Apple Macintosh TV Spécifications télécharger pdf (Page 20)

Troubleshooting Symptom Charts/Video

(Continued)

- 5

Video

(Continued)

Screen jitters or

flashes

1 Verify that adjacent computer equipment is properly

grounded. Move electrical devices away from monitor.

Temporarily shut off all fluorescent lights in area.

2 Check that all ground cables are secure.

3 Disconnect floppy drive, CD-ROM drive and hard drive.

4 Replace analog board.

Out of focus 1 Perform focus adjustment. Refer to “Focus” in Adjustments

chapter.

2 Replace analog board.

3 Replace CRT only if one part of display remains out of focus

despite adjustment of focus controls to their limits.

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Apple Macintosh TV Spécifications Page 20