Question about NEC MultiSync MT830 Multimedia Projector

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NEC MT800 Projector with Vertical Lines in picture

Hi, My GF's NEC Multisync MT800 yesterday has started to show vertical lines across the whole picture. Now they change colour depending on the content of the picture but mainly appear to be red and green. I am wondering if it is something to do with the colour "panels" starting to fail. Any adivice on what it might be and a possible way forward would be great. Thanks.

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  • adamcundiff1 Nov 10, 2007

    I have had my NEC mt830+ projector for about a month. Got it on Ebay. it was fine for the first few weeks. Now when I run it over an hour (sometimes it will go longer) it starts to get very annoying vertical lines. It really distorts the picture. If anyone can help that would be great.

  • Anonymous Jan 28, 2008

    bought this off of ebay a few weeks ago and just the last few days I have had a problem of 3-4 yellow, blue, purple lines on the right side of the screen. Is this a problem with the lamp? I only have 700 hours on the lamp

  • Anonymous Mar 29, 2008

    WE ARE ALL SUCKERS. I BOUGHT THIS PROJECTOR OF EBAY AND GUESS WHAT, SAME LINES. I BELIVE THE MORAL OF THE STORY IS DON'T BUT EXPENSIVE ELECTONICS ON EBAY.

  • REDNECK-76 Mar 29, 2008

    I GOT MINE ON EBAY TOO, AND GOT THE SAME LINES. I HAVE NOTICED IT ALSO DOES IT DURING START-UP AND FADES AFTER ABOUT 40sec. MY BULB USAGE SHOWS 40 HRS WHICH IS B.S. THE BULB HAS A BURN MARK ON IT SO I THINK MAYBE THE PROBLEM IS RELATED TO THE BULB. ALSO THE PROBLEM SEEMS TO BE GONE FOR THE FIRST HOUR OR SO EVERY MORNING. THE ONLY VARIABLE I CAN THINK OF IS TEMP. MY FILTER IS CLEAN AND SO IS THE INSIDE OF THE PROJECTOR. ANYWAY I DON'T HAVE THE BALLS TO THROW ANOTHER COUPLE HUNDRED BUCKS DOWN ON A BULB SO TO HELL WITH THIS P.O.S. I THINK THE MORAL OF THE STORY IS DO NOT BUY EXPENSIVE ELECTRONICS ON EBAY.

  • elvis3 Jun 11, 2008

    i am after a spares or repairs nec mt800

    any one got one

    just bought on off ebay and they said it just needed a new bulb so bought one

    and its just showing yellow when turned on

    thanks

  • Anonymous Oct 09, 2008

    the lines are horizontal and cause distorted picture

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The ghosting problem is a combination of both the lcds and driver boards in which case neither need to be truely replaced.. They use a specific voltage to transmit data to the lcds.. Each lcd is different and the driver board is programmed by the factory for the EE v.com setting. Unfortunatly with nec, they do not offer a service mode to go in and adjust the ee settings to correct the electrical convergance. So the only way to fix the problem is to replace the lcd with a newer one who wasnt worn out from long term heat.

Posted on Feb 24, 2009

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Try cleaning the filter on the bottom of the unit, might be overheating issue

Posted on Mar 16, 2008

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The problem is the LCD driver board. It is not something that can be fixed without a replacement board.

Posted on Jan 21, 2009

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Posted on Jan 02, 2017

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