PROBLEM | LIKELY CAUSE | POSSIBLE SOLUTION(S) | |
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| Projected image | Projector too close to screen | Move projector away from |
| smaller than screen |
| screen |
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| Zoom not set correctly on | Adjust zoom |
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| zoom model |
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| No image on the | Power switch off or | Computer must be on for |
| monitor | projector not running | computer monitor to display |
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| Turn on projector and light the |
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| lamp |
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| Cable not connected | Connect cable |
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Streaks on monitor | Video cable for monitor | Check and reset cable | |
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| plugged into projector is | connection |
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Faint screen | Low CONTRAST or | Adjust CONTRAST and/or | |
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| BRIGHTNESS settings | BRIGHTNESS |
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Jittery, fuzzy text | Out of sync | Adjust SYNC | |
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| Adjust Dot Clock |
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Image | Position controls (arrow keys) | Adjust position controls | |
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| Compatibility problem | Make sure the projector is |
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| compatible with one of the |
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| standards listed in Appendix A |
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| Misalignment or damage to | Projector requires service |
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| optical elements |
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Cannot get entire | Compatibility problems | Make sure projector is | |
image on screen; |
| compatible with one of the | |
scrambled image |
| standards listed in Appendix A | |
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| Wrong video resolution | Set video resolution on |
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| computer to 640 x 480 |
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“Shimmering” colors | SYNC out of adjustment | Adjust SYNC | |
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Colors weak | Weak video signal | Check for faulty video source, | |
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| bad connection, or frayed cable |
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Getting excessive | CONTRAST and/or | Adjust CONTRAST and/or | |
white or washout | BRIGHTNESS too high | BRIGHTNESS | |
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Troubleshooting