564 Appendix B Image Reference
Test Brightness control adjustment
Purpose 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.
Method Center your light meter probe within the center square and adjust the monitor’s brightness
control to obtain the required light meter reading.
BriteBox
Description The primary version has a single white box in the center of active video. The box size is
controlled by the MSIZ system parameter. The secondary version adds four boxes in the
corners of active video.
Test Brightness control adjustment
Purpose 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.
Method Center your light meter probe within the center square and adjust the monitor’s brightness
control to obtain the required light meter reading.
Test Brightness uniformity
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