I bought this projector about 2 months ago. It is great but unfortunately, it has spent half of its lifetime in service because of some problems. I have tried searching this thread, but have only found irrelevant posts (the thread is quite long, after all)
First, I couldn't get the focus right — as many have complained before, if I set the focus sharp in the center, it would be blurry in the top-left corner and a bit less blurry in the bottom-right corner. I sent it to the service and they replaced the lens. The focus was fine after that, but I noticed a few colored rings when the displayed image was dark or black. When I adjusted the focus, I could get the specks in focus and it seemed that there was a lot of dust all across the inside of the lens. I thought that this was the fault of the service (maybe they were changing the lens in a dusty environment) so I sent the PJ back for the second time. It turns out they have replaced the lens again. Maybe the last one was scratched instead of dusty, I don't know.
Now, receiving the projector for the 3rd time, I was finally glad to see that both problems were gone.. until I put up an all-white picture. Turns out that now there is a dark-blue tint on one side of the screen. It only takes up a small part of the screen (about the width of the start button), so I am considering keeping this projector, since I am a bit fed up with sending it back all the time. Can someone more knowledgable maybe give some insight on what could be to blame? Could this be another defect with the lens or is this definitely carelessness of the service technician?
Here are pictures of this defect — http://imageshack.us/photo/my-images/14/2qw3.jpg/ http://imageshack.us/photo/my-images/16/emrn.jpg/
Please ignore the RGB rainbow effect, since that is just a side effect of the camera — not visible when actually viewing the picture. Pay attention to the dark tint near the start button.
Another problem I have seen, which doesn't bother me too much, is that the image sometimes seems to flicker a bit. Not completely on-off flicker, but a white-gray flicker. Most often observed when displaying white/bright static images. As I said, this does not bother me much because you cannot see it unless using the projector as a PC monitor and displaying something bright (like a web page). The pressing matter is the blue tint, described in the previous paragraph.
Thanks in advance.