ViewSonic VTMS2431 User Manual

ViewSonic

VTMS2431

LCD TV

TM

- User Guide

- Guide de l’utilisateur

- Guía del usuario

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 specic languages

using the Regional selection box in the upper right corner of our website.

“Before operating the equipment, read the instructions in this manual carefully.”

ViewSonic

TM

Model No. : VS12335-2M

Dear ViewSonic customer,

Congratulations on your purchase of a ViewSonic TV display. For maximum benet of your

TV, please read these instructions before any operations.
For assistance, please contact ViewSonic service team at http://www.viewsonic.com

or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775.
To purchase or inquire about any accessories and installation services for your TV, please visit
www.viewsonic.com or call: United States 1-800-688-6688, Canada 1-866-463-4775.

Important! Please save the original box and all packing material for future shipping needs.

We recommend you registering your TV on the internet at: www.viewsonic.com

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.

For Your Records

ENGLISH

Product Name:

[ ] VTMS2431

ViewSonic LCD TV

Model Number:

Document Number:

Serial Number:

Purchase Date:

[ ] VS12335-2M

VTMS2431-1M_UG_ENG Rev. 1A 03-24-09

____________________________________________
____________________________________________

Product disposal at end of product life

ViewSonic is concerned about the preservation of our environment. Please dispose of this
product properly at the end of its useful life. Your local waste disposal company may provide
information about proper disposal.
The lamp in this product contains mercury. Please dispose of properly in accordance with
environmental laws of your location.

Customer Support

For technical support or product service, see the table below or contact your reseller.
Note: You will need the product serial number.

Country/Region Web Site

United States www.viewsonic.com

T= Telephone
F= Fax

T (Toll-Free) = 1-800-688-6688
T (Toll) = 1-424-233-2530
F = 1-909-468-1202

Email

[e-mail]

T (Toll-Free) = 1-866-463-4775

Canada www.viewsonic.com

Renta y Datos, 29 SUR 721, COL. LA PAZ, 72160 PUEBLA, PUE. Tel: [phone] CON 10 LINEAS
Electroser, Av Reforma No. 403Gx39 y 41, 97000 Mérida, Yucatán. Tel: [phone]
Other places please refer to http://www.viewsonic.com/la/soporte/index.htm#Mexico

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

T (Toll) = 1-424-233-2533
F = 1-909-468-1202

i

[e-mail]

ENGLISH

Contact Information for Sales & Authorized Service (Centro Autorizado de Servicio) within Mexico:

Name, address, of manufacturer and importers:

México, Av. de la Palma #8 Piso 2 Despacho 203, Corporativo Interpalmas,
Col. San Fernando Huixquilucan, Estado de México
Tel: [phone]
http://www.viewsonic.com/la/soporte/index.htm

NÚMERO GRATIS DE ASISTENCIA TÉCNICA PARA TODO MÉXICO: 001.866.823.2004

Hermosillo:

Distribuciones y Servicios Computacionales SA de CV.
Calle Juarez 284 local 2
Col. Bugambilias C.P: 83140
Tel: [phone]
E-Mail: [e-mail]

Puebla, Pue. (Matriz):

RENTA Y DATOS, S.A. DE C.V. Domicilio:
29 SUR 721 COL. LA PAZ
72160 PUEBLA, PUE.
Tel: [phone] CON 10 LINEAS
E-Mail: [e-mail]

Villahermosa:

Compumantenimietnos Garantizados, S.A. de C.V.
AV. GREGORIO MENDEZ #1504
COL, FLORIDA C.P. 86040
Tel: [phone]
E-Mail: [e-mail]

Veracruz, Ver.:

CONEXION Y DESARROLLO, S.A DE C.V. Av.
Americas # 419
ENTRE PINZÓN Y ALVARADO
Fracc. Reforma C.P. 91919
Tel: [phone]
E-Mail: [e-mail]

Chihuahua

Soluciones Globales en Computación
C. Magisterio # 3321 Col. Magisterial
Chihuahua, Chih.
Tel: [phone]
E-Mail: [e-mail]

Distrito Federal:

QPLUS, S.A. de C.V.
Av. Coyoacán 931
Col. Del Valle 03100, México, D.F.
Tel: [phone]
E-Mail : [e-mail]

Guerrero Acapulco

GS Computación (Grupo Sesicomp)
Progreso #6-A, Colo Centro
39300 Acapulco, Guerrero
Tel: [phone]

MERIDA:

ELECTROSER
Av Reforma No. 403Gx39 y 41
Mérida, Yucatán, México CP97000
Tel: [phone]
E-Mail: [e-mail]

Cuernavaca

Compusupport de Cuernavaca SA de CV
Francisco Leyva # 178 Col. Miguel Hidalgo
C.P. 62040, Cuernavaca Morelos
Tel: [phone]
E-Mail: [e-mail]

Guadalajara, Jal.:

SERVICRECE, S.A. de C.V.
Av. Niños Héroes # 2281
Col. Arcos Sur, Sector Juárez
44170, Guadalajara, Jalisco
Tel: [phone]
E-Mail: [e-mail]

Monterrey:

Global Product Services
Mar Caribe # 1987, Esquina con Golfo Pérsico
Fracc. Bernardo Reyes, CP 64280
Monterrey N.L. México
Tel: [phone]
E-Mail: [e-mail]

Oaxaca, Oax.:

CENTRO DE DISTRIBUCION Y
SERVICIO, S.A. de C.V.
Murguía # 708 P.A., Col. Centro, 68000, Oaxaca
Tel: [phone]
Fax: [phone]
E-Mail. [e-mail]

Tijuana:

STD
Av Ferrocarril Sonora #3780 L-C
Col 20 de Noviembre
Tijuana, Mexico

FOR USA SUPPORT:

ViewSonic Corporation
381 Brea Canyon Road, Walnut, CA. 91789 USA
Tel: [phone] (English); 866-323-8056 (Spanish);
Fax: [phone]
E-Mail: http://www.viewsonic.com

4.3: ViewSonic Mexico Limited Warranty LTV_LW02 Rev. 1A 06-25-07

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

ii

Caution

Please use the following ViewSonic TVs only with the following wall-mount kit.

ViewSonic TV Model No.

VTMS2431

ViewSonic Wall-Mount
kit model

Use with other Wall-Mount kit may cause instability and possibly result in injury.
To find the perfect mount for VTMS2431, please browse www.viewsonic.com or call our

service team: United States 1-800-688-6688, Canada 1-866-463-4775.

WMK-10

ENGLISH

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431iii

Contents

Copyright Information ................................................................................... 1

Warning and Notication .............................................................................. 2

Important Safety Instructions ...................................................................... 3

Compliance Information ............................................................................... 8

Declaration of RoHS Compliance ................................................................ 9

ENGLISH

Getting Started

List of Features.............................................................................................. 10

Package Contents ......................................................................................... 10

Installing the LCD TV .................................................................................... 11

Installing the Stand ...................................................................................... 11

Disconnecting the Stand .............................................................................. 11

Mounting ViewSonic LCD TV to the wall ..................................................... 12

Wall Mount Kit Specications (VESA).......................................................... 13

Front View of the Product ............................................................................. 14

Rear View of the Product .............................................................................. 15

Connecting the LCD TV ................................................................................ 17

Cable System or VHF/UHF Antenna System .............................................. 17

Cable System and VHF/UHF Antenna System............................................ 17

HD Cable Box/HD Satellite Box ................................................................... 17

Personal Computer ...................................................................................... 19

Other Equipment .......................................................................................... 20

Using the TV Features

Remote Control and TV Controls ................................................................. 21

Inserting Remote Control Batteries .............................................................. 21

Remote Control and TV Controls ................................................................. 21

Operation ....................................................................................................... 25

Other Information

Cleaning the LCD TV ..................................................................................... 41

Programming your Cable or Satellite Box remote ..................................... 41

Troubleshooting ............................................................................................ 42

Specications ................................................................................................ 44

RS232 Protocol .............................................................................................. 45

Limited Warranty ........................................................................................... 56

Mexico Limited Warranty .............................................................................. 57

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431iv

Copyright Information

Copyright © ViewSonicTM Corporation, 2009. All rights reserved.

ViewSonic, the three birds logo, OnView, ViewMatch, and ViewMeter are registered
trademarks of ViewSonic Corporation.

NERGY STAR

E
As an E
the E

NERGY STAR

NERGY STAR

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.

®

is a registered trademark of the U.S. Environmental Protection Agency (EPA).

®

partner, ViewSonic Corporation has determined that this product meets

®

guidelines for energy efciency.

ENGLISH

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

1

ENGLISH

WARNING

Do not expose this TV to rain or moisture.

It may increase the risk to re or electronic

shock.

Da n ge ro us V o lt ag e: T h e

lightning ash with arrowhead

symbol, within an equilateral
triangle, is intended to alert the
user to the presence dangerous
voltage within the inside of the
product that may be sufficient
level to constitute a risk of
electric shock to persons.

Instruction: The exclamation
po int with in an e quilate ral
triangle is intended to alert
the user to the presenc e of
im p or ta nt o pe ra tin g a nd
servicing instructions in the
literature accompanying the
appliance.

The TV shall not be exposed to dripping

or splashing. Do not put objects lled with

liquids, such as vases, on the TV.

CAUTION

To prevent electric shock, do not use this
polarized AC plug with an extension cord,
receptacle or other outlet unless the blades
can be fully inserted to prevent blade
exposure.

Declaration of Conformity

Trade Name: ViewSonic
Model: VTMS2431
Responsible Party: ViewSonic Corporation
Address: 381 Brea Canyon Road, Walnut,
CA. 91789 USA
Telephone Number: 1-800-688-6688

This device complies with part 15 of the
FCC rules. Operation is subject to the
following two conditions: 1) This device
may not cause harmful interference, and 2)
this device must accept any interference
received, including interference that may
cause undesired operation.

NOTIFICATION

This device has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide
reaso nable protect ion against har mful
interference in a residential installation. This
device generates, uses and can radiate radio
frequency energy and, if not installed and
used in accordance with the instructions,
may cause harmful interference to radio
communications.
However, th e r e is no guaran tee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by
turning the equipment off and on, the user is
encouraged to try to correct the interference
by one or more of the following measures:

◊ Reorient or relocate the receiving antenna.
◊ Increase the separation between the device

and receiver.

◊ Connect the device into an outlet on a

circuit different from that to which the
receiver is connected.

◊ Consult the dealer or an experienced

radio/TV technician for help.

Pursuant to FCC regulations, be
cautioned that any changes or

modications not expressly approved in

this manual could void your authority to
operate this equipment.

Safety

◊ Operate the TV only on 120 – 240 V AC.
◊ Use the AC power cord specied by

ViewSonic and suitable for the voltage
where you use it.

◊ The plug is designed, for safety purposes,

to t into the wall outlet only one way. If

you are unable to insert the plug fully into
the outlet, contact your dealer.

◊ If any liquid or solid object should fall

inside the cabinet, stop operating, unplug
the TV immediately and have it check by

qualied service technician.

◊ If you will not be using the TV for a long

time, disconnect the power by pulling the
plug itself. Do not pull on the cord.

◊ For details concerning safety precautions,

refer to “Important Safety instructions” on
page 3.

Installation

◊ The TV should be installed near an easily

accessible power outlet.

◊ To prevent internal heat buildup, do not

block the ventilation openings.

◊ Do not install the TV in a hot or humid

place, or in a place subject to excessive
dust or mechanical vibration.

◊ Avoid operating the TV at temperatures

below 41°F (5°C).

◊ When the TV is transported directly form

a cold to a warm location, or if the room
temperature changes suddenly, the picture
may be blurred or show poor color due to
moisture condensation. In this case, please
wait a few hours before turning on the TV,

in order to let the moisture evaporate rst.

◊ To ensure best picture quality, do not

expose the screen to direct illumination
or sunlight. We recommend you use spot
lighting directed down from the ceiling or
to cover the windows that face the screen
with opaque curtains. It is better that TV

is installed where the oor and walls are
not of a reective material.

To Customers

To inst all the specifi ed TV, s uffici ent
ex p ertis e is requ i red. Ma ke sure you
subcontract the installation to ViewSonic
deal er or licensed contractors and pay
adequate attention to safety during the
installation.

Note

T h is te l e v is io n in cl u de s a Q AM
demod ulator, whic h should all ow you
to re c e ive unscr a m bled digit a l cable
television programming via subscription
service to a cable service provider. The
type of programming and signal provided
by your cable service provider will affect
the availability of digital cable television
programming in your area.

Trademark Information

Macintosh is a trademark of Apple Inc.,
registered in the U.S. and other countries.

HDMI, the HDMI logo and High-Denition

Mul t imedia In t e rface a re tradem a r ks
or re g is t er ed t r ad e ma rk s of Do l by
Laboratories.
Blu-ray Disc is a trademark.
Ad obe i s a reg i ster e d trad emark or a
trademark of Adobe Systems Incorporated
in United States and/or other countries.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

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 apparatus near water.

6) Clean with a soft, dry cloth.

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

ampliers) 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 that 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 provided

plug does not t into your outlet, consult an

electrician for replacement of the outlet.

10) Prevent the power cord from being tread
upon or pinched, particularly at the plug,
convenience receptacles, and the point where
they exit from the device. Be sure that the
power outlet is located near the equipment so
that it is easily accessible.

11) Only use attachments/ accessories specied

by the manufacturer.

12) Use only with the cart, stand, tripod,

bracket, or table specied by the

manufacturer, or sold with the
apparatus. When a cart is used, use
caution when moving the cart/apparatus
combination to avoid injury from tip-over.

13) Unplug this apparatus when it will be unused
for a long period of time.

14) Refer all servicing to qualied service

personnel. Servicing is required when the
apparatus has been damaged in any way,
such as power-supply cord or plug is damaged,
liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been
exposed to rain or moisture, or the unit does
not operate normally, or has been dropped.

USE

AC power Cord

Keep the following guidelines to protect the AC
power cord from being damaged. If the AV power

cord is damaged, it may result in a re or an electric

shock. Stop using it and ask your dealer or ViewSonic
service center to exchange it.

◊ Do not place the TV where the power cord is

subject to wear or abuse.

◊ Do not pinch, bend, or twist the cord excessively.

The core lines may be bared and cut, causing a

short-circuit, and resulting in a re or an electric

shock.

◊ Do not convert or damage the power cord.
◊ Avoid power cord being rolled over

or rested upon.

◊ When the power cord plugged in, do not move the

TV.

◊ Keep the power cord away from heat sources.
◊ When you disconnect the AC power cord,

disconnect it from the wall outlet rst.

◊ When disconnecting the power cord, grasp the plug

instead of pulling the power cord.

◊ Use only an original ViewSonic AC power cord,

not other brands.

◊ Do not use the supplied AC power cord on any

other quipment.

Wall outlet

The TV set with a three-wire grounding type
AC power cord plug must be connected
to an AC power socket outlet with a
protective grounding connection.

Do not use an untting outlet.

Insert the plug fully into the outlet. If it
is loose, do not use it. Doing so may cause arcing and

result in a re.

Contact your electrician to change the outlet.

Wiring

For your safety, be sure to unplug the AC power cord
when connecting cables.
Take care not to trip on the cables. It may cause
damage to the TV set.

Electric shock

Do not touch the AC power cord or the TV
with a wet hand. If you plug/unplug the
AC power cord from the TV with a wet
hand, it may cause electric shock.

Lightning storms

During a lightning storm, unplug the TV from the
wall outlet and disconnect the antenna to prevent
damage to the TV.

ENGLISH

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

3

ENGLISH

When not in use

If you will not be using the TV set for long periods of
time, the TV set should be disconnected from the AC
power outlet to prevent power line surges. The TV set
is not disconnected from the AC power source when
the TV set is switched off. To disconnect the TV set
completely, unplug from the AC power outlet.

Overloading

This TV set is designed to operate on a
120 - 240 V AC supply only. If there are
too many appliances connected to the
same AC power outlet, it could result

in a re or an electric shock.

Optional equipment

If optional equipment is to be installed, leave some
space between optional equipment and the TV set.
Picture distortion and/or noisy sound may occur if
the TV set is positioned in close proximity to any
equipment emitting electromagnetic radiation.

Small accessories

Keep small accessories in as safe place where children
are unable to reach.

ANTENNAS

Ant enna grounding a ccording to the
National Electrical Code, ANS/NFPA 70

Antenna

Ground clamp

Electric service

equipment

Ground clamps

Power service grounding
electrode system

NEC: National Electrical Code

Antenna discharge

unit

Grounding conductors

BATTERIES

◊ Do not cast away batteries in a re.
◊ Do not disassembled, overheat, or short-circuit the

batteries.

◊ If battery replaced in the wrong way, it may cause

danger of explosion. Replace only with the same or
equivalent type.

Dispose used batteries

To preserve our environment, dispose of used
batteries according to your local laws or regulations.

Outdoor antenna grounding

If an outdoor antenna is installed, follow the
precautions below. Do not install the outdoor antenna
system in near of overhead power lines or other
electric light or power circuits, or where it can come
in contact with such power lines or circuits.

WHEN INSTALLING AN OUTDOOR ANTENNA
SYSTEM, EXTREME CARE SHOULD BE TAKEN
TO KEEP FROM CONTACTING SUCH POWER
LINES OR CIRCUITS AS CONTACT WITH THEM
IS ALMOST INVARIABLY FATAL.

Be sure the antenna system is grounded so that it can
provide some protection against voltage surges and
built-up static charges.
Section 810 of the National Electrical Code (NEC) in
the U.S.A. and Section 54 of the Canadian Electrical
Code in Canada provides information with in regard
to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna
discharge unit, size of grounding conductors, location
of antenna discharge unit, connection to grounding
electrodes, and requirements for the grounding
electrode.

CLEANING

Cleaning the AC power plug

Unplug the AC power plug and clean it
regularly. If the plug is covered with dust
and gathers moisture, its insulation may

deteriorate and result in a re.

Cleaning the screen surface/
cabinet of the TV set

When cleaning this TV, unplug the AC
power cord. If not, it may result in
electric shock. Use a dry soft cloth
to clean the cabinet of the TV. To remove dust form
the screen, wipe it gently with a soft cloth. Stubborn
stains may be removed with a cloth slightly dampened
with a solution of mild soap and warm water. Never
use strong solvents such as thinner or benzine for
cleaning. If using a chemically pretreated cloth,
please follow the instruction provided on the package.
The ventilation holes can accumulate dust over time.
To ensure proper ventilation, we recommend you to
remove the dust periodically (once a month) using a
vacuum cleaner, while the LCD TV is powered off.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

4

MAGNETIC INFLUENCE

This TV contains a strong magnet in the speaker

unit that generates a magnetic eld. Keep any items
susceptible to magnetic elds away from the speaker.

SOUND

If you hear snapping or popping sound
comes from the TV continuously or
frequently while the TV is operating,
unplug the TV and consult your
dealer or service technician. It is normal for some
TVs to make occasional snapping or popping sounds,
particularly when being turned on or off.

CARRYING THE TV

Carry the TV as instructed

To prevent dropping the TV and causing serious
injury, you must follow these guidelines:

◊ Disconnect all cables before carrying the TV.
◊ Carrying the large size TV requires at least two or

three people.

◊ When you carry the TV, place your hands as

illustrated and hold it securely. Do not put stress on
the LCD panel and the frame around the screen.

◊ When carrying the TV, do not subject it to shocks,

vibration, or excessive force.

◊ When lifting or moving the TV, hold it securely from

the bottom. Place your palm directly under the panel.

VENTILATION

Slots and openings in TV are provided for ventilation.
To ensure reliable operation of the TV and to protect
it from overheating, be sure these openings are not
blocked or covered.
The TV may accumulate dust and get dirty if proper
ventilation is not provided. For proper ventilation,

follow the following guidelines:

◊ Never install the TV face up, down or

sideways.

◊ Never install the TV turned over or

upside down.

◊ Never cover the slots and openings

with a cloth or other materials.

◊ Never block the slots and openings by

placing the TV on a bed, sofa, rug or
other similar surface.

◊ Never place the TV in a conned space,

such as a bookcase or built-in cabinet,
unless proper ventilation is provided.

Leave some space around the TV set as shown below.
Otherwise, air-circulation may be inadequate and

cause overheating, which may cause a re or damage

to the TV set.

Installed on the wall

4 inches
(10 cm)

Installed with stand

11.875 inches
(30.16 cm)

4 inches
(10 cm)

11.875 inches
(30.16 cm)

4 inches
(10 cm)

Leave at least this
space around the set.

ENGLISH

4 inches
(10 cm)

4 inches
(10 cm)

2.375 inches
(6.03 cm)

Leave at least this space around the set.

Do not install the TV set as follows:

Air circulation is blocked. Air circulation is blocked.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

5

ENGLISH

Objects and ventilation holes

Never push any objects into the slots on the TV
cabinet as they may touch dangerous voltage points or

short out parts that could result in a re or an electric

shock. Do not place any objects on the TV.

MOISTURE

Moisture and ammable objects

◊ Keep the product away from moisture. Do not

expose this appliance to rain or moisture. Do not

place objects lled with liquids, such as vases, on

the TV.

◊ Do not use power-line operated V sets near water,

such as in places like a bathtub, washbowl, kitchen
sink, laundry tub, a wet basement, or near a

swimming pool, etc. It may cause re or electric

shock.

◊ Do not let this TV get wet. Never spill

liquid of any kind on the TV. If water
penetrates into the product, unplug the
power cord and contact ViewSonic.
Donot operate the TV. It may result in
electric shock or damage to the TV.

◊ To prevent fire, keep flammable objects

or open ame (e.g. candles) away from

the TV.

INSTALLATION

To do Wall mount installation, you need a Wall­Mount Bracket. When installing or removing the
TV using the Wall-Mount Bracket, be sure to use
qualified contractors. If not properly secured during
installation or removal from the Wall-Mount Bracket,
the TV may fall and cause serious injury.

Optional wall mount

◊ When installing the TV using a Wall-Mount Bracket,

make sure you follow the operating instructions
supplied with the Wall-Mount Bracket.

◊ Attach the brackets supplied with the Wall-Mount

Bracket.

◊ The TV is not designed for hanging from the

ceiling. It may fall and cause serious injury.

Placement

The TV should be installed near an easily accessible
AC power outlet.
Observe the following to prevent the TV from falling
from the stand or wall mount.

◊ Place the TV on a stable, level surface.
◊ Do not hang anything on the TV. Do

not allow children to climb on the TV.

Do not install the TV in places subject to extreme
temperature, such as in direct sunlight, near a
radiator, or heating vent. If the TV is exposed to
extreme temperature, the TV may overheat and cause
deformation of the enclosure or cause malfunction.
Do not install the TV in a place exposed to direct air
conditioning. If the TV is installed in such a location,
moisture may condense inside and may cause a
malfunction.
◊ Do not place the TV in hot, oily, humid

or excessively dusty places.

◊ Do not install the TV where insects

may enter.

◊ Do not install the TV where it may be exposed to

mechanical vibration.

◊ Do not install the TV in a location where it may

spear up, such as on or behind a pillar, or where you
might bump your head on it. It may cause injury.

Preventing the TV from toppling over

To prevent the TV from toppling over, secure the TV
to a wall or stand.

Placement for watching

We suggest you to watch the TV at a distance of 3-7
times that of the screen height, and not in excessive
brightness. It is easy to cause eye fatigue if you watch
TV for too long or in a dark room. To obtain clear
picture, do not expose the screen to direct illumination
or sunlight. Use spot lighting directed down from the
ceiling if you can.

Use in outdoor

This TV is not designed for outdoors
installation. Do not expose the TV to

rain, as it may result in a re or an

electric shock. Also, do not expose
the TV to direct sunlight, as it may
heat up and become damaged.

Vehicle, ships and other vessels

Do not install this TV in a vehicle.
Car accidents may cause the TV to fall
down and cause injury.
Do not install this TV in a ship or vessel.
If the TV is exposed to seawater, it may

cause a re or damage the TV.

Medical institutions

Do not place this TV in a place where medical
equipment is in use.
It may cause the medical equipment to malfunction.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

6

VOLUME ADJUSTMENT

◊ Adjust the volume to avoid disturbing your

neighbors. Sound carries easily at night. Therefore,
we suggest you close the windows or use
headphones.

◊ When using headphones, adjust the volume to

appropriate levels, or hearing damage may result.

LCD SCREEN

◊ Although the LCD screen is made with high-

precision technology and has effective pixels of

99.99% or more, black dots or bright points or light
(red, blue, or green) may appear constantly on the
LCD screen. This is a structural property of the
LCD panel and is not a malfunction.

◊ The LCD screen is made with high-precision

technology. To achieve a high level of performance
and picture quality, this TV’s backlight setting is
set to maximize the brightness of the TV. However,
uneven brightness may be observed when the
LCD TV is viewed in a dark environment without
an input source or a blank screen. This is a normal
condition, not a malfunction of the TV. To improve
this condition, change the Picture mode, Backlight
setting, enable the Light Sensor, or turn on the
Power management.

◊ Avoid exposing the LCD screen surface to direct

sunlight. It is likely to damage the LCD panel.

◊ Do not push or scratch the LCD screen, or place

objects on top of the TV. The image may be uneven
or the LCD panel may be damaged.

◊ If the TV is used in a cold place, a smear may occur

in the picture or the picture may become dark. This
does not indicate a failure. These phenomena
improve as the temperature rises.

◊ When still pictures are displayed continuously,

ghosting may occur. It should disappear after a short
period of time.

◊ The screen and cabinet get warm when the TV is in

use. This is a normal condition.

◊ Spraying insect repellent with volatile material on

the screen will cause damage.

◊ Do not make prolonged contact with rubber or

plastic material.

Broken pieces

Do not throw anything at the TV.
Doing so may break the screen glass and
cause serious injury.
If the surface of the TV cracks, unplug the
AC power cord before touching the TV.
Otherwise electric shock may result.

Handling of broken glass and liquid
crystal leakage

If the LCD panel gets damaged, crystalline liquid
leakage may occur, or scattered broken glass may
result. Do not touch broken glass or crystalline liquid
which is toxic, with bare hands as cuts, poisoning or
skin irritation may occur. Also do not glass fragments
or leaked crystalline liquid get into your eyes or
mouth. Should either contacted your eyes or mouth,
rinse the contacted area thoroughly with water and
consult your doctor.

SERVICING

Do not attempt to repair the TV
yourself, since opening the cabinet
may expose you to dangerous

voltage or other hazards. Ask qualied service

personnel to do the servicing for your TV.

Replacement parts

When replacement parts are required, be sure the

service technician certies in writing that he/she has
used replacement parts specied by the manufacturer

that have the same characteristics as the original parts.
Unauthorized substitutions may cause a fire, an
electric shock or other hazards.

Safety check

Upon completion of repairs to the TV,
ask the service technician to perform
routine safety checks (as specified by the
manufacturer) to determine that the TV is
safe for operating, and to so certify. Ask a

qualied service technician to dispose of the

TV.

For Customers in the United States

There is mercury in the lamp of this product.
Disposal of these materials may be regulated
due to environmental considerations.
For disposal or recycling information,
please contact your local authorities or the
Electronic Industries Alliance (http//www.
eiae.org).

ENGLISH

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

7

ENGLISH

Compliance Information

FCC Statement

This device complies with part 15 of FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy, and if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Warning: You are cautioned that changes or modifications not expressly approved by the
party responsible for compliance could void your authority to operate the equipment.

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.

ENERGY STAR Information:

• Keeping the TV at its factory default settings that meet ENERGY STAR criteria.

• Enabling certain features and functionality of LCD TV will increase its energy consumption,

possibly beyond the limits required for ENERGY STAR qualication.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

8

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:

Substance

Lead (Pb) 0.1% < 0.1%
Mercury (Hg) 0.1% < 0.1%
Cadmium (Cd) 0.01% < 0.01%

6+

Hexavalent Chromium (Cr
Polybrominated biphenyls (PBB) 0.1% < 0.1%
Polybrominated diphenyl ethers (PBDE) 0.1% < 0.1%

) 0.1% < 0.1%

Proposed Maximum

Concentration

Actual Concentration

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 uorescent lamps not exceeding 5 mg per lamp and in other lamps not

specically mentioned in the Annex of RoHS Directive.

2. Lead in glass of cathode ray tubes, electronic components, uorescent 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).

ENGLISH

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.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

9

ENGLISH

Getting Started

List of Features

1. Brilliant HDTV. Vibrant PC monitor. One innovative display.

2. Stylish design for kitchen, home ofce, and dorm room.

3. Super HD 1920x1080 resolution and 1000:1 contrast (typ).

4. PC input for computer applications and web surng.

5. 6 input including HDMI/DVI for the latest HD devices.

Package Contents

Please make sure the following items are included with your LCD TV.
If any items are missing, please contact your dealer.

LCD TV Remote Control

ViewSonic User Guide

Power Cord

with batteries

ViewSonic Quick Start Guide

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

10

Getting Started

Installing the LCD TV

Installing the Stand

1. Lay the TV at on a table with the LCD screen face down. To prevent the TV from being

scratched, put a piece of soft cloth on the table on which the screen will be set. (see Figure 1)

2. Unpack the stand, one hand hold the TV and one hand pull stand with arm together. (see
Figure 2)

3. Stand the TV up. (see Figure 3)

ENGLISH

Disconnecting the Stand

1. Lay the TV at on a table with the LCD screen face down. To prevent the TV from being

scratched, put a piece of soft cloth on the table on which the screen will be set. (see Figure 1)

2. Press on four corners of the hinge cover and pull as arrow direction to disengage the hinge
cover. (see Figure 2)

3. Remove the 4 screws on the hinge, then pull up the stand slowly. (see Figure 3)

4. Then, you shall successfully uninstall the stand. (see Figure 4)

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ViewSonic VTMS2431

11

ENGLISH

Getting Started

Mounting ViewSonic LCD TV to the wall

The LCD TV can be used in a free standing position or wall-mounted. Before installing the
product to the wall, please consider the following guidelines:

• Due to safety concerns, if the VESA mounting kit is purchased separately please make
sure the mounting kit is UL-Listed, and replaceable only by service personnel.

• Read the Important Safety Instructions, at the start of this manual.

• Do not install in a moist or wet environment. This equipment is intended for indoor use.

• Do not install near heat source, or strong magnetic elds.

• Use only ViewSonic approved wall-mounting brackets to support the LCD TV weight.

• Before attaching the wall mount plate to the back cover, ensure the product is working.

• If your LCD TV is already set up for free-standing operation, you need to rst remove the

stand before mounting the device to the wall.

To attach the wall-mount bracket to LCD TV safely, please use the following guidelines:

• Disconnect the power and any other cables that might hinder moving the LCD TV.

• Set the LCD TV on a table or work surface, placing the screen face down on a towel or

woolen blanket to protect the screen surface from damage while installing plate.

• Before installing the LCD TV on the wall, ensure you have recorded the product serial
number on page (i) of the User Guide, as you will need the serial number to request
service should there be a service need.

• Install the wall mount plate to the LCD TV using screws NO LONGER than 10mm, as
longer screws found in universal (non-ViewSonic) wall mount kits may damage the
power supply causing the unit to fail. The wall-mount screw type is M4 x L10.

• Mount the wall mount bracket to the wall ensuring use of proper screws to support the
installation. Ensure there is at least 3cm of space surrounding any air-vents of your
LCD TV to allow adequate cooling during operation.

• Hang the LCD TV wall mount plate to the wall mount bracket, completing installation.
Enjoy your ViewSonic LCD TV!

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

12

Getting Started

Wall Mount Kit Specications (VESA)

When attaching to other building materials, please contact your nearesr dealer.

A

C

B

D

Product Family inch VESA Spec. (A x B) Standard Screw (C x D) Quantity

16 75 x 75 mm M4 x L10 4

19 ~ 24 100 x 100 mm M4 x L10 4

LCD TV

26 ~ 27 200 x 100 mm M4 x L10 6

32 ~ 37 400 x 200 mm M6 x L10 6

42 ~ 47 600 x 200 mm M6 x L10 10

52 400 x 200 mm M6 x L10 6

ENGLISH

• ViewSonic provides the standard dimensions for wall mount kits as shown in the table
above.

• When purchasing our wall mount kit, a detailed install manual and all parts necessary for
assembly are provided.

• Do not use the screws that longer than the standard dimension, as they may cause damage
to the inside of the TV set.

Caution

Please use the following ViewSonic TVs only with the following wall-mount kit.

ViewSonic TV Model No.

VTMS2431

ViewSonic Wall-Mount
kit model

WMK-10

Use with other Wall-Mount kit may cause instability and possibly result in injury.
To find the perfect mount for VTMS2431, please browse www.viewsonic.com or call our

service team: United States 1-800-688-6688, Canada 1-866-463-4775.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

13

ENGLISH

Getting Started

Front View of the Product

Item Description

Power ON/OFF button

1

Power LED Indicator

2

Remote Control Receiver

3

Volume Down

4

Volume Up

5

MENU

6

CH Down

7

CH Up

8

INPUT

9

Turn the power on from standby mode or turn the power off to
return to the standby mode.

Lights up in blue when the TV is turned on. Lights up in orange
when the TV is in standby mode.

Receives IR signals from the remote control.

Decrease sound volume or adjust a highlighted control while in
OSD menu.

Increase sound volume or adjust a highlighted control while in
OSD menu.

Turn OSD menu ON/OFF.

Channel down when source is TV, or select a control while in
OSD menu.

Channel up when source is TV, or select a control while in OSD
menu.

Select input source.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

14

Getting Started

Rear View of the Product

ENGLISH

Item Description

1 Power (AC input)

HDMI Input Terminal

2

VGA signal input

3

YPbPr signal input

4

Composite Video input

5

S-Video input

6

AV/ S-Video Audio input

7

(left/ right)

YPbPr/ DVI Audio input

8

(left/ right)

Plug-in the supplied AC Power cord and connect to the AC input
power source.

Connect this port to the HDMI/HDMI-DVI jack of the compatible
equipment.

Connect a 15-pin D-sub RGB cable to the RGB output of your
computer and the other end to the RGB input on the rear of the LCD
TV.

Connect this jack to the YPbPr output of A/V device.

Connect this jack to the composite video output connectors on your
A/V equipment.

Connect the S-Video cable from the compatible device to this
connector on the rear panel of the LCD TV.

Connect the Audio in cable for AV/ S-Video from this jack to the
corresponding connectors on your A/V device.

Connect the Audio in cable for YPbPr/ HDMI-DVI from this jack to
the corresponding connectors on your A/V device.

PC Audio input

9

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

Connect the RGB Audio Out on your computer to the RGB Audio
on the rear of the LCD TV.

15

Getting Started

Item Description

ENGLISH

10 Headphone Jack

11 TV Input Jack

12 RS232 signal input

13 USB

Connect to your headphones. By connecting the headphones, you can
listen to the sound from the TV on headphones.

If you connect the headphones, the TV speakers will be muted.

※

Connect this jack to your Cable or VHF/UHF antenna.

This port is for the service technician’s use. For the function description
of RS232, see RS232 Protocol on page 45~55. (The RS232 application
software is not supplied with TV.)

Connect to your USB devices, such as USB ash drive/ portable hard drive.

AV connection

Connect the composite video and audio input jacks to the corresponding output jacks of your A/V
device.

--- VIDEO: Composite Video input [5]

--- AUDIO: AV/ S-Video signal Audio input [7]

S-Video connection

Connect the S-Video and audio input jacks to the corresponding output jacks of your VCR or
other video device that has S-Video. S-Video provides better picture quality than composite video
connection. If both are connected, S-Video signal has priority.

--- VIDEO: S-Video input [6]

--- AUDIO: AV/ S-Video signal Audio input [7]

Component (YPbPr) connection

YPbPr provides better picture quality than the S-Video or the AV connection.
＊For YPbPr connection, connect the component video (YPbPr) and audio jacks to the

corresponding output jacks of your A/V device.

--- VIDEO: YPbPr signal input [4]

--- AUDIO: YPbPr/DVI signal audio input [8]

HDMI connection

HDMI (High-Denition Multimedia Interface) is a licensable audio/video connector interface for

transmitting uncompressed, encrypted digital streams between this TV and any HDMI-equipped
audio/video equipment.

＊Be sure to use only an HDMI cable that bears the HDMI logo.
＊If the equipment has a DVI jack and not an HDMI jack, connect the DVI jack to the HDMI

Input Terminal (with DVI-to-HDMI cable or adapter), and connect the Audio cable to the
Audio In jacks.

DVI-to-HDMI cableHDMI cable

Audio cableAudio cable

DVI-to-HDMI adapter

1. With HDMI cable: HDMI Input Terminal [2]

2. With HDMI-DVI cable --- VIDEO: HDMI Input Terminal [2]

--- AUDIO: YPbPr/ DVI signal Audio input [8]

Computer connection

Connect the VGA cable and Audio cable from the VGA signal input and PC Audio input to the
corresponding ports on your A/V device.

--- VIDEO: VGA signal input [3]

--- AUDIO: PC Audio input [9]

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

16

Getting Started

Connecting the LCD TV

Cable System or VHF/UHF Antenna System

Enjoy the high-denition and standard-denition digital programming along with standard­denition analog programming.

☼

• This TV is capable of receiving unscrambled digital programming for both cable and

external VHF/UHF antenna.

• We strongly recommend that you connect the antenna/cable input using a 75-ohm coaxial

cable (not supplied) to ensure the best picture quality.

Cable or VHF/UHF

75-ohm coaxial cable Rear of TV

VHF/UHF/CABLE input

Cable System and VHF/UHF Antenna System

Use an optional A-B RF switch (not supplied) to switch between the cable and antenna
programming, as shown below.

A-B RF switch

Cable

Rear of TV

Antenna

VHF/UHF/CABLE input

ENGLISH

☼

• Remember to set the TV/CATV setting in the TV menu to Air or Cable for the type you

choose.

HD Cable Box/HD Satellite Box

You can also enjoy high-definition programming by subscribing to a high-definition cable
service or a high-definition satellite service. For the optimum picture quality, be sure to
connect this device to your TV via the HDMI or component video (with audio) input on the
back of your LCD TV.

HDMI Connection

Rear of TV

HD cable box/
HD satellite box

HDMI cable

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ViewSonic VTMS2431

17

CATV/Satellite
antenna cable

ENGLISH

Getting Started

DVI Connection

Rear of TV

HD cable box/
HD satellite box

Audio cable

DVI-to-HDMI cable

☼

• If the equipment has a DVI jack and not an HDMI jack, connect the DVI jack to the HDMI

jack [2] and connect the audio jack to the AUDIO In jacks of HDMI [8].

CATV/Satellite
antenna cable

YPbPr or Component Connection

Rear of TV

Component video cable

HD cable box/
HD satellite box

Audio cable

CATV/Satellite
antenna cable

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

18

Getting Started

Personal Computer

Use the LCD TV as the monitor of your computer.
The picture below shows the connection for PC. The LCD TV can also be connected to PC
with DVI or HDMI output.

Rear of TV

Connect to an HDMI
compatible PC with
the HDMI cable.

Audio cable
(stereo mini plugs)

VGA 15 Pin cable

☼

• Connect the PC IN jack to the PC using a 15-pin cable and audio cable.

• If the PC is connected to TV and no signal has been input from PC for more than 5 seconds,

the TV will enter standby mode automatically.

ENGLISH

PC Timing Reference Chart

Mode Aspect Ratio Handling Compatible Input

Standard Resolution FS*Full-Screen RGB

720 x 400 @ 70Hz 1920 x 1080 Yes
VESA 640 x 480 @ 60Hz 1920 x 1080 Yes
VESA 640 x 480 @ 75Hz 1920 x 1080 Yes
VESA 800 x 600 @ 60Hz 1920 x 1080 Yes
VESA 800 x 600 @ 75Hz 1920 x 1080 Yes

MAC 832 x 624 @ 75Hz 1920 x 1080 Yes
VESA 1024 x 768 @ 60Hz 1920 x 1080 Yes
VESA 1024 x 768 @ 75Hz 1920 x 1080 Yes

Apple, Mac II 1152 x 870 @ 75Hz 1920 x 1080

VESA 1280 x 768 @ 60Hz 1920 x 1080 Yes
VESA 1280 x 1024 @ 60Hz 1920 x 1080 Yes
VESA 1440 x 900 @ 60Hz 1920 x 1080 Yes
VESA 1680 x 1050 @ 60Hz 1920 x 1080 Yes
VESA 1920 x 1080 @ 60Hz 1920 x 1080 Yes

☼

• This TV’s PC VGA input does not support interlaced signals.

• For the best picture quality, we recommend that you use the signals (boldfaced) in the above

chart with a 60 Hz vertical frequency from a personal computer.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

19

ENGLISH

Getting Started

Other Equipment

DVD Player/
VCD Player/
Game system

AC power
socket

DVD Player/
Personal
Computer

Digital
cable box

Personal
Computer

Blu-ray Disc
Player/ PS3

Personal
Computer

VCD Player/
Game system

DVD Player/
VCD Player/
Game system

Digital satellite
receiver

DVD
Player

HeadphoneDVD Player/

Audio
system

VHF/ UHF
CABLE

USB Device

☼

• Please refer to the Quick Start Guide (supplied) when connecting the other equipment to

your LCD TV.

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

20

Using the TV Features

Remote Control and TV Controls

Inserting Remote Control Batteries

1. Remove the battery cover by pulling then lifting the knob on the cover.

2. Insert the batteries, corresponding to the (+) and (-) markings on the battery compartment.

3. Reattach the battery cover.

CAUTION

• Only use the specied AA batteries.

• Do not mix new and old batteries. This may result in creaking or leakage, which may pose
a risk of re or lead to personal injury.

• Insert batteries according to (+) and (-) markings. Inserting the batteries incorrectly may
result in leakage, which may pose a risk of re or lead to personal injury.

• Dispose of the battery in accordance with local laws and regulations.

• Keep the batteries away from children or pets.

• When the remote control will not to be used for an extended period, remove the batteries.

ENGLISH

Remote Control and TV Controls

Buttons located at the bottom of the LCD TV will operate the same
as these buttons on the remote control.

Button Description

1 INPUT

Press to display the INPUT source list and select
the source with
selection, press ENTER.

buttons. To conrm the

▲/▼

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ViewSonic VTMS2431

21

Using the TV Features

Button Description

ENGLISH

2 ENTER

3 TV

4 - VOL +

5 GUIDE

Press to conrm the selection in the OSD menu, or

to enter the OSD menu you select.
Press ENTER after you input channel numbers
will change channels immediately.

Press to direct to TV source when in any other
source.

Press to adjust the volume.

Press to display the Electronic Program Guide
(EPG). It contains the program information for the
channel you’re watching.

The picture here shows an example of the GUIDE

＊

screen in a DTV source.

6 LIST

7 0~9, -

number
buttons

8 RECALL

Press this button to show a small window showing
program list, you can scroll through the list to select
the channel you want directly without using the

button.

/▼

Press 0~9 and “-” to select a channel. After you
input the channel numbers, press ENTER button
to direct to the channel immediately, or wait for 3
seconds to change automatically.

Press to return to previous channel.

▲

9 SLIDE

SHOW

10 PLAY/

PAUSE

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ViewSonic VTMS2431

Press to display the photo les in slideshow mode.

Press to pause or play in photo/movie mode.

22

Using the TV Features

Button Description

11 PREVIOUS

12 NEXT

13 POWER

14 ▲▼◄►

buttons

15 MENU

16 ▼ CH ▲

17 ZOOM

Press to display previous photo. Function as ◄ key

when in USB mode menu.

Press to display next photo. Function as ► key

when in USB mode menu.

Press this button to turn the power on from standby
mode. Press it again to return to the standby mode.

Press these buttons to navigate the OSD menus. ▲/▼
is for function select, and ◄/► is for function

adjustment.

Press to turn the OSD (On-Screen Display) menu
on.

Press to change the channels up or down.

Press this button repeatedly to select the screen size.
You can select from Full, 4:3,Movie Scale, and
Zoom In.

The digital TV HD signal is available in Full

＊

and 4:3.

ENGLISH

Full

Suitable for stretching 4:3 programs to

ll the screen.

4:3

Suitable for viewing conventional 4:3
programs in their normal format.

Movie Scale

This mode is useful for 1.78:1 DVDs.
When viewing 1.85:1 DVDs movie
scale mode will still show very thin
black bands at the top and bottom of the
screen.

Zoom In

Suitable for viewing wide-screen 2.35:1
anamorphic DVDs in full screen.

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Using the TV Features

Button Description

ENGLISH

18 FAV

19 MUTE

20 INFO

21 SLEEP

Press this button to show Favorite List and select your
favorite channels that have already been stored.

To preset favorite channels, use the Favorite item

＊

in the TV menu.(see page 27)

Press to turn off the sound. To restore the sound,
press this button again, or press the VOL+ button.

Press this button to display the current state of the
LCD TV.

Press repeatedly to set the off timer. The function
is used to automatically shut off the LCD TV after
a preset period of time passed. There are several

times for choice – Off, 5 Min, 10 Min, 15 Min, 30

Min, 45 Min, 60 Min, 90 Min, 120 Min, 180 Min,
240 Min.

22 MTS

23 C.C

24 16:9/4:3

25 ROTATE

26 EXIT

27 STOP

※

Button 9~12, 24~27 only works under Movie mode of the USB

input source.

Press this button to choose the available sound
output that is preset by TV broadcasting station.
(EX: Mono, Stereo, SAP)

Press to select the Closed Caption menu in the TV
mode.

Press to switch between 16:9 and 4:3 aspect ratio
screen.

Press to rotate the photos in 90°, 180°, 270°, and
0°.

Press to exit the current screen.
Press to return to photo thumbnail screen or stop the

movie playing and go back to the Movie Preview
screen.

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Using the TV Features

Operation

Turning the TV On and Off

Press the POWER button on the remote control.
You can also use the Power button on the front of the
panel.

Changing Channels

1. Using Channel Buttons

Press ▼CH▲ button to change channels, and the TV

changes channels in sequence. You will see all channels
that have been memorized. Channels erased or not
memorized will not be shown.

2. Using Number Buttons
(1) ATV
The “-” button has no function in ATV mode. Directly
press the number buttons to select channels.
(2) DTV
Use “-” button to select the sub channel in DTV.
Ex: Your desired number is 80-3.
Press 8 → press 0 → press “-” → press 3.
＊Return to the previous channel, press RECALL
button.

ENGLISH

Adjusting the Volume

Press VOL +/- to adjust volume.
To turn off the volume, press MUTE.
To restore volume, press MUTE again, or press VOL +/-
directly.

Viewing the Displayed Information

To display the current information of the LCD TV:
Press INFO, and the current state will be displayed on
the screen. (It shows all or some of the information about
Input, Channel, Resolution, Audio Type, etc., depending
on what input source it is in)
＊The picture here shows an example of the INFO screen
in a DTV source.

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ENGLISH

Using the TV Features

Storing Channels into Memory

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.
Press ▲ or ▼ to select “TV Source”, and use ◄ or ►

to select the antenna connection to “Air” or “Cable”.
Air: RF signal programs by “Air”.
Cable: RF signal programs by “Cable”.

3. Press ▲ or ▼ to select “Auto Scan”, then press ► to

enter.

4. Press ▲ or ▼ to select “Scan all channels”, “Digital
channel only”, or “Analog channel only” and press ► to

perform Auto Scan function.
To stop scanning, press MENU at any time.

5. The Auto Scan screen will be shown, and after it is

done, the screen will return to the rst found channel.

Viewing the Menus

1. Press the MENU button to display the OSD main menu.
There are six top menus on the screen: PICTURE,
AUDIO, TIME, OPTION, LOCK, and CHANNEL.

2. Press ◄ or ► to select your desired top menu.

3. Press ENTER or ▼ to enter the menu you select.

4. Use ▲▼ to select the control you want to adjust.

5. When selecting the control with ►, press ► to enter
next level menu or enable the function. (► will only

appear when the control is highlighted)

6. Press ◄► to adjust or select the settings.

7. Press MENU to exit from the OSD menu.

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Using the TV Features

Selecting the Input Source

To select the TV or other external input sources connected
to the TV.

1. Press the INPUT button on the remote control.

2. Press ▲ or ▼ to select the required input source between

TV, AV, S-Video, YPbPr, HDMI, PC, or USB.

3. To conrm the selection, press ENTER.

Favorite Channel Setting

To set your favorite channel into memory:

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.
Press ▲ or ▼ to select “Favorite”, then press ► button

to enter “Favorite” setting.

3. Press ▲ or ▼ to select the channel you’d like to be your

favorite channel.
Press ENTER to conrm your selection.

4. To cancel the selection, Press ENTER again on the selected
channel.

5. Press MENU to exit.

＊To view your favorite channels, press FAV button to
show Favorite List and select your favorite channels that
have already been stored.

ENGLISH

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ENGLISH

Using the TV Features

Adding/Erasing Channel

When the channel is erased, it will not appear on the

screen when you browse the channels with ▼CH▲

button. To see the channel again, you must add the channel
or perform the “Auto Scan” (page 26) function again.

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.
Press ▲ or ▼ to select “Show/Hide”, then press ►

button to enter “Show/Hide” setting.

3. Press ▲ or ▼ to select the channel you want to Show/

Hide, and check or uncheck it with ENTER button.

4. Press MENU to exit.

Channel Name Setting

To edit a name for the current channel:

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.

3. Press ▲ or ▼ to select “Channel No.”, then press ◄ or ►

to select the channel you want to edit the name.

4. Press ▲ or ▼ to select “Channel Label”, then press ►

button to enter “Channel Label” setting.

5. Use ▲ or ▼ to choose letters or signs, ◄ or ► to move

forward or backward.

6. After you input the channel name, press MENU or
ENTER to complete the setting.

7. Press MENU to exit.

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Using the TV Features

Adjusting the Settings

1.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control of “Contrast”,

“Brightness”, “Sharpness”, “Tint”, “Color”, then press ◄
or ► to adjust the level.

(4) Press MENU to exit.

2.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control of “Picture Mode”,

“Color Mode”, “Zoom Mode”, “Noise Reduction”,
“Sound Mode”, “MTS”, “Prefer Language” (in DTV mode),
“Surround Sound”, “Audio Only”, “Sleep Timer”, “Time
Zone”, “DST”, “Time Format”, “Auto Sync”, “Clock”,
“Menu Language”, “Transparency”, “OSD Time Out”,
“DCR” (Dynamic Contrast Ratio), and “TV ID”, then

press ◄ or ► to select your desired option.

(4) Press MENU to exit.

ENGLISH

＊When in YPbPr source, the option selected in Picture Mode
of PICTURE Menu (Standard, Dynamic, Soft, or Personal)
will be applied in USB source.

3.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control with ►, including

“Treble/Bass”, “Closed Caption”, “Restore Default”, then

press ► to perform the function or enter detailed

settings.

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ENGLISH

Using the TV Features

Setting up Time menu

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “TIME” menu.

3. Press ▲ or ▼ to select “Sleep Timer”, and press ◄ or
► to set the “Sleep Timer” from 5~240 min, or Off.

4. Press ▲ or ▼ to select “Time Zone”, and select the correct
time zone of your area with ◄ or ►. The displayed time

of “Clock” will be changed at the same time automatically.

To adjust “Clock”, select “Clock” and press ►. Use ◄
or ► to change between year/ month/ date/ hour/ minute,
▲ or ▼ to adjust. When you nish adjustment, select

“OK” and press ENTER to complete the setting.
＊The “Clock” time can only be adjusted manually

when “Auto Sync” is set to “Off”.

5. Press ▲ or ▼ to select “DST” (Daylight Saving Time),
and select On or Off with ◄ or ► according to the time

zone of your area. The “Clock” time will change
automatically.

6. Press ▲ or ▼ to select “Time Format”, and ◄ or ► to

select 12-hour or 24-hour.

7. Press MENU to exit.

Closed Caption Setting

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “OPTION” menu.
Press ▲ or ▼ to select “Closed Caption”, then press ►

button to enter “Closed Caption” setting.

3. Press ▲ or ▼ to select CC Mode, Basic Selection, or
Advanced Selection, and use ◄ or ► to make your choice.

Basic Selection: To set basic analog closed caption
options. (CC1~CC4, TEXT1~TEXT4, Off)
Advanced Selection: To select closed caption signal
formats and set up caption modes for digital TV
channels. (Service1~6, Off)

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Using the TV Features

For detailed Close Caption setting:

1. Press ▲ or ▼ to select “Option”, then press ► to enter

“Option” setting.

2. Press ◄ or ► to select the Mode to be “Custom”, and then
use ▲ or ▼ to select desired options and use ◄ or ► to

adjust detailed settings.
＊When you select the Mode to be “Default”, you can

not adjust the detailed settings.

ENGLISH

Using the Parent Controls

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “LOCK” menu.

3. Press ENTER or ▼ to enter Password.

4. Enter the password. (The default password is 0000)

5. Move to “System Lock”, and select “On” to enable the
detailed settings.

6. Move to “US” or “Canada” rating system.

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ENGLISH

Using the TV Features

US: Press ► to set TV or MPAA ratings.

(1) TV

1. Press ▲ or ▼ to select “TV”, then press ► to enter

“TV” rating system setting.
The following screen will allow you to customize

the following TV ratings:

Y (all children)
Y7 (older children)
G (general audience)
PG (guidance suggested)
14 (strongly cautioned)
MA (mature audience)

You can also customize the TV ratings for the
following content:

ALL (
FV (fantasy violence)
V (violence)
S (sexual situations)
L (adult language)
D (sexsual dialog)

All types content)

2. Press ENTER to set or reset each area.

3. Press MENU to exit.

(2) MPAA

1. Press ▲ or ▼ to select “MPAA”.

2. Press ▲ or ▼ to select your desired MPAA ratings

level.

The MPAA ratings level are dened as following:

G (general audience)
PG (parental guidance suggested)
PG-13 (recommended for children 14 years of age

or older)

R (mature audience)
NC-17 (no one under 17 years of age)
X (adult audience only)
N/A (not applicable)

3. Press MENU to exit.

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Using the TV Features

Canada: Press ► to set Canadian English and French

ratings.
(1) Canadian English

1. Press ▲ or ▼ to select “Canada Eng”.

2. Press ► to enter.

3. Press ▲ or ▼ to select your desired Canadian

English rating level.

The Canadian English rating levels are dened as

following:

C (children)
C8+ (children eight years and older)
G (general programming, suitable for all audiences)
PG (parental guidance)
14+ (viewers and older)
18+ (adult programming)
EXEMPT (exempt)

4. Press MENU to exit.

(2) Canadian French

1. Press ▲ or ▼ to select “Canada Fre”.

2. Press ► to enter.

3. Press ▲ or ▼ to select your desired Canadian

French rating level.

ENGLISH

The Canadian French rating levels are dened as

following:

G (genenral)
8ans+ (children eight years and older)
13ans+ (not appropriate for children of less than 13

years)
16ans+ (not appropriate for children of less than 16
years)

18ans+ (reserved to adults)
EXEMPT (exempt)

4. Press MENU to exit.

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ENGLISH

Using the TV Features

To Block Unrated Movie or TV Programs

1. Press ▲ or ▼ to select “Unrated Lock”, then press ◄
or ► to select “On” or “Off”. When “On” is selected,

all programs that are not rated will be blocked.

2. Press MENU to exit.

To Set Rating Region Table

RRT Setting defines the rating standard for a particular
geographic region and/ or country.

1. Press ▲ or ▼ to select “RRT Setting”, then press ► to

enter RRT setting.

2. Select each adjustable setting with ▲ or ▼, then press
◄ or ► to select the sub-selection.

3. Press MENU to exit.

＊The picture here only shows an example of the content
of RRT Setting. However, the selections and sub­selections of RRT Setting may be different in your OSD
menu according to the local broadcasting system.

＊To reset RRT setting, move to “Reset RRT”, and press

► to reset.

To Change Password

1. Press ▲ or ▼ to select “Change Password”, then press
► to enter “Change Password” setting.

2. Move to “Enter Old Password”, then enter the old
password with number keys.

3. Enter your new password on “Enter New Password”.

4. Enter your new password again on “Conrm Password”.

After you complete the last step, the screen will return to
the top page of LOCK menu. If so, the password has been
changed successfully.

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Using the TV Features

To block by Input Source

1. Press ▲ or ▼ to select “Input Block”.

2. Press ▲ or ▼ to select the input source, then press ◄
or ► to select from “Block” or “UnBlock”.

3. Press MENU to exit.

ENGLISH

To Restore Factory Setting

1. Press the MENU button to display the OSD main menu.

2. Press ▲ or ▼ to select the “OPTION” menu.

3. Press ENTER or ► to enter “OPTION” menu.

4. Press ▲ or ▼ to select “Restore Default”, then press ►

to restore the factory default setting.

5. Select “Yes” and press ENTER to conrm the setting.

Setting RS232 Parameter

1. Press the MENU button to display the OSD main menu.

2. Press ▲ or ▼ to select the “OPTION” menu.

3. Press ENTER or ► to enter “OPTION” menu.

4. Press ▲ or ▼ to select “TV ID”, then press ◄ or ►

to set the TV ID number from 01~99. For detailed
information, refer to the RS232 Protocol on page 45~55.

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ENGLISH

Using the TV Features

Using PC Function

1. When in PC source, press the MENU button to display
the OSD main menu.

2. Press ◄ or ► to select the “PICTURE” menu.

3. Press ▲ or ▼ to select your desired controls, and press
◄ or ► to adjust.

4. For advanced PC functions, select “Advanced” (only

in PC source) and press ► to enter.

5. Press ▲ or ▼ to select “Auto” (Auto adjustment),

“H-Pos” (H-Position), “V-Pos” (V-Position), “Clock”

or “Phase”, and adjust the level with ◄ or ►.

＊When in PC source, the other menus are the same as or

similar to when in other source.

＊When there is no signal in the PC mode, “No Signal” will

be displayed on the screen and the TV will automatically
turn into power-saving mode after a few seconds’ idleness.
Press INPUT or POWER button on the remote control
and the TV will return to VGA mode.

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Using the TV Features

Using USB Function

1. After a USB device is inserted into the USB jack, the screen will automatically jump to the
USB mode selection screen.

2. The default modes are: MOVIE, PHOTO, E-BOOK, FILE, and SETUP. Press ◄ or ► keys

on the remote control to switch between different modes, and press ENTER to enter the
selected mode.

3. Use ▲ or ▼ to move the cursor up and down, ◄ to return to previous level, ► to enter next

level. Press EXIT or MENU will return to the top level menu screen.

4. When the le you wish to play is selected, press ENTER to play.

※You can also use the buttons on the TV panel to make selection. The panel buttons function

the same as the following keys on the remote control:

VOL - : ◄
VOL + : ◄
MENU : MENU/EXIT
CH - : ▼
CH + : ▲
INPUT : ENTER

＊Press the CH - and INPUT keys together at the same time will change the input source

from USB mode to TV mode.

ENGLISH

MOVIE mode: Select the Movie icon to get to the Movie Preview screen. All the movie

les will be listed in the playlist at the left of the screen. The right side of the screen will start
playing the selected movie. Use arrow keys to navigate between the movie les, and you can

preview the movie in the window on the right side of the screen.

＊When playing the movie in the preview screen, audio will be muted.

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ENGLISH

Using the TV Features

Press ENTER to play the movie. Press ENTER again and the info bar at the bottom of the
screen will be displayed.

The info bar includes some quick launch buttons:

Item Function Description

I

►/

►

◄

II

I

Preivous

Play/Pause

Next

Stop/Back

Play the previous movie in the playlist.
Stop the movie from playing. Press again to play.
Play the next movie in the playlist.
Stop the movie playing and go back to the Movie Preview

screen.

PHOTO mode: Photo thumbnails will be displayed in this folder. Use arrow keys to select a
photo.

＊The photo will not be displayed if it is not supported by this TV. Instead, the photo

thumbnail will be replaced by the “ ” icon.

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Using the TV Features

Press ENTER to display it (pause mode). Press ENTER again to display the info bar at the
bottom of the screen.

The info bar includes some quick launch buttons:

Item Function Description

ENGLISH

I

►/

◄

II

Preivous

Play/Pause

Display previous photo.
Change to slideshow mode. Press again to keep in pause

mode.

►

I

Next

Rotate

Stop/Back

Zoom

Display next photo.

Rotate the current photo. 90° → 180° → 270° → 0° (normal).

Return to photo thumbnail screen.

→

Zoom in the current photo. Rate is x2

→

x1 (normal).

x4 → x8 → x16

E-BOOK mode: Select the .txt le in the E-BOOK you’d like to read, and press ENTER to
display it. To display next page of the .txt le, press ▼.

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ENGLISH

Using the TV Features

FILE mode: The le mode is designed for you to examine the content of the storage device,
performance le manipulation and rmware upgrade.

Press ENTER on the folder to enter into the subfolder. Press ENTER on the file to start

playback of the le.

＊All les of MOVIE, PHOTO, and E-BOOK can be found in FILE mode.
＊In USB mode, les with le name in Chinese will not be supported.

SETUP mode: The screen is designed for basic configuration of the system. In SETUP

menu screen, press ▲ or ▼ to select the items, and press ◄ or ► to switch the options for

selected item. Press ENTER to conrm the change. In Setup menu, you can select Language,
Slideshow duration, Slideshow mode, and Movie repeat mode. If you select Autorun to “On”,
and turn off and on the power again, then the TV will display the photo in slideshow mode
automatically. To stop and return to USB mode selection screen, press MENU key at anytime.
To return to factory default settings, select “Default” and press ENTER.

＊To adjust the setting of Contrast, Brightness, Sharpness, Tint, or Color in USB source,

switch to YPbPr source and adjust in PICTURE Menu.

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Other Information

Cleaning the LCD TV

• Make sure the LCD TV is turned off.

• Never spray or pour any liquid directly onto the screen or case.

To clean the screen:

1. Wipe the screen with a clean, soft, lint-free cloth. This removes dust and other particles.

2. If still not clean, apply a small amount of non-ammonia, non-alcohol based glass cleaner onto a clean, soft,
lint-free cloth, and wipe the screen.

To clean the case:

1. Use a soft, dry cloth.

2. If still not clean, apply a small amount of a non-ammonia, non-alcohol based, mild non-abrasive detergent
onto a clean, soft, lint-free cloth, then wipe the surface.

Disclaimer

ViewSonicTM does not recommend the use of any ammonia or alcohol-based cleaners on the LCD TV screen or
case. Some chemical cleaners have been reported to damage the screen and/or case of the LCD TV. ViewSonic
will not be liable for damage resulting from use of any ammonia or alcohol-based cleaners.

ENGLISH

Programming your Cable or Satellite Box remote

Refer the user manual from your service provider to determine the setting.

If it requires:

• 3 digits, please try “566”, “565”, “556”, or “688”. It usually works with DISHNetwork.

• 4 digits, please try “0054”. It usually works with Cox.

• 5-digits, please try “11454”, “11054”, or “10690”. It usually works with DIRECTV.

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ENGLISH

Other Information

Troubleshooting

Please contact ViewSonic service team directly if you have questions, service needs, or
require technical assistance related on the use of your television.

Contact ViewSonic Service Team at:
http://www.ViewSonic.com
Or call our service team:
United States 1-800-688-6688
Canada 1-866-463-4775

Problem Possible Solution

No power • Make sure the power cord is properly connected to the

LCD TV AC power socket.

• Make sure the AC power cord is properly connected to the

wall outlet.

• Make sure the DC power button is ON (Blue LED).

• Plug another electrical device (like a radio) to the power

outlet to verify that the outlet is supplying the proper voltage.

No picture • The TV station may be experiencing problems. Try another

channel.

• The Cable TV signal may be scrambled or encoded. Please

contact your local cable operator.

• Make sure that connection to other components are correct

referring to the user guide.

• Make sure that setup has been done correctly after

connections.

• Make sure the correct input is selected and the input signal is

compatible.

Strange color, light color,
or color misalignment

No sound • Check your audio connections are properly connected

• Ensure that the video cable is securely connected.

• The picture may appear dim in a brightly lit room.

• Adjust brightness, contrast, saturation (color), and tint

referring to the user guide.

• Check the input signal setting.

referring to the user guide.

• The MUTE button may have been pressed, try pressing this

button again.

• Check your audio settings, your TV audio may be set to

minimum.

• Press the Volume + (Up) button on the remote control.

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Other Information

Problem Possible Solution

Remote control unit does
not operate

• Make sure the directions of batteries are inserted correctly

referring to the user guide.

• Batteries could be weak or dead. Replace with new batteries.

• Is a uorescent light illuminated near the remote control

sensor?

• The path of the remote control beam may be blocked. Make

sure the path is clear and that the remote control is aimed at
the remote control sensor on the TV.

• Press the POWER button on the remote control to see if you

can turn on the TV.

• Press MENU button on the remote control to see if there is a

MENU shown on the screen.

• Press only one button at a time and it is the correct one for

the operation you want to perform.

Unit cannot be operated • External inuences such as lightning or static electricity may

cause improper operation. In this case, operate the unit after

rst turning on the power of the LCD TV and the AVC

System, or unplug the AC cord for 1 to 2 minutes, then
replug again.

Power is cut off suddenly • Is the sleep timer set in advance?

• Is there no signal in PC mode or HDMI mode?

• The internal temperature of the unit has increased. Remove

any objects blocking the vent or clean as necessary.

ENGLISH

No CATV reception (or no
reception above CH13)

Picture is cut off/with
sidebar screen

• Is the AIR/CABLE option set correctly? Please set the AIR/

CABLE option to CABLE referring to the user guide.

• CATV is connected improperly or not connected; please

check all the CATV connections.

• The cable TV service is interrupted; please contact your

cable operator.

• Is the image positioned correctly?

• Are screen mode adjustments such as picture size set

correctly?

• Press ZOOM button repeatedly on the remote control to see

if you can get the picture you prefer.

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ViewSonic VTMS2431

43

Other Information

Specications

Model VTMS2431

ENGLISH

LCD

Input signal

Compatibility

Resolution

Speaker Output

Type 23.6” TFT Active Matrix RGB

0.2715 (H) x 0.2715 (V) mm pixel

Color Filter
Glass surface

RGB

RF

Video

Audio 1 mini-stereo,

PC Up to 1920 x 1080 @ 60 Hz, VGA mode

Recommended
and supported
(VGA mode)

RGB vertical stripe
Anti-Glare

RGB analog (0.7/1.0 Vp-p, 75 ohms) Separate Sync,
fh: 30-80 kHz, fv:50-75 Hz
TV system Antenna / NTSC+ATSC, TV cable system /
CATV+Digital cable
1 composite RCA, 1 S-Video, 1 YPbPr component, 1 HDMI,
1 USB, 1 RS232

2 pair of RCA (L/R) stereo

1920 x 1080 @ 60 Hz
1680 x 1050 @ 60 Hz
1440 x 900 @ 60 Hz
1280 x 1024 @ 60 Hz
1024 x 768 @ 60, 75 Hz
800 x 600 @ 60, 75 Hz
640 x 480 @ 60, 75 Hz

5W x 2 @ THD=10%

Audio Output

Power

Display area

Operating
conditions

Storage
condition

Dimensions

Weight

Regulations

Power
consumption

Warning: Do not set the graphics card in your computer to exceed these refresh rates; doing so may result in

permanent damage to the LCD TV.

Note: Product Specications are subject to change without notice.

Voltage 100-240 VAC, 50/60 Hz (auto switch)

Full Scan 521.28mm (H) x 293.22mm (V)

Temperature
Humanity
Altitude

Temperature
Humanity
Altitude

Physical
(W) x (H) x (D)

Net 7.0 kg (15.4 lb)

On
Stand by

1 Headphone jack

20.5” (H) x 11.5” (V)

32°F to + 104°F ( 0°C to + 40°C)
10% to 65% (no condensation)
To 10,000 feet (3,000m)

-4°F to + 140°F (-20°C to + 60°C)
0% to 90% (no condensation)
To 40,000 feet (12,000m)

566.7mm x 441.9mm x 211.0mm

22.3’’ x 17.4’’ x 8.3’’

UL/cUL, FCC-B (Doc-B), NOM, BETS-7, E

< 75 W [Max] (blue LED)
< 1 W @ 115 Vac only (orange LED)

NERGY STAR

®

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Other Information

RS232 Protocol

1. Introduction

This document describes the hardware interface spec and software protocols of RS232
interface communication between Viewsonic Commercial Display and PC or other control
unit with RS232 protocol.
The protocol divide into three sections:

• Set-Function

• Get-Function

• Remote control pass-through mode

※

In below document, “PC” will represents all the control units that can sent or receive the
RS232 protocol command.

2. Description

2.1 Hardware specication

Viewsonic LCD communication port in the rear side
(1) Connector type: DSUB 9 Pin Male
(2) Pin Assignment

ENGLISH

Male DSUB 9Pin

(outside view)

1 2 3 4 5

6 7 8 9

* Use of crossover (null modem) cable required for use

2.2 Communication Setting

• Baud Rate Select: 9600bps (xed)

• Data bits: 8bits (xed)

• Parity: None (xed)

• Stop Bits: 1 (xed)

Pin # Signal Remark

1 NC
2 RXD Input to LCD Monitor
3 TXD Output from LCD Monitor
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
frame GND

with PC.

2.3 Command Message Reference

PC sends to Monitor command packet followed by “CR”. Every time PC sends control
command to the Monitor, the Monitor shall response as follows:

1. If the message is receives correctly it will send “+” (02Bh) followed by “CR” (00Dh)

2. If the message is receives incorrectly it will send “-” (02Dh) followed by “CR” (00Dh)

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ENGLISH

Other Information

3. Command Description

Length Total Byte of Message excluding “CR”
TV ID Identication for each of TV

Command Type Identify command type,

“s” (0x73h) : Set Command
“g” (0x67h) : Get Command
“r” (0x72h) : Reply Command
“p” (0x70h) : RCU Pass-through
“+” (0x2Bh) : Valid command Reply
“-” (0x2Dh) : Invalid command Reply

Command Function command code: One byte ASCII code
Value[1~3] Three bytes ASCII that denes the value
CR 0x0D

4. Set-Function Listing

The PC can control the LCD Monitor for specific actions. The Set-Function command
allows you to control the LCD monitor behavior in a remote sit through the RS232 port.
The Set-Function packet format consists of 11 bytes.

Set-Function description:

Length Total Byte of Message excluding “CR”
TV ID Identication for each of TV. The TV ID doesn’t be supported by

HDTV “power on” command.
If we want to set all TV settings, TV ID can use “99” to achieve, and it
will not have Reply command on this function.

Command Type Identify command type,

“s” (0x73h) : Set Command
Command Function command code: One byte ASCII code
Value[1~3] Three bytes ASCII that denes the value
CR 0x0D

Set-Function format:
Send (Command Type= “s”)

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7 8 9

Command Value1 Value2 Value3 CR

(Command Type= “s”, Only for HDTV power on)

Name Length Command

Type
Byte Count 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3 4 5 6 7

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Command Value1 Value2 Value3 CR

46

Other Information

Reply (Command Type= “+” or “-”)

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5

CR

(Command Type= “+” or “-”, Only for HDTV power on)

Name Length Command

Type
Byte Count 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3

CR

Example1: Set HDTV power on and this command is valid.
Send (Hex Format)

Name Length Command

Type
Hex

0x36 0x73 0x21 0x30 0x30 0x31 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length Command

Type

CR

ENGLISH

Hex

0x32 0x2B 0x0D

Example2: Set Brightness as 76 for TV-02 and this command is valid.
Send (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x32

0x73 0x24 0x30 0x37 0x36 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x34 0x30

0x32

0x2B 0x0D

CR

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Other Information

Example3: Set Brightness as 76 for TV-02 and this command is NOT valid.
Send (Hex Format)

ENGLISH

Name Length ID Command

Type

Hex

0x38 0x30

0x32

0x73 0x24 0x30 0x37 0x36 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x34 0x30

0x32

0x2D 0x0D

CR

Example4: Set Tint as -32 for TV-03 and this command is valid.
Send (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x33

0x73 0x27 0x2D 0x33 0x32 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

CR

Hex

0x34 0x30

0x33

0x2B 0x0D

Example5: Set Tint as -75 for TV-03 and this command is NOT valid.
Send (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x33

0x73 0x27 0x2D 0x37 0x35 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x34 0x30

0x33

0x2B 0x0D

CR

Example6: Set Brightness as 76 for all TV and this command is valid.
Send (Hex Format)

Name Length ID Command

Type

Command Value1 Value2 Value3 CR

Hex

0x38 0x39

0x39

0x73 0x24 0x30 0x37 0x36 0x0D

No Reply..

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Other Information

Table 4-1: PC Set-function command to LCD Monitor (ID=C0h)

Set Function Command

Code

(ASCII)

HDTV Power

Input Select

Contrast
Brightness
Sharpness
Color
Tint

Color Mode

Surround

Bass
Treble
Balance

OSD Language

``

#

%

&

Command

Code

(Hex)

!

$

`

)

-

.
/

0
2

21 000: STBY

22 000: TV

23 000 ~ 100
24 000 ~ 100
25 000 ~ 100
26 000 ~ 100
27 -50 ~ +50

29 000: STD

2D 000: OFF

2E 000 ~ 100 Sets Bass value
2F 000 ~ 100 Sets Treble value
30 000 ~ 100 Sets Balance position

32 000: English

Value Range

(Three ASCII

bytes)

001: ON

001: AV
002: SV
003: YPBPR
004: HDMI
005: VGA
006: DPF

001: WARM
002: COLD

001: ON

001: Francias
002: Spanish

Comments

Controlled the HDTV power status:
ON or Standby

ENGLISH

Power Lock

Volume
Mute

Button Lock

TV Channel
Menu Lock

Number
Key Pad

Remote Control

Restore To Default

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4

5
6

8

=
>

@

A

B

~

34 000: Unlock

001: Lock
35 000 ~ 100
36 000: OFF

001: ON (mute)
38 000 : Unlock

001 : Lock

3D 000 ~ 999

3E 000: Unlock

001: Lock
40 000 ~ 009
41 000: UP

001: DOWN

002: LEFT

003: RIGHT

004: ENTER

005: INPUT

006: MENU/EXIT
42 000: DISABLE

001: ENABLE
7E 000 Rests HDTV to factory setting

Disable: RCU has no effect on HDTV.
Enabled: RCU controls the HDTV.

ViewSonic VTMS2431

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ENGLISH

Getting Started

5. Get-Function Listing

The PC can interrogate the LCD Monitor for specific information. The Get-Function
packet format consists of 5 bytes which is similar to the Set-Function packet structure.
Note that the “Value” byte is always = 00.

Get-Function description:

Length Total Byte of Message excluding “CR”
TV ID Identication for each of TV. The TV ID doesn’t be supported by

HDTV power status on standby.

Command Type Identify command type,

“g” (0x67h) : Get Command
Command Function command code: One byte ASCII code
Value[1~3] Three bytes ASCII that denes the value
CR 0x0D

Get-Function format:
Send (Command Type= “g”)

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7 8 9

Command Value1 Value2 Value3 CR

(Command Type= “g”, Only for HDTV power status on standby)

Name Length Command

Type
Byte Count 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3 4 5 6 7

Command Value1 Value2 Value3 CR

Reply: (Command Type= “r” or “-”)

If the Command is valid, Command Type = “r”

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7 8 9

Command Value1 Value2 Value3 CR

If the Command is valid, Command Type = “r”, Only for HDTV power status on standby.

Name Length Command

Type

Command Value1 Value2 Value3 CR

Byte Count 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3 4 5 6 7

If the Command is Not valid, Command Type= “-”

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5

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CR

50

Other Information

If the Command is Not valid, Command Type= “-”, Only for HDTV power status on
standby.

Name Length Command

Type
Byte Count 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3

CR

Example1: Get power status on standby and this command is valid.
Send (Hex Format)

Name Length Command

Type
Hex

0x36 0x67 0x6C 0x30 0x30 0x30 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length Command

Type
Hex

0x36 0x72 0x6C 0x30 0x30 0x30 0x0D

Command Value1 Value2 Value3 CR

Example2: Get Brightness from TV-05 and this command is valid.
The Brightness value is 67.
Send (Hex Format)

Name Length ID Command

Type

Command Value1 Value2 Value3 CR

ENGLISH

Hex

0x38 0x30

0x35

0x67 0x62 0x30 0x30 0x30 0x0D

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x35

0x72 0x62 0x30 0x36 0x37 0x0D

Command Value1 Value2 Value3 CR

Example3: Get Brightness from TV-05 , but the Brightness command ID is error
and it is NOT in the command table.
Send (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x35

0x67 0xD3 0x30 0x30 0x30 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

CR

Hex

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0x34 0x30

0x35

ViewSonic VTMS2431

0x2D 0x0D

51

Other Information

Example4: Get Tint from TV-0007 and this command is valid.
The Tint value is +32.
Send (Hex Format)

ENGLISH

Name Length ID Command

Type

Hex

0x38 0x30

0x37

0x67 0x65 0x30 0x30 0x30 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x37

0x72 0x65 0x2B 0x33 0x32 0x0D

Command Value1 Value2 Value3 CR

Example5: Get Tint from TV-07 , but the Brightness command ID is error and it is
NOT in the command table.
Send (Hex Format)

Name Length ID Command

Type

Hex

0x38 0x30

0x37

0x67 0xD7 0x30 0x30 0x30 0x0D

Command Value1 Value2 Value3 CR

Reply (Hex Format)

Name Length ID Command

Type

Hex

0x34 0x30

0x37

0x2D 0x0D

CR

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Other Information

§ Table 5-1 outlines the Get-function command list that must be supported by the LCD
Monitor.

Table 5-1: PC Get-function command to LCD Monitor

Get Function Command

Code

(ASCII)

Get-Contrast a 61 000 ~ 100 Gets Contrast value
Get-Brightness b 62 000 ~ 100 Gets Brightness value
Get-Sharpness c 63 000 ~ 100 Gets Sharpness value
Get-Color d 64 000 ~ 100 Gets Color value
Get-Tint e 65 -50 ~ +50 Gets Tint value
Get-Volume f 66 000 ~ 100 Gets Volume value

Get-Mute g 67 000: OFF (unmuted)

Get-Input select j 6A 000: TV

Get-Power status l 6C 000: STBY

Command

Code

(Hex)

Response Range

(Three ASCII

bytes)

001: ON (muted)

001: AV
002: SV
003: YPBPR
004: HDMI
005: VGA
006: DPF

001: ON

Comments

Gets Mute ON/OFF status

Gets Input select status

Gets the status of the HDTV power.
HDTV response:
000 = HDTV is in standby
001 = HDTV is ON

ENGLISH

Get-Remote
Control

Get-Power Lock o 6F 000: Unlock

Get-Button Lock p 70 000: Unlock

Get-Menu Lock q 71 000: Unlock

Get-ACK z 7A 000 This command is used to test the

n 6E 000: Disable

001: Enable

001: Lock

001: Lock

001: Lock

communication link.

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ENGLISH

Other Information

6. Remote Control Pass-through mode

When PC sets the LCD monitor to Remote Control Pass through mode, the LCD shall send
a three bytes packet (followed by “CR”) in response to RCU button activation. Note, that
in this mode the RCU shall have no effect on the monitor function. For example: “+Volume”
will not change the volume in the LCD but only sends “+Volume” code to PC over the
RS232 port.

RCU Pass-through Command description:

Length Total Byte of Message excluding “CR”
TV ID Identication for each of TV
Command Type Identify command type,

“p” (0x70h) : RCU Pass-through
Value[1~2] Two bytes ASCII that denes the value
CR 0x0D

RCU Pass-through Command Format:
Reply: (Command Type= “p”)

Name Length ID Command

Type
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7

Value1 Value2 CR

Example1: User press “Menu” Key form RCU to TV-03 and RCU data pass-through
to Server, then server will receive “1A”.
Reply (Hex Format)

Name Length ID Command

Type
Hex

0x36 0x30

0x33

0x70 0x31 0x41 0x0D

Value1 Value2 CR

Example2: User press “5” Key form RCU to TV-07 and RCU data pass-through to
Server, then server will receive “05”.
Reply (Hex Format)

Name Length ID Command

Type
Hex

0x36 0x30

0x36

0x70 0x30 0x35 0x0D

Value1 Value2 CR

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Other Information

Table 6-1: Baseline RCU Pass-through codes

Key Code (HEX) Key Code (HEX)

1 01 31
2 02 32
3 03 33
4 04 34
5 05 35
6 06 36
7 07 37
8 08 38
9 09 39
0 0A 3A

0B 3B

RECALL 0C 3C

0D 3D
0E 3E

ZOOM 0F 3F
VOLUME UP (+) ▲ 10 40
VOLUME DOWN (-) ▼ 11 41
MUTE 12 42
CHANNEL/PAGE UP (+) ▲ 13 43
CHANNEL/PAGE DOWN (-) ▼ 14 44

15 45

SOURCES (INPUTS) 16 46

17 47

18 48
SLEEP 19 49
MENU 1A 4A
UP ▲ 1B 4B
DOWN ▼ 1C 4C
LEFT ◄ 1D 4D
RIGHT ► 1E 4E
OK (ENTER) 1F 4F

20 50

21 51

22 52

23 53

24 54

25 55

26 56

27 57

28 58

29 59

2A 5A
2B 5B
2C 5C
2D 5D
2E 5E

2F 5F

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ENGLISH

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ENGLISH

Other Information

Limited Warranty

VIEWSONICTM LCD TV

What the warranty covers:
ViewSonic warrants its products to be free from defects in material and workmanship, under normal use, during the warranty

period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic will at its sole option
repair or replace the product with a like product. Replacement product or parts may include remanufactured or refurbished parts or
components.

How long the warranty is effective:
ViewSonic LCD TV are warranted for one (1) year for all parts excluding the light source and one (1) year for labor from the date of

the rst customer purchase.

Who the warranty protects:

This warranty is valid only for the rst consumer purchaser.

What the warranty does not cover:

1. Any product on which the serial number has been defaced, modied or removed.

2. Damage, deterioration or malfunction resulting from:

a. Accident, misuse, neglect, re, water, lightning, or other acts of nature, unauthorized product modication, or failure to

follow instructions supplied with the product.

b. Repair or attempted repair by anyone not authorized by ViewSonic.
c. Any damage of the product due to shipment.
d. Removal or installation of the product.
e. Causes external to the product, such as electric power uctuations or failure.
f. Use of supplies or parts not meeting ViewSonic’s specications.
g. Normal wear and tear.
h. Any other cause which does not relate to a product defect.

3. Any product exhibiting a condition commonly known as “image burn-in” which results when a static image is displayed on the

product for an extended period of time.

4. Removal, installation, and set-up service charges.

5. When you mount it on the wall, the following must be noticed:

a. The accessories attached with this product are applicable for this product only.
b. When the product is mounted on the wall, holes and xed screws will remain in the wall body.
c. Wall face may discolor when this product has been mounted on the wall for a long time.

How to get service:

1. For information about receiving service under warranty, contact ViewSonic Customer Support. You will need to provide your

product’s serial number.

2. To obtain warranted service, you will be required to provide (a) the original dated sales slip, (b) your name, (c) your address, (d)

a description of the problem, and (e) the serial number of the product.

3. Take or ship the product freight prepaid in the original container to an authorized ViewSonic service center or ViewSonic.

4. For additional information or the name of the nearest ViewSonic service center, contact ViewSonic.
Limitation of implied warranties:

There are no warranties, express or implied, which extend beyond the description contained herein including the implied warranty of

merchantability and tness for a particular purpose.

Exclusion of damages:

ViewSonic’s liability is limited to the cost of repair or replacement of the product. ViewSonic shall not be liable for:

1. Damage to other property caused by any defects in the product, damages based upon inconvenience, loss of use of the product,

loss of time, loss of prots, loss of business opportunity, loss of goodwill, interference with business relationships, or other

commercial loss, even if advised of the possibility of such damages.

2. Any other damages, whether incidental, consequential or otherwise.

3. Any claim against the customer by any other party.
Effect of state law:

This warranty gives you specic legal rights, and you may also have other rights which vary from state to state. Some states do

not allow limitations on implied warranties and/or do not allow the exclusion of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.

Sales outside the U.S.A. and Canada:

For warranty information and service on ViewSonic products sold outside of the U.S.A. and Canada, contact ViewSonic or your local
ViewSonic dealer.
The warranty period for this product in mainland China (Hong Kong, Macao and Taiwan Excluded) is subject to the terms and
conditions of the Maintenance Guarantee Card.
For users in Europe and Russia, full details of warranty providedcan be found in www.viewsoniceurope.com under Support/Warranty
Information.

4.3: ViewSonic LCD TV Warranty LTV_LW01 Rev. 1C 06-25-07

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ViewSonic VTMS2431

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Other Information

Mexico Limited Warranty

VIEWSONICTM LCD TV

What the warranty covers:
ViewSonic warrants its products to be free from defects in material and workmanship, under normal use, during the warranty

period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic will, at its sole option,
repair or replace the product with a like product. Replacement product or parts may include remanufactured or refurbished parts or
components & accessories.

How long the warranty is effective:
ViewSonic LCD TVs are warranted for 1 year for all parts excluding the light source and 1 year for labor from the date of the rst

customer purchase.

Who the warranty protects:

This warranty is valid only for the rst consumer purchaser.

What the warranty does not cover:

1. Any product on which the serial number has been defaced, modied or removed.

2. Damage, deterioration or malfunction resulting from:

a. Accident, misuse, neglect, re, water, lightning, or other acts of nature, unauthorized product modication, unauthorized

attempted repair, or failure to follow instructions supplied with the product.

b. Any damage of the product due to shipment.
c. Causes external to the product, such as electrical power uctuations or failure.
d. Use of supplies or parts not meeting ViewSonic’s specications.
e. Normal wear and tear.
f. Any other cause which does not relate to a product defect.

3. Any product exhibiting a condition commonly known as “image burn-in” which results when a static image is displayed on the
product for an extended period of time.

4. Removal, installation, insurance, and set-up service charges.

How to get service:

For information about receiving service under warranty, contact ViewSonic Customer Support (Please refer to the attached Customer
Support page). You will need to provide your product’s serial number, so please record the product information in the space provided
below on your purchase for your future use. Please retain your receipt of proof of purchase to support your warranty claim.
For Your Records
Product Name: ____________________________ Model Number: _______________________________
Document Number: ________________________ Serial Number: ________________________________
Purchase Date: ____________________________ Extended Warranty Purchase? ________________(Y/N)
If so, what date does warranty expire? ______________

1. To obtain warranty service, you will be required to provide (a) the original dated sales slip, (b) your name, (c) your
address, (d) a description of the problem, and (e) the serial number of the product.

2. Take or ship the product in the original container packaging to an authorized ViewSonic service center.

3. Round trip transportation costs for in-warranty products will be paid by ViewSonic.

Limitation of implied warranties:

There are no warranties, express or implied, which extend beyond the description contained herein including the implied warranty of

merchantability and tness for a particular purpose.

Exclusion of damages:

ViewSonic’s liability is limited to the cost of repair or replacement of the product. ViewSonic shall not be liable for:

1. Damage to other property caused by any defects in the product, damages based upon inconvenience, loss of use of the

product, loss of time, loss of prots, loss of business opportunity, loss of goodwill, interference with business

relationships, or other commercial loss, even if advised of the possibility of such damages.

2. Any other damages, whether incidental, consequential or otherwise.

3. Any claim against the customer by any other party.

4. Repair or attempted repair by anyone not authorized by ViewSonic.

ENGLISH

Contact ViewSonic service team at: http://www.ViewSonic.com or call our service team: United States 1-800-688-6688, Canada 1-866-463-4775

ViewSonic VTMS2431

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ViewSonic

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