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57 | CHAPTER 5 – MAINTAINING AND TROUBLESHOOTING YOUR SMART BOARD
685ix INTERACTIVE WHITEBOARD SYSTEM
Your Connected Laptop or PowerBook® Computer Image Isn’t Projected
Laptop and PowerBook computer settings can interfere with projector operations.
Write down your setting values before adjusting them.
Some laptop computers deactivate their own screens when a second display device is
in use. Every laptop computer has a different way to reactivate the display screen.
Refer to your computer’s manual for further details.
Unstable or Flickering Image
If the projector’s image is unstable or flickering, you may have different tracking
settings set on your input source. Write down your setting values before adjusting any
of the settings in the following procedures.
To resolve your unstable
or flickering image
1. Adjust the Tracking setting in the on-screen display. See page 94.
2. Change the tracking settings on your computer. Refer to your computer’s manual
for more information.
3. Optionally you can attempt a projector reset, as described on page 67, to adjust
your tracking to the original value. This resets all values to the original factory
state.
Your Image Has a Vertical Flickering Bar
If the projector’s image is displaying a vertical flickering bar, you may have different
frequency settings set on your input source. Write down your setting values before
adjusting any of the settings in the following procedures.
To resolve your vertical
flickering bar
1. Adjust the Frequency setting in the on-screen display. See page 94.
2. Check the display mode of your graphic card. Make sure it matches with one of
the projector’s compatible signals in the list starting on page 32. Refer to your
computer’s manual for more information.
3. Reconfigure the display mode of your graphic card to make it compatible with the
projector. Refer to your computer’s manual for more information.
4. Optionally, reset the projector, as described on page 67, to adjust your frequency
to the original value. This resets all values to their original state.