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Adjusting Color Temperature
Select Color Temperature in the Color Balance menu
and select from 3200°K (Warm), 5500°K, 6500ºK, and
8500°K (Cool).
Each of these selects a set of White Balance values to
give the picture a warm (3200K) to cool (9500K) appear-
ance.
To adjust an array of Bay Cat Xs for Color Balance
The object of color balancing is to make the individual
units in an array show the same colors. When we see a yel-
low car move across a video array from one display to
another, we want it to have the same color for the whole
trip, not change from yellow to maroon to orange.
The displays naturally have slightly different colors
from one display to the next, because of slight variations in
the backlights and LCDs. This cannot be avoided, but we
can compensate for it with color balancing.
Color balancing is subjective. It may seem strange at
first, but it gets easier with practice. Fortunately, you don't
have to match all the colors; you only have to match whites
and grays.
When you make all the displays look the same with
White and Gray, all the other colors will look the same. It is
not necessary to achieve a perfect white or a perfectly col-
orless gray. It is only necessary that all the displays look
alike when they display white and gray.
CAUTION
Never try to match the colors of the display
units with the Black and White Level controls
or with the Video Controls. You will not like the
results if you do.
Color Balancing
1. Turn on all the units in the array and let them warm up
for at least five minutes. The lamps must be thoroughly
warm before you color balance.
2. Open the Backlight Control and Status menu (
MENU
> A
DVANCED OPTIONS > BACKLIGHT CONTROL).
a) Set Backlight Mode Control to Manual.
b) Set (or confirm) Backlight Intensity to 100%.
3. For each Bay Cat X in the array, do the following:
a) Open the Color Balance menu on all displays in the
array. (
MENU > ADVANCED OPTIONS > COLOR BAL-
ANCE).
✎ If the array has never been color balanced, make
sure you start with the same color temperature
setting on each unit. If you are not interested in
achieving a specific color temperature, use the
default of 8500K, which is the brightest. If the unit
has been color balanced before, it will display
C
USTOM in its color temperature setting, because
the balance values don’t match any of the pre-set
color temperatures.
b) Highlight Test Pattern and use the left-right arrow
keys until it says White.
✎ Always use the internal Test Patterns for color
balancing, not an external pattern.
4. When all displays are white, find the least bright dis-
play in the array. This will be the “baseline” display,
and you will not adjust it. All other displays will be
adjusted to this baseline display.
✎ Why pick the “least bright” display? Why not pick
the brightest and adjust to it? When the White
value is 100, the display is a bright as it can get.
You are adjusting for slight variations in backlight
brightness.
5. Choose a display next to the baseline display and adjust
its White values (red, green, and blue) to make it match
the baseline display. Concentrate on the center of the
Backlight Control
Auto Backlight on
Turn Backlight off with no Source (DPMS)
DPMS Delay 1 hr
Backlight Control Mode Manual
Backlight Intensity 100