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| Troubleshooting |
| Symptom Charts/Video (Continued) - 5 | |
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| Video (Continued) |
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Screen jitters or | 1 | Verify that adjacent computer equipment is properly | |||
flashes |
| grounded. Move electrical devices away from monitor. | |||
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| 2 | Temporarily shut off all fluorescent lights in area. | |
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| Check that all ground cables are secure. | ||
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| 3 | Replace analog board. | |
Out of focus | 1 | Perform focus adjustment. Refer to “Focus” in Adjustments | |||
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| 2 | chapter. | |
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| Replace analog board. | ||
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| 3 | Replace CRT only if one part of display remains out of focus | |
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| despite adjustment of focus controls to their limits. | |
