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AnalogRocks
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Joined: 08 Mar 2006
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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 Link Posted: Fri Nov 23, 2012 7:13 am Post subject: |
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Just take the H+V cables and T them together with a BNC T fitting.
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dkap
Joined: 14 Aug 2008
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| Link Posted: Fri Nov 23, 2012 7:24 am Post subject: |
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| AnalogRocks wrote: | | Just take the H+V cables and T them together with a BNC T fitting. |
Ooh, I didn't know there is such a thing. Looking at pictures, it seems like the side input of the T could make the twist-on aspect of the BNC a problematic fit. Or, are they generally designed to rotate 90* so the T is vertical, as opposed to being horizontal and interfering with the adjacent terminals?
With that, I would be able to run the computer's VGA to the 5-BNC breakout and directly to the Barco, correct? No need for a separate video card, transcoder, etc. (I've guessed wrong too many times now to be confident!)
Any thoughts on how the video quality of a 15' VGA cable compares to what I was previously running through a Canare Component of equal length? Seeing how each of the Canare's 3 cables is nearly the thickness of the entire VGA cable, I have to think there's some loss there. If I'm going to all this trouble, I'd rather not sacrifice a bunch of quality.
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Fri Nov 23, 2012 7:38 am Post subject: |
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I know what you mean about the Canare component cables. I have a set and they are nice.
Cables are subjective. Test them and see. If you see ringing or an over all soft picture get a better cable.
You could always go for a DVI-I to RGBHV BNC female break out cable and run 5 runs of RG6 Quad Shiled or Beldin co-ax. That makes for a nice picture too.
BNC T shouldn't be too difficult to fit unless your BNC jack on the projector is too close to the case.
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dkap
Joined: 14 Aug 2008
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| Link Posted: Fri Nov 23, 2012 7:45 am Post subject: |
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| AnalogRocks wrote: | | Cables are subjective. Test them and see. If you see ringing or an over all soft picture get a better cable. |
Unfortunately, I have no way to test the Canare with the HTPC currently. Doing so would require a video card with component TV-out, in which case there's no point even using the VGA and BNC T in the first place. So, if there's likely to be a need to compare, I might as well just avoid the issue with the initial choice of direction.
| Quote: | | You could always go for a DVI-I to RGBHV BNC female break out cable and run 5 runs of RG6 Quad Shiled or Beldin co-ax. |
I don't think I can do that, either, without going to a separate video card, since the on-board graphics only have DVI-D.
Dan
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26690
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Fri Nov 23, 2012 7:51 am Post subject: |
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| dkap wrote: | | AnalogRocks wrote: | | Cables are subjective. Test them and see. If you see ringing or an over all soft picture get a better cable. |
Unfortunately, I have no way to test the Canare with the HTPC currently. Doing so would require a video card with component TV-out, in which case there's no point even using the VGA and BNC T in the first place. So, if there's likely to be a need to compare, I might as well just avoid the issue with the initial choice of direction.
| Quote: | | You could always go for a DVI-I to RGBHV BNC female break out cable and run 5 runs of RG6 Quad Shiled or Beldin co-ax. |
I don't think I can do that, either, without going to a separate video card, since the on-board graphics only have DVI-D.
Dan |
I meant test the Breakout cable. Are you sure your PC only have DVI-D? I thought you had run a DVI to VGA adaptor with it previously?
What motherboard model number?
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dkap
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| Link Posted: Fri Nov 23, 2012 3:40 pm Post subject: |
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| AnalogRocks wrote: | | I meant test the Breakout cable. |
That's paired with the VGA cable, so I wouldn't be able to tell which is the shortcoming.
| Quote: | | Are you sure your PC only have DVI-D? I thought you had run a DVI to VGA adaptor with it previously? |
Nope, definitely just DVI-D. I first tried a DVI-I to VGA adapter for hooking up the VGA monitor and VGA projector outs, and the adapter didn't fit. 
| Quote: | | What motherboard model number? |
ASRock H77M.
Dan
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dkap
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| Link Posted: Sat Nov 24, 2012 1:05 am Post subject: |
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I decided to go ahead and send the Barco in to Curt for repairs. (Fingers crossed that I can reassemble it!) So, I'll have it ready to go with the VGA cable for initial testing, and if that turns out to be unsatisfactory, I can look into TV-out video cards and adapters again.
Considering the Sony was running at 320x240 over a Composite cable, I can't imagine I'll have big complaints about the Barco at 1280x1024 over a VGA cable. It's all relative, right??
Thanks for all the help thus far!
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sat Nov 24, 2012 3:23 am Post subject: |
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| dkap wrote: | I decided to go ahead and send the Barco in to Curt for repairs. (Fingers crossed that I can reassemble it!) So, I'll have it ready to go with the VGA cable for initial testing, and if that turns out to be unsatisfactory, I can look into TV-out video cards and adapters again.
Considering the Sony was running at 320x240 over a Composite cable, I can't imagine I'll have big complaints about the Barco at 1280x1024 over a VGA cable. It's all relative, right??
Thanks for all the help thus far!
Dan |
Composite NTSC is 720x480i
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dkap
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| Link Posted: Sat Nov 24, 2012 7:27 am Post subject: |
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| AnalogRocks wrote: | | Composite NTSC is 720x480i |
Even though the Sony 1040Q only handles 320x240?
Dan
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AnalogRocks
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TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sat Nov 24, 2012 7:39 pm Post subject: |
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| dkap wrote: | | AnalogRocks wrote: | | Composite NTSC is 720x480i |
Even though the Sony 1040Q only handles 320x240?
Dan |
I imagine 240p (320x240 progressive ) is 15Khz which is close to the 15.75Kz scan rate. Which is what NTSC is at 720x480 interlaced.
So as long as you don't go over the max scan rate of the projector you're OK
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dkap
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| Link Posted: Sat Nov 24, 2012 11:55 pm Post subject: |
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| AnalogRocks wrote: | I imagine 240p (320x240 progressive ) is 15Khz which is close to the 15.75Kz scan rate. Which is what NTSC is at 720x480 interlaced.
So as long as you don't go over the max scan rate of the projector you're OK |
That's a bit above my comprehension level... Does that mean a higher resolution could be supported if the scan rate were low enough?
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sun Nov 25, 2012 4:33 am Post subject: |
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Think of it this way.
Twice the resolution interlaced = half the resolution progressive
so 720x480 interlaced 15.75KHz = 360x240 progressive also 15.75Khz
Likewise if you have the same resolution interlaced vs progressive it's half the scan rate
so 720x480 interlaced is 15.75KHz (480i) and 720x480 progressive is 31.5KHz (480p)
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dkap
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| Link Posted: Sun Dec 09, 2012 6:01 am Post subject: |
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Man, I finally got TV-out configured on an older NVidia card (after installing a Win 8 trial, since Linux just wasn't getting me anywhere), which required a bit of trial and error but finally resulted in 480i options ... only to get no picture to the 1040Q when connected that way. Either the projector just isn't compatible with that sort of connection (I know the composite input works, because that's how I had it hooked up to the DVD player previously), the TV-out doesn't work (it didn't auto-detect the projector being present like it did via the VGA to 5-BNC connection), or something altogether different I'm missing. Talk about anti-climactic.
Dan
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AnalogRocks
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TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sun Dec 09, 2012 6:11 am Post subject: |
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Which Nvidia card?
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dkap
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| Link Posted: Sun Dec 09, 2012 6:16 am Post subject: |
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Geforce 6200 TC. Driver installation in Linux was a complete mess, and although fairly straight forward in Win 8, not entirely clear what took place. It started out fine, detecting the card and everything, only to fail on installation saying no such card was recognized. But after rebooting, it was magically all set up just fine. The TV-out is the only piece that's been a mystery, as I had to much around a bunch with enabling and disabling various monitor connections, rebooting, changing extended/cloned settings, etc., before I could finally select "TV" as an output option.
I thought there was some potential with the VGA output, as it allowed me to set custom resolutions, but none of the ones I tried worked. Maybe it's worth going back to that and trying more combinations... At least it resulted in a signal being sent to the projector, albeit a scrambled one. The TV-out is just a black screen (red and blue tubes lit).
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sun Dec 09, 2012 6:34 am Post subject: |
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Do you have a copy of XP you can try? 6200 cards were meant for Win98/2000/XP
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dkap
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| Link Posted: Sun Dec 09, 2012 6:37 am Post subject: |
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I have three XP installations, two of them retired, but they're tied to unusable hard drives. I do have a Win 2000 license, however. I assumed that would really limit my hardware compatibility options, ironically.
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sun Dec 09, 2012 6:47 am Post subject: |
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No COA to do a re-inststal for XP?
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dkap
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| Link Posted: Sun Dec 09, 2012 6:49 am Post subject: |
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Not that I can find. Besides, one is on a dead SATA drive and the other is on an IDE drive that I can't hook up to anything. I don't see much to work with there. The third is my main work computer, so I don't want to mess with that.
Dan
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AnalogRocks
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Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Sun Dec 09, 2012 6:53 am Post subject: |
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What PC are you playing with now?
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