ViewSonic VX2451mh-LED User manual

ViewSonic®
Model No. : VS13841
IMPORTANT: Please read this User Guide to obtain important
information on installing and using your product in a safe manner, as
well as registering your product for future service. Warranty information
contained in this User Guide will describe your limited coverage from
ViewSonic Corporation, which is also found on our web site at http://
www.viewsonic.com in English, or in specific languages using the
Regional selection box in the upper right corner of our website.
“Antes de operar su equipo lea cuidadosamente las instrucciones en
este manual”
VX2451mh/
VX2451mhp-LED
LCD Display

ViewSonic VX2451mh/VX2451mhp-LED
Contents
Compliance Information.............................................................................. 1
Important Safety Instructions...................................................................... 2
Declaration of RoHS Compliance............................................................... 3
Copyright Information ................................................................................. 4
Product Registration ................................................................................... 4
Getting Started
Package Contents ...................................................................................... 5
Precautions ................................................................................................ 5
Quick Installation ........................................................................................ 6
Using the LCD Display
Setting the Timing Mode............................................................................. 7
OSD and Power Lock Settings................................................................... 7
Adjusting the Screen Image ....................................................................... 8
Main Menu Controls ................................................................................. 10
Other Information
Specifications ........................................................................................... 15
Troubleshooting........................................................................................ 16
Customer Support .................................................................................... 17
Cleaning the LCD Display ........................................................................ 18
Limited Warranty ...................................................................................... 19
Mexico Limited Warranty .......................................................................... 21

ViewSonic VX2451mh/VX2451mhp-LED 1
Compliance Information
CE Conformity for European Countries
The device complies with the EMC Directive 2004/108/EC and Low Voltage
Directive 2006/95/EC.
Following information is only for EU-member states:
The mark shown to the right is in compliance with the Waste Electrical and
Electronic Equipment Directive 2002/96/EC (WEEE).
The mark indicates the requirement NOT to dispose the equipment as unsorted
municipal waste, but use the return and collection systems according to local law.

ViewSonic VX2451mh/VX2451mhp-LED 2
Important Safety Instructions
1. Read these instructions completely before using the equipment.
2. Keep these instructions in a safe place.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this equipment near water. Warning: To reduce the risk of fire or electric shock,
do not expose this apparatus to rain or moisture.
6. Clean with a soft, dry cloth. If further cleaning is required, see “Cleaning the Display” in
this guide for further instructions.
7. Do not block any ventilation openings. Install the equipment in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other
devices (including amplifiers) that produce heat.
9. Do not attempt to circumvent the safety provisions of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wide blade and the third prong are
provided for your safety. If the plug does not fit into your outlet, consult an electrician for
replacement of the outlet.
10. Protect the power cord from being tread upon or pinched, particularly at the plug, and the
point where if emerges from the equipment. Be sure that the power outlet is located near
the equipment so that it is easily accessible.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the equipment. When a cart is used, use caution
when moving the cart/equipment combination to avoid injury from tipping
over.
13. Unplug this equipment when it will be unused for long periods of time.
14. Refer all servicing to qualified service personnel. Service is required when the unit has
been damaged in any way, such as: if the power-supply cord or plug is damaged, if liquid
is spilled onto or objects fall into the unit, if the unit is exposed to rain or moisture, or if
the unit does not operate normally or has been dropped.

ViewSonic VX2451mh/VX2451mhp-LED 3
Declaration of RoHS Compliance
This product has been designed and manufactured in compliance with Directive 2002/95/EC of
the European Parliament and the Council on restriction of the use of certain hazardous
substances in electrical and electronic equipment (RoHS Directive) and is deemed to comply
with the maximum concentration values issued by the European Technical Adaptation
Committee (TAC) as shown below:
Certain components of products as stated above are exempted under the Annex of the RoHS
Directives as noted below:
Examples of exempted components are:
1. Mercury in compact fluorescent lamps not exceeding 5 mg per lamp and in other lamps not
specifically mentioned in the Annex of RoHS Directive.
2. Lead in glass of cathode ray tubes, electronic components, fluorescent tubes, and electronic
ceramic parts (e.g. piezoelectronic devices).
3. Lead in high temperature type solders (i.e. lead-based alloys containing 85% by weight or
more lead).
4. Lead as an allotting element in steel containing up to 0.35% lead by weight, aluminium
containing up to 0.4% lead by weight and as a cooper alloy containing up to 4% lead by
weight.
Substance Proposed Maximum Concentration Actual Concentration
Lead (Pb) 0.1% < 0.1%
Mercury (Hg) 0.1% < 0.1%
Cadmium (Cd) 0.01% < 0.01%
Hexavalent Chromium (Cr6+)0.1% < 0.1%
Polybrominated biphenyls (PBB) 0.1% < 0.1%
Polybrominated diphenyl ethers (PBDE) 0.1% < 0.1%

ViewSonic VX2451mh/VX2451mhp-LED 4
Copyright Information
Copyright © ViewSonic®Corporation, 2011. All rights reserved.
Macintosh and Power Macintosh are registered trademarks of Apple Inc.
Microsoft, Windows, Windows NT, and the Windows logo are registered trademarks of
Microsoft Corporation in the United States and other countries.
ViewSonic, the three birds logo, OnView, ViewMatch, and ViewMeter are registered
trademarks of ViewSonic Corporation.
VESA is a registered trademark of the Video Electronics Standards Association. DPMS and
DDC are trademarks of VESA.
Disclaimer: ViewSonic Corporation shall not be liable for technical or editorial errors or
omissions contained herein; nor for incidental or consequential damages resulting from
furnishing this material, or the performance or use of this product.
In the interest of continuing product improvement, ViewSonic Corporation reserves the right
to change product specifications without notice. Information in this document may change
without notice.
No part of this document may be copied, reproduced, or transmitted by any means, for any
purpose without prior written permission from ViewSonic Corporation.
Product Registration
To meet your future needs, and to receive any additional product information as it becomes
available, please register your product on the Internet at: www.viewsonic.com. The ViewSonic
Wizard CD-ROM also provides an opportunity for you to print the registration form, which
you may mail or fax to ViewSonic.
Product disposal at end of product life
ViewSonic respects the environment and is committed to working and living green. Thank you
for being part of Smarter, Greener Computing. Please visit ViewSonic website to learn more.
USA & Canada: http://www.viewsonic.com/company/green/recycle-program/
Europe: http://www.viewsoniceurope.com/uk/kbase/article.php?id=639
Taiwan: http://recycle.epa.gov.tw/recycle/index2.aspx
For Your Records
Product Name:
Model Number:
Document Number:
Serial Number:
Purchase Date:
VX2451mh/VX2451mhp-LED
ViewSonic Widescreen LCD Display
VS13841
VX2451mh/VX2451mhp-LED-1_UG_ENG Rev. 1B 11-14-11
______________________________________________
______________________________________________

ViewSonic VX2451mh/VX2451mhp-LED 5
Getting Started
Congratulations on your purchase of a ViewSonic®LCD display.
Important! Save the original box and all packing material for future shipping needs.
NOTE: The word “Windows” in this user guide refers to the following Microsoft operating
systems: Windows XP, Windows Vista, and Windows 7.
Package Contents
Your LCD display package includes:
•LCDdisplay
• AC/DC power adapter
• Audio cable
• D-Sub cable
• DVI cable
• ViewSonic Wizard CD-ROM (available in some countries only)
• Quick Start Guide
NOTE: The CD includes the User Guide PDF files and INF/ICM display optimization files.
The INF file ensures compatibility with Windows operating systems, and the ICM file (Image
Color Matching) ensures accurate on-screen colors. ViewSonic recommends that you install
both the INF and ICM files.
Precautions
• Sit at least 18” from the LCD display.
•Avoid touching the screen. Skin oils are
difficult to remove.
•Never remove the rear cover. This LCD
display contains high-voltage parts. You
may be seriously injured if you touch
them.
• Avoid exposing the LCD display to direct
sunlight or another heat source. Orient the
LCD display away from direct sunlight to
reduce glare.
• Always handle the LCD display with care
when moving it.
• Place the LCD display in a well ventilated
area. Do not place anything on the LCD
display that prevents heat dissipation.
• Ensure the area around the LCD display is
clean and free of moisture.
• Do not place heavy objects on the LCD
display, video cable, or power cord.
• If smoke, an abnormal noise, or a strange
odor is present, immediately switch the
LCD display off and call your dealer or
ViewSonic. It is dangerous to continue
using the LCD display.
• Do not rub or apply pressure to the LCD
panel, as it may permanently damage the
screen.

ViewSonic VX2451mh/VX2451mhp-LED 6
Quick Installation
1. Connect AC/DC Adapter to LCD Dis-
play, and then plug in power cord to AC
outlet.
2. Connect video cable
• Make sure both the LCD display and
computer are turned OFF
• Remove rear panel covers if necessary
• Connect the video cable from the LCD
display to the computer
Macintosh users: Models older than G3
require a Macintosh adapter. Attach the
adapter to the computer and plug the video
cable into the adapter.
To order a ViewSonic®Macintosh adapter,
contact ViewSonic Customer Support.
3. Turn ON LCD display and computer
Turn ON the LCD display, then turn ON
the computer. This sequence (LCD display
before computer) is important.
NOTE: Windows users may receive a
message asking them to install the INF
file. This is on the CD.
4. Insert the ViewSonic Wizard CD into
the computer’s CD drive.
Follow the on-screen instructions. If your
computer does not have a CD-ROM drive,
please refer to Customer Support page.
• Wait for the CD-ROM to auto-start.
NOTE: If the CD-ROM does not auto-
start: double-click on the CD-ROM icon
in the Windows Explorer, then double-
click on viewsonic.exe.
• Follow the on-screen instructions.
5. Windows users: Set the timing mode
(resolution and refresh rate)
Example: 1920 x 1080 @ 60 Hz.
For instructions on changing the
resolution and refresh rate, see the
graphics card’s user guide.
Installation is complete. Enjoy your new
ViewSonic LCD display.
To be best prepared for any future
customer service needs: print this user
guide and write the serial number in “For
Your Records” on page 4. (See back of
LCD display.)
You can register your product online at the
ViewSonic website for your region. See
the Customer Support table in this guide.
The ViewSonic Wizard CD-ROM also
provides an opportunity for you to print
the registration form which you may mail
or fax to ViewSonic.
AC Outlet
Computer Power Cord
D-Sub
Audio Out
Audio In
DVI
HDMI
DC IN
Power adapter

ViewSonic VX2451mh/VX2451mhp-LED 7
Using the LCD Display
Setting the Timing Mode
Setting the timing mode is important for maximizing the quality of the screen image and
minimizing eye strain. The timing mode consists of the resolution (example 1920 x 1080) and
refresh rate (or vertical frequency; example 60 Hz). After setting the timing mode, use the
OSD (On-screen Display) controls to adjust the screen image.
For the best picture quality set your LCD display timing mode to:
VESA 1920 x 1080 @ 60Hz.
To set the Timing Mode:
1. Set the resolution: Right-click on the Windows desktop > Properties > Settings > set the
resolution.
2. Set the refresh rate: See your graphic card's user guide for instructions.
WARNING: Do not set the graphics card in your computer to exceed the maximum refresh
rate of 75Hz; doing so may result in permanent damage to your LCD display.
OSD and Power Lock Settings
•OSD Lock: Press and hold [1] and the up arrow Sfor 10 seconds. If any buttons are
pressed the message OSD Locked will display for 3 seconds.
•OSD Unlock: Press and hold [1] and the up arrow Sagain for 10 seconds.
•Power Button Lock: Press and hold [1] and the down arrow Tfor 10 seconds. If the
power button is pressed the message Power Button Locked will display for 3 seconds. With
or without this setting, after a power failure, your LCD display’s power will automatically
turn ON when power is restored.
•Power Button Unlock: Press and hold [1] and the down arrow Tagain for 10 seconds.

ViewSonic VX2451mh/VX2451mhp-LED 8
Adjusting the Screen Image
Use the buttons on the front control panel to display and adjust the OSD controls which display
on the screen. The OSD controls are explained at the top of the next page and are defined in
“Main Menu Controls” on page .
Main Menu
with OSD controls
Front Control Panel
shown below in detail
Scrolls through menu options
and adjusts the displayed
control.
Audio Adjust (T) / Brightness/
Contrast (S)
Displays the control screen for the
highlighted control.
Also toggles between two controls on
some screens.
Also a shortcut to toggle analog and
digital connection.
Power light
Blue = ON
Orange = Power Saving
Displays the Main Menu
or exits the control
screen and saves
adjustments.
Standby Power On/Off