ViewSonic VA2448 LED Manual

							ViewSonicVA2448-LED/VA2448m-LED 8
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 1920 x 1080) and
refresh rate (or vertical frequency; example 60 Hz). After setting 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 1080 @ 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 cards 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
•OSD Lock: Press and hold [1] and the up arrow S for 10 seconds. If any buttons are 
pressed the message OSD Locked will display for 3 seconds.
•OSD Unlock: Press and hold [1] and the up arrow S again for 10 seconds.
•Power Button Lock: Press and hold [1] and the down arrow T for 10 seconds. If the 
power button is pressed the message Power Button Locked will display for 3 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 T again for 10 seconds.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 9
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.
VA2448-LED
Main Menu
with OSD controls
Scrolls through menu options and adjusts the displayed control.
Brightness (T) / Contrast  (S)
Displays the control screen for the highlighted control.
Also toggles between two controls on some screens.
Also a shortcut to toggle analog and digital connection.Power light
Blue = ON
Orange = Power Saving
Standby Power On/Off
Displays the Main Menu or exits the control screen and saves
adjustments.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 10 VA2448m-LED
Main Menu
with OSD controls
Scrolls through menu options and adjusts the displayed control.
Audio Adjust (T) / Brightness/Contrast  (S)
Displays the control screen for the highlighted control.
Also toggles between two controls on some screens.
Also a shortcut to toggle analog and digital connection.Power light
Blue = ON
Orange = Power Saving
Standby Power On/Off
Displays the Main Menu or exits the control screen and saves
adjustments.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 11 Do the following to adjust 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, pressSorTto scroll up or down in the Main Menu.
3.After the desired control is selected, press button [2]. A control screen like the one shown 
below appears.
4.To adjust the control, press the up S or down T buttons.
5.To save the adjustments and exit the menu, press button [1] twice.
The following tips may help you optimize your display:
• Adjust the computers graphics card so that it outputs a 1920 x 1080 @ 60Hz video signal to
the LCD display. (Look for instructions on “changing the refresh rate” in the graphics cards
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.)
VA2448-LED VA2448m-LED
The line at the bottom of the screen shows
the current functions of buttons 1 and 2:
Exit or select the control.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 12
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, and fine tunes 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.
Contrast adjusts the difference between the image background (black level) 
and the foreground (white level).
Brightness adjusts background black level of the screen image.
Input Select toggles between inputs if you have more than one computer 
connected to the LCD Display.
Audio Adjust (For VA2448m-LED only)
Vo l u m e increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 13
Control Explanation
Color Adjust provides several color adjustment modes, including preset color 
temperatures and a User Color mode which allows independent adjustment of 
red (R), green (G), and blue (B). The factory setting for this product is 6500K 
(6500 Kelvin).
sRGB-This is quickly becoming the industry 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).
7500K-Adds blue to the screen image for cooler white (used in most office 
settings with fluorescent lighting).
6500K-Adds red to the screen image for warmer white and richer red.
5000K-Adds red to the screen image for warmer white and richer red.
User Color Individual adjustments for red (R), green (G), and blue (B).
1.To select color (R, G or B) press button [2].
2.To adjust selected color, pressSandT.
Important: If you select RECALL from the Main Menu when the product is 
set to a Preset Timing Mode, colors return to the 6500K factory preset.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 14
Control Explanation
Information displays the timing mode (video signal input) coming from the 
graphics card in the computer, the LCD model number, the serial number, and 
the ViewSonic
® website URL. See your graphics card’s user guide for 
instructions on changing the resolution and refresh rate (vertical frequency).
NOTE: VESA 1920 x 1080 @ 60Hz (recommended) means that the resolution 
is 1920 x 1080 and the refresh rate is 60 Hertz.
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 text and/or graphics with pixel 
boundaries.
NOTE: Try Auto Image Adjust first.
Sharpness adjusts the clarity and focus of the screen image.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 15
Control Explanation
Dynamic Contrast allows the user to turn the contrast ratio enhancement on or 
off.
Aspect ratio Selects the image size for 4:3 and full screen.
ECO Mode provides the lower power consumption by reducing the brightness. 
Standard: The default brightness setting.
Optimize: Decreases the brightness by 25 %.
Conserve: Decreases the brightness by 50 %.
Setup Menu displays the menu shown below:
Language Select allows the user to choose the language used in the menus and 
control screens.
Resolution Notice advises the optimal resolution to use.
OSD Position allows the user to move the 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 Background allows the user to turn the OSD background On or Off.
Auto Power Off, if enabled, will power off the display automatically when no 
signal is detected for 3 minutes.
Power Indicator allows the user to select the Power Indicator On/Off for 
Power On/Off mode.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 16
Control Explanation
Memory Recall returns the adjustments back to factory settings if the display is 
operating in a factory Preset Timing Mode listed in the Specifications of this 
manual.
Exception: This control does not affect changes made with the Language Select 
or Power Lock setting.
 
						

							ViewSonicVA2448-LED/VA2448m-LED 17
Other Information
Specifications
1 Macintosh computers older than G3 require a ViewSonic® Macintosh adapter. To order an adapter, contact
ViewSonic.LCDTy p e
Display Size
Color Filter
Glass SurfaceTFT (Thin Film Transistor), Active Matrix 1920 x 1080 LCD,
0.2715 mm pixel pitch
Metric: 60 cm
Imperial: 24” (23.6” viewable)
RGB vertical stripe
Anti-Glare
Input SignalVideo Sync RGB analog (0.7/1.0 Vp-p, 75 ohms) / TMDS Digital (100ohms)
Separate Sync
f
h:24-82 kHz, fv:50-75 Hz
CompatibilityPC
Macintosh
1Up to 1920 x 1080 Non-interlaced
Power Macintosh up to 1920 x 1080
ResolutionRecommended
and supported1920 x 1080 @ 60 Hz
1680 x 1050 @ 60 Hz
1600 x 1200 @ 60 Hz
1440 x 900 @ 60, 75 Hz
1360 x 768 @ 60 Hz
1280 x 1024 @ 60, 75 Hz
1280 x 960 @ 60, 75 Hz
1024 x 768 @ 60, 70, 72, 75 Hz
800 x 600 @ 56, 60, 72, 75 Hz
640 x 480 @ 60, 75 Hz
720 x 400 @ 70 Hz
PowerVoltage 100-240 VAC, 50/60 Hz (auto switch)
Display areaFull Scan 521.28 mm (H) x 293.22 mm (V)
20.52 (H) x 11.54 (V)
Operating
conditionsTemperature
Humidity
Altitude+32° F to +104° F (0° C to +40° C)
10% to 90%  (non-condensing)
To 10,000 feet
Storage
conditionsTemperature
Humidity
Altitude-4° F to +140° F (-20° C to +60° C)
10% to 80% (non-condensing)
To 40,000 feet
DimensionsPhysical 574.64 mm (W) x 430.14 mm (H) x 234 mm (D)
22.62” (W) x 16.93 (H) x 9.21 (D)
WeightPhysical 10.14 lbs (4.6 kg)
RegulationsBSMI, CCC, PSB, C-Tick, CE, Ergo, Ukraine, UL/cUL, 
Gost-R/Hygienic, FCC-B, ICES-B, TCO 5.1, E
NERGY STA R®
Power saving
modesOn
Off26W (Typical) (VA2448-LED)      (blue LED)
29W (Typical) (VA2448m-LED)      (blue LED)