Apple Macintosh LC 575 Specifications download pdf (Page 23)

Troubleshooting First Checklist/ - 2

First Checklist

Important:

Read this checklist before you replace a module. Avoid

needless module replacement.

Do you know that...

• The CRT raster will not always resemble a perfect rectangle.

CRT tolerances allow for some distortion. Additional distortion

can be caused by magnetized metal objects (desks, file

cabinets, etc.). Move the unit to a different location if you

notice raster bowing or bent raster edges.

• Jitter, faint lines, or screen movement can be caused by

external interference such as electronic devices and

fluorescent lights. Move the unit to another room or building to

help determine if external interference is the source of the

problem.

• A misadjusted screen can mimic the same symptoms as analog

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Apple Macintosh LC 575 Specifications Page 23