Question about NEC MultiSync MT840 Multimedia Projector

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Won't turn on

I push the power button and the power light turns green for a little bit and then it turns orange and the status light blinks red continously. I think when my friend was toying with it, he took off the lamp cover while it was running. Any solutions?

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6 Suggested Answers

  • 1 Answer

SOURCE: NEC VT47 lamp won't light

I have 3 of these and all failed within weeks of each other with the same problem. The status light blinks 6 times telling me the lamp failed to ignite.

I fixed all 3 by opening them and shuffling motherboards around. I didnt order any new parts, call tech support or anything fancy. Just swapped boards.

Maybe they will keep working, maybe they wont. It might be worth a shot if you've run out of warranty though. It's not going to get any busted-er.

Posted on Nov 28, 2007

  • 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

  • 259 Answers

SOURCE: Blinking status light

6 cycle (0.5 sec On,
0.5 sec Off) is a lamp error!
0.5 sec Off)
Lamp fails to light. Wait a full
minute and then turn on again.
Even though the lamp is not old there may be a defect in the lamp. I know the lamps are expensive but this may be the problem. If you have a lamp that was removed due to age but still worked you could use the lamp to test is a link to the user manual:

Hope this helps. :}

Posted on Apr 02, 2008

  • 1 Answer

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

Replace the bulb.

Posted on Jun 10, 2009

  • 1 Answer

SOURCE: NEC VT 595 wont turn on. Just red blinking light

I had this same problem with 2 NEC VT595 projectors. My problem was that there was a broken "tab" on the lamp cover (the plastic cover that slides in place over the lamp) that is supposed to depress a switch which insures the lamp cover is in place before operating the projector. The tab was broken in half and not making the connection there for causing the blinking status light (.5 sec on, 2.5 sec off) indicating a lamp housing or cover error.

Posted on Aug 26, 2009

  • 6 Answers

SOURCE: No lamp and a flashing red status light

The lamp has run out of its operating hours which is normally 3000 hrs. Replace the lamp and you will be alright.

Posted on Aug 31, 2009

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