RCA to VGA? at DVinfo.net

Aviv Hallale · May 5th, 2006, 01:59 PM

Is there some kind of adapter I can attach to a PC monitors VGA port so I can connect my camera to it and use it as a field monitor? I have an old, old Commordore 64 monitor which has that kind of input and the picture comes out clear on it, except the picture is continuously rolling vertically, so it's obviously not useable, or is there anyway to fix it?

Glenn Chan · May 6th, 2006, 04:05 AM

There should be a setting to control vhold.

If not, check for ground loops. To debug ground loops, one solution is to have all wiring off the same power outlet... you might just want to isolate the monitor and video source to debug (like disconnect them, and reconnect them somewhere else).

2- Commodore monitors should have 2 RCA plugs in the back... you can make yourself that cable as follows:

Get a S-video cable. This goes into your camcorder... use the camcorder as a DV bridge if you need to see your NLE.
Get a RCA cable (male-male; almost all are male-male). Cut this in half.

Make a S-video to dual RCA male cable.
Strip open both cables. Shield goes to shield/braid, center wire to center wire. To start, just tape everything onto a business card and keep the wires seperate.
One of the RCAs will carry luma, the other chroma. Via trial and error, you should figure out which is which. So label them accordingly.

Once you got that figured out, either solder your cable or buy a new one. cablewholesale.com I think has em.

Aviv Hallale · May 6th, 2006, 06:24 AM

Hmm, at the back of the monitor there are little holes with "V.H' "V.S" and some others...I assume VH is vertical hold? How exactly do I use these settings...are they screws in those holes or what?

Steve House · May 6th, 2006, 06:59 AM

Quote:

Originally Posted by Aviv Hallale

Hmm, at the back of the monitor there are little holes with "V.H' "V.S" and some others...I assume VH is vertical hold? How exactly do I use these settings...are they screws in those holes or what?

Probably screwheads on the shaft of a pot or coil. If you shine a flashlight in you should be able to see for sure. Use a non-metallic screwdriver (available at Radio Shack).

Aviv Hallale · May 6th, 2006, 08:59 AM

Ahhh, that helped...But the monitor is officially wonky. Luminance and Chromanance jumps, it also seems to lag...If I move the camera, the low-lights seem to take a half second to adjust...Shadows will move with the picture before being adjusted...But I guess 20 years will do that to monitor.

May 5th, 2006, 01:59 PM	#1
Aviv Hallale Major Player Join Date: Mar 2004 Location: Cape Town, South Africa Posts: 276	RCA to VGA? Is there some kind of adapter I can attach to a PC monitors VGA port so I can connect my camera to it and use it as a field monitor? I have an old, old Commordore 64 monitor which has that kind of input and the picture comes out clear on it, except the picture is continuously rolling vertically, so it's obviously not useable, or is there anyway to fix it?

May 6th, 2006, 04:05 AM	#2
Glenn Chan Inner Circle Join Date: Jun 2003 Location: Toronto, Canada Posts: 4,750	There should be a setting to control vhold. If not, check for ground loops. To debug ground loops, one solution is to have all wiring off the same power outlet... you might just want to isolate the monitor and video source to debug (like disconnect them, and reconnect them somewhere else). 2- Commodore monitors should have 2 RCA plugs in the back... you can make yourself that cable as follows: Get a S-video cable. This goes into your camcorder... use the camcorder as a DV bridge if you need to see your NLE. Get a RCA cable (male-male; almost all are male-male). Cut this in half. Make a S-video to dual RCA male cable. Strip open both cables. Shield goes to shield/braid, center wire to center wire. To start, just tape everything onto a business card and keep the wires seperate. One of the RCAs will carry luma, the other chroma. Via trial and error, you should figure out which is which. So label them accordingly. Once you got that figured out, either solder your cable or buy a new one. cablewholesale.com I think has em.

May 6th, 2006, 06:24 AM	#3
Aviv Hallale Major Player Join Date: Mar 2004 Location: Cape Town, South Africa Posts: 276	Hmm, at the back of the monitor there are little holes with "V.H' "V.S" and some others...I assume VH is vertical hold? How exactly do I use these settings...are they screws in those holes or what?

May 6th, 2006, 08:59 AM	#5
Aviv Hallale Major Player Join Date: Mar 2004 Location: Cape Town, South Africa Posts: 276	Ahhh, that helped...But the monitor is officially wonky. Luminance and Chromanance jumps, it also seems to lag...If I move the camera, the low-lights seem to take a half second to adjust...Shadows will move with the picture before being adjusted...But I guess 20 years will do that to monitor.