ViewSonic VA2248m LED Manual

ViewSonicVA2248-LED/VA2248m-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 12.
VA2248-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...

ViewSonicVA2248-LED/VA2248m-LED 10 VA2248m-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.
 

ViewSonicVA2248-LED/VA2248m-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,...

ViewSonicVA2248-LED/VA2248m-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...

ViewSonicVA2248-LED/VA2248m-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 Native.
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...

ViewSonicVA2248-LED/VA2248m-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...

ViewSonicVA2248-LED/VA2248m-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...

ViewSonicVA2248-LED/VA2248m-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.
 

ViewSonicVA2248-LED/VA2248m-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,
0.25 mm pixel pitch
Metric: 55 cm
Imperial: 22” (21.5” 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...

ViewSonicVA2248-LED/VA2248m-LED 18
Troubleshooting
No power
• Make sure power button (or switch) is ON.
• Make sure A/C power cord is securely 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...