Quantum Data 801GC, 801GF, 801GX manual Aspect Ratio Hatch10 Hatch12 Hatch24

	Aspect Ratio			Hatch_10			Hatch_12			Hatch_24
	W : H		Decimal	Boxes		Boxes	Boxes		Boxes	Boxes		Boxes
				Vertically	Horizontally		Vertically	Horizontally		Vertically	Horizontally
	16 : 9		1.777É	10		16	10		16	18		32
	5 : 3		1.666 É	10		16	10		16	18		30
	4 : 3		1.333 É	10		14	12		16	24		32
	1 : 1		1.000	10		10	12		12	24		24
	3 : 4		0.750	14		10	16		12	32		24
Test	Convergence adjustment (color monitors only)
Purpose	In order to accurately produce an image on a color
	monitor, the three electron beams in the CRT must
	meet (converge) at the exact same location at the
	same time. Lines displayed on a misconverged
	monitor appear as several multicolored lines and
	the transitions between different colored areas
	contain fringes of other colors.
Method	The	convergence				adjustments of				most		color

monitors fall into two main categories.

The first set of adjustments, usually called Static Convergence, aligns the three beams in the center of the display. The idea is to turn on all three guns and adjust the various magnets on the convergence assembly to produce all white dots in the center of the display. The convergence assembly is located on the neck of the CRT. Different monitors and CRT types may each require their own magnet adjustment sequence.

After the center of the display is properly converged, the outer areas are adjusted by using the monitor’s Dynamic Convergence controls. The number of controls, the area of the screen they affect, and their adjustment procedure depends on the monitor you’re testing.

4-32 Chapter 4: Built-In Images Model 801GC, 801GF & 801GX¥Rev. X1