Vidikron Vision 65, Vision 75 operation manual Typical Gray Bar Pattern for Adjusting Contrast

Operation

Select Brightness from the Picture Adjust menu and press ENTER. Adjust the level 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 and press ENTER. 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

Note require a subtle change to the other in order to achieve the optimum setting.

48 Vidikron Vision Model 65/Model 75 Installation/Operation Manual