Apple lc 580.performa 580cd Servicehandbuch
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Troubleshooting
Symptom Charts/Video
(Continued)
- 6
Video
(Continued)
Screen is completely
black except for
single vertical or
horizontal line
displayed
1 Check yoke cable connection with power off.
2 Replace analog board.
3 Replace CRT.
Predominant color
tint or color cannot be
adjusted
Perform video adjustments. Refer to “Video” in Adjustments
chapter.
Picture breaks into
diagonal lines, or
picture rolls
vertically or
horizontally
1 Perform geometry adjustments. Refer to “Geometry” in
Adjustments chapter.
2 Replace analog board.