Quantum Data 980 DP - Box_50 Mm, Box_64 Mm, Box100 Mm, Box150 Mm, Box200 Mm, Box250 Mm

980 DP Video Generator - User Guide Rev. A4
Page 210 July 14, 2014
11.20 Box_50mm, Box_64mm, Box100mm, Box150mm, Box200mm, Box250mm
11.20.1Description
The primary version has a solid white box in the center of the active video. Depending on the image selected, the
box is sized by square millimeters. If there is room, information on the current format appears below and to the left
of the box. This shows the number of active pixels and lines as well as the horizontal and vertical scan rates. A
forward slash (I) after the number of active lines indicates the format is interlaced.
Note: The box will be the correct size only if the correct physical active video size is set in the format.
The Box_50mm image is shown below. The secondary version draws a black box and black text on a white
background.
11.20.2Test
Brightness control adjustment.
11.20.3Purpose
The wrong brightness setting may cause other tests such as Contrast, Focus, and Beam Size to be invalid. An
accurate brightness setting helps give repeatable measurements throughout other tests.
11.20.4Method
Center your light meter probe within the center square and adjust the monitor’s brightness control to obtain the
required light meter reading.