User`s guide

WN-5220-S VideoWall User’s Guide
39
A helpful technique to use when adjusting the colors and gray shades
is to “overshoot” as you adjust to emphasize the effect that the
current adjustment is having to the overall image, and then back off to
fine tune. This helps to give an intuitive feel for the process.
It is often helpful to switch between the internal white and gray
patterns and actual video images to fine tune the system. Avoid
making major changes when adjusting to the video images because
this can throw off the white or gray balance. Remember also that the
Input Level adjustment has a large effect on color. If Input Level
adjustments have not been made, color balance for live video will be
difficult. However, you may adjust Color Balance
before or after
you
do the Input Level adjustment. They do not affect each other – that
is, an adjustment in Color Balance does not affect the Input Level
adjustment, and vice versa – but they must both be adjusted properly
for the screens in the cube to match in color balance, luminance and
black level.
Color Balance is an internal adjustment which matches the color
temperature of the different lamps to each other. It is not affected by
changing the input source. After you have performed Color Balance
once, you do not need to do it again until you change one of the
lamps.