Quantum Data 802BT User Manual
Page 49
802BT/802R Video Test Generator User Guide
39
3. Repeat steps 1 and 2 for all formats and test images. Use the following guidelines to
verify proper operation:
•
When testing geometry with the Hatch images (for example, TVHatch and
Hatch20), look for distortion with concave or convex lines near the periphery of the
display. Look for irregular spacing on the cross hatch patterns.
•
When testing photometry such as chrominence, use the
,
images. Look for missing
bars which may indicate a dead or unconnected channel. Also, look at the transition
between the bars; they should be sharp and distinct. Each bar also should be
uniform in color and intensity across its entire width.
•
To test luminance you can use the
(grayscale portion) image. To test
gamma correction you can use the
(checkerbox portion) image. The
detailed methods for verifying these parameters on the
image are
provided in Appendix B, “
•
When testing focus with the Focus or Text images, the characters in all areas of the
display should be well-formed and in focus.
•
When testing resolution with the Grill images, you should be able to see individual
and distinct stripes in all areas of the display at all four resolutions.
•
When testing for centering use the TVOutline and Outline images. The detailed
methods for verifying centering with the Outline images (
) are provided in Appendix B, “
•
When testing for high voltage regulation with the
outline at the edges of the image. They should stay in place and not pull away from
the area of the large white blinking patch (when it appears).