Question about Sony VPL PX31 Multimedia Projector

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Sony LCD Projector - burned prisms

I have a Sony Data Projector, model VPL-PX31, (about 8 years old) and the brackground color has steadily faded from black to blue. I learned that this symptom is most likely caused by the prisms slowly getting burned by the internal UV light.

Is that true, and more important, is it repairable at a cost lower than purchasing a new similar product?



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I have the same projector, but my problem is with red.

A replacement prism assembly is about $2k.

If you can get your hands on another projector for cheap, that's your only hope. You can swap out the blue lcd panel from your prism with someone else... it's a bit of mucking around, but worth it of you can.

Posted on Feb 27, 2009

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