How to clean the projector's lens of dell 1409x

This is probably the lamp. If you replaced the lamp then you need to reset the lamp counter in the menu settings. You should clean the filter out as well.

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Check it. I'm sure that you get the details you want.

http://www.manualslib.com/manual/384928/Dell-1409x.html

please must note, and never clean it by cleaning wipes or paper, it will leave marks on the lens.
and nor to clean it by wipe or alcohol. it will easily break the protection film on the lens.

such the dust on the surface, you can blow it by blast.
and others, you can clean it by a good chammy

if if lens, filters etc were clean and workable, perhaps it is the problem of DMD chips.

hi,
If the lamp light is solid orange then, the lamp of your projector is faulty. You have to repalce the lamp.
ok

hi,
You have to check the color wheel of your projector. Every dlp projector have color wheels to provide color. if the rotation of the color wheel is not in corrct RPM this will happen. Also you have to check the color wheel RPM counter sensor. There will be a sensor near the color wheel To count the rotation of the color wheel. First of all you have to remove these two items carefully and clean it well.Then refix it and check. Added the picture of color wheel for your refference.
ok

Do you have any LEDs indicating that the projector is getting power?
If not, it is unlikely to be the lamp which is the problem and more likely a problem with the mains supply outlet, extension cable, mains input cable, mains input fuse (all easy to check) or maybe the internal power supply (requiring professional repair).
If there are LEDs lit they will indicate a fault, for which you will either need to post the exact sequence and timings, or consult the manual.

You have function key (FN) that you need to hold down while pressing the icon screen key or CRT key depending on the model of your laptop at the same time. If you toggle this 3 times each provides a no image to the projector or an image to the laptop screen or projector and laptop image.

Have the same problem. Did you find a solution?