Question about Dell 3400MP Multimedia Projector

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Dell 3400mp Lamp error.

I have a Dell 3400mp that gives a Lamp replacement error when it is turned on. We bought a new lamp for it and replaced it but it still gives the error. What else could be causing this?

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  • Anonymous May 01, 2008

    I have the exact same problem. Fan turns on, everything seems to be working great, bulb is basically new, but no light, no image. Please help!

  • RevBonobo Aug 02, 2008

    I agree with the ballast defect theory. Is there any way to repair or replace it? There has to be - it's a common technology. Every florescent light has one....

  • Anonymous Oct 27, 2008

    yes i do, mine projecting picture for few minutes then i loose picture then light , fan is still on with a LAMP signal on, after unplug and plug in power cable it's again on doing well for those few minutes, lamp has just 3 hours on



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Inside the shell that holds the lamp assembly the bottom of the lamp power connection had shifted out of position in the bottom of its harness. I had to remove the projector top to firmly reseat the bottom power connector in the correct vertical position in the harness.

Posted on Jan 14, 2012


Lamp light shows when ballast (power supply) or dc/dc converter is defective.

Posted on Jul 19, 2008


Mine does this and sometimes I have to unplug the power supply and plug it back in I have no idea why. Try that

Posted on May 21, 2008

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Hi. i recently bought a new(authentic Osram) lamp for my dell 3400mp projector because the previous lamp simply stopped working one day. i thought i'd blown it by not letting the projector cool...

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Aug 15, 2011 | Dell 3400MP Multimedia Projector

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WE have a projector that works for 15 or so minutes, then the lamp shuts off. Is that a warning sign that the lamp is failing and will soon need to be replaced?


Well you can turn on the option by browsing the menu option with system setup. And at the same time do give rest to the projector after continuous use. And do not waste lamp life. In some cases the GPU (Graphic Processing Unit) also malfunction. Hence check to make sure about this as well. And also make sure you have not set the time of shut off.

Jul 19, 2011 | Dell 3400MP DLP Projector

1 Answer

I bought a replacement lamp for my 3400mp dell projector and I cannot get the pin to seat in the receptical. My old lamp goes in and out like butter, no problems. When I try to put in the new lamp the...

Hi Patrick,

It sounds like you have a damaged or incorrectly supplied lamp. You have established that the old lamp can be fitted and removed easily. You should not need to do anything when fitting the replacement lamp that you did not need to do to remove the origional. Compare the two lamps side by side and see if you can spot any differences. Perhaps some careful measurements may help.

Lamps should have a part number which will be common on both lamps. Non OEM lamps are supplied in re-manufactured housings, the better ones (eg Diamond & Pro-Gen) use the original lamps which are either Phillips or Osram. Cheap copies use 3rd party lamps which are less effective at best.

I would advise being wary of the source of this lamp if it is not Dell.

Feb 14, 2011 | Dell 3400MP Multimedia Projector

1 Answer

Not turning on

Sounds like you need a new lamp. Do you have any indicator LEDs "on" near the power button?

Aug 15, 2010 | Dell 3400MP Multimedia Projector

1 Answer

Why is my image dark and grainy all of a sudden

how many hours are on your lamp. check your lamp hour timer in the menu.

Jun 11, 2010 | Dell 3400MP Multimedia Projector

2 Answers

Indicator showing LAMP. Does this indicate the lamp needs replacing?

Yes. The lamp is timed and the replacement indicator signals when the lamp is near end of life. If the lamp fails catastrophically it makes a mess... best to replace before that happens.

Jan 03, 2010 | Dell 3400MP Multimedia Projector

2 Answers

Projector projects red screen.

My take on this...if that pin was *shorted* to another pin in the connector and not just bent, you could be looking at a damaged video input section. The pins in the video connector consist of the 3 color signals(red--green--blue), their individual grounds, and syncing. If this has indeed happened, which is *VERY* easy to do, the projector must be repaired by a service facility.

May 05, 2009 | Dell 3400MP Multimedia Projector

1 Answer

Dell 3400mp Projector is flickering

Hello. Based on the video, return the projector and get a new one since it is still under warranty. The symptom has nothing to do with the lamp or connections. It appears to be an image processing problem on the main board. The blank part isn't distorted or scrambled, it's MISSING!

Feb 18, 2009 | Dell 3400MP Multimedia Projector

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