Apple Multiple Scan 20 Display Spécifications télécharger pdf (Page 16)

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.

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Apple Multiple Scan 20 Display Spécifications Page 16