Christie FHQ841-T, Руководство пользователя

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Operation
FHQ841-T LCD Panels User Manual 30
020-000735-01 Rev. 1 (06-2014)
PLUGE patterns vary but generally consist of some combination of black, white and gray areas
against a black background. The example above includes two vertical bars and four shaded boxes.
Select Black Level from the Picture Settings menu and press
◀
or
▶
to adjust the brightness so
that:
• The darkest black bars disappear into the background.
• The dark gray areas are barely visible.
• The lighter gray areas are clearly visible.
• The white areas are a comfortable level of true white.
• The image contains only black, gray and white (no color).
Color
“Color” (“Hue” or “tint”) is essentially the ratio of red to green in the color portion of the image.
When Color is decreased, the image appears redder; when it is increased the image appears
greener. To adjust the color, use a blue filter when viewing the color bar pattern, as you would for
adjusting color saturation.
Select Color from the Picture Settings menu and press
◀
or
▶
to adjust it until the cyan and
magenta color bars (on either side of the green bar) appear to be a single shade of blue.
Sharpness
“Sharpness” is the amount of high-frequency detail in the image. To adjust sharpness, select
Sharpness from the Picture Settings menu. On your external test pattern source, select a pattern
like the one shown below. Adjust as needed, looking for white edges around the transitions from
black to gray and differently-sized lines in the “sweep” patterns at the top and bottom. Lower the
sharpness setting to eliminate them.
i
Contrast and Black Level controls are interactive. A change to one may require a subtle
change to the other in order to achieve the optimum setting.
i
Like the brightness and contrast controls, the color and tint controls are interactive. A
change to one may require a subtle change to the other in order to achieve the optimum
setting.