I have tried cleaning the lens to no avail my Google searches point towards possible debris being stuck between color wheel and lens and compressed air may help but most links say get it fixed.
Similar issue with some details: here
This user has similar issue: here
Photo from link above this is not mine:
My projector
Specs
http://www.geeky-gadgets.com/acer-launches-nvidia-3d-vision-ready-projectors-02-03-2010/
Some photos and a video
It is far more common on LCD monitors and televisions. The worst part is that the industry deems a certain number of dead and stuck pixels "acceptable" and won't exchange them under their warranties. That is why I would never buy one.
ReplyDeleteEllen@Entreprises LM Reparation de moteurs