BOXLIGHT CD-455m Projector User Manual


 
38
Maintenance & Troubleshooting
Make sure your computer’s video board is installed and con-
figured correctly.
Make sure your computer has a compatible video board. The
projector isn’t CGA, EGA or SXGA compatible.
If you’re using Windows 98:
1
Open “My Computer” icon, the Control Panel folder and
then the Display icon.
2
Click the Settings tab.
3
Verify that the Desktop area is set to 1024x768 or less.
Problem: Color or text not being projected
You might need to adjust the brightness up or down until the
text is visible. Refer to “Brightness” on page 21 for more infor-
mation.
Problem: The screen resolution is not right
Make sure the computer’s video card is set for a resolution of
no greater than 1024x768.
Problem: Image isn’t centered on the screen
Move the projector to reposition the image.
Reposition the image using the menu. Refer to “Horizontal
position” on page 26 and “Vertical position” on page 26.
Be sure the projector lens is at a 90 degree angle to the screen.
Problem: Image is too wide or narrow for screen
Adjust the zoom or projector placement.
Adjust the resolution of your video card if it’s greater than
1024x768.
Problem: Image is out of focus
Turn the projection lens to focus the image.
Make sure the projection screen is at least 5 feet (1.5 m) from
the projector.
Check the projection lens to see if it needs cleaning.