Question about NEC LT 260K Multimedia Projector

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Projector bulb drive circuit failure.

My NEC LT260K does not light up the lamp everytime it is switched on.
When it eventually does, it goes off within minutes, (the lamp drive panel heat-sink gets very hot) after that it takes for ever to get it to light up again. Sometimes the next day!
The green light comes up all the time as is normal.
The picture is ever so bright and clear when the lamp comes on..
What can I do? I am an electronics repair-man with a lot of experience, how can I get the schematics?
Anji, Nigeria

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  • Anonymous Apr 07, 2008

    I am having the same problem. The porjector comes on with a good picture for a minute or two then goes off. The status light then goes red and goes into a six blink sequence. The power light goes amber and is constant. I replaced the bulb about two months ago which cleared the problem for a short time.

  • kpaul79 Oct 30, 2008

    I am having this same problem with about 10 of these projectors, I am in charge of about 65 rooms with these units. They are dropping like Flies as we say. It doesn't look like anyone knows anything about this.



6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 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


SOURCE: Lamp will not come on

try pressing and holding the enter button on the projector for about 30 seconds - this resets it. It worked for me!!

Posted on Feb 20, 2008

  • 259 Answers

SOURCE: NEC VT47 Lamp type VT70LP will not power up 2 red lights spear Lamp not working

When the lamp exceeds 2100hoursof 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

  • 115 Answers

SOURCE: lamp not lighting

Reset the lamp and try it.

Posted on Mar 29, 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

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