Black Box AC401A - Manual (Page 32)

31
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.