Troubleshooting | First Checklist - 4 |
A misadjusted screen can mimic the symptoms of deflection board or CRT failures.
By performing the adjustment procedures, you might determine if one or more of the adjustments is the cause of the problem.
CRTs rarely fail.
Needless CRT replacements can be prevented by checking display adjustments, checking the possibility of other defective modules, and accepting small imperfections in screen display.
If you have any doubts about whether a CRT is defective, contact Apple Technical Support.
