Question about InFocus Proxima UltraLight LX1 Multimedia Projector

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Wobbly screen image

Thanks to ebackhus for the "screen door" feedback, but I'm not sure that's the issue. My grid has a wobbly or rippled quality to it. The guy I bought it from said it was a phase problem.

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Are you connected to a PC (DIGITAL SIGNAL)or a video source?
If you are getting a jumpy screen from a digital source like a LATTOP/PC you many be feeding a signal that's not equal to the resolution of the projector itself.l There is circuitry in the projector to attempt to convert the resolution of the picture received into the screen resolution. It's an imperfect process, especially if you have a higher screen resolution going in than the 1024 x 768 native resolution of thie LX-1.
What you need to do is set the video output of the computer to that resolution.
The original LX-1 Infocus units had a less capable resolution resolving circuit than their later units.
In a portable, it's possible to setup two resolutions - one for the Laptops own screen resolution and another for the auxilliary (external) resolution of a secondary display or a projector attached there. Modern Laptops usually have a resolution of 1400 x 800 pixels or higher (mine are 1920x 1200), The LX1 can not handle that resolution well at all. If you set the external output to something slightly higher like 1200x800 it will handle it better, but you still will have problems, especially on the older units from Norway.

(I seem to remember some control over phasing in the LX-1 setup, too. but this might be more applicable to a video input rather than a digital one.)

Posted on Apr 18, 2010

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Posted on Jan 02, 2017

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