Quantum Data 801GC, 801GF, 801GX manual After the center of the display is properly converged

	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 you’re testing.
Test:	Sweep Linearity Adjustment
Purpose:	In order 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 you’re testing. Any deviation
	should be within your spec limits.

4-74 Chapter 4: Built-In Images Model 801GC, 801GF & 801GX¥Rev. X1