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CHAPTER 5: Maintenance and Troubleshooting
Problem: Image is out of focus.
Possible Causes and Solutions:
• Overhead is not adjusted
correctly. Adjust overhead until
image is in focus.
• The surface of the Projection
Panel or overhead projector may
need cleaning.
Problem: Vertical lines or bleeding.
Possible Causes and Solutions:
• Adjust tint to minimize vertical
lines or bleeding from around
projected boxes or borders.
Problem: The projected colors do
not match the monitor.
Possible Causes and Solutions:
• Adjust the level and/or tint
controls. However, just as there
are differences in the displays
of different monitors, there will
always be some differences
between the computer screen
and the projected image.