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g90 1080p?

 
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Sunstone



Joined: 11 Aug 2006
Posts: 44
Location: Rockledge Fl.


PostLink    Posted: Tue Mar 23, 2010 8:53 pm    Post subject: g90 1080p? Reply with quote

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on the projector ratings list it says the g90 has 135mhz bandwith. then how does it do 1080p at 160mhz? i not saying it can or can't . just want to know from the experts
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dturco



Joined: 06 Feb 2009
Posts: 3750
Location: Eastern Shore Maryland

TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner


PostLink    Posted: Tue Mar 23, 2010 8:56 pm    Post subject: Reply with quote
Well 1080p only needs 67.43? by 59.94, Ok lets just 68x60. So no problems at all for a G-90.
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WanMan



Joined: 19 Mar 2006
Posts: 9668
PostLink    Posted: Wed Mar 24, 2010 10:23 am    Post subject: Reply with quote
Sunstone, dt is talking abut refresh rates.
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CIR Engineering



Joined: 25 Aug 2008
Posts: 2460
Location: Chicago USA & Berlin Germany


PostLink    Posted: Wed Mar 24, 2010 12:34 pm    Post subject: Reply with quote
I just love posting this photo... G90 running 1080p @ 72Hz and doing it very well Embarassed



craigr
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dturco



Joined: 06 Feb 2009
Posts: 3750
Location: Eastern Shore Maryland

TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner


PostLink    Posted: Wed Mar 24, 2010 7:53 pm    Post subject: Reply with quote
CIR Engineering wrote:
I just love posting this photo... G90 running 1080p @ 72Hz and doing it very well Embarassed



craigr


Bite Me Razz
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Sunstone



Joined: 11 Aug 2006
Posts: 44
Location: Rockledge Fl.


PostLink    Posted: Wed Mar 24, 2010 8:08 pm    Post subject: Reply with quote
i glad it can ,mine is in shipping now. hope it gets here in one piece
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mp20748



Joined: 12 Sep 2006
Posts: 3147
Location: Camp Springs

TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
PostLink    Posted: Wed Mar 24, 2010 8:49 pm    Post subject: Re: g90 1080p? Reply with quote
Sunstone wrote:
on the projector ratings list it says the g90 has 135mhz bandwith. then how does it do 1080p at 160mhz? i not saying it can or can't . just want to know from the experts


The 135mhz figure is not correct technically. It's just a good marketing figure, because no one ever put any of the Commercial projectors through real bandwidth testing, so things got out of control a bit and that's why the specs were so hyped on bandwidth ratings.

The 135mhz figure is higher than any other CRT projector out there at the time, but the actual bandwidth rating is not higher than a few of the other CRT projectors manufactured at the time.

The neck boards in a G90 is fairly high in bandwidth rating. They probably will do better than 135hz, but the input board in no way would handle 135MHZ.
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Sunstone



Joined: 11 Aug 2006
Posts: 44
Location: Rockledge Fl.


PostLink    Posted: Thu Mar 25, 2010 2:40 am    Post subject: Reply with quote
with the bandwith mods you came up with ,will it do 135mhz? and are your mods finished ? how to get them?
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mp20748



Joined: 12 Sep 2006
Posts: 3147
Location: Camp Springs

TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
PostLink    Posted: Thu Mar 25, 2010 2:49 am    Post subject: Reply with quote
Sunstone wrote:
with the bandwith mods you came up with ,will it do 135mhz? and are your mods finished ? how to get them?


Absolutely. But most importantly for the G90, the mods will produce a much cleaner/tighter video chain. So regardless if you're running 720P, 1080P 60 or 72hz, the image would be better.


They're almost done. I thought I would have been finished with it last week. I'm now only tweaking the gamma mini board to work with the internal gamma menu.
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overclkr



Joined: 08 Mar 2006
Posts: 3476
PostLink    Posted: Thu Mar 25, 2010 10:17 pm    Post subject: Reply with quote
mp20748 wrote:
Sunstone wrote:
with the bandwith mods you came up with ,will it do 135mhz? and are your mods finished ? how to get them?


Absolutely. But most importantly for the G90, the mods will produce a much cleaner/tighter video chain. So regardless if you're running 720P, 1080P 60 or 72hz, the image would be better.


They're almost done. I thought I would have been finished with it last week. I'm now only tweaking the gamma mini board to work with the internal gamma menu.


Congrats Mike! That is great to hear. Smile

Looks like the G90's are gonna have to come off of the ceiling huh? Wink
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Sunstone



Joined: 11 Aug 2006
Posts: 44
Location: Rockledge Fl.


PostLink    Posted: Thu Mar 25, 2010 10:40 pm    Post subject: Reply with quote
my g90 just got in !! it has perfect tubes, not bad for 1325.00 and he gave me a used g70 , just to get rid of it.it has some tube ware but good for backup
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mp20748



Joined: 12 Sep 2006
Posts: 3147
Location: Camp Springs

TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
PostLink    Posted: Fri Mar 26, 2010 1:56 am    Post subject: Reply with quote
overclkr wrote:
mp20748 wrote:
Sunstone wrote:
with the bandwith mods you came up with ,will it do 135mhz? and are your mods finished ? how to get them?


Absolutely. But most importantly for the G90, the mods will produce a much cleaner/tighter video chain. So regardless if you're running 720P, 1080P 60 or 72hz, the image would be better.


They're almost done. I thought I would have been finished with it last week. I'm now only tweaking the gamma mini board to work with the internal gamma menu.


Congrats Mike! That is great to hear. Smile

Looks like the G90's are gonna have to come off of the ceiling huh? Wink



I would definitely like to get a modified board in one of those G90's and see how it compares to the other with the stock board in it.


Yep... the bandwidth improvement and cleaner image combined with a very special High Performance GAMMA circuit.

The end results -- Improved sharpness, detail, colors, clarity and depth of field. Imagine that being stacked into a more intense image..Mr. Green
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