Question about Multimedia Projectors
When we connect the sound output from the computer to the sound board the projections on the screen will have a backgound roll
Earth loops !! try a 1:1 audio transformer ( ground-loop isolator) available in car audio shops
Posted on Sep 26, 2008
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Here's what the User's Manual says:
Using the Remote Control
To advance PowerPoint slides with the projector's remote, you
must connect the USB cable on the projector's computer cable to
the computer. See page 8 for more information.
Point the remote control at the projection screen or at the front or
rear of the projector (not at the computer). The range for optimum
operation is about 30 feet. If you point the remote at the
projection screen, the distance to the screen and back to the projector
must be less than or equal to 30 feet. For best results, point
the remote directly at the projector.
If you are displaying presentations in Microsoft® PowerPoint®,
you can use the remote's Previous and Next buttons to navigate
through your presentation while in Slide Show mode.
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