NEC MultiSync 20WGX2 Series User manual

SERVICEMANUAL
COLOR MONITOR
MultiSync20WGX2
MODELID :20WGX2-BK(B)
1stEdition
NECDISPLAYSOLUTIONS,LTD.
DECEMBER2005
VERY IMPORTANT!
ThisEquipmentis compatiblewithRoHSDirectiveand Lead-Free.
Since theequipment is compatiblewith RoHSDirective, use components in which theuse
ofspecific chemicallynoxious substances is restricted; use onlydesignated spare parts
when it is necessaryto replace such parts with newparts.
Uselead-freesolder for theequipmentcompatiblewithoneswithsubstrates onwhich
lead-freecomponentsaremounted. Forthe details,referto Caution forLead-FreeSolder-
ingWork”givenin thenext page.
PART NO : 599910796
200603
08GJ5LBG

1. Safety guideline in servicing
1) Never touch the portions with the marking ( ).
Serious injury or even death may result.
2) Do not expose the set to rain or water.
A risk of fire or electric shock can result.
3) Use an adequate power cord.
A risk of fire or electric shock can result.
4) Do not attempt to service or modify the set without prior permission of the manufacturer.
A risk of fire or electric shock can result.
5) Leave the maintenance service to a service engineer having qualification, knowledge and
experience.
A risk of electric shock, injury or fire can result.
6) Always employ genuine parts indicated in the service manual for replacement.
A risk of fire or electric shock can result.
7) In reassembling use the specified binding bands, clampers, tubes and barriers--all of which
are necessary for insulation/protection--in their original positions.
A risk of fire or electric shock can result.
2. Other cautions necessary
1) When removing the cables from their connectors, take care not to damage the wire portions so as to
prevent the occurrence of poor contact.
2) When attaching/detaching screws, use a screwdriver that is well-fit to the screw size.
3. Caution for LEAD-FREE soldering work
For this equipment, parts compatible with lead-free materials are used.
Please observe the following precautions, when performing any soldering work.
1) Use lead-free solder for substrates mounted with lead-free parts.
If you use eutectic solder by mistake, solder will not fuse well because of the difference in fusion point.
2) Fusion Point
Lead-free solder: 220°C
Eutectic solder : 183°C
3) Solder composition of Lead-free solder: Sn-3.0Ag-0.5Cu
[Maker] [Type]
Nihon Genma DHB-RMA NP303-###
Senju metal ESC F3 M705E-###
(#:This mark shows the diameter of the solder wire.)
4) Use without fail a temperature adjustable soldering iron for working with lead-free solder. Moreover,
the power consumption of the soldering iron must use from 25W to 75W.
[Solder Iron tip temperature and contact time]
Category of Parts Lead-free solder Eutectic solder
*SMD Chip The Parts of Chip type 300-320°C
(1-3sec) 260-280°C (1-3sec)
*SMD QFP The Parts (IC) of Quad Flat Pack Package type 320-350°C
(1-3sec) 280-300°C (1-3sec)
Heat sink Heat sink 360-380°C
(1-3sec) 320-420°C (1-3sec)
Ax,RD The Parts of Axial or Radial type (The Electric Parts other than the above-mentioned.
Ex.: IC, Transistor, Resistor, Capacitor)
340-370°C
(1-3sec) 350-390°C (1-3sec)
*SMD: Surface Mounting Device

Specification
Item Analog InputDigital Input
LPLLM201WE2-SLA1
Size20.1"(51.1133cm)
Active Display Area433.44 (H) x270.90 (V) mm
Resolution1680x1050dots (WSXGA+)
Pixel Pitch0.258mm
Color Depth 16,77 M color(8-bits)
Luminance470cd/m2(Typ.) *1)
CR>10 Up 89 / Down 89 / Left 89/ Right 89 (Typ.)
Viewing
Angle(Typ.) CR>5 -
Contrast Ratio 700:1(Typ.)
1600:1 (Typ.) (AdvancedDV mode ON!)
ON+OFF 12ms
Response
Time
GTG6msby overdrive circuit integratedin panel
Color gamut> 72%
Surface TreatmentGlare (AR<2.0%)
LCD
Back LightCCFLx10pcs (Direct Light Type)
Horizontal frequency 24.7kHz -81.2kHz24.7kHz -81.2kHz
Verticalfrequency49.0Hz -76.0 Hz
Video Signal Analog RGBDigital RGB
Sync. Signal Separate Sync.(TTL) Composite
Sync.onGreen video TMDS
Pixel Clock 25.2MHz - 165MHz
InputSignals
Input connector MiniD-sub 15Pin DVI-D
Preset Timings User preset : 23
USBHub(onlyAN/BNBK) USB Version 2.0 Self Powered Hub
1 upstream / 4 down stream
Front Control Menu/Exit, Direction (4 directionkey), Select/1<->2,
Reset/DV mode, Power (DC)
Back side Power (AC)
OSM
Brightness,Contrast, Auto contrast,AdvancedDVmode, DVmode,
Autoadjust, HPosition,Vposition, Hsize,Fine, Colorcontrol,
Sharpness,Expansion mode, Offtimer, LEDBrightness, Hot key,
Factory preset, Language, OSMLeft/Right, OSMDown/Up,OSM
turnoff, OSM Lockout, Resolutionnotifier, Monitor inf.
Functions
Remote Control VESADDC/CI
Safety UL/ cUL, TuV GS, CE, CB Report, PSB
EMCFCCClass B, Canadian DOC Class B, C-tick Class B, CE
VLF/ ELFMPR-II, MPRIII, TCO'03
Power Management VESADPMS ,EPA, Energy starVer 4.0 Tier2, GEEAlabel
ErgonomicsTUV/ERGONOMIE
Plug and Play VESADDC2B
Regulations
Others US Mercury Regulation, Windows XP/2000 Logo
Temperature 5-35degree C
Environment
Condition Humidity 10-80% (without condensation)
Input Voltage AC100-240V, 50/60Hz
Typ84 W max(1.0 A @100 -120V,0.52A@220 - 240V)
Power
consumption Power
saving <2.3WwithUSB hub model, <2W without USBhub (DPMS) <1W (DCPower Off)Meet to EnergyStar Ver 4.0 Tier2
Power Supply
Input Connector 3P IECType
Weight withStandApprox. 6.3kg
without Stand Approx. 4.6kg
Net 471.4 (W)x391.5(H) x203.0(D)mm
Dimension
Gross 570.0(W) x518.0(H) x262.0(D) mm
VESAcompatiblearm mountinginterface 100mmx100mm
Tilt/ Swivel / Rotation/Height Adjustment Up & Down 30degto -5deg / Yes+/- 170degree / NA/ NA
AC Power code 2.0m
Signal Cable 2.0m : minD-sub15pin -minD-sub15pin
2.0m: DVI-D -DVI-D
Accessories
Others User's manual, USB cable, etc.
*1)60% of a mass-product shouldmeet
Product Specifications

CONTENTS
PageNo.
USER SMANUAL...................................................................................................1-1
SERIAL NUMBER INFORMATION..........................................................................2-1
DISASSEMBLY........................................................................................................3-1
ADJUSTMENTPROCEDURES..............................................................................4-1
INSPECTION...........................................................................................................5-1
TROUBLESHOOTING............................................................................................6-1
CIRCUITDESCRIPTION.........................................................................................7-1
REPLACEMENT PARTS LIST................................................................................8-1
BLOCK DIAGRAM...................................................................................................9-1
SCHEMATICDIAGRAMS......................................................................................10-1
PACKING SPECIFICATION...................................................................................11-1
REVISION HISTORY..............................................................................................12-1

MultiSync 20WGX
2
User’s Manual

Index
Warning, Caution ........................................................................................................................ English-1
Declaration .................................................................................................................................. English-1
Canadian Department of Communications Compliance Statement ........................................... English-2
Declaration of Conformity ........................................................................................................... English-2
Contents ...................................................................................................................................... English-3
Quick Start .................................................................................................................................. English-4
Controls ....................................................................................................................................... English-8
Recommended use ..................................................................................................................... English-11
Specifications .............................................................................................................................. English-13
Features ...................................................................................................................................... English-14
Troubleshooting ........................................................................................................................... English-15
TCO’03 ........................................................................................................................................ English-16
Manufacturer’s Recycling and Energy Information ...................................................................... English-17

English
English-1
WARNING
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, MAKE SURE POWER CORD IS UNPLUGGED FROM
WALL SOCKET. TO FULLY DISENGAGE THE POWER TO THE UNIT, PLEASE DISCONNECT THE
POWER CORD FROM THE AC OUTLET.DO NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol warns user that uninsulated voltage within the unit may have sufficient magnitude to cause
electric shock. Therefore, it is dangerous to make any kind of contact with any part inside this unit.
This symbol alerts the user that important literature concerning the operation and maintenance of this unit
has been included. Therefore, it should be read carefully in order to avoid any problems.
Caution:
When operating the MultiSync 20WGX2 with a 220-240V AC power source in Europe, use the power cord provided with the
monitor.
In the UK, a BS approved power cord with a moulded plug has a Black (five Amps) fuse installed for use with this equipment.
If a power cord is not supplied with this equipment please contact your supplier.
When operating the MultiSync 20WGX2with a 220-240V AC power source in Australia, use the power cord provided with the
monitor. If a power cord is not supplied with this equipment please contact your supplier.
For all other cases, use a power cord that matches the AC voltage of the power outlet and has been approved by and
complies with the safety standard of your particular country.
TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. ALSO, DO NOT
USE THIS UNIT'S POLARIZED PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS
THE PRONGS CAN BE FULLY INSERTED.
REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE COMPONENTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
Declaration
Declaration of the Manufacturer
We hereby certify that the colour monitor
MultiSync 20WGX2(L205GJ) is in
compliance with
Council Directive 73/23/EEC:
–EN 60950-1
Council Directive 89/336/EEC:
–EN 55022
–EN 61000-3-2
–EN 61000-3-3
–EN 55024
and marked with
NEC Display Solutions, Ltd.
4-13-23, Shibaura,
Minato-Ku
Tokyo 108-0023, Japan
Windows is a registered trademark of Microsoft Corporation. NEC is a registered trademark of NEC Corporation. ENERGY STAR is a
U.S. registered trademark.
OmniColor is a registered trademark of NEC Display Solutions Europe GmbH in the countries of EU and Switzerland.
ErgoDesign is a registered trademark of NEC Display Solutions, Ltd. in Austria, Benelux, Denmark, France, Germany, Italy, Norway,
Spain, Sweden, U.K.
NaViSet is a trademark of NEC Display Solutions Europe GmbH in the countries of EU and Switzerland.
MultiSync is a registered trademark of NEC Display Solutions, Ltd. in the countries of U.K., Italy, Austria, Netherlands, Switzerland,
Sweden, Spain, Denmark, Germany, Norway and Finland.
All other brands and product names are trademarks or registered trademarks of their respective owners.
As an ENERGY STAR®Partner, NEC Display Solutions of America, Inc. has determined that this product meets the ENERGY STAR guidelines
for energy efficiency. The ENERGY STAR emblem does not represent EPA endorsement of any product or service.

English-2
Canadian Department of Communications Compliance
Statement
DOC: This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CAN/CSA C22.2 No. 60950-1.
FCC Information
1. Use the attached specified cables with the MultiSync 20WGX2(L205GJ) colour monitor so as not to interfere with radio
and television reception.
(1) The power supply cord you use must have been approved by and comply with the safety standards of U.S.A.,
and meet the following condition.
Power supply cord Non shield type, 3-conductor
Length 2.0 m
Plug shape
U.S.A
(2) Please use the supplied shielded video signal cable and USB cable with ferrite cores. Use of other cables and
adapters may cause interference with radio and television reception.
2. 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 your dealer or an experienced radio/TV technician for help.
If necessary, the user should contact the dealer or an experienced radio/television technician for additional
suggestions. The user may find the following booklet, prepared by the Federal Communications Commission, helpful:
“How to Identify and Resolve Radio-TV Interference Problems.”This booklet is available from the U.S. Government
Printing Office, Washington, D.C., 20402, Stock No. 004-000-00345-4.
Declaration of Conformity
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.
U.S. Responsible Party: NEC Display Solutions of America, Inc.
Address: 500 Park Blvd, Suite 1100
Itasca, Illinois 60143
Tel. No.: [phone]
Type of Product: Display Monitor
Equipment Classification: Class B Peripheral
Model: MultiSync 20WGX2(L205GJ)
We hereby declare that the equipment specified above conforms
to the technical standards as specified in the FCC Rules.

English
English-3
Contents
Your new NEC MultiSync LCD monitor box* should contain the following:
•MultiSync 20WGX2monitor with tilt/swivel adjust stand
•Power Cord
•Video Signal Cable (15-pin mini D-SUB male to 15-pin mini D-SUB male)
•Video Signal Cable (DVI-D to DVI-D)
•USB Cable
•User’s Manual
•Cable Cover
•CD ROM (includes complete User’s Manual in PDF format).
To see the User’s Manual, Acrobat Reader 4.0 must be installed on your PC.
* Remember to save your original box and packing material to transport or ship the monitor.
Power Cord
User’s Manual 15-pin mini D-SUB male to
15-pin mini D-SUB male
CD-ROM
Cable Cover
USB Cable
DVI-D to DVI-D

English-4
Quick Start
To attach the MultiSync LCD monitor to your system, follow these instructions:
1. Turn off the power to your computer.
2. For the PC or MAC with DVI digital output: Connect the DVI signal cable to the connector of the display card in your
system (Figure A.1). Tighten all screws.
For the PC with Analog output: Connect the 15-pin mini D-SUB signal cable to the connector of the display card in your
system (Figure A.2). Tighten all screws.
For the MAC: Connect the Macintosh cable adapter to the computer, then attach the 15-pin mini D-SUB signal cable to
the Macintosh cable adapter (Figure B.1). Tighten all screws.
NOTE: Some Macintosh systems do not require a Macintosh cable adapter.
3. Remove the connector cover (Figure C.1).
4. Place hands on each side of the monitor to tilt the LCD panel 30 degrees angles (Figure C.2).
5. Connect all cables to the appropriate connectors through the square hole in the stand (Figure C.3).
Figure A.1 Figure B.1
Macintosh
Cable Adapter
(not included)
Figure A.2
DVI signal cable
Figure C.1 Figure C.2
Figure C.3

English
English-5
6. Place the connector cover onto the back cabinet (Figure C.4).
7. Place all cables into the hooks (Figure C.5).
8. Place hands on each side if the monitor to tilt the LCD panel back 5°(Figure C.6).
9. Place the cable cover onto the stand (Figure C.6). To remove the cable cover, push the notch at the bottom of the cover up
(towards the top of the monitor) in order to unhook the cover from the stand (Figure C.7).
10. Connect the power cord to the power outlet (Figure D.1).
NOTE: Please refer to Caution section of this manual for proper selection of AC power cord.
11. The vacation switch on the back side of the monitor must be turned on (Figure D.1). Turn on the monitor with the front
power button and the computer.
NOTE: The vacation switch is a true on/off switch. If this switch is on the OFF position, the monitor cannot be turned on
using the front button. DO NOT switch on/off repeatedly.
12. No-Touch Auto Adjust automatically adjusts the monitor to optimal settings upon initial setup for most timings.
For further adjustments, use the following OSM controls:
•Auto Adjust Contrast (Analog input only)
•Auto Adjust (Analog input only)
Refer to the Controls section of this User’s Manual for a full description of these OSM controls.
NOTE: If you have any problems, please refer to the Troubleshooting section of this User’s Manual.
Figure C.6 Figure C.7
Figure C.4 Figure C.5
Figure D.1
OFF Position
ON Position Vacation Switch

English-6
Figure M.1
Remove Monitor Stand for Mounting
To prepare the monitor for alternate mounting purposes:
1. Place hands on each side of the monitor to tilt the LCD panel 5 degrees angles.
Remove the cable cover (Figure M.1).
Remove the connector cover (Figure M.2).
2. Disconnect all cables.
3. Place monitor face down on a non-abrasive surface (Figure M.3).
4. Remove the 2 screws connecting the stand to the monitor (Figure M.3).
Tilt and Swivel
Grasp both sides of the monitor screen with your hands and adjust the tilt and swivel as desired (Figure TS.1).
NOTE: Handle with care when tilting and swivelling the monitor screen.
Figure TS.1
Figure M.2
MENU/EXIT
SELECT/1–2
RESET/DV MODE
Figure M.3

English
English-7
Figure M.4 Figure M.5
5. Lift up the stand to unlatch the upper hooks and remove the stand (Figure M.4).
6. Remove the 2 screws on the top of the monitor (Figure M.5). The monitor is now ready for mounting in an alternate
manner.
7. Connect the cables and place the connector cover on the back of the monitor.
8. Reverse this process to re-attach stand.
NOTE: Use only VESA-compatible alternative mounting method.
Handle with care when removing stand.
Flexible Arm Installation
This LCD monitor is designed for use with a flexible arm. To mount the monitor to a flexible arm:
1. Follow the instructions on how Remove Monitor Stand for Mounting to remove the stand.
2. Use the 4 screws to attach the arm to the monitor (Figure F.1).
NOTE: The LCD monitor should only be used with an approved arm (e.g. GS mark). To meet the safety requirements, the
monitor must be mounted to an arm, which guaranties the necessary stability under consideration of the weight of
the monitor.
Thickness of Bracket (Arm)
2.0~3.2mm
4 Screws (M4)
(Max Depth: 8.5mm)
Weight of LCD assembly: 4.6kg (MAX)
100mm
100mm
Figure F.1
12mm
M4
4 x 12mm with lock washer
and flat washer

English-8
Controls
OSM (On-Screen Manager) control buttons on the front of the monitor
function as follows:
To access OSM menu, press any of the control buttons (MENU/EXIT, Left, Right, Down, Up).
To change signal input, press the SELECT button.
To change DV MODE, press the RESET/DV MODE button.
NOTE: OSM must be closed in order to change signal input.
NOTE: When RESET is pressed in the main and sub-menu, a warning window will appear allowing you to cancel the
RESET function by pressing the MENU/EXIT button.
Brightness/Contrast Controls
BRIGHTNESS
Adjusts the overall image and background screen brightness.
CONTRAST
Adjusts the image brightness in relation to the background.
AUTO CONTRAST (Analog input only)
Adjusts the image displayed to optimal settings.
ADVANCED DV MODE
Activates the Advanced Dynamic Video Mode.
DV MODE
Dynamic Visual Mode allows you to select setting for Movie, Photo and etc.
Auto Adjust (Analog input only)
Automatically adjusts the Image Position, H. Size and Fine settings.
Menu
Open OSM main menu.
Exits the OSM controls.
Exits to the OSM main menu.
Button
MENU/EXIT
Left/Right
Down/Up
SELECT/
1<->2RESET
RESET/DV MODE
Moves the highlighted area left/right to select control menus.
Moves the bar left/right to increase or decrease the adjustment.
Direct adjust of brightness if HOT KEY is set to ON.
Enters the OSM menu if HOT KEY is set to OFF.
Moves the highlighted area down/up to select one of the controls.
Direct adjust of contrast if HOT KEY is set to ON.
Enters the OSM menu if HOT KEY is set to OFF.
Enter the OSM sub menu. Active the selected function.
Change the Input source.
Resets the highlighted control menu to the factory setting. Switches the DV Mode.
4-Direction-Key Up
Down
RightLeft

English
English-9
Image Controls (Analog input only)
LEFT / RIGHT
Controls Horizontal Image Position within the display area of the LCD.
DOWN / UP
Controls Vertical Image Position within the display area of the LCD.
H.SIZE
Adjusts the horizontal size by increasing or decreasing this setting.
FINE
Improves focus, clarity and image stability by increasing or decreasing this setting.
Colour Control System
Colour Control System: Six colour presets select the desired colour setting (sRGB and NATIVE colour presets are
standard and cannot be changed).
R,G,B: Increases or decreases Red, Green or Blue colour depending upon which is selected. The change in colour
will appear on screen and the direction (increase or decrease) will be shown by the bars.
NATIVE: Original colour presented by the LCD panel that is unadjustable.
sRGB: sRGB mode dramatically improves the colour fidelity in the desktop environment by a single standard RGB
colour space. With this colour supported environment, the operator could easily and confidently communicate colour
without further colour management overhead in the most common situations.
NOTE: When MOVIE, GAMING, or PHOTO is selected as the DV MODE, NATIVE is selected automatically as the six
colour preset and cannot be changed.
Tools
SHARPNESS: Adjust the image to get distinct or as soft a picture as is preferred.
EXPANSION: Selects the zoom mode.
FULL: The image is expanded to 1680 x 1050, regardless of the resolution.
ASPECT: The image is expanded without changing the aspect ratio.
OFF: The image is not expanded.
NOTE: EXPANSION is available only resolution under 1280 x 1024.
OFF TIMER: Monitor will automatically power-down when the end user has selected a predetermined amount of
time.
LED BRIGHTNESS: You can adjust the Blue LED brightness.
HOT KEY: You can adjust the brightness and contrast directly. When this function is set to ON, you can adjust the
brightness with left or right control and contrast with up or down control while the OSM menu is off.
FACTORY PRESET: Selecting Factory Preset allows you to reset all OSM control settings back to the factory
settings. The RESET button will need to be held down for several seconds to take effect. Individual settings can be
reset by highlighting the control to be reset and pressing the RESET button.
Menu Tools
LANGUAGE: OSM control menus are available in eight languages.
OSM LEFT/RIGHT: You can choose where you would like the OSM control image to appear horizontally on your
screen.
OSM DOWN/UP: You can choose where you would like the OSM control image to appear vertically on your screen.
OSM Turn Off: The OSM control menu will stay on as long as it is in use. In the OSM Turn Off submenu, you can
select how long the monitor waits after the last touch of a button to shut off the OSM control menu.
OSM Lock Out: This control completely locks out access to all OSM control functions without Brightness and
Contrast. When attempting to activate OSM controls while in the Lock Out mode, a screen will appear indicating the
OSM controls are locked out. To activate the OSM Lock Out function, press SELECT, then right control button and
hold down simultaneously. To deactivate the OSM Lock Out, press SELECT, then left control button and hold down
simultaneously while in the OSM menu.
RESOLUTION NOTIFIER: This optimal resolution is 1680 x 1050. If ON is selected, a message will appear on the
screen after 30 seconds, notifying you that the resolution is not at 1680 x 1050.

English-10
Information
The Information menu indicates the current input, display resolution, horizontal and vertical frequency, and polarity
settings of the monitor. The model and serial numbers of your monitor are also indicated.
OSM Warning
OSM Warning menus disappear with Exit button.
NO SIGNAL: This function gives a warning when there is no Horizontal or Vertical Sync. After power is
turned on or when there is a change of input signal, the No Signal window will appear.
RESOLUTION NOTIFIER: This function gives a warning of use with optimized resolution. After power is
turned on or when there is a change of input signal or the video signal doesn’t have proper resolution, the
Resolution Notifier window will open. This function can be disabled in the Menu Tools.
OUT OF RANGE: When input signal is non-supported timing or the video signal doesn’t have proper
timing, the Out of Range menu will appear.

English
English-11
Recommended use
Safety Precautions and Maintenance
FOR OPTIMUM PERFORMANCE, PLEASE NOTE
THE FOLLOWING WHEN SETTING UP AND USING
THE MULTISYNC LCD COLOUR MONITOR:
• DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose
you to dangerous shock hazards or other risks. Refer all servicing to qualified service personnel.
•Do not spill any liquids into the cabinet or use your monitor near water.
•Do not insert objects of any kind into the cabinet slots, as they may touch dangerous voltage points, which can be harmful
or fatal or may cause electric shock, fire or equipment failure.
•Do not place any heavy objects on the power cord. Damage to the cord may cause shock or fire.
•Do not place this product on a sloping or unstable cart, stand or table, as the monitor may fall, causing serious damage to
the monitor.
•Do not place any objects onto the monitor and do not use the monitor outdoors.
•The inside of the fluorescent tube located within the LCD monitor contains mercury.
Please follow the bylaws or rules of your municipality to dispose of the tube properly.
•Do not bend power cord.
•Do not use monitor in high temperatured, humid, dusty, or oily areas.
•Do not cover vent on monitor.
Immediately unplug your monitor from the wall outlet and refer servicing to qualified service personnel under the following
conditions:
•When the power supply cord or plug is damaged.
•If liquid has been spilled, or objects have fallen into the monitor.
•If the monitor has been exposed to rain or water.
•If the monitor has been dropped or the cabinet damaged.
•If the monitor does not operate normally by following operating instructions.
•If glass is broken, handle with care.
•If monitor or glass is broken, do not come in contact with the liquid crystal and handle with care.
•Allow adequate ventilation around the monitor so that heat can properly dissipate. Do not block ventilated
openings or place the monitor near a radiator or other heat sources. Do not put anything on top of
monitor.
•The power cable connector is the primary means of detaching the system from the power supply. The
monitor should be installed close to a power outlet which is easily accessible.
•Handle with care when transporting. Save packaging for transporting.
•Image Persistence: Please be aware that LCD Technology may experience a phenomenon known as Image Persistence.
Image Persistence occurs when a residual or “ghost”image of a previous image remains visible on the screen. Unlike CRT
monitors, LCD monitors’image persistence is not permanent, but constant images being displayed for a long period of
time should be avoided. To alleviate image persistence, turn off the monitor for as long as the previous image was
displayed. For example, if an image was on the monitor for one hour and a residual image remains, the monitor should be
turned off for one hour to erase the image.
NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recommends displaying moving images and
using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.
CAUTION

English-12
CORRECT PLACEMENT AND ADJUSTMENT OF THE MONITOR CAN
REDUCE EYE, SHOULDER AND NECK FATIGUE. CHECK THE
FOLLOWING WHEN YOU POSITION THE MONITOR:
•For optimum performance, allow 20 minutes for warm-up.
•Adjust the monitor height so that the top of the screen is at or slightly below eye level.
Your eyes should look slightly downward when viewing the middle of the screen.
•Position your monitor no closer than 40 cm and no further away than 70 cm from your
eyes. The optimal distance is 50 cm.
•Rest your eyes periodically by focusing on an object at least 20 feet away. Blink often.
•Position the monitor at a 90°angle to windows and other light sources to minimize glare
and reflections. Adjust the monitor tilt so that ceiling lights do not reflect on your screen.
•If reflected light makes it hard for you to see your screen, use an anti-glare filter.
•Adjust the monitor’s brightness and contrast controls to enhance readability.
•Use a document holder placed close to the screen.
•Position whatever you are looking at most of the time (the screen or reference material)
directly in front of you to minimize turning your head while you are typing.
•Avoid displaying fixed patterns on the monitor for long periods of time to avoid image persistence (after-image effects).
•Get regular eye checkups.
Ergonomics
To realize the maximum ergonomics benefits, we recommend the following:
•Use the preset Size and Position controls with standard signals.
•Use the preset Colour Setting.
•Use non-interlaced signals with a vertical refresh rate between 60-75 Hz.
•Do not use primary colour blue on a dark background, as it is difficult to see and may produce eye fatigue to insufficient
contrast.
Cleaning the LCD Panel
Recommended cleaning of the LCD:
•To remove dust and dirt from the surface of the LCD panel, wipe gently with a soft cloth.
•Do not rub the LCD panel with rough material.
•Do not press on the surface of the LCD panel.
To avoid scratches
•Do not touch LCD panel with hard objects.
•Use only a soft cloth for cleaning the surface of the LCD panel.
To avoid stains
•Clean fingerprints, water drips, chemical spills and etc. from the LCD panel immediately or discoloration and spot will
occur.
•If the LCD panel is rubbed with too much force, cracking may occur, which will lead to abnormalities in the display.
To avoid breakage or screen trouble
•Do not push hard on the LCD panel surface.
•Do not set heavy objects on the LCD panel surface.
•Do not leave the LCD panel under constant pressure.
Cleaning the Cabinet
•Unplug the power supply.
•Use a soft cloth.
•Dampen the cloth with a mild detergent mixed with water, wipe the cabinet and dry with a soft cloth.
NOTE: Many plastics are used on the cabinet surface. DO NOT clean with benzene, alkaline detergent, alcoholic system
detergent, glass cleaner, wax, polish cleaner, soap powder or insecticide. Do not touch the cabinet with rubber or
vinyl for a prolonged period. These types of fluids and fabrics can cause the paint to deteriorate, crack or peel.

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Specifications
Monitor Specifications MultiSync 20WGX2Monitor Notes
LCD Module Diagonal: 43.3 cm/20.1 inches Active matrix; thin film transistor (TFT)
Viewable Image Size: 43.3 cm/20.1 inches liquid crystal display (LCD); 0.258 mm dot
Native Resolution (Pixel Count): 1680 x 1050 pitch; 470 cd/m2white luminance; 1600:1
contrast ratio, typical (in Advanced DV
Mode).
Input Signal Video: ANALOG 0.7 Vp-p/75 Ohms Digital Input: DVI-D
Sync: Separate sync.TTL Level Positive/Negative
Horizontal sync. Positive/Negative
Vertical sync. Positive/Negative
Composite sync. Positive/Negative*2
Sync on Green (Video 0.7 Vp-p and Sync. Negative 0.3 Vp-p)*2
Display Colours 16,700,000 Depends on display card used.
Synchronization Range Horizontal: 31.5 kHz to 81.1 kHz Automatically
Vertical: 56.0 Hz to 75.0 Hz Automatically
Viewing Angle Left/Right: 89°/89°(CR > 10)
Up/Down: 89°/89°(CR > 10)
Resolutions Supported 720 x 400*1at 70Hz Some systems may not support all modes
640 x 480*1at 60 Hz to 75 Hz listed.
800 x 600*1at 56 Hz to 75 Hz
832 x 624*1at 75 Hz
1024 x 768*1at 60 Hz to 75 Hz
1152 x 864*1at 75 Hz
1152 x 870*1at 75 Hz
1280 x 960*1at 60 Hz to 75 Hz
1280 x 1024*1at 60 Hz to 75 Hz
1440 x 900*1at 60 Hz Recommended resolution is 60 Hz for
1680 x 1050 at 60 Hz.................................. optimal display performance.
Active Display Area Horizontal: 433.0 mm/17.0 inches
Vertical: 271.0 mm/10.7 inches
USB Hub I/P: USB Specification Revision 2.0
Port: Upstream 1
Downstream 4
Load Current: Maximum 0.5A per port
Power Supply AC 100-240V ~ 50/60Hz
Power Consumption 84 W (typ)
(without optional Sound Bar)
Current Rating 1.0- 0.52A
Dimensions 471.4 mm (W) x 391.5 mm (H) x 203.0 mm (D)
18.6 inches (W) x 15.4 inches (H) x 8.0 inches (D)
Weight 6.3 kg (13.9 lbs)
Environmental Considerations
Operating Temperature: 5°C to 35°C/41°F to 95°F
Humidity: 30% to 80%
Altitude: 0 to 12,000 Feet
Storage Temperature: -10°C to 60°C/14°F to 140°F
Humidity: 10% to 85%
Altitude: 0 to 40,000 Feet
*1 Interpolated Resolutions: When resolutions are shown that are lower than the pixel count of the LCD module, text may appear different. This is
normal and necessary for all current flat panel technologies when displaying non-native resolutions full screen. In flat panel technologies, each dot on
the screen is actually one pixel, so to expand resolutions to full screen, an interpolation of the resolution must be done.
*2 If your display is not showing a picture of the SOG and Composite Sync. Signal, please contact our hotline for further assistance.
NOTE: Technical specifications are subject to change without notice.

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Features
Thin-frame design creates more desktop space for you to work and play, while the flat screen’s crisp, bright images and crystal-
clear text deliver a comfortable viewing experience.
Xtra View technology allows for wide -angle viewing.
No Touch Auto Adjust automatically adjusts your optimal image settings upon initial power-on.
Colour Control System allows you to change between six colour settings on your display to match your personal preference.
Redesigned OSM controls allow you to quickly and easily adjust all elements of your screen image.
NaViSet software offers an expanded and intuitive graphical interface, allowing you to more easily adjust OSM display settings
via mouse and keyboard.
The flat screen’s crisp, bright images and crystal-clear text deliver a comfortable viewing experience.
OptiClear LCD panel and Dynamic Visual Mode (DVM) for brilliant colour and outstanding image clarity.
ErgoDesign Features: Enhance human ergonomics to improve the working environment, protect the health of the user and
save money. Examples include OSM controls for quick and easy image adjustments, tilt base for preferred angle of vision, small
footprint and compliance with MPRII and TCO guidelines for lower emissions.
Plug and Play: The Microsoft®solution with the Windows®95/98/Me/2000/XP operating system facilitates setup and installation
by allowing the monitor to send its capabilities (such as screen size and resolutions supported) directly to your computer,
automatically optimizing display performance.
IPM (Intelligent Power Manager) System: Provides innovative power-saving methods that allow the monitor to shift to a lower
power consumption level when on but not in use, saving two-thirds of your monitor energy costs, reducing emissions and
lowering the air conditioning costs of the workplace.
Multiple Frequency Technology: Automatically adjusts monitor to the display card’s scanning frequency, thus displaying the
resolution required.
FullScan Capability: Allows you to use the entire screen area in most resolutions, significantly expanding image size.
VESA Standard Mounting Interface: Allows users to connect their MultiSync monitor to any VESA standard third party
mounting arm or bracket. Allows for the monitor to be mounted on a wall or an arm using any third party compliant device.
USB 2.0 hub ads excitement to your computing by connecting you to digital cameras, scanners and more.
OptiClear DVM: Provides rich colour saturation, remarkable clarity and true-to-life contrast to enhance the user’s overall
visual perception.