Quantum Data 802BT User Manual page 670

Purpose
Method
Master
Description
660 Appendix B Image Reference
An out-of-focus monitor displays fuzzy graphic images and poorly formed, hard-to-read
characters when text is displayed on the screen.
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 of the screen 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.