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Troubleshooting Symptom Charts/Video
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- 10
Video
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Colors are too green,
red, or blue, and the
screen is unreadable
1 Ensure that the video card or computer video port is good by
connecting a monitor that is known to be good.
2 Ensure that the video cable is properly connected and the
thumbscrews are secure. If a video card is used, the video
cable must be properly attached to it.
3 Adjust cutoff and white balance. See “Cutoff and White
Balance” in Adjustments.
4 Doublecheck items 1 and 2.
5 Replace the video and main deflection boards. See “Main
Deflection, CRT/Video Boards and Rear Fence” in Take Apart.
Adjust cutoff and white balance. See “Cutoff and White
Balance” in Adjustments.
No color Ensure that the setting for the number of colors in the Monitor
Control panel is correct and not set to black & white. See the
monitor user manual.