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Troubleshooting Symptom Charts/Video
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Video
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Screen flickers 1 Some flickering is normal for grayscale displays.
2 Set display to 1-bit mode (black and white) in Monitors
Control Panel.
3 Check display cable connection.
4 Duo 210/230: Replace display.
5 Duo 250/280: Replace display (CPRC/Int’l only).
6 Replace logic board.
7 Return computer to Apple.