From VGA to BNC at DVinfo.net

Piet Deyaert · January 30th, 2007, 07:03 PM

I'm planning to buy the Xenarc 7" but I want to connect it through BNC. Is there a way I can connect a single BNC cable coming from my camera to the Xenarc VGA input?

Thanks,

Piet Deyaert · February 1st, 2007, 02:27 PM

Guess nobody knows?

Dan Keaton · February 10th, 2007, 12:10 PM

A simple cable adapter is not sufficient to convert BNC to VGA.

What signal is on the BNC cable. Is it composite, SDI, HD-SDI, etc.?

Depending on the signal, you may be able to find a electronic converted that will drive a VGA monitor. BlackMagic Design may have what you need.

Piet Deyaert · February 15th, 2007, 06:55 PM

I found this website:
http://images.monoprice.com/productm...ages/25091.jpg

would it be sufficient to buy this cable so I can connect an LCD screen like one of Xenarc to my camcorder with s-video out?

Thx,

Dan Keaton · February 15th, 2007, 07:12 PM

Sorry, but no.

The full description is here:

http://www.monoprice.com/products/pr...ormat=2&style=

This adapter takes a VGA adapter card with TV-Out and provides a composite video output jack and/or a S-Video output jack.

The following is from their website:

VIDEO Card to S. Video and TV Adapter Cable

Connector: VGA(HD15) Male to S-Video Female and RCA(Composite) Jack
Cable: UL 2919 Coaxial Low Voltage Cable

(*)It will work with VGA cards that has TV-Out function capability through the VGA connector.
Check your Video Card manual or manufacturer to make sure that your VGA card has TV-Out function capability.

Piet Deyaert · February 16th, 2007, 04:50 AM

So there isn't a way I can use a monitor from Xenarc as a video assist with my FX1?
I'm sry if this sounds like a stupid question!

Dan Keaton · February 16th, 2007, 09:16 AM

What signal are you trying to connect to the monitor?

The Sony FX1 has composite out, S-Video out, and component out.

I may be mistaken, but from the manual, none appear to be using BNC connectors.

What inputs are there available on your Xenarc? Which model Xenarc do you have?

Rumi Geiger · February 17th, 2007, 02:26 PM

check this thread.

http://www.cinevate.com/phpBB2/viewtopic.php?t=246

Piet Deyaert · February 17th, 2007, 07:14 PM

Mmm intresting, specially when I'm going to use the Xenarc (which I didn't buy yet) for focussing and framing.
I found out that the Xenarc 700YV also has RCA so I could make a connection.
Do you think you could compare this with the Varizoom TFT7? Both connect to the camera trough RCA while the Xenarc has a higher resolution then the Varizoom.

Thx again ;)

Keith Gruchala · February 18th, 2007, 12:19 AM

The only way you can use that monitor at full resolution is to take the component RGB out and convert it to VGA through an electronic box. Details of this conversion I have posted before on this site- do a search for Xenarc. This is the only way you can use that monitor for accurate focusing. If you a fine with not so good focusing but at least performance/framing capability then you can just hook the camera up directly to the RCA input on the monitor via your RCA output. But be aware that it is then a composite, standard definition signal and no longer hi-def.

Bill Ravens · February 18th, 2007, 07:52 AM

sorry to disagree, keith, but what you said isn't exactly true. RGB and VGA are both analog signals, so, no converter box is necessary. All you need is a converter cable, VGA on one end and 3 component RCA's on the other. I do it all the time to inject component out on my camera to a 21 inch LCD screen.

Piet Deyaert · February 19th, 2007, 07:11 AM

So actually I can buy this: http://www.virtualinformation.com/eb...es/vga-1lg.jpg

And then connect it to my s-video out, and the VGA from the Xenarc?

Keith Gruchala · February 20th, 2007, 05:09 PM

Certainly you can convert the end of the cable - I was advising on how to get an HD image out of that camera- The S video image is not Hi-def and neither is the RCA out of that camera or any other HDV camera on the market. The only way you get HD resolution out is through the three component analog signals. If you plug those directly into a converter cable to VGA then you can only get an image on a VGA monitor if it supports the specific resolution the camera is giving, if it has built in scaling capability, if it has multiple ground syncing capability, and if it can handle the individual Hrz frequencies on the three signals + ground sync. In my experience there are very few small LCD monitors out there that can do this- the Xenarc being the exception. Many larger monitors however do have such capabilities though most of them now are offering direct component in, so it makes this conversion all unecessary. Anyway I was advising on adapting for the small LCD which this forum started out with. By the way- I have tried plugging the Xenarc 7" directly with the converter cable only and it does not work because the sync is out of range even though the xenarc does have extensive built-in scaling. The converter box I use by audio authority effectively controls the ground sync (though not perfectly because there is a green shift) and puts it in range for the monitor to accept the signal.

Granville Hatcher · February 28th, 2007, 12:13 AM

Hello Keith,
I am trying to connect my xenarc to HVX via component out > Mayflash VGA transcoder > Xenarc. I can get a decent image when I connect the av cables and select av1 on the monitor; However, when I try to run the comp>vga adapter>monitor set up I don't get a picture on av1,av2, or PC (or anywhere). What am I missing? Is there a setup menu issue here to get the component out to work or should it work as soon as the cable is plugged in? Would appreciate some help.

Steven Fokkinga · February 28th, 2007, 03:10 PM

Probably redundant, but did you plug in the power of the mayflash? It might work without power on SD and only with power on HD. Just a thought.

Steven

January 30th, 2007, 07:03 PM	#1
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	From VGA to BNC I'm planning to buy the Xenarc 7" but I want to connect it through BNC. Is there a way I can connect a single BNC cable coming from my camera to the Xenarc VGA input? Thanks,

February 10th, 2007, 12:10 PM	#3
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	A simple cable adapter is not sufficient to convert BNC to VGA. What signal is on the BNC cable. Is it composite, SDI, HD-SDI, etc.? Depending on the signal, you may be able to find a electronic converted that will drive a VGA monitor. BlackMagic Design may have what you need. __________________ Dan Keaton Augusta Georgia

February 15th, 2007, 07:12 PM	#5
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Sorry, but no. The full description is here: http://www.monoprice.com/products/pr...ormat=2&style= This adapter takes a VGA adapter card with TV-Out and provides a composite video output jack and/or a S-Video output jack. The following is from their website: VIDEO Card to S. Video and TV Adapter Cable Connector: VGA(HD15) Male to S-Video Female and RCA(Composite) Jack Cable: UL 2919 Coaxial Low Voltage Cable (*)It will work with VGA cards that has TV-Out function capability through the VGA connector. Check your Video Card manual or manufacturer to make sure that your VGA card has TV-Out function capability. __________________ Dan Keaton Augusta Georgia

February 16th, 2007, 09:16 AM	#7
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	What signal are you trying to connect to the monitor? The Sony FX1 has composite out, S-Video out, and component out. I may be mistaken, but from the manual, none appear to be using BNC connectors. What inputs are there available on your Xenarc? Which model Xenarc do you have? __________________ Dan Keaton Augusta Georgia

February 18th, 2007, 12:19 AM	#10
Keith Gruchala Regular Crew Join Date: May 2006 Location: Los Angeles Posts: 52	xenarc monitor and FX-1 The only way you can use that monitor at full resolution is to take the component RGB out and convert it to VGA through an electronic box. Details of this conversion I have posted before on this site- do a search for Xenarc. This is the only way you can use that monitor for accurate focusing. If you a fine with not so good focusing but at least performance/framing capability then you can just hook the camera up directly to the RCA input on the monitor via your RCA output. But be aware that it is then a composite, standard definition signal and no longer hi-def.

February 1st, 2007, 02:27 PM	#2
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	Guess nobody knows?

February 15th, 2007, 06:55 PM	#4
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	I found this website: http://images.monoprice.com/productm...ages/25091.jpg would it be sufficient to buy this cable so I can connect an LCD screen like one of Xenarc to my camcorder with s-video out? Thx,

February 16th, 2007, 04:50 AM	#6
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	So there isn't a way I can use a monitor from Xenarc as a video assist with my FX1? I'm sry if this sounds like a stupid question!

February 17th, 2007, 02:26 PM	#8
Rumi Geiger Regular Crew Join Date: Aug 2006 Location: Sweden Posts: 42	check this thread. http://www.cinevate.com/phpBB2/viewtopic.php?t=246

February 17th, 2007, 07:14 PM	#9
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	Mmm intresting, specially when I'm going to use the Xenarc (which I didn't buy yet) for focussing and framing. I found out that the Xenarc 700YV also has RCA so I could make a connection. Do you think you could compare this with the Varizoom TFT7? Both connect to the camera trough RCA while the Xenarc has a higher resolution then the Varizoom. Thx again ;)

February 18th, 2007, 07:52 AM	#11
Bill Ravens Join Date: Nov 2001 Location: santa fe, nm Posts: 3,264 Images: 10	sorry to disagree, keith, but what you said isn't exactly true. RGB and VGA are both analog signals, so, no converter box is necessary. All you need is a converter cable, VGA on one end and 3 component RCA's on the other. I do it all the time to inject component out on my camera to a 21 inch LCD screen.

February 19th, 2007, 07:11 AM	#12
Piet Deyaert Regular Crew Join Date: Sep 2006 Location: Kruibeke, Belgium Posts: 52	So actually I can buy this: http://www.virtualinformation.com/eb...es/vga-1lg.jpg And then connect it to my s-video out, and the VGA from the Xenarc?

February 20th, 2007, 05:09 PM	#13
Keith Gruchala Regular Crew Join Date: May 2006 Location: Los Angeles Posts: 52	VGA vs. RCA Certainly you can convert the end of the cable - I was advising on how to get an HD image out of that camera- The S video image is not Hi-def and neither is the RCA out of that camera or any other HDV camera on the market. The only way you get HD resolution out is through the three component analog signals. If you plug those directly into a converter cable to VGA then you can only get an image on a VGA monitor if it supports the specific resolution the camera is giving, if it has built in scaling capability, if it has multiple ground syncing capability, and if it can handle the individual Hrz frequencies on the three signals + ground sync. In my experience there are very few small LCD monitors out there that can do this- the Xenarc being the exception. Many larger monitors however do have such capabilities though most of them now are offering direct component in, so it makes this conversion all unecessary. Anyway I was advising on adapting for the small LCD which this forum started out with. By the way- I have tried plugging the Xenarc 7" directly with the converter cable only and it does not work because the sync is out of range even though the xenarc does have extensive built-in scaling. The converter box I use by audio authority effectively controls the ground sync (though not perfectly because there is a green shift) and puts it in range for the monitor to accept the signal.

February 28th, 2007, 12:13 AM	#14
Granville Hatcher New Boot Join Date: Jan 2007 Location: Sebastopol, Ca. Posts: 5	Hello Keith, I am trying to connect my xenarc to HVX via component out > Mayflash VGA transcoder > Xenarc. I can get a decent image when I connect the av cables and select av1 on the monitor; However, when I try to run the comp>vga adapter>monitor set up I don't get a picture on av1,av2, or PC (or anywhere). What am I missing? Is there a setup menu issue here to get the component out to work or should it work as soon as the cable is plugged in? Would appreciate some help. Last edited by Granville Hatcher; February 28th, 2007 at 12:23 AM. Reason: did not finish

February 28th, 2007, 03:10 PM	#15
Steven Fokkinga Major Player Join Date: May 2004 Location: The Netherlands Posts: 204	Probably redundant, but did you plug in the power of the mayflash? It might work without power on SD and only with power on HD. Just a thought. Steven