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| Troubleshooting |
| Symptom Charts/Video - 10 | |
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| convergence | 1 | This problem rarely indicates a defective module. Some |
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Out of | |||||
(color bleeds from |
| misconvergence is normal, especially around edges of screen. | |||
text or lines) |
| Contact Apple Technical Support if you’re uncertain whether | |||
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| 2 | misconvergence is within specification. | |
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| Replace analog/video board assembly. | ||
Black screen spots | Replace CRT. | ||||
(burnt phosphors) |
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Picture breaks into | 1 | Perform geometry adjustments. Refer to “Geometry” in | |||
diagonal lines, or | 2 | Adjustments chapter. | |||
picture rolls | Replace analog/video board assembly. | ||||
vertically or |
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horizontally |
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