Quantum Data 802R Guide de l'utilisateur télécharger pdf (Page 714)

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704 Appendix B Image Reference

After the center of the display is properly converged, the outer areas can be adjusted by

using the monitor’s “Dynamic Convergence” controls. The number of controls, the area of

the screen that they affect and their adjustment procedure is dependent upon the monitor

under test.

Test Sweep linearity adjustment

Purpose To present an undistorted display, the horizontal and vertical sweeps of the electron beam

across the face of the CRT should be at uniform speeds. Any non-uniformity in the sweep

will cause portions of an image to be stretched while other portions will be compressed.

Non-linearity in a monitor can show up in several ways. It may be present across the entire

screen, a large portion of the screen, or it may be localized in a very small area.

Method Adjust the display’s linearity controls so that all of the boxes in the crosshatch are identical

in size. You can measure the boxes with a ruler or with a gauge made for the monitor

under test. Any deviation should be within your specification limits.

Taffeta

Description

TVoutLin

Description Equivalent to Outline1 image but it uses anti-aliasing for vertical bars and double

horizontal lines, which reduces flickering.

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Quantum Data 802R Guide de l'utilisateur Page 714

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