Question about NEC LT 260K Multimedia Projector

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NEC LT260 PROJECTOR NOISE

My LT260 was on as usual last night and all of a sudden it started making a terrible noise. It sounds like something making contact with a cooling fan inside the unit. Anyone experience this or can advise me on how to open the projector up and investigate?

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To open this projector, you need to undo six screws at the underside of the case. That means you have to turn the projector upsidedown.
Pls note that one of these scews is a little hidden under the carrying handle.
After removing the screws, return the projector to it's normal 'up-side' up, standing position.
Remove the bulb cover srews and remove the bulb cover.
Lift up the top cover carefully starting from the front then all together.
The cooling fan is mounted very near the bulb assembly.
Carefully check the fan blades for any obtacles, wires or even a broken fan blade, that could be causing the noise.
Baba Anji.

Posted on Dec 30, 2007

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Same thing happened to me I took it apart and the disk for the colors shattered. It spins on a high speed motor completely out of balance. The heat of the light dried out the disk. I am currently looking to replace the disk, but that is my problem

Posted on Jan 03, 2011

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Posted on Jan 02, 2017

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Security code for Nec lt260 multimedia projector


The menu and logo password are the only ones you can reset by yourself, if you lose your master password you must contact NEC to get the release code.

See page 113 on the manual :


NOTE: Do not forget your keyword. However, if you forget your keyword, NEC or your dealer will provide you with your Release Code.

After you call NEC and get the code do the following:

1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect that
the projector is security-protected.
2. Select [Projector Options] → [Security] from the menu and press hte ENTER
button.
The Release Code input screen will be displayed as well as your Request
Code (24 alphanumeric characters).
3. Enter your Release Code in the Release Code Input screen.
The projector will turn on.
* If the projector is turned on by entering the Release Code, your Security
will be disabled.

find contact page from here or call the retailer:
NEC Global
Here is also the remote

Sep 10, 2008 | NEC LT 260K Multimedia Projector

1 Answer

Security code for Nec lt260 multimedia projector


The menu and logo password are the only ones you can reset by yourself, if you lose your master password you must contact NEC to get the release code.

See page 113 on the manual :


NOTE: Do not forget your keyword. However, if you forget your keyword, NEC or your dealer will provide you with your Release Code.

After you call NEC and get the code do the following:

1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect that
the projector is security-protected.
2. Select [Projector Options] → [Security] from the menu and press hte ENTER
button.
The Release Code input screen will be displayed as well as your Request
Code (24 alphanumeric characters).
3. Enter your Release Code in the Release Code Input screen.
The projector will turn on.
* If the projector is turned on by entering the Release Code, your Security
will be disabled.

find contact page from here or call the retailer:
NEC Global
Here is also the remote


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The procedure is the same for LT220, LT240 and LT260.

Here is the user manual

LT260/LT240/LT220 User’s Manual

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5 Answers

A terrible sound


It's the lamp. The same exact thing happened to me, my projector started making a loud whinning noise and the picture quality got really dim. At first i thought it was the fan too but after alittle online research i found out that that when the lamp bulb shatters it does this, so i went a got a replacement and it fixed all the problems. :)

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