Runco VL-46 Manual de instalación descargar pdf (Pagina 42)

Operation

32 Vidikron VL-40 and VL-46 Owner’s Operating Manual

PRE

IMINAR

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 Brightness from the Picture Adjust menu. Using the left- and right-arrow ( )

buttons, 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).

Contrast: On your external test pattern source, select a stepped, gray-bar pattern like the

one shown in

Figure 4-3.

Figure 4-3. Typical Gray Bar Pattern for Adjusting Contrast

Select Contrast from the Picture Adjust menu. Using the left- and right-arrow ( )

buttons, adjust the contrast to a point just below which the white rectangle starts to increase

in size.

Brightness and contrast controls are interactive. A change to one may

require a subtle change to the other in order to achieve the optimum

setting.

Note

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Runco VL-46 Manual de instalación Pagina 42