BOXLIGHT 9000-INT Manual page 50

M a i n t e n a n c e
42
a n d T r o u b l e s h o o t i n g
Adjust the resolution of your monitor if it's greater than
•
1280x1024. Only this resolution at 75 Hz or less will display on
the projector.
Problem: Image is out of focus
Turn the projection lens to focus the image.
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Make sure the projection screen is at least 6 feet (1.8m) from the
•
projector.
Check the projection lens to see if it needs cleaning.
•
Problem: Image and menus are reversed left to right
Rear projection mode is probably turned on. Switch back to for-
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ward projection from the Controls menu. The image should
immediately return to forward projection. See "Rear Projec-
tion" on page 34.
Problem: Image and menus are upside down
Ceiling mode is probably turned on. Turn off the mode from
•
the Controls menu. The image should immediately return to
forward projection. See "Ceiling" on page 34.
Problem: The projector displays vertical lines, "bleeding" or
spots
Adjust the brightness. See "Brightness" on page 27.
•
Check the projection lens to see if it needs cleaning.
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Problem: No sound
Press the mute button.
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Adjust volume.
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Verify audio/input connections.
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Adjust audio source.
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Problem: Image is "noisy" or streaked
Try these steps in this order.
1 Deactivate the screen saver on your computer.
2 Turn
Auto Image
Image" on page 31.
off and then back on again. See "Auto