Service manual

Wells-Garnder Color Vector Monitor Guide
Page 38 of 73
each other. Move the 2 purity ring magnets with respect to each other in order to center
the green crosshatch on the screen.
5. Push deflection yoke forward gradually, until the crosshatch is a uniform green (pure in
color) across the entire pattern. The deflection yoke should now be secured in place.
6. Both red and blue colors are to be checked for uniformity and true color. Slightly
reposition the deflection yoke, if necessary, to obtain optimum purity of all colors.
Tighten the yoke-retaining clamp to prevent yoke shift or rotation.
7. To make fine adjustments to the purity of each color, turn the purity rings for the best
overall purity of each color. With all three colors being displayed, you should get a
bright, uniform white color across all areas of the crosshatch pattern. Reglue the purity
ring magnets with a small amount of glue.