ViewSonic VX2640w Manual

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Using the LCD Display
Setting the Timing Mode
Setting the timing mode is important for maximizing the quali ty of the screen image and
minimizing eye strain. The  timing mode consists of the  resolution (example 1920 x 1200) and
refresh rate  (or vertical frequency; example 60 Hz). After setti ng the timing mode, use the
OSD (On-screen Display) controls to adjust the screen image.
For the best picture quality set your LCD display timing mode to:
VESA 1920 x 1200 @ 60Hz .
To set the...

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Adjusting the Screen Image
Use the buttons on the front control panel to display and adjust the OSD controls which display 
on the screen. The OSD controls are explained at the top of the next page and are defined in 
“Main Menu Controls” on page 11.
Main Menu
with OSD controls
Front Control Panel
shown below in detail
Scrolls through 
menu options and 
adjusts the 
displayed control.
Also a shortcut to 
display the Contrast/
Brightness 
adjustment control 
screen.
Displays the control...

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Do the following to ad
just the display setting:
1. To display the Main Menu, press button [1].
NOTE:  All OSD menus and adjustment screens  disappear automatically after about 15 
seconds. This is adjustable through the  OSD timeout setting in the setup menu.
2. To select a control to adjust, press SorT to scroll up or down in the Main Menu.
3. After the desired control is se lected, press button [2]. A cont rol screen like the one shown 
below appears.
4. To adjust the control,...

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Main Menu Controls
Adjust the menu items shown below by using the up  S and down  T buttons.
Control Explanation
Auto Image Adjust  automatically sizes, centers, a nd fine tunes the video signal 
to eliminate waviness and distortion. Pr ess 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....

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Control Explanation
sRGB-This is quickly becoming the industr y standard for color management,
with support being included in many of  the latest applications. Enabling this
setting allows the LCD display to more accurately display colors the way they
were originally intended. Enabling the sRGB  setting will cause the Contrast and
Brightness adjustments to be disabled.
9300K- Adds blue to the screen image for  cooler white (used in most office
settings with fluorescent lighting)....

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Control Explanation
Manual Image Adjust  displays the Manual Image Adjust menu.
H./V. Position (Horizontal/Vertical Position)  moves the screen image left or 
right and up or down.
H. Size (Horizontal Size)  adjusts the width of the screen image.
Fine Tune  sharpens the focus by aligning te xt and/or graphics with pixel 
boundaries. NOTE:  Try Auto Image Adjust first.
Sharpness  adjusts the clarity and focus of the screen image.
Dynamic Contrast  allows the user to turn the c ontrast...

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Control Explanation
Setup Menu displays the menu shown below:
Language  Select allows the user to choose th e language used in the menus and 
control screens.
Resolution Notice  advises the optimal resolution to use.
OSD Position  allows the user to move th e OSD menus and control screens.
OSD Timeout  sets the length of time the OSD screen is displayed. For 
example, with a “15 second” setting, if  a control is not pushed within 15 
seconds, the display screen disappears.
OSD...

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Other Information
Specifications
1 Macintosh computers older than G3 require a ViewSonic® Macintosh adapter. To order an adapter, contact
ViewSonic. LCD
Ty p e
Color Filter
Glass Surface 26
” (full 25.5  wide viewable diagonal area),
TFT (Thin Film Transistor), Active Matrix WUXGA LCD,
0.2865 mm pixel pitch
RGB vertical stripe
Anti-Glare
Input Signal Video Sync RGB analog (0.7/1.0 Vp-p, 75 ohms)
HDMI/DVI-D (TMDS digital, 100ohms)
Composite Sync, Separate Sync, Sync on Green
f
h:24-82...

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Troubleshooting
No power
• Make sure power button (or switch) is ON.
• Make sure A/C power cord is secu rely connected to the LCD display.
• Plug another electrical device (l ike 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...

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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/RegionWebsite T = Telephone
F = FAXEmail
Australia/New Zealand www.viewsonic.com.au AUS= 1800 880 818
NZ= 0800 008 [email protected]
Canada www.viewsonic.com T= 1-866-463-4775 
F= 1-909-468-5814 [email protected]
Europe/Middle East/
Baltic countries/North 
Africa www.viewsoniceurope.com Contact your reseller...