ViewSonic Computer Monitor VT550 User Manual

VT550 LCD Display  
User Guide  
Guide de l’utilisateur  
Bedienungsanleitung  
Guía del usuario  
Guida dell’utente  
Guia do Usuário  
Användarhandbok  
Käyttöopas  
PodrĊcznik uĪytkownika  
Full 15" Diagonal Viewable Screen  
 
Copyright © ViewSonic Corporation, 2002. All rights reserved.  
Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc.  
Microsoft, Windows, Windows NT, and the Windows logo are registered trademarks of Microsoft  
Corporation in the United States and other countries.  
ViewSonic, the three birds logo, OnView, ViewMatch, and ViewMeter are registered trademarks of  
ViewSonic Corporation.  
VESA is a registered trademark of the Video Electronics Standards Association. DPMS and DDC  
are trademarks of VESA.  
®
ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency (EPA).  
®
As an ENERGY STAR partner, ViewSonic Corporation has determined that this product meets the  
®
ENERGY STAR guidelines for energy efficiency.  
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 mate-  
rial, or the performance or use of this product.  
In the interest of continuing product improvement, ViewSonic Corporation reserves the right to  
change product specifications without notice. Information in this document may change without  
notice.  
No part of this document may be copied, reproduced, or transmitted by any means, for any purpose  
without prior written permission from ViewSonic Corporation.  
Product Registration  
To meet your future needs, and to receive any additional product information as it becomes available,  
please register your product on the Internet at: www.viewsonic.com. The ViewSonic® Wizard CD-  
ROM also provides an opportunity for you to print the registration form, which you may mail or fax  
to ViewSonic.  
For Your Records  
Product Name:  
Model Number:  
Document Number:  
Serial Number:  
Purchase Date:  
ViewSonic VT550  
VLCDS23897-3W  
A-CD-VT550-1  
______________  
______________  
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.  
ViewSonic  
VT550  
2
 
Getting Started  
Congratulations on your purchase of a ViewSonic® LCD display.  
Important!  
avetheoriginalboxandallpackingmaterialorutureshippingneeds.  
The word “Windows” in this user guide refers to the following Microsoft  
NOTE:  
operating systems: Windows ‘95, Windows NT, Windows ‘98, Windows 2000,  
Windows Me (Millennium), and Windows XP.  
Package Contents  
Your LCD display package includes:  
• LCD display  
• Power cords  
• Video cables (VGA and DVI)  
• Audio cable (stereo mini jack)  
• Microphone cable  
• AC/DC adapter  
• ViewSonic Wizard CD-ROM  
The CD jacket contains the Quick Start Guide, and the CD includes the  
NOTE:  
User Guide PDF files and INF/ICM display optimization files. The INF file  
ensures compatibility with Windows operating systems, and the ICM file (Image  
Color Matching) ensures accurate on-screen colors. ViewSonicrecommends that  
you install both files.  
Precautions  
• Sit at least 18" from your LCD display.  
• Place your LCD display in a well-ventilated  
area. Do not place anything on your LCD  
display that prevents heat dissipation.  
Avoid touching the screen. Skin oils are  
difficult to remove.  
• Ensure the area around the LCD display is  
clean and free of moisture.  
Never remove the rear cover. Your LCD  
display contains high-voltage parts. You may  
be seriously injured if you touch them.  
• Do not place heavy objects on the LCD  
display, video cable, or power cord.  
• Avoid exposing your LCD display to direct  
sunlight or another heat source. Orient your  
LCD display away from direct sunlight to  
reduce glare.  
• If smoke, abnormal noise, or strange odor is  
present, immediately switch the LCD display  
off and call your dealer or ViewSonic. It is  
dangerous to continue using the LCD display.  
• Always handle your LCD display with care  
when moving it.  
ViewSonic  
VT550  
3
 
Quick Installation  
1 Remove two rear panel covers  
5 Wizard CD (continued)  
(2) Follow the on-screen instructions.  
2 Connect power cord and AC/DC  
adapter  
3 Connect video cable  
6 Audio Installation (optional)  
Speakers Connect the audio cable (lime-colored) to  
the AUDIO OUT port of your computer’s sound  
card, then to the LCD display’s AUDIO IN port  
(see illustration below).  
• Make sure both the LCD display and  
computer are turned OFF  
• Connect the video cable from the LCD  
display to the computer  
Microphone Connect the microphone cable (pink-  
colored to the MIC IN port of your computer’s  
sound card, then to the LCD display’s MIC OUT  
Macintoshusers:Models older than G3  
port. Plug an external microphone into the MIC IN  
require a Macintosh adapter. Attach the  
adapter to the computer and plug the video  
cable into the adapter.  
To order a ViewSonic® Macintosh adapter,  
jack on the back of the LCD display. (See  
illustration below.)  
Headphones Plug headphones into the headphone  
jack shown below.  
7 Windows users: Set the timing  
contact ViewSonic Customerupport.  
mode (resolution and refresh  
4 Turn ON LCD display and  
rate)  
computer  
Example:1024 x 768 @ 60 Hz.  
Turn ON the LCD display, then turn ON the  
computer. This sequence (LCD display  
before computer) is important.  
For instructions on changing the resolution  
and refresh rate, see the graphic card’s user  
guide.  
NOTE: Windows users may receive a  
message asking them to install the INF file.  
This is on the CD.  
Installation is complete. Enjoy your new  
ViewSonic LCD display.  
To be best prepared for any future customer  
5 Insert the ViewSonic Wizard CD  
into the computer’s CD drive.  
service needs: print this user guide and write  
the serial number in ForYourRecordson  
page 2. (See back of LCD display.)  
Follow the on-screen instructions  
If your computer does not have a CD-ROM  
drive, see “Customer Support.”  
You can register your product online at the  
website for your region. See the Customer  
Support table in this guide.  
(1) Wait for the CD-ROM to auto-start.  
The ViewSonic Wizard CD-ROM also  
provides an opportunity for you to print the  
registration form which you may mail or fax  
to ViewSonic.  
NOTE: If the CD-ROM does not auto-start:  
double-click on the CD-ROM icon in the  
Windows Explorer, then double-click on  
viewsonic.exe.  
DVI video IN (digital)  
VGA video IN (analog)  
Power IN  
Audio IN  
Headphone IN jack  
Kensington  
lock  
Rear panel covers  
MIC OUT (pink)  
Computer  
power  
cord  
External MIC IN (white)  
AC outlet (wall socket)  
Power cord and AC/DC adapter  
ViewSonic  
VT550  
4
 
Installation of Wall Mount (Optional)  
To obtain a wall-mounting kit, contact ViewSonic or your local dealer. Refer to  
the instructions that come with the base mounting kit. To convert your LCD  
display from a desk-mounted to a wall-mounted display, do the following:  
Four screw holes with  
rubber filler  
Disconnect Power.  
1
Lay the LCD display face down  
on a towel or blanket. If you  
remove the base for a wall mount,  
the microphone in the base is  
disconnected. But, you can leave  
the base attached to the LCD  
display with the wall mount.  
Notice the four screw holes for  
the wall mount on the back as  
shown on the left. Remove the  
rubber filler from each screw  
hole.  
2
Attach the mounting bracket  
from the VESA compatible wall-  
mounting kit (75 mm x 75 mm  
distance).  
3
4
Attach the LCD display to the  
wall, following the instructions in  
the wall-mounting kit.  
ViewSonic  
VT550  
5
 
Using the LCD Display  
Setting the Timing Mode  
Setting the timing mode is important for maximizing the quality of the  
screen image and minimizing eye strain. The timing mode consists of the  
resolution (example 1024 x 768) and refresh rate (or vertical frequency;  
example 75 Hz). After setting the timing mode, use the OnView® controls  
to adjust the screen image.  
For the best picture quality set your LCD display timing mode to:  
VESA 1024 x 768 @ 60Hz.  
To set the Timing Mode:  
1 Set the resolution: Right-click on the Windows desktop > Properties >  
Settings > set the resolution.  
2 Set the refresh rate: See your graphic card's user guide for instructions.  
WARNING: Do not set the graphics card in your computer to exceed the  
maximum refresh rate of 75Hz; doing so may result in permanent damage to  
your LCD display.  
OSD and Power Lock Settings  
You can lock the On Screen Displays (OSDs) and/or the power button to prevent  
unwanted changes to the current image settings.  
OSD LOCK: Press and hold the [1] and [] buttons on the face of the  
monitor for 10 seconds. The message ODLOCKwill then display briefly  
indicating that the OSD image settings are now locked.  
OSD UNLOCK: Press and hold the [1] and [] buttons again for 10  
seconds. The message ODUNLOCKwill then display briefly indicating  
that the OSD image settings are now unlocked.  
POWER BUTTON LOCK: Press and hold [1] and the down arrow for 10  
seconds. If the power button is pressed the message owerButtonLocked  
will display for 5 seconds. With or without this setting, after a power failure,  
your LCD display’s power will automatically turn ON when power is  
restored.  
POWER BUTTON UNLOCK: Press and hold [1] and the down arrow ▼  
again for 10 seconds.  
ViewSonic  
VT550  
6
 
Adjusting the Screen Image  
Use the buttons on the front control panel to display and adjust the OnView®  
controls which display on the screen. The OnView controls are explained at the  
top of the next page and are defined in “Main Menu Controls” on page 9.  
Main Menu  
With OnView controls  
Front Control Panel  
shown below in detail  
Speaker  
Speaker  
Scrolls through menu options and  
adjusts the displayed control.  
Microphone  
Also a shortcut to display the  
Contrast adjustment control  
screen.  
Displays the Main Menu  
or exits the control screen  
and saves adjustments  
Displays the control  
screen for the highlighted  
control.  
Shortcut key: toggles  
between two controls on  
some screens: i.e.  
Contrast/Brightness.  
Shortcut key: toggles  
between analog (VGA)  
and digital (DVI) video  
connections.  
Decreases or  
increases volume  
Power light  
Green = ON  
Orange = Power  
Saving  
Temporarily silences  
audio output  
Power  
On/Off  
Shortcut key: Toggles between standard and high  
brightness mode for viewing PC data or video.  
ViewSonic  
VT550  
7
 
Do the following to adjust the screen image:  
To display the Main Menu, press button [1].  
1
NOTE: All OnView menus and adjustment screens disappear automatically  
after about 30 seconds.  
To select a control you want to adjust, press or to scroll up or down the  
Main Menu.  
2
After the control is selected, press button [2]. A control screen like the one  
shown below appears.  
3
The line at the  
bottom of the  
screen tells you  
what you can do  
next: Exit or select  
the Brightness  
control.  
The down  
arrow decreases,  
up arrow  
increases  
To adjust the control, press the up or down buttons.  
4
5
To save the adjustments and exit the menu, press button [1] twice.  
The following tips may help you optimize your display:  
• Adjust your computer's graphic card so that it outputs a video signal 1024 x  
768 @ 60 Hz to the LCD display. (Look for instructions on “changing the  
refresh rate” in your graphic card's user guide.)  
• If necessary, make small adjustments using H POSITION and V POSITION  
until the screen image is completely visible. (The black border around the  
edge of the screen should barely touch the illuminated “active area” of the  
LCD display.)  
ViewSonic  
VT550  
8
 
Main Menu Controls  
Adjust the menu items shown below by using the up and down buttons.  
Control Explanation  
automatically sizes, centers, and fine tunes  
Auto Image Adjust  
the video signal to eliminate waviness and distortion.  
Press the [2] button to obtain a sharper image.  
NOTE: Auto Image Adjust works with most common video  
cards. If this function does not work on your LCD display, then  
lower the video refresh rate to 60 Hz and set the resolution to its  
pre-set value.  
adjusts the difference between the image background  
Contrast  
(black level) and the foreground (white level).  
adjusts background black level of the screen image.  
Brightness  
Input Select  
Audio Menu  
toggles between an analog and a digital signal.  
increases or decreases the loudness of the audio output.  
adjusts the proportion of sound coming from each  
Volume  
Balance  
speaker.  
adjusts the low (bass) frequency audio output.  
Bass  
adjusts the high (treble) frequency audio output.  
Treble  
temporarily silences audio output.  
Mute  
ViewSonic  
VT550  
9
 
ation  
djust  
provides several color adjustment modes: preset  
peratures and RGB which allows you to adjust red (R),  
), and blue (B) separately. The factory setting for this  
s 6500K (6500 Kelvin).  
Adds blue to the screen image for cooler white (used  
fice settings with fluorescent lighting).  
Adds red to the screen image for warmer white and  
Adds green to the screen image for a darker color.  
Adds blue and green to the screen image for a darker  
or — Adjusts red (R), green (G), and blue (B)  
y.  
ct color (R, G or B) press button [2].  
st selected color, press or .  
1
2
ImpIf you select RECALL from the Main Menu when  
the pis set to a Preset Timing Mode, colors return to the  
6500K ry preset.  
displays the timing mode (video signal input)  
Information  
coming from the graphics card in your computer. See your  
graphic card’s user guide for instructions on changing the  
resolution and refresh rate (vertical frequency).  
NOTE: VESA 1024 x 768 @ 60 Hz (recommended) means that  
the resolution is 1024 x 768 and the refresh rate is 60 Hertz.  
displays the Manual Image Adjust menu.  
Manual Image Adjust  
The  
controls are explained below:  
Manual Image Adjust  
adjusts tht theht(y)/F1 1 Tf 12.6997 0 0 12.6997 143.3317 492  
Horizontal Size  
Control Explanation  
adjusts the video input signal to the screen size other  
Scaling  
than 1024 x 768 @ 60 Hz using the following options.  
1:1 adjusts the video signal so that the height and width of the  
picture are the same.  
adjusts the video signal to fill the screen.  
Fill all  
maintains the correct video signal proportions  
Fill Aspect Ratio  
for different resolutions.  
displays the menu shown below.  
Setup Menu  
The  
controls are explained below:  
Setup Menu  
allows you to choose the language used in the menus  
Language  
and control screens.  
displays the Resolution Notice menu shown  
Resolution Notice  
below.  
advises the optimal resolution to use.  
Resolution Notice  
allows you to move the on-screen display menus  
OSD Position  
and control screens.  
sets the length of time an on-screen display  
OSD Timeout  
screen is displayed. For example, with a “15 second” setting, if  
a control is not pushed within 15 seconds, the display screen  
disappears.  
allows you to turn the On-Screen-Display  
OSD Background  
background on or off.  
ViewSonic  
VT550  
12  
 
Control Explanation  
Memory Recall  
returns adjustments to the original factory  
settings if the display is operating in a factory Preset Timing  
Mode listed in this user guide.  
Exception: This control does not affect changes made with the  
User Color control.  
ViewSonic  
VT550  
13  
 
Other Information  
Specifications  
Type  
15" (full 15" viewable diagonal area),  
TFT (Thin Film Transistor), Active Matrix XGA LCD,  
0.297 mm pixel pitch  
LCD  
Color Filter  
Glass surface  
RGB vertical stripe  
Anti-Glare  
Video Sync  
RGB analog (0.7/1.0 Vp-p, 75 ohms)  
DVI-D (TMDS, 100 Ohms)  
Composite Sync, Separate Sync, Sync on Green  
fh:30-62 kHz, fv:50-75 Hz  
Input signal  
Multimedia  
Speakers  
2 x 2 watts  
Audio Input  
Microphone  
Headphone  
3.5 mm stereo mini connector  
3.5 mm internal and external  
3.5 mm mini stero connector  
PC  
Up to 1024 x 768 Non-interlaced (NI)  
Power Macintosh up to 1024 x 768  
Compatibility  
Resolution  
Macintosh1  
Recommended and  
supported  
1024 x 768 @ 60, 75 Hz NI  
800 x 600 @ 60, 75 Hz NI  
640 x 480 @ 60, 75 Hz NI  
720 x 400 @ 70 Hz NI  
HDTV support 720p 1280 x 720 @ 60 Hz  
Voltage  
100-240 VAC, 50/60 Hz (auto switch), 12V DC, 3.0A  
Power  
Full Scan  
304.1 mm (H) x 228.1 mm (V)  
12.0" (H) x 9.0" (V)  
Display area  
Temperature  
Humidity  
Altitude  
32° F to + 104° F (0° C to + 40° C)  
10% to 90% (no condensation)  
To 10,000 feet  
Operating  
conditions  
Temperature  
Humidity  
Altitude  
-4° F to + 140° F (-20° C to + 60° C)  
10% to 90% (no condensation)  
To 40,000 feet  
Storage  
conditions  
Physical  
(LCD display only)  
360.0 mm (W) x 139.5 mm (D) x 342.0 mm (H)  
14.7" (W) x 5.5" (D) x 13.5" (H)  
Dimensions  
Net  
4.0 kg (8.8 lb ) LCD display only  
Weight  
UL, FCC-B, c-UL, IC-B, CE, NEMKO, SEMKO, DEMKO,  
FIMKO, TCO’99, PCT (BZ02), TUV/Ergo, BSMI, PSB,  
CCEE, CB Report, ISO 13406-2, TUV/GS, VCCI, PCBC,  
Regulations  
®
TUV-S, EPA, NOM, C-Tick, GOST-R, ENERGY STAR  
On  
Active Off  
Normal (green LED)  
<3W (orange LED)  
Power saving  
modes  
Preset Timing Mode (pre-adjusted to VESA® 1024 x 768 @ 60 Hz)  
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 display.  
1 Macintosh computers older than G3 require a ViewSonic®, Macintosh adapter. To order an adapter,  
contact ViewSonic.  
ViewSonic  
VT550  
14  
 
Troubleshooting  
No power  
• Make sure power button (or switch) is ON.  
• Make sure A/C power cord is securely connected to the DC power supply and  
the power supply is firmly connected to the LCD display.  
• Plug another electrical device (like a radio) into the power outlet to verify that  
the outlet is supplying proper voltage.  
Power is ON but no screen image  
• Make sure the video cable supplied with the LCD display is tightly secured to  
the video output port on the back of the computer. If the other end of the  
video cable is not attached permanently to the LCD display, tightly secure it  
to the LCD display.  
• Adjust brightness and contrast.  
• If you are using an Macintosh older than G3, you need a Macintosh adapter.  
Wrong or abnormal colors  
• If any colors (red, green, or blue) are missing, check the video cable to make  
sure it is securely connected. Loose or broken pins in the cable connector  
could cause an improper connection.  
• Connect the LCD display to another computer.  
• If you have an older graphics card, contact ViewSonic for a non-DDC  
adapter.  
Control buttons do not work  
• Press only one button at a time.  
ViewSonic  
VT550  
15  
 
Customer Support  
For technical support or product service, see the table below or contact your  
reseller.  
You will need the product serial number.  
NOTE:  
Country/  
Region  
Web site  
T = Telephone Email  
F = FAX  
United States  
viewsonic.com/  
support  
T: (800) 688-6688  
service.us@  
F: (909) 468-1202 viewsonic.com  
Canada  
viewsonic.com/  
support  
T: (800) 688-6688  
F: (909) 468-1202 service.ca@  
viewsonic.com  
United Kingdom  
viewsoniceurope.com T: 0800 833 648  
service.eu@  
F: (01293) 643910 viewsoniceurope.com  
Europe, Middle  
East, Baltic  
countries, and  
North Africa  
viewsoniceurope.com Contact your  
reseller  
service.eu@  
viewsoniceurope.com  
Australia and New viewsonic.com.au  
Zealand  
T: +61 2 9929 3955 service.au@  
F: +61 2 9929 8393 viewsonic.com  
Singapore/India  
and Southeast  
Asia  
viewsonic.com.sg  
T: 65 273 4018  
F: 65 273 1566  
service.sg@  
viewsonic.com  
Other Asia/Pacific viewsonic.com.tw  
countries  
T: 886 2 2246 3456 service.ap@  
F: 886 2 8242 3668 viewsonic.com  
South Africa  
viewsonic.com/asia  
T: 886 2 2246 3456 service.ap@  
F: 886 2 8242 3668 viewsonic.com  
ViewSonic  
VT550  
16  
 
Cleaning the LCD Display  
• MAKE SURE THE LCD DISPLAY IS TURNED OFF.  
• NEVER SPRAY OR POUR ANY LIQUID DIRECTLY ONTO THE  
SCREEN OR CASE.  
To clean the screen:  
Wipe the screen with a clean, soft, lint-free cloth. This removes dust and  
other particles.  
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.  
1
2
To clean the case:  
Use a soft, dry cloth.  
1
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  
ViewSonic does not recommend the use of any ammonia or alcohol-based  
cleaners on the LCD display screen or case. Some chemical cleaners have been  
reported to damage the screen and/or case of the LCD display. ViewSonic will not  
be liable for damage resulting from use of any ammonia or alcohol-based cleaners.  
ViewSonic  
VT550  
17  
 
Limited Warranty  
VIEWSONIC LCD DISPLAY  
What the warranty covers:  
ViewSonic warrants its products to be free from defects in material and workmanship 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 displays are warranted for three (3) years for all parts including the light source and  
three (3) years for all labor from the date of the first consumer purchase.  
Who the warranty protects:  
This warranty is valid only for the first consumer purchaser.  
What the warranty does not cover:  
1. Any product on which the serial number has been defaced, modified or removed.  
2. Damage, deterioration or malfunction resulting from:  
a. Accident, misuse, neglect, fire, water, lightning, or other acts of nature, unauthorized product  
modification, 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 electrical power fluctuations or failure.  
f. Use of supplies or parts not meeting ViewSonic’s specifications.  
g. Normal wear and tear.  
h. Any other cause which does not relate to a product defect.  
3. Removal, installation, and set-up service charges.  
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 service under warranty, 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 ser-  
vice 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 FITNESS 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  
PROFITS, 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 specific 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.  
ViewSonic LCD Display Warranty (V3.0)  
Release Date: 01-29-2002  
ViewSonic  
VT550  
18  
 
Appendix  
Safety Guidelines  
Warning: This device must be operated with the original power supply, part number: 12V DC, ADP-50GH B.  
CAUTION: The socket-outlet should be installed near the equipment and should be easily accessible.  
CAUTION: Use a power cable that is properly grounded. Always use the appropriate AC cord that is  
certified for the individual country. Some examples are listed below:  
USA.................UL  
Canada.............CSA  
Germany..........VDE  
Switzerland ..... SEV  
Britain ............. BASE/BS  
Japan ............... Electric Appliance Control Act  
IMPORTANT NOTICE CONCERNING POWER CORD SELECTION  
The power cord set for this unit has been enclosed and has been selected according to the country of des-  
tination and must be used to prevent electric shock. Use the following guidelines if it is necessary to replace  
the original cord set, or if the cord set is not enclosed.  
The female receptacle of the cord set must meet IEC-60320 requirements and may look like (Figure A1  
below):  
For the United States and Canada  
In the United States and Canada the male plug is a NEMA5-15 style (Figure A2), UL Listed, and CSA  
Labeled. For units which are mounted on a desk or table, type SVT or SJT cord sets may be used. For  
units which sit on the floor, only SJT type cord sets may be used. The cord set must be selected according  
to the current rating for your unit. Please consult the table below for the selection criteria for power cords  
used in the United States and Canada.  
Cord Type  
Size of Conductors in Cord  
Maximum Current Rating of Unit  
SJT  
18 AWG  
16 AWG  
14 AWG  
10 Amps  
12 Amps  
12 Amps  
SVT  
18 AWG  
17 AWG  
10 Amps  
12 Amps  
For European Countries  
In Europe you must use a cord set which is appropriate for the receptacles in your country. The cord set is HAR-  
Certified, and a special mark that will appear on the outer sheath, or on the insulation of one of the inner conductors.  
AC PLUG CORD PRECAUTIONS FOR THE UNITED KINGDOM  
FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT CAREFULLY.  
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET THEN THE PLUG SHOULD BE  
CUT OFF AND DISPOSED OF SAFELY.  
THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO AN  
APPROPRIATE SOCKET.  
If a new plug is to be fitted, please observe the wiring code as shown below.  
If in any doubt, please consult a qualified electrician.  
WARNING: THIS APPLIANCE MUST BE EARTHED.  
IMPORTANT: The wires in this mains lead are coloured in accordance with the following code:  
Green-and-Yellow: Earth  
Blue: Neutral  
Brown: Live  
If the coloured wires of the mains lead of this appliance do not correspond with the coloured markings identifying the  
terminals in your plug, proceed as follows:  
The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by  
the letter E or by the Earth symbol or coloured GREEN or GREEN-AND-YELLOW.  
The wire which is coloured BLUE must be connected to the terminal in the plug which is marked with the letter N or  
coloured BLACK. The wire which is coloured BROWN must be connected to the terminal in the plug which is marked  
with the letter L or coloured RED.  
If you have any questions concerning which proper power cord to use, please consult with the dealer from whom you  
have purchased the product.  
ViewSonic  
VT550  
19  
 
Compliance Information for U.S.A.  
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 resi-  
dential 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 interfer-  
ence 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.  
FCC Warning  
To assure continued FCC compliance, the user must use grounded power supply cord and the provided  
shielded video interface cable with bonded ferrite cores. If a BNC cable is going to be used, use only a  
shielded BNC(5) cable. Also, any unauthorized changes or modifications not expressly approved by the  
party responsible for compliance could void the user's authority to operate this device.  
CE Conformity for Europe  
The device complies with the requirements of the EEC directive 89/336/EEC  
as amended by 92/31/EEC and 93/68/EEC Art.5 with regard to “Electromagnetic  
compatibility,” and 73/23/EEC as amended by 93/68/EEC Art.13 with regard  
to “Safety.”  
ViewSonic  
VT550  
20  
 
ViewSonic Corporation  
 

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