How do solder these ground pins? (Help a newbie please!)

[c0dehunter]

Hello All!
OK, I am about to make a custom cable in order to connect a Sony PVM-2030 (with 25pin connector) to a modern PC's VGA (15pin), and use MAME and other emulators (currently I am connecting my Commodore 1084S-D1 and it looks great!)

The VGA to 25pin schematic table is as follows:

http://www.flickr.com/photos/48901682@N ... /lightbox/

The table comes from this forum post, however the actual diagram is INCORRECT:
http://nfggames.com/forum2/index.php?topic=4028.0

I was determined to make a CORRECTED diagram, so I made this diagram instead:
http://www.flickr.com/photos/48901682@N ... /lightbox/

The question that I have is this:
In the original table, it states that pins 15 to 24 are GROUND (corresponding to pins 6,7,8,10 on Sony's 25pin connector in the back). Do I need 10 (ten!) cables to ground these pins?

I can solder pins 6, 5, 4, 3, and 11 (R, G, B, H-Sync, V-Sync) but I am not sure about Ground pins.

Would you kindly let me know what pins (how many cables!) I need to ground?

also why the person who posted this table (RGB32E), states that: "The only pin you could optionally ground is pin 2 - audio select."

Any help regarding grounding those pins are much appreciated!

[RGB32E]

You're not the first person to be overwhelmed by the many ground pins on the DB25 connector! Pins 15-24 are all connected to the same ground connection. As with most all electrical circuits, you need to make at least once connection to ground on the DB25 connector from your source.

The PVM-2030/2530 don't actually accept separate sync signals when analog signals are used. You'll need a device (extron RGB interface) or circuit (ask google) to convert the separate sync signals into composite sync (RGBHV to RGBS).

Do a little more research before spamming multiple forums with the same question! It always helps to find the pinout specification for the device you're trying to connect to:


Try to answer your own questions buddy!

[c0dehunter]

Thanks! Would you be able to make this cable for me? (of course I will pay you)

Thanks!