C H A P T E R 7
Troubleshooting your interactive projector
66 smarttech.com/kb/170295
To resolve a partial, scrolling or incorrectly displayed image
1. Select Start > Control Panel.
2. Double-click Display.
The Display Properties window appears.
3. Click the Settings tab.
4. Click Advanced, and then click the Monitor tab.
5. Verify that the screen refresh rate is 60 Hz.
Unstable or flickering image
If the projector’s image is unstable or flickering, the frequency or tracking settings on your input
source could be different from the settings on your projector.
I M P O R T A N T
Write down your setting values before adjusting any of the settings in the following procedure.
To resolve your unstable or flickering image
1. Check the display mode of your computer’s graphics card. Make sure it matches one of the
projector’s compatible signal formats (see Video format compatibility on page 41). Refer to your
computer’s manual for more information.
2. Configure the display mode of your computer’s graphics card to make it compatible with the
projector. Refer to your computer’s manual for more information.
3. Optionally, reset the projector as described in Accessing the service menu on page 70 to adjust
the frequency and tracking to their original values.
I M P O R T A N T
This action resets all values to their defaults.
4. If the previous steps don’t resolve the flickering image, replace the projector lamp (see
Replacing the projector lamp module on page 48).
Unaligned projected image
Alignment errors occur when the projected image isn’t perpendicular to the screen. Alignment errors
can occur when you project your image on an uneven surface or a wall that has obstructions, or if you
swivel the projector greater than 2" from its vertical center line as indicated in the SLR 60wi mounting
template (smarttech.com/kb/170271).
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