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Clarity Visual Systems
September 1999
54
Clarity’s Big Picture™
Wall Processor Setup Instructions
These are the basic steps to follow to display a single image over an entire wall of
displays. Big Picture can be setup and saved for each video source, so you can
switch between sources while maintaining the specific magnification and position
settings for each source.
1. Build the wall
Install the wall and attach source and power cables as
described in earlier sections.
Use an amplifier/splitter device (distribution amplifier)
from the source or, if you are using loop-thru, use short,
shielded cables to minimize noise and image jitter.
2. Select the Source and
Mode
In the menu for each display, select the source that will
use Big Picture. If this is a computer source, use Auto
for Mode selection.
3. Adjust the image settings
As described in Step 2, Step 3, and Step 4 in earlier
sections, adjust black and white levels for each display;
set phase and frequency; color balance the wall.
4. Disable wall mode
Open the Wall Processor menu and make sure that the
Wall mode
feature at the bottom of the menu is not
checked. Do this for each display.
5. Reset Zoom
Set Zoom in the menu to the default width and height of
800x600 or 640x480, depending on the Source and
Mode.
6. Center the image
Find the edges of the image using the arrow buttons in
the Position menu to move the image.
For standard mullions, each mullion covers 3 pixels of
the image and each button press in the Position menu
moves the image one line or pixel at a time. Move the
image so that 3 pixels on each side of the image are
behind their respective mullions. For Ultra-Thin Mullion
screens, one pixel should hide behind each mullion.
When you move the standard size (not zoomed) image,
if you find that more or fewer than 3 pixels (or one pixel)
are hidden, then the optical image size needs to be
adjusted. Do not Zoom the image to accomplish this.