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On Screen Troubleshooting: Difference between revisions
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These are some examples of common on screen issues, and their potential causes and remedies. | These are some examples of common on screen issues, and their potential causes and remedies. | ||
=Contrast Degradation= | |||
Signs of contrast degradation are a washed out image with pale colors and milky blacks. | |||
Degraded contrast can be caused by dirty projection ports or lenses; reflected light from walls, floors, or ceilings making its way back to the screen; ambient light from exit signs or aisle lights; reflected light from within the projection mechanism (for example a damaged shutter with a flaking non reflective coating); poor shutter alignment; or poor lamphouse alignment. | |||
=Focus= | =Focus= | ||
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Focus uniformity can also be compromised by dirty lenses or port windows. | Focus uniformity can also be compromised by dirty lenses or port windows. | ||
=Ghosting= | |||
[[Ghosting]] | |||
=Jitter= | =Jitter= | ||