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aenglish
Joined: 21 Jan 2009
Posts: 78
TV/Projector: Barco BG808s (2002 build)
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| Posted: Fri Mar 13, 2009 6:03 pm Post subject: Marquee SKEW adjustment |
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I've had my Marquee 8501 up on the cieling for a week or so now learning all the set ups. When doing geometry, I have to adjust the SKEW almost to the limit to squate up the green raster. I don't think the pj positioning would be responsible for this type of distortion, but what could it be? I've been through the mechanical and focus coil adjustments a couple of time now and will be doing it again this weekend so I'm looking for any advice.
Also, while I'm at it this weekend, I'll be doing the flapping again as well. What is the best way to measure the 17mm gap?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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aenglish
Joined: 21 Jan 2009
Posts: 78
TV/Projector: Barco BG808s (2002 build)
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| Posted: Fri Mar 13, 2009 11:21 pm Post subject: |
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When I zero out the convergence, the raster is level, just skewed more right at the top and left at the bottom (BTW, this is ceiling mounted). I can staighten this out with the skew adjustment, but it's almost maxed. Could this be the scan yoke out of position?
Great article by the way, thanks for pointing it out.
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There are 10 kinds of people in the world, those who get binary and those who don't.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Fri Mar 13, 2009 11:26 pm Post subject: |
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| aenglish wrote: | When I zero out the convergence, the raster is level, just skewed more right at the top and left at the bottom (BTW, this is ceiling mounted). I can staighten this out with the skew adjustment, but it's almost maxed. Could this be the scan yoke out of position?
Great article by the way, thanks for pointing it out. |
Not sure what you mean here but it sounds like the scan yoke is not on the horizon
as in the tech tip form Tim Martins site.
Can you take a picture of the tube face? even through the lens.... lower the contrast to about 30 for the pic.
Athanasios
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Mar 14, 2009 2:24 am Post subject: |
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I'm not sure if it's a projector problem or something with their owners  I've always felt that Marquee owners were a bit off skew by nature, Especially the ones from NY 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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