Ya I noticed this on some ending credits of various movies. The text goes out of focus then back in. Its the only time I notice it, so its something I can live with. But on the other hand, if this can fixed via a firmware upgrade I might send it in to them.
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All Optoma EP739 or EP745 Owners please Read
Anyone that has a 745 or 739, please try using a vga to component or straight VGA cable and play Star Wars Episode I and see if on the opening yellow scrolling storyboard the projector goes in and out of focus on some parts. Also you can check the closing credit (blue on black text) and see if it does the same thing. I have confirmed that it does this on other owners projectors and just want to see if it does them on all or just some. If you can't do this test, also please replay saying you can not, but it should do this on pretty much any movie when in dark scenes (ie X-men2, Harry potter, etc) try it out and post your finding, because if everyones does this we need to get Optoma to fix this. Thanks for trying and me and Littlerm look forward to your responses. This has to be done in P.SCan Progressive scan) with a DVD player or if using a computer it is already
P.Scan signal >
Also to fix this I have found if you have pull down a DVD menu while the movie is playing (ie subtitle slection menu) it clears right up and as soon as you get rid of the menu from teh screen the video goes back to behaving iradically in and out of focus on dark scenes. I am talking with Optoma Engineers but they want to know if this is just a few or if it is many.
P.Scan signal >
Also to fix this I have found if you have pull down a DVD menu while the movie is playing (ie subtitle slection menu) it clears right up and as soon as you get rid of the menu from teh screen the video goes back to behaving iradically in and out of focus on dark scenes. I am talking with Optoma Engineers but they want to know if this is just a few or if it is many.
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It does not seem to be a focus problem exactly, but that is the easiest way to descripe, basically it is like a haze comes over the screen for a breif moment, but the thing that really confuzes the issue is that havinf a DVD menu down prevents it from doign this. If we could find out what happenes to the signal or projector when the DVD menu is down, I think Optoma could fix this problem farily quickly. But you definatly do not need to use the star wars dvd, it happens in most DVD's that have dark scenes. List off some of your dvd's and I will let you know which ones it would do it for. Are oyu using DVI or VGA port? Thanks for the update though, lets keep this thread going >
Well it is startign to look like a model manufactuer problem ,it will be interesting to see how many more owners are havin this problem. Thanks for the input so far >
Yes, I noticed that to Bart, that bringing up the projector menu does not help, must be a seperate internal signal that overlays the main image. I do not think it is a low signal problem, as I have tried numerous lentghs of cables all the way from 4 foot VGA up to 50 foot VGA and VGA/Component and they all show this same problem. Will the engineer I am working with should receive my projector some time soon, hopefully today, he will then test it. It would be interesting to see if anyone that has a ep745 model has this same issue, so far I think these are all 739's that have been reported. Lets keep them coming >
Awesome Rob, thanks for taking the lead on this! Of course I would want to know how to get into the service menu, and tweak this thing to perfection. I hope someone from Optoma will read this thread.
Thanks,
Barthold
I hope someone from Optoma will read this thread.Thanks,
Barthold
Just to give an update, I have been transfered over to the USA headquaters in Cali, they are doing some tests and getting back to me tomorrow with some answers, The guy I am now talking with Cori, seems to agree with my first impression on this problem, that for some reason the projector is trying to deinterlace a progressive scan signal. Of course this not a a for sure, but that is his first impression. He will be calling me tomorrow and I will update then again >
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