My acer X1160 data projector one day had a flickering white dot on the screen and then it stayed on. Over the next couple of weeks many more appeared exponentially and now has thousands of them. it looks like the stars in the night sky. i changed the bulb unit over and this did not solve the problem. any suggestions as to what this could be. it is about 3 1/2 years old.

Need more info. But initial suspicion is there is a problem with your projector.

Are they stationary and always in the same position? You may have bad pixels.

Are the dots there with no signal going to the projector?

What is connected the the projector? Detail the video path - try all the sources. The dots still there and in the same position on all sources?

It is probably your projector.

If some of your sources are fine - the problem might be from a connected source.

Hope this helps.

if it is the color wheel issue, you can replace it, i have this acer X1160 color wheel, if you need please contact me

It is because of the DMD chisp faulty, you have to buy a DMD chips replaced. fortunately, this model DMD chips is 8060-6038B, it is not expensive, and normal, for any fuIt is because of the DMD chisp faulty, you have to buy a DMD chips replaced.
fortunately, this model DMD chips is 8060-6038B, it is not expensive, and normal,
for any further help, please contact merther help, please contact me

You will most likely have to get the DMD chip replaced. I suggest you get a quote from the local Acer agent as to how much it would cost for this repair.

Sounds like a technical problem, no matter how long I've had this I would call the manufacturer and try and have them troubleshoot and then possibly have it looked at or replaced without you having to fork over any money.

Check how many hours your bulb has used as it will start to break down on the inner chrome coating.

make a cleaing, if it still is full white dots, it should be problem of DMD chips,

buy a 8060-6038B DMD chips and instal it. only cost USD184

PLEASE DC POWER IS FAULTY PL GET IT REPAIRE OR REPLACE

Your computer is probably using the projector as a second screen instead of displaying a copy of the laptop screen.
The quickest way to confirm is to try moving your cursor (mouse) off the right-hand side of the screen. Does it then show up on the projector? If so, then you can grab and move windows back and forth between the two screens.


If that solves it for you, please be sure to click the thumbs-up.
If not, add a comment and I'll try to explain

Dust it with clean cloth, & carefully blow it with can of compressed air every so often. Do not frequently disasemble it just to clean it.