Clarity WN-5220-S User Manual page 39

3. Adjust Brightness
4. Display an all-white image from
the source
5. Adjust Contrast
6. Display a standard SMPTE Color
Bar pattern
7. Enable the Blue Only function
8. Adjust Saturation
WN-5220-S VideoWall User's Guide
Set the Sample values for R, G and B as close to 001
as possible while keeping the Brightness number as
high as possible.
If all the initial Sample values (R, G, & B) are greater
than 001, then reduce the Brightness number until
the first Sample value reaches 001.
If the initial Sample values are showing 001, then
increase the Brightness number until all Sample
values are 002 or greater. Stop adjusting when the
last Sample value goes from 001 to 002.
If Brightness is decreased while the Sample values
are at 001, the color range for the displayed image
will be decreased.
Frame 50823 on Reference Recordings, "A Video
Standard" test disk is an all-white image.
Set the Sample values for R, G and B as close to 254
as possible while keeping the Contrast number as
low as possible.
If all the initial Sample values are less than 254 then
increase the Contrast number until the first Sample
value reaches 254.
If the initial Sample values are showing 254 then
decrease the Contrast number until all Sample
values are 253 or less. Stop adjusting when the last
Sample value goes from 254 to 253.
If Contrast is increased while the Sample values are
at 254, the color range for the displayed image will be
decreased.
A SMPTE Color Bar pattern is available at frame
17177 on Reference Recordings, "A Video Standard"
test disk.
Select the Blue Only option with the up/down arrows
and press ENTER to enable it. At this point the
screen will show only shades of blue.
Adjust Saturation up or down until the large color
bars at the each end of the pattern match the smaller
color bars beneath them.
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