What's wrong with it? if you are not getting a signal, first swap cables, reset the settings to factory default, and make sure the resolution matches the source. if all else fails, send it in to an infocus service center. it may just be a plug issue or a cold solder joint. at the most, you'll have to replace the main board (which would be about $500 plus labor). try av solutions in ny. they're really good. www.avsolutionsny.com