Planar PD7170 User Manual

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Brightness: On your external test pattern source, select a PLUGE pattern. (PLUGE 

is an acronym for “Picture Line-Up Generation Equipment.”) Figure 4-3 shows a 

typical PLUGE pattern.

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 Main menu. Use the   or   buttons to 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 4-4. 

Select Contrast from the Main menu. Use the   or   buttons to adjust the 

contrast up until the top two bars become almost the same brightness, then 

down just until the brightness change between these bars is consistent with the 

other bars.

Below Black

Above Black