Lenovo LT2423 User Manual

Flat Panel Monitor

LT2423wC

User's Guide

Product numbers

60A8-KAR2-WW

First Edition (May 2013)

© Copyright Lenovo 2013.
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.

© Copyr

ight Lenovo 20

13.

i

Contents

Safety information.....................................................................

iii

Chapter 1. Getting started 1-1

Shipping contents 1-1
Attaching the base and handling your monitor 1-1
Product overview 1-2

Types of adjustments 1-2
User controls 1-2
Cable lock slot 1-3

Setting up your monitor 1-3

Connecting and turning on your monitor 1-3

Registering your option....................................................................................................1-6

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Chapter 2. Adjusting and using your monitor.........................

Comfort and accessibility 2-1

Arranging your work area 2-1
Positioning and viewing your monitor 2-1
Quick tips for healthy work habits 2-2

Accessibility information 2-2

Adjusting your monitor image 2-3

Using the direct access controls 2-3

Using the On-Screen Display (OSD) controls 2-3
Selecting a supported display mode 2-5
Understanding power management 2-6
Caring for your monitor 2-7
Preparing the monitor for wall-mounting 2-8

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Chapter 3. Reference information 3-1

Monitor specifications 3-1
Troubleshooting 3-3

Manual image setup 3-4

Installing the monitor driver in Windows Vista 3-5

Installing the monitor driver in Windows 7 3-6

Installing the monitor driver in Windows 8/Windows 8.1

Service informatio 3-8

Customer responsibilities 3-8

Service parts 3-8

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2-1

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
Trademarks B-3

© Copyright Lenovo 2013.

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ii

Safty information

General Safety guidelines

Before installing this product, read the Safety Information.

íí

í

© Copyright Lenovo 2013. iii

Chapter 1. Getting started

This User’s Guide contains detailed information on the Flat Panel Monitor.
For a quick overview, please see the Setup Poster that was shipped with
your monitor.

Shipping contents

The product package should include the following items:

· Setup Poster

· Flat Panel Monitor

· Power Cord

Analog Signal Cable

·

Audio Cable

·

Attaching the base and handling your monitor

To set up 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.

Note: To attach a VESA mount, please see “Detaching the monitor stand” on page 2-8.

© Copyright Lenovo 2013. 1-1

Product overview

This section will provide information on adjusting monitor positions, setting user

controls, and using the cable lock slot.

Types of adjustments

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 2-3.

1-2 Flat Panel Monitor User’s Guide

Cable lock slot

Your monitor is equipped with a cable lock slot located on the rear of your monitor
(in the lower left corner). Please follow the instructions that came w
lock to attach it.

Setting up your monitor

This section provides information to help you set up your monitor.

ith the cable

Connecting and turning

1.Power off your computer and all attached devic
power cord.

2.Connect the analog signal cable to the video port on the back of the computer.

on your monitor

es, and unplug the computer

Chapter 1. Getting started 1-3

3.

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 0.75mm or H05VVH2-F2 3G 0.75mm ) shall be
used. Alternative a flexible cord be of synthetic rubber according to IEC 60245
(designation H05RR-F 3G 0.75mm ) shall be used.

4. 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.

2

2 2

1-4 Flat Panel Monitor User’s Guide

5.Connect the audio cable to the video port on the back of the computer.

6.

Power on the monitor and the computer.

Install the monitor driver, download the driver of the corresponding monitor model

7.

from the Lenovo Website

http://support.lenovo.com/LT2423wC,

and then click on

the driver and install it following the on-screen instructions.

Chapter

1. Getting started 1-5

8.

To optimize your monitor image, if using the analog cable, press the Automatic Image
Setup key. Automatic image setup requires that the monitor is warmed up for at least 15
minutes.

Note: If automatic image setup does not establish the image that you prefer, perform

manual image setup. See “Manual image setup” on page 3-4.

Registering your option

Thank you for purchasing this Lenovo® 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 followingWeb 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.

1-6 Flat Panel Monitor User’s Guide

Chapter 2. 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.

For more detailed information on any of these topics, visit the Healthy Computing
Web site at: http://www.ibm.com/pc/ww/healthycomputing

Arranging your work area

Use a work surface of appropriate height and available working area to allow you
to work in comfort.

Organize your 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
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 center the
monitor suits yourpreferences for visual distance and comfortable viewing
when your eye muscles are in a relaxed state.

general guideline

© Copyright Lenovo 2013.

2-1

· 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.

Quick tips for healthy work habits

The following information is a summary of some important factors to consider to
help you remain comfortable and productive while you use your computer.

· Good posture starts with equipment setup: The layout of your work area and
the setup of your computer equipment have a large effect on your posture while
using your computer. Be sure to optimize the position and orientation of your
equipment by following the tips outlined in “Arranging your work area” on page 2-1
so you can maintain a comfortable and productive posture. Also, be sure to use the
adjustment capabilities of your computer components and office furniture to best
suit your preferences now and as your preferences change over time.

· Minor changes in posture can help avoid discomfort: The longer you sit and
work with your computer, the more important it is to observe your working
posture. Avoid assuming any one posture for an extended period of time.
Periodically make minor modifications in your posture to help deter any
discomforts that might arise. Make use of any adjustments that your office
furniture or equipment provide to accommodate changes in posture

· Short, periodic breaks help ensure healthy computing: Because computing is
primarily a static activity, it is particularly important to take short breaks from
your work. Periodically, stand up from your work area, stretch, walk for a drink of
water, or otherwise take a short break from using your computer. A short break
from work gives your body a welcome change in posture and helps to ensure you
remain comfortable and productive while you do work.

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://www-03.ibm.com/research/accessibility/requests/accvpat.nsf/lenovo-bidx?

OpenForm

2-2 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.

Table 2-1. Direct access controls

IconControlDescription

Image SetupActivates automatic image adjustment.

BrightnessDirect access to Brightness adjustment.

Volume Adjust the volume.

To use other direct access controls:

1.Press and hold
adjustments to the OSD. Press and hold for 10 seconds to unlock the OSD and
allow adjustments to the OSD.

2.Enables DDC/CI by default. Use OSD Exit Key, Press and hold the
for 10 seconds to disable / enable DDC/CI function. The words " DDC/CI
Disable" or “DDC/CI Enable” will be displayed.

for 10 seconds to lock the OSD. This will prevent accidental

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.

button

Brightness/Contrast

To use the controls:

1.Press

2.Use or to move among the icons. Select an icon and press to access that

3.Press

to open the main OSD menu.

function. If there is a sub-menu, you can move between options using
then press
save.

to select that function. Use or to make adjustments. Press to

to move backwards through the sub-menus and exit from the OSD.

Chapter 2. Adjusting and using your monitor 2-3

or ,

Table 2-2. OSD functions

OSD Icon SubmenuDescriptionControls and Controls

on Main Adjustments and

Menu (Analog) Adjustments

(Digital)

Same as

Analog

Brightness-

/Contrast

Brightness

Contrast

Adjusts ove

Adjust

rall brightness

s difference between light and dark areas

This function can improve your video input contrast

Dynamic

ration automatically.

Contrast Ratio

Image

Position

Horiz

ontal Position

Vertical Position

Moves the image left or right

Moves the image up or down.

.

Controls

Locked not
required for

digital input

Automatically optimizes the image.

Image

Setup

Image /

Audio

Properties

Automatic

Manual

Co

lor

Preset mode

Custom

Manually optimizes the image. See "Menual mage setup" page 3-4.

.

Clock

Adjusts in

Reddish sRGB

.

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.

.

Save: Saves the custom color choices.

.

Phase . Save

tensity of red, green, and blue.

. . . .

* Neutral Bluish

Same as

Anal

This monitor can accept video signals through two different connectors.
Most desktop computers use a D-SUB connector. Select digital among

Options

Input Signal

Scaling

Volume

Audio input

Information

OSD Controls when you use HDMI connector.

.

Selects D-SUB (Analog)

.

Selects HDMI

Expends ima

.

Off (Origi

.

On (Full): Expends image size to full screen.

ge size to full screen.

nal AR): same Aspect Ratio with input signal.

Adjust the volume.

Audio input select:

.

Line in

.

HDMI

Shows resolution, refresh rate, and product details. Note: This screen
does not allow any changes to the settings.

Same as

Analog

This section lists the languages supported by your monitor.

Menu Language

Note: The l
has no effect on any software running on the computer.

anguage chosen only affects the language of the OSD. It

* Note: Brightness and Contrast can not be adjusted in sRGB mode.

2-4 Flat Panel Monitor User’s Guide

og

Table 2-2. OSD functions (continued)

OSD Icon on SubmenuDescri
Main Menu Adjustments Adjustments

Options

Menu Position

DefaultReturns the menu position to the default settings.

Custom

Factory Default

Accessibility

ptionControls and Controls and

(Analog) (Digital)

Adjusts menu locat

· Horizontal: Changes the horizontal position of the OSD.

· Vertical: Changes the vertical position of the OSD.

· Save

· Cancel

· Reset
Resets monitor to the original factory settings.

Change button repeat rate and menu time-out settings.

Button repeat rate:

or

Select

· Off

· Default

· Slow

Menu time out: Sets the length of time the OSD will
remain active after the last time a button is pressed.

Exit the main menuSame as Analog

ion on the screen.

to change.

Same as Analog

Exit

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 1920 x 1080 at 60 Hz, which is the Native Resolution
Display mode.

Chapter 2. Adjusting and using your monitor 2-5

The display modes shown below have been optimized at the factory.

Table 20-3. Factory set display modes

Addressability

640 x 480

720 x 400

800 x 600

832 x 624

1024 x 768

1152 x 864

1280 x 1024

1366 x 768

1440 x 900

1600 x 900

1680 x 1050

1920 x 1080

Refresh rate

60 Hz, 72 Hz, 75 Hz

70 Hz

56 Hz, 60 Hz, 72 Hz, 75 Hz

75 Hz

60 Hz, 70 Hz, 75 Hz

75 Hz

60 Hz, 70 Hz, 75 Hz

60 Hz

60 Hz

60 Hz, 75 Hz

60 Hz

60 Hz

Understanding power management

Power management is invoked when the computer recognizes that you have not used
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.

2-6 Flat Panel Monitor User’s Guide

Table 2-4. Power indicator

StatePower IndicatorScreenRestoring OperationCompliance

OnSteady greenNormal

Standby/S

OffOffBlank

uspendSteady orange Blank

Press a key or move the

mouse
There may be a slight

delay before the image

reappears.

Note: Standby also
occurs if there is no image
output to the monitor.

Press the power button

There may be a slight

delay before the image

reappears.

ENERGY STAR

ENERGY STAR

Caring for your monitor

Be sure to turn off the power before you perform any maintenance on the monitor.

Do not:

· App

ly 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.

Chapter 2. Adjusting and using your monitor 2-7

Preparing the monitor for wall-mounting

WARNING: To
that the wall-mounting fixture is adequately installed and secured before attaching the
monitor. Refer to the instructions supplied with the wall-mounting fixture and check
that it is capable of supporting the monitor.

1.Disconnect the power cable and any other cables from the monitor.

2.Place the monitor face down on a flat, protected surface.

3.Remove the monitor base from stand.

4.Remove the three

5.Four thre

or other mounting fixture to the back of the monitor.

reduce the risk of personal injury or of damage to the eq

screws in the monitor stand. Lift the monitor stand off the monitor.

aded holes are exposed. These holes are for screws to a

uipment, check

ttach the swing arm

6.Follow the instructions included with the mounting fixture to ensure that the
monitor is safely attached.

7.Attach a swing arm or other mounting fixture.

NOTE: For use only with UL(expand UL) Listed Wall Mount Bracket with minimum

weight/load bearing capacity of

2-8 Flat Panel Monitor User’s Guide

3.7

kg.

Chapter 3. Reference information

This section contains monitor specfications, instructions to manually install the
monitor driver, troubleshooting information, and service information.

Monitor specifications

Table 3-1. Monitor specfications for type-model 60A8-KAR2-WW

Dimensions

Panel

Stand

VESA mount Supported 100 mm(3.94 in)

Image Viewable image size 609.7 mm(24 in.)
Maximum height 298.89 mm(11.77 in.)
Maximum width 531.36 mm(20.92 in.)
Pixel pitch 0.276 mm(0.0109 in.) (V)

Power input Supply voltage 100-240 V~, 50/60 Hz
Max supply current 1.5 A

Power consumption
Note: Power consumption
figures are for the monitor
andthe power supply
combned.

Video input(Analog) Input signal Analog Direct Drive,
75 ohm 0.7 V
Horizontal addressability 1920 pixels (max)
Vertical addressability 1080 lines (max)
Clock frequency 205 MHz

Height 414.3 mm

Depth 216.7 mm

Width 567.1 mm

Size 24 in.

Backlingt LED

Aspect Ratio 16:9

Tilt range Range: 5º, +22º

Max Consumption < 31 W

Typical Consumption < 21 W
Standby/Suspend < 0.5 W
Off < 0.5 W

© Copyright Lenovo 2013.

3-1

Table 3-1. Monitor specfications for type-model 60A8-KAR2-WW(continued)

Communic atons VESA DDC CI

HDMI input Input signal TMDS
Horizontal addressability 1920 pixels (max)
Vertical addressability 1080 lines (max）
　　　　　　　　　　　　　　　　　　　　　　　　　　Clock frequency 205 MHz

Supported Display Modes
(VESA Standard modes
between noted ranges)

Temperature Operating 0º to 45ºC (32º to 104º F)
Storage -20º to 60ºC (-4º to 140º F)
Shpping -20º to 60ºC (-4º to 140º F)

Humidity　　　　　　　　　　　　　　　　　　Operating 10% to 90%
Storage 10% to 90%
Shipping 10% to 90%

Horizontal frequency VGA: 30 kHz - 81 kHz

Vertical frequency 50 Hz - 75 Hz

Native Resolution 1920 x 1080 at 60 H

3-2 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.

Table 3-2. Troubleshooting

Problem Possible cause Suggested action Reference

The words“Out
of Range” are
shown on the
screen, and the
power indicator
is flashing
green

The image
quality is
unacceptable.

The power
indicator is not
lit and there is
no image.

The system is set to a
display mode which is
not supported by the
monitor.

The video signal cable
is not conneced with
the monitor or system
completely.

The color settings may
be incorrect.

The automatic image
setup function was not
performed.

The monitors power
switch is not switched
on. The power cord is
loose or disconnected.
There is no power at
the outlet.

• 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 Support Center.

Be sure the signal cable is firmly
plugged into the system and monitor.

Select another color setting from the
OSD menu.

Perform autormatic image setup.

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.

“Selecting a
supported
display
mode” on
page 2-5

“Connecting
and turning
on your
monitor” on
page 1-3

“Adjusting
your monitor
image” on
page 2-3

“Adjusting
your monitor
image” on
page 2-3

“Connecting
and turning
on your
monitor” on
page 1-3

Chapter 3. Reference information 3-3

Table 3-2. Troubleshooting (continued)

Problem Possible cause Suggested action Reference

Screen is
blank and
power
indicator is
steady amber
or flashing
green.

The power
indicator is
green, but
there is no
image.

One or more

of the pxels
appear
discolored.

• Fuzzy lines

in text or a
blurryimage.

• Horizontalor

vertical
lines
through the
image.

The monitor is in
Standby/Suspend
mode.

The video signal cable
is loose or
disconnected from the
system or monitor.

The monitor brightness
and contrast are at the
lowest setting.

This is a characteristic

of the LCD technology
and is not an LCD

defect.

• Image setup has no
tbeen optimized

• Your system
Display Properties

setting have not

been optimized.

• Press any key on the

keyboard or move the mouse
to restore operation.

• Check the Power Options

settings on your computer.

Be sure the video cable is
connected with the system
properly.

Adjust the brightness and

contrast setting on the OSD

menu.

If there are than five pixels
missing, contact the Lenovo

Support Center.

Adjust the resolution settings on
your system to match the native
resolution for this monitor.

1920 x 1080 at 60 Hz.

Perform automatic image setup.

If autormatic image setup does
not help, perform manual image
setup.

When working in the native
resolution, you may find
additional improvements by

adjusting the Dots Per Inch
(DPI) setting on your system

“Understanding power
management” on
page 2-6

“Connecting and

turming on your
monitor” on
page 1-3

“Adjusting your
monitor image”
on page 2-3

Appendix A,”Service
and Support,” on
page A-1

‘Adjusting your monitor
image” on page 2-3

“Manual image setup”

“Selecting a supported
display mode” on
page 2-5

See the Advanced
section of your systems
display properties.

Manual image setup

If autormatic 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

warma up.

1. Press

2. Use

3-4 Flat Panel Monitor User’s Guide

at the bottom of the monitor to open the OSD menu.

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 thr pixel clock signal. With a wrong phase adjustment,
the picture has horizontal disturbances in light picture.

4. When the image no longer looks distored, save the Clock and Phase adjustments.

5. Press to leave the OSD menu.

Installing the monitor driver in Windows Vista

To install the monitor driver in Microsoft® Windows Vista, 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 the system unit. Allow the system to boot into
Windows Vista operating system.

4.

Find the driver of the corresponding monitor model from Lenovo’s website:

http://support.lenovo.com/LT2423wC,

this monitor for temporary storage (as shown in the figure on the desktop).

Click Start Control Panel, and then click the Hardware and Sound icon

5.
Click the Personalization icon.

6.
Click the Display Settings icon.

7.
Click the Advanced Settings button.

8.

9.

Click the Monitor tab.

10.

Click the Properties button.

If the " Windows needs your permission to continue" window appears, click

11.
on Continue button. Then click the Driver tab.

Open the “Update Driver Software-Generic PnP Monitor” window by

12.

clicking on Update Driver. and then click the “Browse my computer for
driver software” button.
Select “Let me pick from a list of device drivers on my computer”.

13.

14.

Click the “Install from the disk” button, click on the “Browse” button, and then
navigate to the following directory: X \ Monitor Drivers \ Windows Vista
(Here, X stands for “the folder in which the downloaded driver locates” (such as

desktop)

Select the "

15.

Select

16.

17.

After the installation is complete, delete the downloaded program files, and close all

LT24 23wC.inf

“Lenovo LT2423wC”

" file and click the Open button. Click the OK button.

in the new window and then click “Next”.

the windows.

18.

Restart the system.

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.

and download it to the host connected to

Chapter 3. Reference information 3-5

Installing the monitor driver in Windows 7

To install the device driver in Microsoft® Windows 7, 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 the system unit. Allow the system to boot into
Windows

4.

Find the driver of the corresponding monitor model from Lenovo’s website:

http://support.lenovo.com/LT2423wC,

this monitor for temporary storage (as shown in the figure on the desktop).

Click Start Control Panel, and then click the Hardware and Sound icon

5.
Click the Personalization icon.

6.
Click the Display Settings icon.

7.
Click the Advanced Settings button.

8.

9.

Click the Monitor tab.

10.

Click the Properties button.
If the " Windows needs your permission to continue" window appears, click

11.
on Continue button. Then click the Driver tab.

Open the “Update Driver Software-Generic PnP Monitor” window by

12.

clicking on Update Driver. and then click the “Browse my computer for
driver software” button.
Select “Let me pick from a list of device drivers on my computer”.

13.

14.

Click the “Install from the disk” button, click on the “Browse” button, and then
navigate to the following directory: X \ Monitor Drivers \ Windows
(Here, X stands for “the folder in which the downloaded driver locates” (such as

desktop)

Select the "

15.

Select

16.

17.

After the installation is complete, delete the downloaded program files, and close all
the windows.

18.

Restart the system.

7

operating system.

LT24 23wC.inf

" file and click the Open button. Click the OK button.

“Lenovo LT2423wC”

and download it to the host connected to

7

in the new window and then click “Next”.

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

3-6 Flat Panel Monitor User’s Guide

Installing the monitor driver in Windows 8/Windows 8.1

To use the Plug and Play feature in Microsoft Windows 8/Windows 8.1, 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 the system unit. Allow your computer to start the
Windows 8/Windows 8.1 operating system.

4.

Find the driver of the corresponding monitor model from Lenovo’s website:
http://support.lenovo.com/LT2423wC, and download it to the host connected to this
monitor for temporary storage (as shown in the figure on the desktop).

Open the Display Properties window by clicking Start , right-click, choose All

5.
Application, inter Control Panel and Hardware and Sound icon. and then clicking t
he Display icon.

Click the Change the display settings tab.

6.
Click the Advanced settings icon.

7.
Click the Monitor tab.

8.
Click the Properties button.

9.

10.

Click the Drivers tab.

11.

Click Upgrade Device, then click Browse the computer to find the driver program.

12.

Select “Pick from the list of device driver program on the computer.

Click the “Install from the disk” button, click on the “Browse” button, and then

13.

navigate to the following directory: X \ Monitor Drivers \ Windows
(Note: The win 8.1 system here should be Windows 8.1)
(Here, X stands for “the folder in which the downloaded driver locates” (such as

desktop)

Select the "LT2423wC.inf" file and click the Open button. Click on the OK button.

14.

Select “Lenovo LT2423wC” in the new window and then click “Next”.

15.

After the installation is complete, delete the downloaded program files, and close all

16.

the windows.

Restart the system. The system will automatically select the maximum refresh rate

17.

and corresponding color matching profiles.

8

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.

Chapter 3. Reference information 3-7

Getting further help

If you sti ll c an’t s olve your probl em , please contac t the Lenovo Supp or t Center. For
more inf or mation on conta cting the Custo me r Support Cente r, please see Appen dix
A, “Serv ic e and Support,” o n page A-1.

Service information

Product n umber s
The prod uct number for your moni tor is locate d on the back of the dis play beze l as

shown be low.

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 onto 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.

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 60A8-KAR2-WW.

Table 3-3. List of service parts

FRU (Field
Replaceable Unit)
Part number

03T8466 Monitor_LT2423wC Raven Black 60A8-KAR2-WW
03T8449 Analog cable Raven Black 60A8-KAR2-WW

03T8468 Audio cable Raven Black 60A8-KAR2-WW

03T8467 Stand & Base Raven Black 60A8-KAR2-WW

Description Color

Machine Type
Model(MTM)

3-8 Flat Panel Monitor User’s Guide

Appendix A. Service and Support

The following information de sc ri be s th e te ch ni ca l su pp ort that is available for

your product, during the warra nt y pe ri od o r th ro ug ho ut t he l ife of your product.

Refer to the Lenovo Limited Warr an ty f or a f ul l ex pl an at io n of Lenovo warranty terms.

Registering your option

Register to receive product se rv ic e an d su pp or t up da te s, a s well as free and
discounted computer access or ie s an d co nt en t. G o to :
http://www.lenovo.com/register

Online technical support

Online technical support is av ai la bl e du ri ng t he l if et im e of a product at:
http://www.lenovo.com/support

Product replacement assist an ce o r ex ch an ge o f de fe ct iv e components also is available
during the warranty period. In a dd it io n, i f yo ur o pt io n is i ns talled in a Lenovo
computer, y ou m ig ht b e en ti tl ed t o se rv ic e at your location. A Leno vo technical
support representative can h el p yo u de te rm in e th e be st a lt ernative.

Telephone technical support

Installation and configura ti on s up po rt t hr ou gh t he C us tomer Support Center will be
available until 90 days after th e op ti on h as b ee n wi th dr aw n fr om marketing. After that
time, the support is cancelled , or m ad e av ai la bl e fo r a fe e, a t Le novo’s di scretion.
Additional support is also ava il ab le f or a n om in al f ee .

Before contacting a Lenovo tec hn ic al s up po rt r ep re se nt ative, please have the
following information avai la bl e: o pt io n na me a nd n um be r, proof of purchase, computer
manufacturer, m od el , se ri al n um be r an d manual, the exact wording of any error
message, description of the pr ob le m, a nd t he h ar dw ar e an d so ftware configuration
information for your system.

Your technical support represe nt at iv e mi gh t wa nt t o wa lk y ou t hrough the problem
while you are at your computer dur in g th e ca ll .
Tele phone numbers are subject to change without notice. The most up-to-date
telephone list for Lenovo Supp or t is a lw ay s av ai la bl e at :
http://www.lenovo.com/support/phone

© Copyright Lenovo 2013.

A-1

Date and time Update to be
Visible on the Website

17-May-2012 1000 GMT +4:00 RUSSIA

30-Jul-2012 0900 GMT +9:00 JAPAN

12-Sep-12 0900 GMT +9:00

30-Nov-12 0700 GMT -6:00 Costa Rica

30-Nov-12 0900 GMT -4:00

30-Nov-12 0700 GMT -6:00 El Salvador 800-6264
30-Nov-12 0700 GMT -6:00 Guatemala 1800-624-0051

30-Nov-12 0700 GMT -6:00 Honduras

30-Nov-12 0800 GMT -5:00 Panama

3-Dec-12 0800 GMT -5:00 ECUADOR 1-800-426911 OPCION 4

3-Dec-12 0800 GMT -6:00 ME

Country or
Regions

SOUTH
KOREA

Dominican
Republic

XICO 001-866-434-2080

Language Old Telephone Number(s) New Telephone Number(s) Hours of Operation

Russian,

Japanese,
English

Korean,
English

Spanish,

English

8 800 100 7888

0120-20-5550, 0570-064-600
For International: +81-46-266­4716

1588-6782

0-800-011-1029

1-866-434-2080

Tegucigalpa: 232­Pedro Sula: 552-2234

206-6047
001-866-434-2080 (Lenovo
Customer Support Center- toll
free)

4222 San

8-800-555-0317

0120-000-817

080-513-0880 (Toll Free)
0234834817 (Standard
Charges Apply)

Dial 0-800-011-4114, then
dial 877-404-9661

877-396-6150

800-6037
Dial 999-9190, then dial

Dial 800-0123, then dial 877­404-9661

001-800-507-2694

(Andinat

el) Dial 1-999-119;
then dial 877-404-9661
(Pacifictel) 1-800-225-528;
then dial 877-404-9661
(Pacifictel Spanish) 1-800­999-119; then dial 877-404­9661

01800 0834916

10 am - 7 pm Monday - Saturday
9AM - 6PM

Monday - Sunday (Exception : Third
Sunday of the month
(due to maintenance activities) and
December 30th and 31st and January
1st, 2nd, and 3rd)

9AM - 6PM Monday - Friday
9AM - 1PM Saturday

7 am - 9 pm Monday - Sunday

9 am - 11 pm Monday - Sunday

7 am - 9 pm Monday - Sunday
7 am - 9 pm Monday - Sunday

7 am - 9 pm Monday - Sunday

8 AM - 10 PM Monday - Sunday

8 AM - 10 PM Monday - Sunday

8 AM - 10 PM Monday - Sunday

Applicab
le to IWS

Yes

Flat Panel Monitor User’s Guide

A-2

Date and time Update to be
Visible on the Website

3-Dec-12 0900 GMT -3:00 PARAGUAY
3-Dec-12 1000 GMT -2:00 000-411-005-6649

Country or
Regions

URUGUAY

Language Old Telephone Number(s) New Telephone Number(s) Hours of Operation

Spanish,

English

009-800-52-10026

0098004410084 or 009-800-

000 411 0026332

Applicab
le to IWS

9 am - 11 pm Monday - Sunday
10 am - 12 pm Monday - Sunday

5-Dec-12 0900 GMT +8:00

5-Dec-12 0900 GMT +8:00 Macau Service Center: 2871-5399

5-Dec-12 0800 GMT -3:00 CHILE 800-361-213
5-Dec-12 0800 GMT -5:00 PERU
5-Dec-12 0830 GMT -4:30
10-Dec-12 0900 GMT -4:00 BOLIVIA 0800-10-0189

10-Dec-12 0800 GMT -5:00 COLOM

12-Dec-12 1000 GMT -3:00

HONG
KONG

Cantonese,

Mandarin,

English

VENEZUEL

Spanish,

English

BIA 1-800-912-3021

ARGENTIN

ad (Technical enquiry

ThinkP
hotline):
0800-839 (Macau) Th

(Macau) ThinkCentre,
ThinkStation and ThinkServer:
0800-336 (Macau)

0-800-50-866 OPCION 2

800-100-2011

0-

0800-666-0011

inkPad

(852) 3071-3561

0800 807

1230 020 0173 or 800530008

0800-77-503

08001101111

800-10-0982

01800 5182433 (Toll Free)
3207635 (Standard Charges
Apply)

0800 2660570

- 8 PM Mo

9 AM
9AM - 1 PM Saturday

9 AM - 8 PM Monday - Friday
9AM - 1 PM Saturday

8 AM - 10 PM Monday - Sunday
8 A

M - 10 PM Monday - Sunday
8:30 am - 10:30 pm Monday - Sunday
9 am - 11 pm Monday - Sunday

8 AM - 10 PM Monday - Sunday

10 am - 12 pm Monday - Sunday

nday - Friday

Yes

Appendix A. Service and Support A-3

Date and time Update to be
Visible on the Website

01-Sep-12 0000 GMT +10:00 Australia

01-Sep-12 0000 GMT +10:00 New Zealand

14-Sep-12 0830 GMT +7:00 VIETNAM

Country or
Regions

Language Old Telephone Number(s) Hours of Operation

131-426 Think Branded Products

English

Vietnamese,
English

1300-880-917 ThinkServer
0800-733-222 Think Branded

For Northern Area and Hanoi City:
[phone]/[phone]
For Southern Area and Ho Chi
Minh City:
[phone]/ [phone]

New Telephone
Number(s)

1800041267

0508 770 506

12011072

24 hours/day 7 days/week

24 hours/day 7 days/week

8:30 AM - 5:30 PM Monday ­Friday

Applic
able to
IWS

28-Sep-12 0830 GMT +8:00 PHILIPPINES

12-Oct-12 0800 GMT +8:00 SINGAPORE

26-Oct-12 0900 GMT +7:00 THAILAND Thai, English

9-Nov-12 0900 GMT +7:00 INDONESIA

14-Nov-12 0900 GMT +8:00 BRUNEI

14-Nov-12 0900 GMT +8:00 MALAYSIA

30-Nov-12 0000 GMT -4:00 Antigua
30-Nov-12 0000 GMT -4:00 Aruba New

Flat Panel Monitor User’s Guide

A-4

Tagalog,
English

English,
Mandarin,
Bahasa
Malaysia

Bahasa
Indonesia,
English

Bahasa
Malaysian,
English

Bahasa
Malaysia,
English

English

1800-1601-0033 (Local number
only)
[phone] (DID)

800 6011 343 (Local number only)
[phone] (DID)

1-800-060-066(Local number only)
66 2273 4088+603 8315 6857
(DID)
[phone]-803-606­282
(Local number only) +603 8315
6859 (DID)

801-1041

1800-88-1889 (Local number only)
[phone] (DID)

New

180089086454 (Domestic
Toll Free) 180014410719
(International Toll Free)

18004155529

0018004415734

001803442425

Dial 800-

1111, then dial

8662735446

1800880013

855-882-4402

855-882-4402

8:30 AM - 5 PM Monday ­Friday

Yes

8AM - 6:30PM Monday ­Friday

9 AM -6 PM Monday - Friday

9 AM -6 PM Monday - Friday

9 AM -6 PM Monday - Friday

9 AM -6 PM Monday - Friday

24 hours a day 7 days a week
24 hours a day 7 days a week

Date and time Update to be
Visible on the Website

30-Nov-12 0000 GMT -5:00 Bahamas
30-Nov-12 0000 GMT -4:00 Barbados New
30-Nov-12 0000 GMT -4:00 Bermuda 1-800 426 7378

30-Nov-12 0000 GMT -4:00

30-Nov-12 0000 GMT -5:00
30-Nov-12 0000 GMT -4:00 Curacao New
30-Nov-12 0000 GMT -4:00 Grenada New
30-Nov-12 0000 GMT -4:00 Guyana New
30-Nov-12 0000 GMT -5:00 Jamaica 1-800 426 7378
30-Nov-12 0000 GMT -4:00 Montserrat New
30-Nov-12 0700 GMT -6:00 Nicaragua
30-Nov-12 0000 GMT -4:00 Puerto Rico
30-Nov-12 0000 GMT -4:00 St Kitts New
30-Nov-12 0000 GMT -4:00 St Lucia New
30-Nov-12 0000 GMT -4:00
30-Nov-12 0000 GMT -4:00 St Vincent New
30-Nov-12 0000 GMT -3:00 Suriname New
30-Nov-12 0000 GMT -4:00
30-Nov-12 0000 GMT -4:00
30-Nov-12 0000 GMT -5:00 CANADA English, French 1-800-565-3344
30-Nov-12 0000 GMT -5:00

17-Dec-12 0800 GMT -2:00 BRAZIL Portuguese

Country or
Regions

British Virgin
Islands
Cayman

ST

Trinidad and
US Virgin

UNITED

Language Old Telephone Number(s)

New

English

New

New

Spanish,

English

English 1-800-426-7378

001-800-220­New

New

New
New

Calls made from within the Sao
Paulo region
(11) 3889-8986
Calls made from outside the Sao
Paulo region
0800-701-4815

1830

New Telephone
Number(s)

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

001-800226-0334

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

855-882-4402

1-8666269587

855-882-4402

8882523099

855-882-4402

0800 885 0500 (Toll
Free) (11) 3140-0500
(Standard Charges
Apply)

Hours of Operation

24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week

24 hours a day 7 days a week

24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
7 am - 9 pm Monday - Sunday
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week
24 hours a day 7 days a week

8 AM - 8 PM Monday - Friday
8 AM - 5 PM Saturday

Applic
able to
IWS

Yes

Appendix A. Service and Support A-5

Appendix B. Notices

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.

© Copyright Lenovo 2013.

B-1

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.

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:
http://www.lenovo.com/lenovo/environment/recycling

B-2 Flat Panel Monitor User’s Guide

Collecting and recycling a disused Lenovo computer or monitor

If you are a company employee and need to dispose of a Lenovo computer or monitor
that is th
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
www.ibm.com/jp/pc/service/recycle/pcrecycle/
Effective
computers and monitors by the manufacturer was begun on 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 www.ibm.com/jp/pc/service/recycle/personal/

Disposing of

Some Lenovo computer products sold in Japan may have components that contain
heavy me
disused components, such as a printed circuit board or drive, use the methods
described above for collecting and recycling a disused computer or monitor.

e property of the company, you must do so in accordance with the Law for

. Pursuant to the Law for Promotion of

Utilization of Resources, the collecting and recycling of home-used

Lenovo computer components

tals or other environmental sensitive substances. To properly dispose of

Trademarks

The following terms are trademarks of Lenovo in the United States, other countries, or
both:

Lenovo
The Lenovo logo
ThinkCentre
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.

Appendix B. Notices B-3

Turkish statement of compliance

The Lenovo product meets the requirements of the Republic of Turkey
Directive on the Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment (EEE).

Türkiye EEE Yönetmeliğine Uygunluk Beyanı

Bu Lenovo ürünü, T.C. Çevre ve Orman Bakanlığı'nın “Elektrik ve Elektronik
Eşyalarda Bazı Zararlı Maddelerin Kullanımının Sınırlandırılmasına Dair Yönetmelik
(EEE)” direktiflerine uygundur.

EEE Yönetmeliğine Uygundur.

Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other
countries, or both.

Ukraine RoHS

Цим пі дтверд жує мо , що продукці я Ле ново відп овіда є вимогам
норм атив них акт ів Укр аї ни, які о бмеж ують вміст небезпечних
реч овин

© Copyright Lenovo 2013.

C-1