Check_11 - Quantum Data 980 DP User Manual

980 DP Video Generator - User Guide Rev. A4

11.29 Check_11

11.29.1Description
In the primary version, the active video area is filled with alternating black and white pixels that form a very fine
checkerboard, as shown below. The secondary version inverts the colors in the image. The inverted image looks
almost the same as the non-inverted version.
11.29.2Test
Verify monitor resolution.
11.29.3Purpose
The resolution of your monitor should meet or exceed the design specifications.
11.29.4 Method
Adjust the brightness, contrast, and focus to their correct settings first. You should be able to see individual and
distinct pixels in each of the boxes. Failure to see distinct pixels may indicate you have a defective video amplifier,
focus correction circuit, or picture tube.
Note: If multi-colored areas appear on a mask-type color picture tube, you may have a problem with convergence,
or you may be exceeding the resolution of the picture tube.
Page 219 July 14, 2014