Film-Tech Forum ARCHIVE: Christie Solaria One

This is topic Christie Solaria One - slight blue tint in forum Digital Cinema Forum at Film-Tech Forum ARCHIVE.

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Posted by Greg Wolf (Member # 9807) on 01-25-2017, 01:07 PM:

I'm trying to figure out what might be causing a very slight blue tint on a Solaria One. Only shows up on either a black (or very dark)image or no input. When I go to white there's a very faint yellow where the blue would be in the black source. Not uniform across the frame, it almost looks like something is off in the optics or lamp/reflector alignment, though everything looks to properly installed & aligned. IMB was replaced a few weeks ago. Any ideas?

Posted by Marco Giustini (Member # 4544) on 01-25-2017, 05:16 PM:

I believe there was a similar thread highlighting a similar issue with a Christie, just a few weeks ago.

Posted by Greg Wolf (Member # 9807) on 01-26-2017, 09:11 AM:

I don't think it's the same issue, this is constant & doesn't look like I'm losing signal from one of the colors like a cable short would be. It's virtually impossible to see when normal content is running, only when it's black or almost black content.

Posted by Ioannis Syrogiannis (Member # 3235) on 01-26-2017, 01:33 PM:

It is very much likely that there is dirt (or something else disabling the light go through) on one of the DMDs.
I also think there is a similar thread, but older than that.
Either way, a sequence of projecting the color test patterns (Christie has both the main RGB colors and the combination of them. Magenta, Cyan and Yellow) would give you a hint.

Posted by Stephan Shelley (Member # 8587) on 01-26-2017, 02:09 PM:

Have you checked the convergence?

Posted by Marco Giustini (Member # 4544) on 01-26-2017, 03:18 PM:

Do you mean this thread?

Posted by Ioannis Syrogiannis (Member # 3235) on 01-27-2017, 12:45 AM:

quote: Marco Giustini
Do you mean this thread?

Yep.

Posted by Marco Giustini (Member # 4544) on 01-27-2017, 05:15 AM:

cool, but I was referring to Greg when he said it's not the same issue [Smile]

Posted by Greg Wolf (Member # 9807) on 02-03-2017, 04:54 PM:

Thanks Ioannis, I will check the DMD's for any obstruction/dirt.