Question about NEC MultiSync VT48 Multimedia Projector

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NEC Model VT48 - need to clean filter

We have the above projector in our primary school. Unfortunately, the person who installed it a year or so ago did not leave us a manual. When we switch it on now it has a sign saying "Please Clean Filter". It tells you on the bottom to clean the outside of the filter with a vacuum cleaner, but I don't know where the filter is! I have tried cleaning the outside of the projector with a vacuum cleaner, but it didn't make any difference. I would be really grateful if some one could tell me how to clean the filter.
Kate Blackie

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  • Anonymous Jan 13, 2009



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This is a solution for the VT 480 by NEC for filter clean. on the left side there are two slots that have dust filters which can slide vertically to reveal micro screens that one can blow, tap vigorously, or vacuum to remove any dust build up. I hope this helps you with your unit.


Posted on Jan 14, 2009

  • Will Jan 02, 2013

    I have attempted many times to remove what appeared to be a filter on the front or the right side. I finally got it out and it's not a filter. But I have a blue Haze on my screen after replacing the bulb. I've blown it out with air but still no change. I have a seminar in 2 weeks I need this projector for. Any Suggestions?




When you clean the filter turn your projector on, go to MENU->RESET->CLEAN FILTER HOURS
and your done... :)
If you're having problems, write to


Posted on Dec 03, 2007


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Posted on Jan 02, 2017

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