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Make and Model: Sony VPL-PX31 projector. I've started seeing black and white lines flash throughout the screen. I've heard this might be a problem with the mainboard. If so, what is it's expected lifespan once this starts happening?

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Hey,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

Hope this helpout in solving....

Posted on May 27, 2011

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