Question about NEC MultiSync VT580 Multimedia Projector

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NEC LT280 will not fire the lamp. The lamp should have plenty of life left in it, last time it was checked the measurement was in the hundreds of hours of bulb life left. I don't get a lamp replacement light, just the six cycle red blinking light saying lamp will not fire. Any ideas what the fix might be for this? Did the ballast go bad? Is this a problem others have had? Thanks in advance for light you may be able to shed on this (no pun intended).

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5 Suggested Answers

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Posted on Jan 02, 2017

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Gigatech
  • 259 Answers

SOURCE: Status light blinking red

If it is a lamp error try this:
When the lamp exceeds 2100 hoursof service, the projector cannot turn on and the manu is not displayed. Do the following:
For VT670/VT470 Press the help button on the remote control for a minimum of ten seconds.

For VT570/VT47 Press and hold the power and the exit buttons on the remote control simultaneously for a minimum of ten seconds. When the lamp time clock is reset to zero, the lamp indicator goes out. Hope this helps! :]

Posted on Feb 27, 2008

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  • 1 Answer

SOURCE: Blinking status light

Replacing the lamp with an old one was helpful for me. Good news: the projector itself not faulty. Bad news: I have two projectors with the same issue at the same time (the lamps were replaced also at the same time) after only 400 hours of running.

Posted on Jun 23, 2008

  • 1 Answer

SOURCE: lamp won't light / status indicator blinking red

Replace the bulb.

Posted on Jun 10, 2009

heathgr
  • 442 Answers

SOURCE: I have a NEC LT280

Select the Menu, then RESET function, then CLEAR LAMP HOURS.

Posted on Apr 13, 2011

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I replaced the lamp on my NEC LT280, but am unable to reset the lamp so that the projector works again.


Whe the lamp exceeds 2100 hours (up to 3100 hours in ECO mode) of service, the projector cannot turn onand the menu is not displayed. If this happens, press the HELP button on the remote for 10 seconds to reset the lamp clock back to zero. When the lamp clock is reset to zero, the LAMP indicator goes out.

Here is the URL for the User Manual:
http://www.necdisplay.com/documents/UserManuals/LT380_user_manual.pdf

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That is a problem with the lamp. Replace it with a known good one.

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Many projectors will not turn on, or will turn on and immediately shut down, when the lamp needs replacing. How long has the projector been in use? Most lamps say they're good for up to 2000 hours, but in my experience they're only good for 1400 to 1500 hours. Also, check that the electrical cord is attached tight.

Jan 13, 2011 | NEC MultiSync LT280 LCD Projector

1 Answer

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If the unit is powering up but the lamp is not igniting, most likely there is a problem with the ballast.(Ballast is the circuit that starts and then maintains lamp current) When starting the projector, it is sometimes possible to look directly into the lens and see small "lightning" flashes. This is the high voltage ignition current trying to start an electrical arc in the lamp. You can also hear a "clicking" sound--same thing. If the ballast is defective, the unit must be repaired at a facility--send it in directly--not through a store. If the unit is totally dead(no lights at all), there usually is a main fuse located near the power cord(inside the unit) that blows. If you've never had tech training, don't attempt to open the unit--it is very easy to accidentally damage components unless you know exactly how to remove the top cover.

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There is lamp cover at bottom of projector, unscrew it, take it off, you will see Lamp inside that also fixed with screw, unscrew it and take it out, place new lamp and put thing in same way.

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let it cool down then remove the lamp and see if it looks shattered or burnt- if it is you have solved your problem-change lamp!

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I wanted to know how to tell how many lamp hours are left on a NEC VT47 LCD Projector- also how does the lamp hours work? if you have 2000 hours does that mean the lamp life is over or you have 2000 hours...


if the bulb has 2000 hours that means it is supposed to last 2000 hours of continual use. It is hard to keep track of the lamp hours though unless the projector has a timer built in. It depends on the manufacturer as to if it is telling you 2000 hours left or used. There should be a way to switch this. But a lamp rated for 2000 hours has 2000 hours of being on is expected lifetime

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