Teledyne 980 DP1.4, User Manual, Page: 351 / 507

980 DP 1.4 Video Generator / Analyzer - User Guide Rev. A1
Page 351 June 16, 2017
16.42.3Method
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. This method involves turning
on all three guns and adjusting 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 under test.
16.42.4Test
Focus adjustments.
16.42.5Purpose
An out-of-focus monitor displays fuzzy pixels which, in turn, result in poorly formed and hard-to-read characters.
16.42.6Method
On monitors with a single (static) focus adjustment, adjust the control for the best average focus over the entire
screen. The focus at certain locations should be within specified limits.
Some monitors have a static and one or more dynamic focus controls. The sequence for adjusting them and the
areas of the screen they affect depend on the monitor under test.