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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sat Dec 19, 2015 12:49 pm Post subject: |
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Yes I changed one of the amps on the neck boards.
The caps made a big difference to the 808s. The driver boards I am using are rev 3.
I am now looking at using the hybrid chip from the 919 neck board on the 120mhz 808s neck board.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Sat Dec 19, 2015 1:33 pm Post subject: |
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Great work man. Keep it up!
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701s->runco933->8500ultra->cinemax->9500mp->919 splitpack + cinemax
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sat Dec 19, 2015 9:27 pm Post subject: |
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It will be interesting to see if you get simular improvements on the 9 series. One day I will get one to play with.
We watched Avatar last night. It looked totally 3d. Very happy.
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sat Jan 16, 2016 5:14 am Post subject: |
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I broke one of the pins on the little RGB board that plugs into the switcher. So I got some ridged coax and used it to replace all 3 connectors. The boards are now soldered together but it has reduced some video noise.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Sat Jan 16, 2016 7:42 pm Post subject: |
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Nice! Right now I have this bandwidth on my Seos. Very few changes where made but the difference with unmodified is rather big I wonder how this will look with the ultra sharp focus astig of the Barco.
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701s->runco933->8500ultra->cinemax->9500mp->919 splitpack + cinemax
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sun Jan 17, 2016 8:12 am Post subject: |
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I removed the Gamma Quad Multipliers from the Blue and Red today. That with the coax joiners has improved the 1:1 a little.
I will get some better shots when the camera is charged. I used the phone. The phone makes it look very noisy.
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Sun Jan 17, 2016 8:25 am Post subject: |
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| gregstv wrote: | | I broke one of the pins on the little RGB board that plugs into the switcher. So I got some ridged coax and used it to replace all 3 connectors. The boards are now soldered together but it has reduced some video noise. |
Great solution. I have also broken one of those and its been sitting in a box waiting for repair so you have given me an idea on what to do. Why not just connect the coax cables directly?
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Sun Jan 17, 2016 9:18 am Post subject: |
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| gregstv wrote: | I removed the Gamma Quad Multipliers from the Blue and Red today. That with the coax joiners has improved the 1:1 a little.
I will get some better shots when the camera is charged. I used the phone. The phone makes it look very noisy. |
How does that improve green? It is certainly an important thing but those double ad835 ar on red and blue only.
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sun Jan 17, 2016 9:32 am Post subject: |
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| redfox001 wrote: | | gregstv wrote: | I removed the Gamma Quad Multipliers from the Blue and Red today. That with the coax joiners has improved the 1:1 a little.
I will get some better shots when the camera is charged. I used the phone. The phone makes it look very noisy. |
How does that improve green? It is certainly an important thing but those double ad835 ar on red and blue only. |
I think the little coax cables between the small board and the switcher board has helped.
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sun Jan 17, 2016 9:33 am Post subject: |
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| km987654 wrote: | | gregstv wrote: | | I broke one of the pins on the little RGB board that plugs into the switcher. So I got some ridged coax and used it to replace all 3 connectors. The boards are now soldered together but it has reduced some video noise. |
Great solution. I have also broken one of those and its been sitting in a box waiting for repair so you have given me an idea on what to do. Why not just connect the coax cables directly? |
There are diodes on the little board.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Sun Jan 17, 2016 9:56 am Post subject: |
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| gregstv wrote: | | redfox001 wrote: | | gregstv wrote: | I removed the Gamma Quad Multipliers from the Blue and Red today. That with the coax joiners has improved the 1:1 a little.
I will get some better shots when the camera is charged. I used the phone. The phone makes it look very noisy. |
How does that improve green? It is certainly an important thing but those double ad835 ar on red and blue only. |
I think the little coax cables between the small board and the switcher board has helped. |
Hi if you can make some better pictures that would be great. Also I see the 1:1 is mirrored, is it in a corner or on the tube face? Great work! I have to get a screen first thing so I can show them better.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Sun Jan 17, 2016 10:03 am Post subject: |
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I think that with little changes we are getting very close to the Marquee and that shows the Neckboards on a Barco might not be the problem and that a Barco does have the bandwidth.
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Posted: Sun Jan 17, 2016 10:15 am Post subject: |
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| redfox001 wrote: | | gregstv wrote: | | redfox001 wrote: | | gregstv wrote: | I removed the Gamma Quad Multipliers from the Blue and Red today. That with the coax joiners has improved the 1:1 a little.
I will get some better shots when the camera is charged. I used the phone. The phone makes it look very noisy. |
How does that improve green? It is certainly an important thing but those double ad835 ar on red and blue only. |
I think the little coax cables between the small board and the switcher board has helped. |
Hi if you can make some better pictures that would be great. Also I see the 1:1 is mirrored, is it in a corner or on the tube face? Great work! I have to get a screen first thing so I can show them better. |
Yes its a corner shot at 1080p@60. The HD8 rev B lens are not to bad when focused correctly.
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