Eizo Flexscan S2431w Users Manual

							
29Chapter 4  Troubleshooting

ProblemsPossible cause and remedy
18.  The monitor connected with the USB cable is not 
detected. / USB devices connected to the monitor 
does not work. •  Check whether the USB cable is connected correctly.
•  Change the USB port to another one. If the PC or peripheral devices works correctly by changing the USB 
port, contact your local dealer. (Refer to the manual of 
the PC for details.)
•  Please perform the followings to check the status.
 
•  Reboot the PC.
 
•  Connect the PC and peripheral devices directly.
•  If the PC or peripheral devices works correctly without  connecting each other via the monitor (working as a USB 
hub), please contact your local dealer. 
•  Check whether the PC and OS are USB compliant. (For 
USB compliance of the respective devices, consult their 
manufacturers.)
•  Check the PC’s BIOS setting for USB when using 
Windows. (Refer to the manual of the PC for details.)
 
						

							
30Chapter 5  Reference

Chapter 5  Reference
5-1  Attaching an Arm
The stand can be removed and replaced with an arm (or another stand) to be 
attached to the monitor. Use an arm or stand of EIZO option.
[Attaching]
1  Lay the LCD monitor on a soft cloth spread over on a stable 
surface with the panel surface facing down.
2  Remove the stand. (Prepare a screwdriver.)
Unscrew the four screws securing the unit and the stand with the 
screwdriver.
3  Attach the monitor to the arm or stand.Secure the monitor to the arm or stand using the screws specified in the 
user’s manual of the arm or stand.
Attention
•  When attaching an arm or stand, follow the instructions of their user’s 
manual.
•  When using another manufacturer’s  arm or stand, confirm the following in 
advance and select one conforming to 
the VESA standard. Use the M4 × 12 
screws supplied with this monitor.
– Clearance between the screw holes: 
100 mm × 100 mm
– Thickness of plate: 2.6 mm
– Strong enough to support weight of 
the monitor unit (except the stand) 
and attachments such as cables.
•  When using an arm or stand, attach it  to meet the following tilt angles of the 
monitor.
– Up 45 degrees, down 45 degrees (horizontal display, and vertical 
display rotated 90 degrees 
clockwise)
•  Connect the cables after attaching an 
arm.
•  If you need to remove the EZ-UP 
stand, turn the panel on the monitor 
to the left and right a little to appear 
the four screws positioned under the 
stand. Then unscrew the four screws.
 
						

							
31Chapter 5  Reference

Attention
•  Never use any solvents or chemicals, such as thinner, benzene, wax, 
alcohol, and abrasive cleaner, which 
may damage the cabinet or LCD 
panel.
NOTE
•  Optional ScreenCleaner is 
recommended for cleaning the panel 
surface.
5-2  Cleaning
Clean the monitor periodically to keep the monitor clean and extend its life.
Cabinet
Clean the cabinet with a soft cloth dampened with little mild deter gent.
LCD Panel
•  Clean the LCD panel with a soft cloth such as cotton cloth or lens cleaning 
paper. 
•  Remove persistent stains gently with a cloth dampened with little water, and  then clean the LCD panel again with a dry cloth for better finishing.
 
						

							
32Chapter 5  Reference

5-3  Specifications
S2031W
LCD Panel20.1-inch (510 mm) TFT color LCD with anti-glare hard coating  
Viewing angle: Horizontal 178°, Vertical 178°(CR:10 or more)
Dot Pitch0.258mm
Horizontal Scan FrequencyAnalog: 24-82kHz Digital: 31-65kHz
Vertical Scan Frequency
Analog: 49-86Hz (Non-interlace) (1280 × 1024: 49-76Hz)(1680 × 1050: 49-61Hz)Digital: 59-61Hz (Non-interlace) 
(VGA TEXT: 69-71Hz)
Resolution1680 dots × 1050 lines
Max. Dot ClockAnalog: 150MHzDigital: 120MHz
Max. Display Color Approx. 16.77 million colors: Applicable to 8 bit (1048.77 million colors)
Display Area (H × V)
443.4mm × 270.9mm
Power Supply 100 - 120 VAC ±10%, 50/60Hz 0.7A
200 - 240 VAC ±10%, 50/60Hz 0.4A
Power ConsumptionScreen Display On70W or less (with USB load, speaker working)60W or less (without USB load, speaker not working)
Power saving mode2W or less (for single signal input, without USB load, when stereo mini jack is not connected)
Power button Off
1W or less (without USB load, when stereo mini jack is not connected)
Input Signal ConnectorDVI-I connector (Applicable to HDCP), D-Sub mini 15-pin
Analog Input Signal (Sync) Separate, TTL, positive/ negative
Composite, TTL, positive/ negative
Analog Input Signal (Video)
Analog, Positive (0.7Vp-p/75Ω)
Digital Signal Transmission System
TMDS (Single Link)
Video Signal Memory
Analog signal: 45 (preset: 24)
Digital signal: 10 (preset: 0)
Audio Output Speaker output: 0.5W + 0.5W (8Ω, THD: 10% or less)Headphone output: 2mW + 2mW
Line inputInput impedance : 47 kΩ (typ.)
Input level :1.0 Vrms (Max.)
Plug & PlayVESA DDC 2B / EDID structure 1.3
Dimensions (Width) × (Height) × (Depth) mm (inch)
Main unit (including Height adjustable stand)
469mm (18.5) × 427-509mm (16.8-20.0) × 208.5mm (8.2)
Main unit (including 
EZ-UP stand)469mm (18.5) × 339.5-504.5mm (13.4-19.9) × 279.9-291.9mm (11.0-11.5)
Main unit (without stand)469mm (18.5) × 309mm (12.2) × 69.5mm (2.74)
Mass Main unit (including Height adjustable stand)
9.6kg (21.1 lbs)
Main unit (including 
EZ-UP stand)11.4kg (25.1 lbs)
Main unit (without stand)6.6kg (14.5 lbs)
 
						

							
33Chapter 5  Reference

Movable rangeTilt Height adjustable stand  : 40° Up, 0° Down
EZ-UP stand  : 25° Up, 0° Down
SwivelHeight adjustable stand  : 35° Right, 35° Left
EZ-UP stand  : 172° Right, 172° Left
AdjustableheightHeight adjustable stand  : 82 mm (3.2 inch)
EZ-UP stand 
: 165 mm (6.5 inch)
RotationHeight adjustable stand  : 90°
EZ-UP stand  : 90°
Environmental ConditionsTemperatureOperating temperature: 0 °C - 35 °C (32 °F - 95 °F)Storage temperature: -20 °C - 60 °C (-4 °F - 140 °F)
HumidityRelative humidity: 30% - 80% (no condensation)
USBStandard
USB Specification Revision 2.0 
PortUpstream port × 1, Downstream port × 2
Supply currentDownstream: Max. 500mA/1 port
S2431W
LCD Panel 24.1-inch (610 mm) TFT color LCD with anti-glare hard coating
Viewing angle: Horizontal 178°, Vertical 178°(CR:10 or more)
Dot Pitch0.270mm
Horizontal Scan FrequencyAnalog: 24-94kHzDigital: 31-76kHz
Vertical Scan Frequency
Analog: 49-86Hz (Non-interlace)  (1600 × 1200: 49-76Hz)(1920 × 1200: 49-61Hz)Digital: 59-61Hz (Non-interlace) 
(VGA TEXT: 69-71Hz)
Resolution1920 dots × 1200 lines
Max. Dot ClockAnalog: 202.5MHzDigital: 162MHz
Max. Display Color Approx. 16.77 million colors: Applicable to 8 bit (1048.77 million colors)
Display Area (H × V)
518.4mm × 324.0mm
Power Supply 100-120 VAC ±10%, 50/60Hz 1.1A
200-240 VAC ±10%, 50/60Hz 0.55A
Power ConsumptionScreen Display On110W or less (with USB load, speaker working)100W or less (without USB load, speaker not working)
Power saving mode2W or less (for single signal input, without USB load, when stereo mini jack is not connected)
Power button Off
1W or less (without USB load, when stereo mini jack is not connected)
Input Signal ConnectorDVI-I connector (Applicable to HDCP), D-Sub mini 15-pin
Analog Input Signal (Sync) Separate, TTL, positive/ negative
Composite, TTL, positive/ negative
Analog Input Signal (Video)
Analog, Positive (0.7Vp-p/75Ω)
Digital Signal Transmission System
TMDS (Single Link)
Video Signal Memory
Analog signal: 45 (preset: 30)
Digital signal: 10 (preset: 0)
Audio Output Speaker output: 0.5W + 0.5W (8Ω, THD: 10% or less)Headphone output: 2mW + 2mW
Line inputInput impedance : 47 kΩ (typ.)
Input level :1.0 Vrms (Max.)
 
						

							
34Chapter 5  Reference

Plug & PlayVESA DDC 2B / EDID structure 1.3
Dimensions (Width) × (Height) × (Depth) mm (inch)
Main unit (including Height adjustable stand)
566mm (22.3) × 456-538mm (18-21.2) × 208.5mm (8.2)
Main unit (including 
EZ-UP stand)566mm (22.3) × 380.4-533.5mm (15.0-21.0) × 279.9-307.6mm (11.0-12.1)
Main unit (without stand)566mm (22.3) × 367mm (15.5) × 85mm (3.4)
Mass Main unit (including Height adjustable stand)
10.6kg (23.3 lbs)
Main unit (including 
EZ-UP stand)12.4kg (27.3 lbs)
Main unit (without stand)7.6kg (16.7 lbs)
Movable range
Tilt Height adjustable stand  : 40° Up, 0° Down
EZ-UP stand  : 25° Up, 0° Down
SwivelHeight adjustable stand  : 35° Right, 35° Left
EZ-UP stand  : 172° Right, 172° Left
AdjustableheightHeight adjustable stand  : 82 mm (3.2 inch)
EZ-UP stand 
: 153.1 mm (6.0 inch)
RotationHeight adjustable stand  : 90°
EZ-UP stand  : 90°
Environmental ConditionsTemperatureOperating temperature: 0 °C - 35 °C (32 °F - 95 °F)Storage temperature: -20 °C - 60 °C (-4 °F - 140 °F)
HumidityRelative humidity: 30% - 80% (no condensation)
USBStandard
USB Specification Revision 2.0 
PortUpstream port × 1, Downstream port × 2
Supply currentDownstream: Max. 500mA/1 port
Main default settings (factory settings)
BrightRegulatorDisable
Smoothing3
FineContrast Mode Custom
PowerManager VESA DPMS (Analog Input)
DVI DMPM (Digital Input)
Screen SizeFull Screen
Off Timer
Disable
Menu SettingsMenu SizeNormal
Menu Off Timer
45 sec
Language English
 
						

							
35Chapter 5  Reference

Outside Dimensions
S2031W (Height adjustable stand)
unit : mm (inch)
S2031W (EZ-UP stand)
435.4(17.1)469(18.5)
272.9(10.7)
309(0.15)
43.8(1.72)69.5(2.74)TILT25
272(10.7)
90
13.4(0.53)
172172
100
100
279.9(11.0)
Adjustableheight
129.3(5.1)
115.5339.5(13.4)
185(7.3)
165(6.5)
195.5(7.7)350(13.8)504.5(19.9)
518.9(20.4)
79.812(0.47)291.9(11.5)
(3.9)
(3.14)
(4.5)
(3.9)
SWIVEL
PIVOT
unit : mm (inch)
 
						

							
36Chapter 5  Reference

S2431W (Height adjustable stand)
unit : mm (inch)
S2431W (EZ-UP stand)
PIVOT
SWIVEL
272(10.7)
90
13.4
326(12.8)
367(14.4)
172172
520.4(20.5)566(22.3)
100
100
279.9(11.0)
56.3(2.22)85
TILT25
Adjustableheight
129.3(5.1)
166.5(6.6)350(13.8)533.5(21.0)
552.2(21.7)
64.3(2.53)
196.9(7.8)
153.1(6.0)
380.4(15.0)
27.7(1.09)307.6(12.1)
67(2.64)(0.53)
(3.35)
(3.9)
(3.9)
unit : mm (inch)
 
						

							
37Chapter 5  Reference

Connector Pin Assignment
•  DVI-I connector 
 123456789101112131415161920211718222324
C1C2C3C4C5
Pin No.SignalPin No.SignalPin No.Signal 
1T.M.D.S. Data 2- 11T.M.D.S. Data1/3 Shield21NC*
2T.M.D.S. Data 2+12NC*22 T.M.D.S. Clock shield
3T.M.D.S. Data2/4 Shield13NC*23 T.M.D.S. Clock+
4NC*14+5V Power24T.M.D.S. Clock-
5NC*15Ground (return for +5V, Hsync and Vsync)C1Analog Red
6DDC Clock (SCL)16Hot Plug DetectC2Analog Green
7DDC Data (SDA)17T.M.D.S. Data0-C3Analog Blue
8Analog Vertical Sync18 T.M.D.S. Data0+C4Analog Horizontal Sync
9T.M.D.S. Data1-19 T.M.D.S. Data0/5 ShieldC5Analog Ground (analog R,G,&B return)
10T.M.D.S. Data1+20NC*
(NC*: No Connection)
•  D-Sub mini 15-pin connector
 513428769101213141511
Pin No.Signal Pin No.Signal Pin No.Signal 
1Red video6Red video ground 11NC*
2Green video or Green video + Composite Sync7Green video ground12Data (SDA)
3Blue video8Blue video ground13H. Sync
4NC*9NC*14V. Sync
5Ground10Ground15Clock (SCL)
(NC*: No Connection)
•  USB port
 
Upstream
Series B connector
Downstream
Series A connector
Contact No.SignalRemarks
1VCCCable power
2– DataSerial data
3+ DataSerial data
4GroundCable ground
Option List
Cleaning KitEIZO ScreenCleaner
Signal CableFD-C16FD-C39
Speaker Uniti•Sound L3
 
						

							
38Chapter 5  Reference

5-4  Glossary
Clock
The analog input monitor needs to reproduce a clock of the same frequency as the dot clock of the graphics system in 
use, when the analog input signal is converted to a digital signal for image display. 
This is called clock adjustment. If the clock pulse is not set correctly , some vertical bars appear on the screen.
DDC/CI (Display Data Channel/Command Interface)
VESA provides the standardization for the interactive communication of the setting information, etc. between a PC 
and the monitor.
DVI (Digital Visual Interface) DVI is a digital interface standard. DVI allows direct transmission of the PC’ s digital data without loss.
This adopts the TMDS transmission system and DVI connectors. There are two types of DVI connectors. One is 
a DVI-D connector for digital signal input only. The other is a DVI-I connector for both digital and analog signal 
inputs.
DVI DMPM (DVI Digital Monitor Power Management) DVI DMPM is a digital interface power-saving function. The “Monitor ON (operating mode)” and “Active Off 
(power-saving mode)” are indispensable for DVI DMPM as the monitor’s power mode.
GainThis is used to adjust each color parameter for red, green and blue.  An LCD monitor displays the color by the light 
passing through the panel color filter. Red, green and blue are the three primary colors. All the colors on the screen 
are displayed by combining these three colors. The color tone can be changed by adjusting the light intensity (volume) 
passing through each color’s filter.
Gamma Generally, the monitor brightness varies nonlinearly with the input signal level, which is called “Gamma 
Characteristic”. A small gamma value produces a low-contrast image, while a large gamma value produces a high-
contrast image.
HDCP (High-bandwidth Digital Contents Protection) Digital signal coding system developed to copy-protect the digital contents, such as video, music, etc.  This helps 
to transmit the digital contents safely by coding the digital contents sent via DVI terminal on the output side and 
decoding them on the input side.
Any digital contents cannot be reproduced if both of the equipments on the output and input sides are not applicable 
to HDCP system.
Phase
Phase means the sampling timing to convert the analog input signal to a digital signal. Phase adjustment is made to 
adjust the timing. It is recommended that phase adjustment be made after the clock is adjusted correctly .
Range Adjustment
Range adjustment controls the signal output levels to display every color gradation. It is recommended that range 
adjustment be made before color adjustment.
Resolution The LCD panel consists of numerous pixels of specified size, which are illuminated to form images. This monitor 
consists of 1680 (S2031W) / 1920 (S2431W) horizontal pixels and 1050 (S2031W) / 1200 (S2431W) vertical pixels. 
At a resolution of 1680 x 1050 (S2031W) / 1920 x 1200 (S2431W), all pixels are illuminated as a full screen (1:1).