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13651
January 15th, 2004 03:00
3200MP w/Component Inputs
I have a new 3200MP that I'm having problems with brightness while using component inputs. I've tried several sources and different cables, but I always get the same results. And it really looks like when the projector switches to component it dims the screen. I'm basing that on the white box that appears with a signal change. It goes from bright white on VGA to a light grey on component. DVD look great from VGA on the PC. Then switch to component on a progressive scan dvd player(s) with component inputs and I've got to jack up the brightness and contrast. But it still doesn't look as good as the VGA, and leaves me with light gray bars on the top and bottom of the screen (16:9). I would just run everything through my PC, but I can get the component inputs from my Xbox into my PC. And I can't plug both VGA and component in at the same time to the projector.
I've also notice dust behind the lens that I can't get to in order to clean.
And is there anything that can be done about what appears to be a spectrum or rainbow on the screen with bright objects. I believe this is the reason my wife is getting sick to her stomach and giving her a headache when she watches the screen.
Thanks
Jason


Karell
2 Intern
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2.5K Posts
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January 15th, 2004 15:00
Thank you for using the Dell Community Forum.
have a new 3200MP that I'm having problems with brightness while using component inputs. I've tried several sources and different cables, but I always get the same results.
Different video signals will yield different results.
You should use the projector adjustments to set the picture as close as possible to your liking.
Are all your devices progressive scan?
The Dell projectors do not support progressive scan, do you have a non-progressive scan device you could try?
This would narrow it down to a problem with progressive scan devices, or just an inherent side-effect of DLP technology projectors.
I've also notice dust behind the lens that I can't get to in order to clean.
There is no way to clean dust behind the lenses.
Is there anything that can be done about what appears to be a spectrum or rainbow on the screen with bright objects.
Unfortunately not, this is normal for DLP technology projectors.
All the Dell projectors display this "rainbow" effect depending on what types of images or video you are using.
Some images or video may show this effect more then others.
Here is some information you may find of interest.
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Problem:
My projector produces color that is slightly off tint.
Dicussion:
The problem with slightly off tint colors is inherent to DLP technology.
For example, anything that should be pure yellow may appear to be yellow with a slight green tint.
This problem is most noticeable on yellow but could occur on other colors as well.
The Projectors use DLP (Digital Light Processing) technology to produce a high quality, bright (high lumen) picture in the smallest possible footprint.
The problem with slightly off tint colors is inherent to DLP technology and will occur on any DLP projector, regardless of manufacturer.
This problem is inherent to DLP technology and can not be fixed by replacing the projector or changing the bulb.
All DLP projectors will have this problem, which is common for all projectors in the equivalent price range/feature.
In some cases, lowering the "White Intensity" may help.
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hansolos
2 Posts
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January 15th, 2004 18:00
have a new 3200MP that I'm having problems with brightness while using component inputs. I've tried several sources and different cables, but I always get the same results.
Different video signals will yield different results.
You should use the projector adjustments to set the picture as close as possible to your liking.
Are all your devices progressive scan?
The Dell projectors do not support progressive scan, do you have a non-progressive scan device you could try?
This would narrow it down to a problem with progressive scan devices, or just an inherent side-effect of DLP technology projectors.
I don't think it has anything to do with my source, because I've tried both a HD (Resolution YUV) source and two Progressive Scan or whatever you would like to call it (Analog YPrPb) source both using the component inputs and the projector seems to dim after selecting those sources the same. The whole screen is bright and colorful for a second and then dims. And it's funny you say that it doesn't support progressive scan because the specs for the 3200MP say this "Compatibility with NTSC, NTSC4.43, PAL, PAL-M, PAL-N, SECAM, and HDTV (1080i, 720P, 576P, 480i/P)" progressive scan for most dvd players falls into the 480P or if you have a nice dvd player 720P.
I realize that the reason there are adjustment in the project is to correct for this. I just don’t understand how it can go from being almost perfect with factor setting using VGA inputs. And then be dim and washed out using component inputs. I’ve also notice that the project changes the level of RGB under color setting depending on what the source is. I've played with this settings but I can't come close to the image I get using VGA at 1024x786, and I'm not talking image quality because of a different resolution either. The picture is just brighter and more colorful with a much better black level.
Even if I get the settings to something decent how to I save those settings and be able to switch back and forth depending on source (VGA to component)?
I've also notice dust behind the lens that I can't get to in order to clean.
There is no way to clean dust behind the lenses.
I’m really upset with the fact that there is dust inside what appears to be a sealed unit. That is poor quality control, and I’d like to get this fixed.
Jason
Karell
2 Intern
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2.5K Posts
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January 15th, 2004 19:00
The solution to most of your problems would be to get the projector replaced.
If the replacement projector dims like the old one, then you know it is just how the projector works.
Dust behind the lenses cannot be cleaned out, I asked my engineer contact about this and your other questions.
He stated that dust behind the lenses should not affect the image quality.
If you are getting *A LOT* of dust behind the lenses, then the projector is being used in an environment where
it should not be used.
The projector can accept a progressive scan signal, but it does not support progressive scan.
The projector uses "motion adaptive hardware deinterlacing" which is a method for deinterlacing video images.
True progressive scan hardware does not deinterlace the video image.
The problem may come for "presets" that are programmed into the projector when it detects a certain video mode.
Unfortunately there is no way that I know of to save user settings.
There are some things you can try.
-When you have connected the component inputs, try changing the signal type, RGB, YCbCr, YPbPr.
-When you have connected the component inputs, try resetting the projector to factory settings.
-When you have connected the component inputs, press the R-Sync button to re-detect the signal type.
mabullitt
25 Posts
0
January 17th, 2004 14:00
Also,
1. Make sure you have made the correct connections and make sure they are pushed in all the way. If one is loose, it can ruin the picture.
2. Reset your projectors settings to "factory default" and then select "video mode"