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skypuppy
Joined: 20 Sep 2007
Posts: 61
Location: Alabama, USA
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| Posted: Thu Dec 16, 2010 12:34 am Post subject: diff between a Marquee LC and Ultra |
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What is the difference, please, if there is one?
Thanks.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Thu Dec 16, 2010 1:37 am Post subject: |
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Hello
The anti-banding capability of the Ultra is worth mentioning.
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karmat63
Joined: 19 Dec 2007
Posts: 157
Location: Italy
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| Posted: Thu Dec 16, 2010 1:47 am Post subject: |
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| Tim in Phoenix wrote: | Hello
The anti-banding capability of the Ultra is worth mentioning.
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Do you mean Ultras are less prone to banding? Or is it a direct consequence of better geometry correction capability, that limits the use of convergence on green and so banding?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Wed Dec 22, 2010 2:59 am Post subject: |
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It's worth noting that there are a couple of easy ways to determine if your chassis is easily upgradable to an Ultra.
Look at the upper motherboard, on the silk-screened legend near where the focus board plugs in. If it's an Ultra-capable board,
that legend will include names for signals on the connector, all the way down the silkscreened legend chart. A non-Ultra capable
motherboard will show the last third of the connector spaces as having no names. Just a dash through them.
Maybe even quicker and easier, look at the back of the UMB near the heatsink. If the connecting cables to the rear boards (astig,
convergence, vertical amp) connect directly to the same computer style 2 row header connectors at both ends of the cable, then
it is an Ultra capable board. The earlier boards used the same style of connectors that the focus and H. deflection boards plug in with,
instead, and use an adapter printed circuit board with the cables. This is a holdover from the ancient days when Marquees had non-
hinged rear heatsinks. The boards on those non-hinged rear heatsinks plugged right into those larger connectors on the UMB.
By the last half of 1998, I think that every new Marquee being shipped had the Ultra compatible boards in them. You'd still need to
find a few Ultra version boards, and have to get into the factory menus to tell the projector that it's an Ultra.
CJ
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