power outlet you plug the power cord into is easily
accessible to the operator and located as close to the equipment as possible. To disconnect power from the
equipment, unplug the power cord from the power outlet by grasping the plug firmly. Never pull on the cord.
CAUTION: To protect your monitor, as well as your computer, connect all power cords for your computer and its
peripheral devices (such as a monitor, printer, or scanner) to a surge protection device such as a power strip with
surge protection or uninterruptible power supply (UPS). Not all power strips provide surge protection; the power
strips must be specifically labelled as having this ability. Use a power strip whose manufacturer offers a damage
replacement policy, so you can replace your equipment if surge protection fails.
CAUTION: A certified power supply cord has to be used with this equipment. The relevant national installation
and/or equipment regulations shall be considered. A certified power supply cord not lighter than ordinary
polyvinyl chloride flexible cord according to IEC 60227 (designation H05VV-F 3G 0.75mm² or H05VVH2-F2 3G
0.75mm²) shall be used. An alternative flexible cord is synthetic rubber.
Safety Precautions
■Use only a power source and connection compatible with this monitor, as indicated on the label/back
plate of the monitor.
■Be sure the total ampere rating of the products connected to the outlet does not exceed the current rating of the
electrical outlet, and the total ampere rating of the products connected to the power cord does not exceed the
rating of the power cord. Look on the power label to determine the ampere rating (Amps or A) for each device.
■ Install your monitor near a power outlet that you can easily reach. Disconnect the monitor by grasping the plug
firmly and pulling it from the outlet. Never disconnect the monitor by pulling the cord.
■ Do not allow anything to rest on the power cord. Do not walk on the cord.
■ While using VESA mount application, the AC Inlet must face to down side. Do not face any other position.
Maintenance Guidelines
To enhance the performance and extend the life of your monitor:
■ Do not open your monitor cabinet or attempt to service this product yourself. If your monitor is not operating
properly or has been dropped or damaged, contact your Lenovo authorized dealer, reseller, or service provider.
■ Adjust only those controls that are described in the operating instructions.
■ Turn your monitor off when not in use. You can substantially increase the life expectancy of the monitor by using
a screen saver program and turning off the monitor when not in use.
■ Keep your monitor in a well-ventilated area, away from excessive light, heat, or moisture.
■ Slots and openings in the cabinet are provided for ventilation. These openings must not be blocked or covered.
Never push objects of any kind into cabinet slots or other openings.
■ Unplug the monitor from the power outlet before cleaning. Do not use liquid cleaners or aerosol cleaners.
■ Do not drop the monitor or place it on an unstable surface.
■ When removing the monitor base, you must lay the monitor face down on a soft area to prevent it from getting
scratched, defaced, or broken.
Cleaning the Monitor
The monitor is a high-quality optical device that requires special care when cleaning. To clean the monitor, follow
these steps:
1. Turn off the computer and the monitor.
2. Unplug your monitor from the power outlet before cleaning.
CAUTION: Do not use benzene, thinner, ammonia, or any volatile substance to clean the monitor screen or cabinet.
These chemicals may damage the monitor. Do not use liquid or aerosol cleaners. Never use water
to clean an LCD screen.
3. Wipe the screen with a dry, soft, clean cloth. If the screen requires additional cleaning, use an antistatic screen
cleaner.
4. Dust the monitor housing. Use a damp cloth to clean the cabinet. If the cabinet requires additional cleaning, use
a clean cloth dampened with isopropyl alcohol.
5. Plug in the monitor.
6. Turn on the monitor and the computer
Chapter 1. Getting started 1-1
Getting started
This User’s Guide provides detailed operation instructions for the user. For quick instruction overview, please
see the Setup Poster for brief information.
Shipping contents
The product package should include the following items:
Information Flyer
Flat Panel Monitor
Power Cord
Monitor Stand
Monitor base
Cable clip
Notice for use
To setup your monitor, please see the illustrations below.
Note: Do not touch the monitor within the screen area. The screen area is glass and can be damaged by
rough handling or excessive pressure.
1. Place your monitor with the screen face down on a soft flat surface.
2. Align the stand assembly bracket to the monitor.
3. Insert the bracket towards monitor until it locks in place.
Note: To attach a VESA mount, please see “Detaching the monitor stand” on page 2-10.
1-2 C27-30 Flat Panel Monitor User’s Guide
Product overview
This section will provide information on adjusting monitor positions, setting user controls, and using the cable
lock slot.
Types of adjustments
Tilt
Please see the illustration below for an example of the tilt range.
User controls
Your monitor has controls on the front which are used to adjust the display.
For information on how to use these controls, please see “Adjusting your monitor image ” on
page 2-6.
Cable lock slot
Your monitor is equipped with a cable lock slot located on the rear of your monitor. Please
follow the instructions that came with the cable lock to attach it.
Chapter 1. Getting started 1-3
Setting up your monitor
This section provides information to help you set up your monitor.
Connecting and turning on your monitor
Note: Be sure to read the Safety information on page iv before carrying out this procedure.
1. Power off your computer and all attached devices, and unplug the computer power cord.
2. Connect one end of the HDMI cable to the HDMI connector on the back of the computer, and
the other end to the HDMI connector on the monitor. Lenovo recommends that customers who
require to use the HDMI input on their monitor purchase the “Lenovo HDMI to HDMI
cableOB47070”.
For more information, go to the following:
www.lenovo.com/support/monitoraccessories
1-4 C27-30 Flat Panel Monitor User’s Guide
3. Connect the analog signal cable to the D-SUB connector of the monitor and the other end on
the back of the computer.
4. Plug the monitor power cord and the computer cord into grounded electrical outlets.
Note: A certified power supply cord has to be used with this equipment. The relevant national
installation and/or equipment regulations shall be considered. A certified power supply
cord not lighter than ordinary polyvinyl chloride flexible cord according to IEC 60227
(designation H05VV-F 3G 0.75mm² or H05VVH2-F2 3G 0.75mm²) shall be used.
Alternative a flexible cord be of synthetic rubber according to IEC 60245 (designation
H05RR-F 3G 0.75mm²) shall be used.
Chapter 1. Getting started 1-5
5. Assembled Line Cleaner as shown below.
6. Power on the monitor and the computer.
7. To install the monitor driver, you must download it from Lenovo website
(http://support.lenovo.com/docs/c27_30) and follow the instructions on page 3-5.
Registering your option
Thank you for purchasing this Lenovo TM product. Please take a few moments to
register your product and provide us with information that will help Lenovo to better
serve you in the future. Your feedback is valuable to us in developing products and
services that are important to you, as well as in developing better ways to communicate
with you. Register your option on the following Web site:
http://www.lenovo.com/register
Lenovo will send you information and updates on your registered product unless you
indicate on the Web site questionnaire that you do not want to receive further
information.
Chapter 2 Adjusting and using your monitor 2-1
Adjusting and using your monitor
This section will give you information on adjusting and using your monitor.
Comfort and accessibility
Good ergonomic practice is important to get the most from your personal
computer and to avoid discomfort. Arrange your workplace and the
equipment you use to suit your individual needs and the kind of work that you
perform. In addition, use healthy work habits to maximize your performance
and comfort while using your computer.
Arranging your work area
Use a work surface of appropriate height and available working area to allow
you to work in comfort.
Organize you work area to match the way you use materials and equipment.
Keep your work area clean and clear for the materials that you typically use
and place the items that you use most frequently, such as the computer mouse
or telephone, within the easiest reach.
Equipment layout and setup play a large role in your working posture. The
following topics describe how to optimize equipment setup to achieve and
maintain good working posture.
Positioning and viewing your monitor
Position and adjust your computer monitor for comfortable viewing by
considering the following items:
● Viewing distance: Optimal viewing distances for monitors range from
approximately 510mm to 760mm (20 in to 30 in) and can vary depending on
ambient light and time of day. You can achieve different viewing distances by
repositioning your monitor or by modifying your posture or chair position.
Use a viewing distance that is most comfortable for you.
● Monitor height: Position the monitor so your head and neck are in a
comfortable and neutral (vertical, or upright) position. If your monitor does not
have height adjustments, you might have to place books or other sturdy objects
under the base of the monitor to achieve the desired height. A general
guideline is to position the monitor such that the top of the screen is at or
slightly below your eye-height when you are comfortably seated. However, be
sure to optimize your monitor height so the line of site between your eyes and
the centre of the monitor suits your preferences for visual distance and
comfortable viewing when your eye muscles are in a relaxed stated.
● Tilt : Adjust the tilt of your monitor to optimize the appearance of the
screen content and to accommodate your preferred head and neck posture.
● General location: Position your monitor to avoid glare or reflections on the
screen from overhead lighting or nearby windows.
The following are some other tips for comfortable viewing of your monitor:
● Use adequate lighting for the type of work you are performing.
● Use the monitor brightness, contrast, and image adjustment controls, if
equipped, to optimize the image on your screen to meet your visual
preferences.
● Keep your monitor screen clean so you can focus on the screen’s contents.
Any concentrated and sustained visual activity can be tiring for your eyes. Be
sure to periodically look away from your monitor screen and focus on a far
object to allow your eye muscles to relax. If you have questions on eye fatigue
or visual discomfort, consult a vision care specialist for advice.
2-2 C27-30 Flat Panel Monitor User’s Guide
Health Administration
Prolong exposure to computer screens may cause temporary visual fatigue. Factors
including working environment, working habit and posture, screen flicker and blue
light contribute to this condition. To minimize visual fatigue certain adjustments can be
made on the work stations or using suitable computer screens with features that
alleviate eye strain.
Environment
Visual fatigue is affected by the working environment. Glare reductions and
appropriate lighting situations help minimize this condition.
● Glare reduction
Glare can be reduced by
a) Changing position of any light source that is causing the glare.
b) Fitting the light sources with appropriate diffusers or lampshade.
c) Using curtains or blind on windows to minimize glare from direct sunlight.
d) Adjusting monitor position to be perpendicular to the source of light or windows.
e) Using an anti-glare screen - ThinkVision monitors have anti-glare surface treatment
that scatters light for a reflection-free work usage.
● Lighting
Adequate lighting is necessary to avoid glare and eye fatigue. Excessive or insufficient
lighting makes the display on screen harder to see. Generally, lighting level should not
exceed 750 lux and levels ranging from 300 to 500 lux are most appropriate for computer
desk work. Recommended lighting arrangement includes positioning work stations away
from direct sunlight or using overhead lighting with baffles or louvers that reduces glare.
Working Habits
Long exposures to computer screens may cause eye strain. Symptoms include
headache, burning eyes, blurred vision and discomfort. To minimize eye strain,
computer users can adjust working habits to let their eyes relax and recover.
● Break Times
Computer users should take some time away from the screen especially if working for
prolong hours. Generally, it is recommended to take short breaks (5 – 15 mins) after 1 –
2 hours of continuous computer works. Taking short and frequent breaks is more
advised than longer breaks.
● Looking at Distant Objects
Users often blink less when in front of monitor screen. To minimize eye strain and
dryness, users should rest the eye periodically by focusing on objects that are far away.
● Eye and Neck Exercises
Certain exercise reduces eye strain and prevent early onset of musculo-skeletal
disorders. It is recommended to repeat these exercises often. However, should
symptoms persists it is recommended to consult a physician.
Chapter 2 Adjusting and using your monitor 2-3
Exercises for the eye:
1. Alternate looking up and looking down while keeping the body and head upright.
2. Slowly roll your eyes to look to the left and right.
3. Roll eyes to look at objects on the upper right corner and then on lower right. Do same
thing to look at objects on the upper left and lower left.
Exercises for the neck:
1. Relax arm at the side. Bend head forward to slightly stretch the neck. Hold for 5 seconds.
2. Relax arm at the side. Turn thead to the right. Hold for 5 seconds. Then turn head to the
left.
3. Relax arm at the side. Swing head to the left. Hold for 5 seconds. Then swing head to the
right.
Working Posture
Appropriate working position helps minimize eye discomfort. Seating position and ideal
placement of monitor are essential for a comfortable working experience.
● Seating Position
Placing the monitor too far or too close may lead to eye strain. Far viewing distance causes
users to lean forward to see small texts, which strain the eyes and torso. Close viewing
distance, on the other hand, strains the eye resulting from exerting more effort to focus and
also causes the user to sit in awkward body posture (i.e. tilting the head, typing with
outstretched arms, etc.)
Recommended viewing distance between the eye and the monitor screen is 1.5 x the diagonal
of the screen. Solutions in meeting this required distance in cramped office situations include
pulling desk away from wall or divider to make room for monitor, using flat panel or
compact displays placing the monitor in the desk corner, or placing the keyboard in an
adjustable drawer to create a deeper working surface.
ThinkVision monitors are design to maximize work space (e.g. having thin profiles,
compatible for ThinkCentre Tiny back mount, practical cable management, etc).
2-4 C27-30 Flat Panel Monitor User’s Guide
● Viewing Angle
Neck fatigue and pain may result from prolong turning of the head to see objects on the monitor
screen. To minimize this, position the monitor directly in front so the head, neck and torso face
forward to the screen. It is recommended that monitor should not be more than 35 degrees to the
right or left of the head.
Monitors should also not be placed too high or too low as this contributes to awkward posture
which results to muscle fatigue.
Reduce Flicker
Monitor flickers refer to repeated changes in monitor light intensity. It is caused by several
factors including but not limited to voltage fluctuations. Reducing flicker minimizes eye strain
and headaches. ThinkVision monitors allow users to use high frequency display modes that can
effectively reduce flicker.
Chapter 2 Adjusting and using your monitor 2-5
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 have a factory setting that reduces
blue light emissions. Users can enable low blue light mode on these monitors from the
OSD settings.
1. Press to open the main OSD menu.
2. Use or to move among the icons. Select icon (Image color setting) and press
to access this function.
3. Use or move among to the Low blue light item. Press to enable or disable
Low Blue Light.
Accessibility information
Lenovo is committed to providing greater access to information and technology to
people with disabilities. With assistive technologies, users can access information in the
way most appropriate to their disability. Some of these technologies are already
provided in your operating system; others can be purchased through vendors or
accessed at:
https://lenovo.ssbbartgroup.com/lenovo/request_vpat.php
2-6 C27-30 Flat Panel Monitor User’s Guide
Adjusting your monitor image
This section describes the user control features used to adjust your monitor image.
Using the direct access controls
The direct access controls can be used when the On Screen Display (OSD) is not displayed.
Note: The direct access controls are coloured.
Table 2-1. Direct access controls
Icon Control Description
Input change Switches the video input source.
Image Setup Activates automatic image adjustment.
Brightness Direct access to Brightness adjustment.
Main menu Open OSD main menu
Low Blue Light Press and hold for 3 seconds to enable/disable
Low Blue Light.
Using the On-Screen Display (OSD) controls
The settings adjustable with the user controls are viewed through the On-Screen Display
(OSD), as shown below.
To use the controls:
1. Press to open the main OSD menu.
2. Use to access that
function. If there is a sub-menu, you can move between options using
or to move among the icons. Select an icon and press
, then press
to select that function. Use
or
or to make adjustments. Press to save.
3. Press to move backwards through the sub-menus and exit from the OSD.
4. When un-OSD, press and hold for 10 seconds to lock the OSD. This will prevent
accidental adjustments to the OSD. When un-OSD, press and hold for 10 seconds to
unlock the OSD and allow adjustments to the OSD.
5. Enables DDC/CI by default. Use OSD Exit Key, press and hold the buttons for 10
seconds to disable/enable DDC/CI function. The words " DDC/CI
Disable/DDC/CI/Enable" shows on the screen.
Chapter 2 Adjusting and using your monitor 2-7
Table 2-2. OSD functions
OSD Icon on Main
Menu Submenu Description Controls and
Adjustments
Basic image setting
Brightness Adjusts overall brightness
All input ports
Contrast Adjusts difference between light
and dark areas.
DCR
Enable dynamic contrast ratio.
● Off
● On
Display Mode
● Standard
● Game
● Web
● Movie
● Picture
Scaling Mode ● Full Screen
● Original AR
Over Drive
● Off
● Normal
● Extreme
Automatic Automatically optimizes the
image.
Only VGA input port
Clock Adjusts the number of pixels
scanned by one Horizontal sweep
Phase Adjusts the phase of the pixel
clock signal
Horizontal position Moves the image left or right.
Vertical position Moves the image up or Down
Image color setting
Preset Mode
Adjusts intensity of red, green,
and blue.
● Bluish
● Neutral
● Reddish
● sRGB
All input ports
Custom
● Red: Increases or decreases the
saturation of ‘red’ in the image.
● Green: Increases or decreases
the saturation of ‘green’ in the
image.
● Blue: Increases or decreases the
saturation of ‘blue’ in the image.
Low blue light ● Off
● On
signal input
VGA This monitor can accept video
signals through two different
connectors. Select digital among
OSD controls when you use
VGA/HDMI connector.
VGA input port
HDMI HDMI input port
2-8 C27-30 Flat Panel Monitor User’s Guide
OSD Icon on Main
Menu Submenu Description Controls and
Adjustments
Menu setting
Information
● Model Name:
● Refresh:
● Firmware
● Serial Number:
All input ports
Language
Select OSD Language.
Note: The language chosen only
affects the language of the OSD. It
has no effect on any software
running on the computer.
Menu Horizontal Changes the horizontal position of
the OSD.
Menu Vertical Changes the vertical position of
the OSD.
Transparency Choose the transparency of OSD
FreeSync ● Off
● On Only HDMI input port
OSD Timeout
Sets the length of time the OSD
will remain active after the last
time a button is pressed.
All input ports
Reset All Settings
Resets monitor to the original
factory settings.
● Cancel
● Factory Reset
All input ports
Chapter 2 Adjusting and using your monitor 2-9
Selecting a supported display mode
The display mode the monitor uses is controlled by the computer. Therefore, refer to your computer
documentation for details on how to change display modes.
The image size, position and shape might change when the display mode changes. This is normal and the image
can be readjusted using automatic image setup and the image controls.
Unlike CRT monitors, which require a high refresh rate to minimize flicker, LCD or Flat Panel technology is
inherently flicker-free.
Note: If your system has previously been used with a CRT monitor and is currently configured to a display
mode outside the range of this monitor, you may need to re-attach the CRT monitor temporarily until you have
re-configured the system; preferably to 1920x1080 at 60Hz, which is the Native Resolution Display mode.
The display modes shown below have been optimized at the factory.
Table 2-3.Factory set display modes
Addressability
Refresh rate
PAL VGA
50Hz
640x350
70Hz
640x480
60Hz
720x400
70Hz
800x600
60Hz
1024x768
60Hz
1280x768
60Hz
1280x800
60Hz
1280x1024
60Hz,72Hz
1366x768
60Hz
1440x900
60Hz, Reduced 60Hz
1600x900
60Hz
1680x1050
60Hz, Reduced 60Hz
1920x1080
60Hz, 75Hz
Understanding power management
Power management is invoked when the computer recognizes that you have not using your mouse or keyboard for a
user-definable period. There are several states as described in the table below.
For optimal performance, switch off your monitor at the end of each working day, or whenever you expect to leave it
unused for long periods during the day.
Table2-4.Power indicator
State Power Indicator Screen Restoring Operation Compliance
On Steady White Normal
Standby/
Suspend
Steady amber
Blank
Press a key or move the mouse. There may be a
slight delay reappears.
Note: Standby also occurs if there is no image
output to the monitor.
CEC
Off
Off
Off
Press power key to switch on There may be a slight
delay before the image reappears.
CEC
** Maximum power consumption with max luminance.
This document is informational only and reflects laboratory performance. Your product may perform differently,
depending on the software, components and peripherals you ordered and shall have no obligation to update such
information. Accordingly, the customer should not rely upon this information in making decisions about electrical
tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.
2-10 C27-30 Flat Panel Monitor User’s Guide
Caring for your monitor
Be sure to turn off the power before you perform any maintenance on the monitor.
Do not:
● Apply water or liquid directly to your monitor.
● Use solvents or abrasives.
● Use flammable cleaning materials to clean your monitor or any other electrical
equipment.
● Touch the screen area of your monitor with sharp or abrasive items. This
type of contact may cause permanent damage to your screen.
● Use any cleaner which contains an anti-static solution or similar additives. This
may harm the coating of the screen area.
Do:
● Lightly dampen a soft cloth with water and use this to gently wipe the covers and
the screen.
● Remove grease or finger marks with a damp cloth and a little mild detergent.
Detaching the monitor stand
After placing the monitor face down on a clean surface or soft cloth, Loosen the screws,
Remove the stand and base from the monitor.
Wall Mounting (Optional)
Refer to the instructions that come with the base mounting kit. To convert your LCD display
from a desk-mounted to a wall-mounted display, do the following:
Step 1: Verify that the Power button is turned off, and then disconnect the power cord.
Step 2: Lay the LCD display face down on a towel or blanket.
Step 3: Remove the base from the monitor, refer to "Detaching the monitor base and stand".
Step 4: Attach the mounting bracket from the VESA compatible wall mounting kit (100mm
x100mm distance), VESA Mounting Screw M4 x 10 mm.
Step 5: Attach the LCD display to the wall, following the instructions in the wall-mounting
kit. For use only with UL&GS Listed Wall Mount Bracket with minimum
weight/load: 8kg
Chapter 3 Reference information 3-1
Reference information
This section contains monitor specifications, instructions to manually install the monitor driver,
troubleshooting information, and service information.
Monitor specifications
Table 3-1. Monitor specifications
Dimensions Height
Depth
Width
444.42 mm (17.49 in.)
231.22 mm (9.10 in.)
614.11 mm (24.17 in.)
Stand
Tilt range
Range: -5°/+22°
VESA mount
Supported
(UL
&
GS approved)
100 mm (3.94 in.)
Image Viewable image size
Maximum height
Maximum width
Pixel pitch
685.8 mm (27 in.)
336.312 mm (13.24 in.)
597.888 mm (23.53 in.)
0.3114mm (0.0122 in.) (V)
Power input Supply voltage
Max supply current
100-240 VAC, 60/50 Hz
1.5A
Power consumption Max Consumption
Typical Consumption
Standby/Suspend
Off
33W
22W
0.5W
0.3W
Video input (Analog) Input signal
Horizontal addressability
Vertical addressability
Clock frequency
VGA
1920 pixels (max)
1080 lines (max)
170 MHz
Video input (Digital)
Input signal
Horizontal addressability
Vertical addressability
Clock frequency
HDMI
1920 pixels (max)
1080 lines (max)
220 MHz
Communications
VESA DDC
CI
Aspect Ratio
Size ratio
16:9
Altitude Test
Operation
40000 ft
Supported Display Modes
(VESA Standard modes
between noted ranges)
Horizontal frequency
Vertical frequency
Native Resolution
30 kHz – 85 kHz
48 Hz – 75 Hz
1920 x 1080 at 60 Hz
Temperature Operating
Storage
Shipping
0° to 40°C (32°F to 104° F)
-20° to 60°C (-4°F to 140° F)
-20° to 60°C (-4° F to 140° F)
Humidity Operating
Storage
Shipping
10% to 80%
5% to 95%
5% to 95%
3-2 C27-30 Flat Panel Monitor User’s Guide
Troubleshooting
If you have a problem setting up or using your monitor, you might be able to solve it yourself.
Before calling your dealer or Lenovo, try the suggested actions that are appropriate to your
problem.
Table3-2.Troubleshooting
Problem Suggested action Possible cause Reference
The words” Out
of Range” are
shown on the
screen, and the
power indicator is
flashing White.
The system is set
to a display mode
which is not
supported by the
monitor.
● If you are replacing an old
monitor, reconnect it and
adjust the display mode to
within the specified range for
your new monitor.
● If using a Windows system,
restart the system in safe
mode, then select a
supported display mode for
your computer.
● If these options do not work,
contact the Customer
Support Centre.
“Selecting a supported
display mode” on page
2-9
The image quality
is unacceptable.
The video signal
cable is not
connected with the
monitor or system
completely.
Be sure the signal cable is
firmly plugged into the system
and monitor.
“Connecting and turning
on your monitor” on
page 1-3
The color settings
may be incorrect.
Select another colour setting
from the OSD menu.
“Adjusting your monitor
image” on page 2-6
The automatic image
setup function was
not performed.
Perform automatic image
setup.
“Adjusting your monitor
image” on page 2-6
The power
indicator is not lit
and there is no
image.
● The monitor’s
power switch is
not switched on.
● The power cord is
loose or
disconnected.
● There is no power
at the outlet.
● Be sure the power cord is
connected properly.
● Be sure the outlet has power.
● Power on the monitor.
● Try using another power
cord.
● Try using another electrical
outlet.
“Connecting and turning
on your monitor” on
page 1-3
Chapter 3 Reference information 3-3
Table3-2.Troubleshooting (continued)
Problem Possible cause Suggested action Reference
Screen is blank
and power
indicator is steady
amber or flashing
White
The monitor is in
Standby/Suspend
mode
● Press any key on the
keyboard or move the
mouse to restore operation.
● Check the Power options
settings on your computer.
“Understanding power
management” on page
2-9
The power
indicator is White,
but there is no
image.
The video signal
cable is loose or
disconnected from
the system or
monitor.
Be sure the video cable is
connected with the system
properly.
“Connecting and turning
on your monitor” on
page 1-3
The monitor
brightness and
contrast are at the
lowest setting.
Adjust the brightness and
contrast setting on the OSD
menu.
“Adjusting your monitor
image” on page 2-6
One or more of
the pixels appear
discoloured
This is a characteristic
of the LCD
technology and is not
an LCD defect.
If there are more than five
pixels missing, contact the
Customer Support Centre.
Appendix A, “Service
and Support,” on page
A-1
● Fuzzy lines in
text or a blurry
image.
● Horizontal or
vertical lines
through the
image.
● Image setup has not
been optimized
● Your system
Display Properties
setting have not
been optimized.
Adjust the resolution settings
on your system to match the
native resolution for this
monitor: 1920x1080 at 60 Hz.
“Adjusting your monitor
image” on page 2-6
“Manual image setup”
on page 3-4
Perform automatic image
setup. If automatic image
setup does not help, perform
manual image setup.
“Selecting a supported
display mode” on page
2-9
When working in the native
resolution, you may find
additional improvements by
adjusting the Dots Per Inch
(DPI) setting on your system.
See the Advanced section
of your system’s display
properties.
The image is not
acceptable when
switching to dual
mode
It has not set the
optimum resolution
for each mode
● Use ThinkVision Duo
software to optimize the
dual screen operation
● Adjust graphic card
resolution manually
“Using the direct access
controls” on page 2-6
3-4 C27-30 Flat Panel Monitor User’s Guide
Manual image setup
If automatic image setup does not establish the image that you prefer, perform manual
image setup.
Note: Have your monitor powered on for about 15 minutes, until the monitor warms
up.
1.Press at the bottom of the monitor to open the OSD menu.
2.Use or to select and press to access.
3.Use or to select Clock and Phase adjustment.
● Clock (pixel frequency) adjusts the number of pixels scanned by one
Horizontal sweep. If the frequency is not correct, the screen shows vertical
Stripes and the picture does not have the correct width.
● Phase adjusts the phase of the pixel clock signal. With a wrong phase
adjustment, the picture has horizontal disturbances in light picture.
4.When the image no longer looks distorted, save the Clock and Phase adjustments.
5.Press to leave the OSD menu.
Chapter 3 Reference information 3-5
Manually installing the monitor driver
Below are steps for manually installing the monitor driver in Microsoft Windows 7,
Microsoft Windows 10.
Installing the monitor driver in Windows 7
To install the device driver in Microsoft® Windows 10, do the following:
1. Turn off the computer and all attached devices.
2. Ensure that the monitor is connected correctly.
3. Turn on the monitor and then turn on the computer. Allow your computer to boot into
Windows 7 operating system.
4. From the Lenovo website http://support.lenovo.com/docs/c27_30, find the
corresponding monitor driver and download it to a PC to which this monitor is connected
(such as a desktop).
5. Open the Display Properties window by right-clicking Start, Control Panel, Hardware and
Sound icon, and then click the Display icon.
6. Click the Change the display settings tab.
7. Click the Advanced Settings icon.
8. Click the Monitor tab.
9. Click the Properties button.
10. Click the Driver tab.
11. Click Update Driver, then click Browse the computer to find the driver program.
12. Select Pick from the list of device driver program on the computer.
13. Click the Have Disk button. By clicking the Browse button, browse and point to the
following path:
X:\Monitor Drivers\Windows 7
(Where X indicates "the folder in which the downloaded driver is located" (such as a
desktop)
14. Select the “C27-30.inf” file and click the Open button. Click the OK button.
15. Select Lenovo C27-30 and click Next.
16. After the installation is complete, delete all downloaded files and close all windows.
17. Restart the system. The system will automatically select the maximum refresh rate
and corresponding Colour Matching Profiles.
Note: On LCD monitors, unlike CRTs, a faster refresh rate does not improve display
quality. Lenovo recommends using either 1920 x 1080 at a refresh rate of 60 Hz, or
640 x 480 at refresh rate of 60 Hz.
3-6 C27-30 Flat Panel Monitor User’s Guide
Installing the monitor driver in Windows 10
To use the Plug and Play feature in Microsoft Windows 10, do the following:
1. Turn off the computer and all attached devices.
2. Ensure that the monitor is connected correctly.
3. Turn on the monitor and then turn on the computer. Allow your computer to boot into
Windows 10 operating system.
4. From the Lenovo website http://support.lenovo.com/docs/c27_30, find the
corresponding monitor driver and download it to a PC to which this monitor is connected
(such as a desktop).
5. On the Desktop, move mouse to bottom-left corner of screen, right-click choose Control
Panel, then double click the icon of Hardware and Sound, and then click Display.
6. Click the Change the display settings tab.
7. Click the Advanced Settings button.
8. Click the Monitor tab.
9. Click the Properties button.
10. Click the Driver tab.
11. Click Update Driver, then click Browse the computer to find the driver program.
12. Select “Let me pick from a list of device drivers on my computer”.
13. Click the Have Disk button. By clicking the Browse button, browse and point to the
following path:
X:\Monitor Drivers\Windows 10
(where X indicates "the folder in which the downloaded driver is located" (such as a
desktop)
14. Select the “C27-30.inf” file and click the Open button. Click the OK button.
15. In the new window, select Lenovo C27-30 and click Next.
16. After the installation is complete, delete all downloaded files and close all windows.
17. Restart the system. The system will automatically select the maximum refresh rate
and corresponding Color Matching Profiles.
Note: On LCD monitors, unlike CRTs, a faster refresh rate does not improve display
quality. Lenovo recommends using either 1920 x 1080 at a refresh rate of 60 Hz, or
640 x 480 at a refresh rate of 60 Hz.
Getting further help
If you still can’t solve your problem, please contact the Customer Support Center. For
more information on contacting the Customer Support Center, please see Appendix A,
“Service and Support,” on page A-1.
Chapter 3 Reference information 3-7
Service information
Customer responsibilities
The warranty does not apply to a product which has been damaged due to accident,
misuse, abuse, improper installation, usage not in accordance with product specifications
and instructions, natural or personal disaster, or unauthorized alterations, repairs or
modifications.
The following are examples of misuse or abuse and not covered by warranty:
● Images burned on to the screen of a CRT monitor. Burned image is preventable by
utilizing a moving screen saver or power management.
● Physical damage to covers, bezel, base and cables.
● Scratches or punctures on monitor screens.
Getting further help
If you still can’t solve your problem, please contact the Customer Support Center. For
more information on contacting the Customer Support Center, please see Appendix A,
“Service and Support,” on page A-1.
Service parts
The following parts are for use by Lenovo service, or Lenovo authorized dealers to support
the customer warranty. Parts are for service use only. The table below shows information for
model 62AA-KAR6-WW.
Table 3-3. List of service parts
FRU (Field
Replaceable Unit)
Part number
Description Colour
Machine Type
Model (MTM)
5D11A99744
C27-30(D20270FD0)- 27 inch FRU
Monitor (HDMI+DP)
Raven Black 62AA
5C11A99743
C27-30(D20270FD0)- HDMI cable
Raven Black
62AA
5C11A99745
C27-30(D20270FD0)-VGA cable
(1.8m, RoHS)
Raven Black 62AA
5SE1A99746
C27-30(D20270FD0)- FRU Stand
and Base
Raven Black 62AA
Appendix A Notices A-1
The following information describes the technical support that is available for your product, during
the warranty period or throughout the life of your product. Refer to the Lenovo Limited Warranty
for a full explanation of Lenovo warranty terms.
Registering your option
Register to receive product service and support updates, as well as free and discounted computer
accessories and content. Go to: http://www.lenovo.com/register
Online technical support
Online technical support is available during the lifetime of a product at:
http://www.lenovo.com/support
Product replacement assistance or exchange of defective components also is available during the
warranty period. In addition, if your option is installed in a Lenovo computer, you might be entitled
to service at your location. A Lenovo technical support representative can help you determine the
best alternative.
Telephone technical support
Installation and configuration support through the Customer Support Center will be available until
90 days after the option has been withdrawn from marketing. After that time, the support is
cancelled, or made available for a fee, at Lenovo’s discretion. Additional support is also available for
a nominal fee.
Before contacting a Lenovo technical support representative, please have the following information
available: option name and number, proof of purchase, computer manufacturer, model, serial
number and manual, the exact wording of any error message, description of the problem, and the
hardware and software configuration information for your system.
Your technical support representative might want to walk you through the problem while you are at
your computer during the call.
Telephone numbers are subject to change without notice. The most up-to-date telephone list for
Lenovo Support is always available at:
http://www.lenovo.com/support
Country or Region Telephone Number
Argentina
0800-666-0011 (Spanish, English)
Australia
1-800-041-267 (English )
Austria
0810-100-654 (local phone) (German)
Belgium
Warrant service and support: 02-339-36-11 (Dutch, French)
Bolivia
0800-10-0189 ( Spanish)
Brazil
Calls made from within the Sao Paulo region: 11-3889-8986
Calls made from outside the Sao Paulo region: 0800-701-4815
(Portuguese)
Brunei Darussalam
800-1111 (English)
Canada
1-800-565-3344 (English, French)
Chile
800-361-213(Spanish )
China
Technical Support Line: 400-100-6000 (Mandarin)
China
(Hong Kong S.A.R.)
(852) 3516-8977
(Cantonese, English, Mandarin)
China
(Macau S.A.R.)
0800-807 / (852) 3071-3559
(Cantonese, English, Mandarin)
Colombia
1-800-912-3021 (Spanish)
Costa Rica
0-800-011-1029( Spanish )
Croatia
385-1-3033-120(Croatian)
Cyprus
800-92537(Greek)
Czech Republic
800-353-637(Czech)
Denmark
Warranty service and support: 7010-5150 (Danish)
A-2 C27-30 Flat Panel Monitor User’s Guide
Country or Region Telephone Number
Dominican Republic
1-866-434-2080(Spanish )
Ecuador
1-800-426911 (OPCION 4) (Spanish )
Egypt
Primary: 0800-0000-850
Secondary:0800-0000-744
(Arabic, English)
El Salvador
800-6264 (Spanish)
Estonia
372-66-0-800
(Estonian, Russian, English)
Finland
Warranty service and support: +358-800-1-4260(Finnish)
France
Warranty service and support (hardware): 0810-631-213(French)
Germany Warranty service and support: 0800-500-4618 (toll-free)(German)
Greece Lenovo Business Partner (Greek)
Guatemala Dial 999-9190, wait for operator, and request to reach 877-404-9661 (Spanish)
Honduras Dial 800-0123(Spanish)
Hungary
+36-13-825-716
(English, Hungarian)
India
Primary: 1800-419-4666 (Tata)
Secondary: 1800-3000-8465 (Reliance)
Email: commercialts@lenovo.com
(English and Hindi)
Indonesia
1-803-442-425
62 213-002-1090 (Standard Charges Apply)
(English, Bahasa Indonesia)
Ireland Warranty service and support: 01-881-1444 (English)
Israel
Givat Shmuel Service and Center: +972-3-531-3900
(Hebrew, English)
Italy Warranty service and support: +39-800-820094 (Italian)
Japan
0120-000-817
(Japanese, English)
Kazakhstan 77-273-231-427(Standard charges Apply) (Russian , English)
Korea
080-513-0880 (Collect Call)
02-3483-2829 (Toll Call) (Korean)
Latvia 371-6707-360(Latvian, Russian, English)
Lithuania 370 5278 6602(Italian, Russian, English )
Luxembourg
ThinkServer and ThinkStation: 352-360-385-343 ThinkCentre and
ThinkPad: 352-360-385-222 (French)
Malaysia
1-800-88-0013
03-7724-8023 (Standard Charges Apply) (English)
Malta 356-21-445-566(English, Italian, Maltese Arabic)
Mexico 001-866-434-2080(Spanish)
Netherlands 020-513-3939 (Dutch)
New Zealand 0508-770-506 (English )
Nicaragua 001-800-220-2282 (Spanish)
Norway 8152-1550(Norwegian)
Panama Lenovo Customer Support Center: 001-866-434(Toll-Free)(Spanish)
Peru 0-800-50-866 (OPCION 2) (Spanish)
Philippines
1-800-8908-6454 (GLOBE subscribers)
1-800-1441-0719 (PLDT subscribers) (Tagalog, English)
Poland
Laptops and tablets branded with logo Think: 48-22-273-9777
ThinkStation and ThinkServer: 48-22-878-6999
(Polish, English )
Appendix A Notices A-3
Country or Region Telephone Number
Portugal 808-225-115 (Standard Charges Apply) (Portuguese)
Romania 4-021-224-4015(Romanian)
Russia
+7-499-705-6204
+7-495-240-8558
(Standard Charges Apply)(Russian)
Singapore
1-800-415-5529
6818-5315 (Standard Charges Apply)
(English, Mandarin, Bahasa Malaysia)
Slovakia ThinkStation and ThinkServer: 421-2-4954-5555
Slovenia 386-1-2005-60 (Slovenian)
Spain 34-917-147-833(Spanish)
Sri Lanka +9477-7357-123 (Sumathi Information systems) (English)
Sweden Warranty service and support: 077-117-1040 (Swedish)
Switzerland Warranty service and support: 0800-55-54-54 (German, French,
Italian)
Taiwan 0800-000-702 (Mandarin)
Thailand
001-800-4415-734
(+662) 787-3067 (Standard Charges Apply)(Thai, English)
Turkey 444-04-26 (Turkish)
United
Kingdom
Standard warranty support: 03705-500-
900 ( local rate) Standard warranty
support: 08705-500-900(English)
United States 1-800-426-7378 (English)
Uruguay 000-411-005-6649 (Spanish)
Venezuela 0-800-100-2011 (Spanish)
Vietnam
120-11072 (Toll Free)
84-8-4458-1042 (Standard Charges Apply) (Vietnamese, English)
Appendix B Notices B-1
Lenovo may not offer the products, services, or features discussed in this document in all
countries. Consult your local Lenovo representative for information on the products and
services currently available in your area. Any reference to a Lenovo product, program, or
service is not intended to state or imply that only that Lenovo product, program, or
service may be used. Any functionally equivalent product, program, or service that does
not infringe any Lenovo intellectual property right may be used instead.
However, it is the user 's responsibility to evaluate and verify the operation of any other
product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter
described in this document. The furnishing of this document does not give you any
license to these patents. You can send license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of
express or implied warranties in certain transactions, therefore,this statement may not
apply to you.
This information could include technical inaccuracies or typographical errors. Changes
are periodically made to the information herein; these changes will be incorporated in
new editions of the publication. Lenovo may make improvements and/or changes in the
product(s) and/or the program(s) described in this publication at any time without
notice.
The products described in this document are not intended for use in implantation or
other life support applications where malfunction may result in injury or death to
persons. The information contained in this document does not affect or change Lenovo
product specifications or warranties. Nothing in this document shall operate as an
express or implied license or indemnity under the intellectual property rights of Lenovo
or third parties. All information contained in this document was obtained in specific
environments and is presented as an illustration. The result obtained in other operating
environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes
appropriate without incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience
only and do not in any manner serve as an endorsement of those Web sites. The materials
at those Web sites are not part of the materials for this Lenovo product, and use of those
Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment.
Therefore, the result obtained in other operating environments may vary significantly.
Some measurements may have been made on development-level systems and there is no
guarantee that these measurements will be the same on generally available systems.
Furthermore, some measurements may have been estimated through extrapolation.
Actual results may vary. Users of this document should verify the applicable data for
their specific environment.
B-2 C27-30 Flat Panel Monitor User’s Guide
Recycling information
Lenovo encourages owners of information technology (IT) equipment to responsibly
recycle their equipment when it is no longer needed. Lenovo offers a variety of programs
and services to assist equipment owners in recycling their IT products. For information
on recycling Lenovo products, go to: www.lenovo.com/recycling
Collecting and recycling a disused Lenovo computer or monitor
Disposing of Lenovo computer components
Some Lenovo computer products sold in Japan may have components that contain heavy
metals or other environmental sensitive substances. To properly dispose of disused
components, such as a printed circuit board or drive, use the methods described above for
collecting and recycling a disused computer or monitor.
If you are a company employee and need to dispose of a Lenovo computer or monitor
that is the property of the company, you must do so in accordance with the Law for
Promotion of Effective Utilization of Resources. Computers and monitors are
categorized as industrial waste and should be properly disposed of by an industrial
waste disposal contractor certified by a local government. In accordance with the Law
for Promotion of Effective Utilization of Resources, Lenovo Japan provides, through its
PC Collecting and Recycling Services, for the collecting, reuse, and recycling of disused
computers and monitors. For details, visit the Lenovo Web site at
https://www.lenovo.com/jp/ja/services_warranty/recycle/pcrecycle/. Pursuant to
the Law for Promotion of Effective Utilization of Resources, the collecting and recycling
of home-used computers and monitors by the manufacturer was begun in October 1,
2003. This service is provided free of charge for home-used computers sold after
October 1, 2003. For details, visit the Lenovo Web site at:
https://www.lenovo.com/jp/ja/services_warranty/recycle/personal/.
Appendix B Notices B-3
Trademarks
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo
The Lenovo logo
ThinkCenter
ThinkPad
ThinkVision
Microsoft, Windows, and Windows NT are trademarks of the Microsoft group of
companies.
Other company, product, or service names may be trademarks or service marks of others.
Power cords and power adapters
Use only the power cords and power adapters supplied by the product manufacturer. Do
not use the ac power cord for other devices.