firewire to camera to broadcast monitor at DVinfo.net

Robert Bobson · November 30th, 2006, 03:31 PM

do all camcorders allow this "pass through" function? I have an old sony trv-310 with both s-video and firewire connections.

I hook the camera up to the computer via firewire and I can see the video from the editing program displayed on the camera lcd when I first turn everything on.

but when I hook up the s-video cable from the camera to the external monitor, the camera monitor goes solid blue and the video from the computer doesn't pass thru.

and after that, I only see blue on the cam monitor.

but if I play a video on the camera, I can see it on the external monitor. (?)

I'm thinking the camera thinks the s-video is an input signal too and gives it priority over the firewire?

any thoughts?

Boyd Ostroff · November 30th, 2006, 03:34 PM

I don't know about that model, but some of the other Sony cameras have a menu item named something like AV/DV IN. If you set it to allow video input then it would probably behave as you describe. Check you manual and menu options.

Robert Bobson · November 30th, 2006, 09:39 PM

Thanks for the reply. I checked my camera's manual and it doesn't mention any special a/v mode.

I even tried putting a tape in the camera on "record pause" mode - but still no "pass thru".

This camera is about 6 years old, so maybe it wasn't designed to work in this way. (?)

Duane Burleson · December 1st, 2006, 02:35 AM

DV IN should appear on the lcd screen when you plug in the firewire cable and have your NLE software running.

There is the possibility your firewire card does not support it for some reason. My new laptop's firewire port will not let pass though happen on my TRV900, it goes to blue screen on the camera LCD and, if I remember correctly, black on the broadcast monitor. I bought a expresscard firewire card (the new bus that is replaceing the pccard slot) and it works as it should.

I was not a happy camper with this situation though, more stuff to buy, carry, stick out of my laptop, etc.

Duane

Robert Bobson · December 1st, 2006, 06:55 AM

It's a new computer.

Since a camera can be used to convert from analog to digital, maybe the camera sees the analog connection (s-video) as the "input" and the firewire is the "output"?

Boyd Ostroff · December 1st, 2006, 07:27 AM

Well that was my point, on my Sony cameras the s-video port can be either and input or an output, depending on the menu setting. Can you try using the camera on a different computer to see what happens?

Jeff Chandler · December 1st, 2006, 02:42 PM

Not all cams allow this.

Robert Bobson · December 2nd, 2006, 05:52 AM

No menu setting that I can find.

the s-video connection out to the monitor works on it's own, and the firewire in connection from the computer works alone, too.

but when they're both attached, nothing. so I'm thinking there's no pass through function.

I need to get an inexpensive miniDV cam to use as a deck anyway, so I might as well get one with s-vid pass thru, too.

Robert Bobson · December 2nd, 2006, 06:03 PM

It (suddenly) occured to me to hook up my panasonic to see if it would work as a pass-though device - and it works fine.

so I guess it's just the sony that doesn't.

November 30th, 2006, 03:31 PM	#1
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	firewire to camera to broadcast monitor do all camcorders allow this "pass through" function? I have an old sony trv-310 with both s-video and firewire connections. I hook the camera up to the computer via firewire and I can see the video from the editing program displayed on the camera lcd when I first turn everything on. but when I hook up the s-video cable from the camera to the external monitor, the camera monitor goes solid blue and the video from the computer doesn't pass thru. and after that, I only see blue on the cam monitor. but if I play a video on the camera, I can see it on the external monitor. (?) I'm thinking the camera thinks the s-video is an input signal too and gives it priority over the firewire? any thoughts?

December 1st, 2006, 02:42 PM	#7
Jeff Chandler Regular Crew Join Date: Aug 2002 Location: Mesa, Az. Posts: 167	Not all cams allow this. __________________ Jeff Chandler

November 30th, 2006, 03:34 PM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	I don't know about that model, but some of the other Sony cameras have a menu item named something like AV/DV IN. If you set it to allow video input then it would probably behave as you describe. Check you manual and menu options.

November 30th, 2006, 09:39 PM	#3
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	Thanks for the reply. I checked my camera's manual and it doesn't mention any special a/v mode. I even tried putting a tape in the camera on "record pause" mode - but still no "pass thru". This camera is about 6 years old, so maybe it wasn't designed to work in this way. (?)

December 1st, 2006, 02:35 AM	#4
Duane Burleson Regular Crew Join Date: May 2006 Location: Sterling Heights, Michigan Posts: 105	DV IN should appear on the lcd screen when you plug in the firewire cable and have your NLE software running. There is the possibility your firewire card does not support it for some reason. My new laptop's firewire port will not let pass though happen on my TRV900, it goes to blue screen on the camera LCD and, if I remember correctly, black on the broadcast monitor. I bought a expresscard firewire card (the new bus that is replaceing the pccard slot) and it works as it should. I was not a happy camper with this situation though, more stuff to buy, carry, stick out of my laptop, etc. Duane

December 1st, 2006, 06:55 AM	#5
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	It's a new computer. Since a camera can be used to convert from analog to digital, maybe the camera sees the analog connection (s-video) as the "input" and the firewire is the "output"?

December 1st, 2006, 07:27 AM	#6
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	Well that was my point, on my Sony cameras the s-video port can be either and input or an output, depending on the menu setting. Can you try using the camera on a different computer to see what happens?

December 2nd, 2006, 05:52 AM	#8
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	No menu setting that I can find. the s-video connection out to the monitor works on it's own, and the firewire in connection from the computer works alone, too. but when they're both attached, nothing. so I'm thinking there's no pass through function. I need to get an inexpensive miniDV cam to use as a deck anyway, so I might as well get one with s-vid pass thru, too.

December 2nd, 2006, 06:03 PM	#9
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	It (suddenly) occured to me to hook up my panasonic to see if it would work as a pass-though device - and it works fine. so I guess it's just the sony that doesn't.