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Topic: 2 same projectors (CHRISTIE LWU505), but one cannot display 16:10, the other one can.
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Joined: Nov 13, 2014
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Hi,

My problem :

l have 2 projectors, bothes the same : CHRISTIE LWU505. l have to beam on two screens with a 16:10 ratio. For this l have to use 2 different computers. One is a macbookpro, 2nd is an lmac. With the 1st projector l can display an image with 16:10 ratio (true ratio), all fine ! On the 2nd, l cannot select "true" ratio mode, and l cannot select à 16:10 ratio. Even if l switch the computers, the problem persist : l cannot select "true" ratio in the menu, and l cannot display in 16:10, ratio is like blocked in 16:9.

Projectors are the same, but when l look closer the information menu, the "system" informations are not the same. On the first, "system" is : "D-WUXGA 2". On the second (the one that fail to 16:10) it's "D-1080 P" (see attached picture).

My questions :

Is this problem due to a different version of sofware ? Or did l missed a preset to force to "true" format or 16:10 ? The problem still remains even if l switch the computer, that makes me feel the problem comes from the projector. But they both are the same.. So l think about a software difference...

Well, at this point l admint my fail to resolve this myself and l look forward for you wisdom and knowledge :-) :-)
[Edited by FranzKarl on Nov 14, 2014 at 2:15 AM]

Attachments:

Info menu from rebel projector (*edited)

1000 × 750 pixels (191.89 KB)
  
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You want to be sure in the menus that you have the screen aspect ratio set to 16:10. It may be set to a 16:9 screen.

You want to be sure firmware is the same on both models as well.

The second item may require a call to Christie to make it happen, or to have a tech come out and look at the models.

I'm really not sure why two models would have any differences at all.

You are connecting to both projectors the exact same way?

The problem stays with the same projector right? It doesn't follow the computer?
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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Hi AV_Integrated,

"You want to be sure in the menus that you have the screen aspect ratio set to 16:10. It may be set to a 16:9 screen."
--- bothes are set on 16:10.
"
You want to be sure firmware is the same on both models as well."
--- yes l want, you can compare with the screen capture of the 2nd projector. (Sorry l was tired, l edited the attaced picture on 1st post, l posted first the picture from "working" projector). Now you have the 2 screen capture of the 2 projectors menus.

You can see a difference with "horizontal synchro" :

- working projector : 74.0 KHz.
- rebel projector : 67,5 KHz.

what does it means ?

"The second item may require a call to Christie to make it happen, or to have a tech come out and look at the models."
--- Yes we are making some calls right now, and what l did not mention is that we are sending signal via "SPATZ CATONE-TX" boxes to convert RJ45 to HDMI. We also try to change the RJ45 cables.

"You are connecting to both projectors the exact same way?"
--- Yes and to switch RJ45 cables did not affect anything, problem still remains.

"The problem stays with the same projector right? It doesn't follow the computer?"
--- problem still remains even if we switch the computers.
[Edited by FranzKarl on Nov 14, 2014 at 2:30 AM]

Attachments:

Info menu from "working" projector

1000 × 750 pixels (193.35 KB)
  
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It looks like the firmware is the issue to me. The 1080 firmware isn't correct for the model of projector, and makes no sense at all.

While, I don't think the SPATZ units are the issue, and certainly the cat-5e cables between them should be the issue. I would strongly suggest that for testing and troubleshooting, you pick up a couple of HDMI cables and run them directly from the computers to the projectors. They should be short HDMI cables, and I understand you may have to move a few computers around to make this all work. I would do so to ensure that it's the projectors which require service.

I see no reason why the firmware would be different between the two models, and that could definitely impact things.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.