The color coaxial cables going into the monitor measure 75 ohm inner to outer. I'm going to solder the connector on anyway and go from there.

Soldering the DB15 connector is very difficult. I've already ruined two connectors.

http://i1052.photobucket.com/albums/...psgxh0gggp.jpg

The coaxial cable's stiffness makes things very difficult.

You might need a smaller iron, something to hold the connector still, and something to hold the wires...

The entire cable has to be replaced.
You're trying to solder aluminum wire, which is almost impossible. That's why you're having all that difficulty!
Maybe a forum member has a scrap monitor, that they can unsolder the cable from the board. They must have small crimp terminals that solder into the PC board, as it's impossible to wave solder aluminum. :sigh:

I wish I knew that before I bought this soldering iron. :)

I almost picked up a spare on CL for free, but then decided on fixing this one instead.

I bought one of those breakout connectors to make sure my pinout is correct and that the fault is in the connector (which doesn't seem to be the case, because continuity exists with red in the connector :saywhat:).

From what I've seen, the monitor end is even worse.

http://i44.photobucket.com/albums/f1...ps1653bd05.jpg

Hmm...

...

Well, I got the connector today and hooked it up.

The monitor works again! My connector looks awful, and I wasn't able to connect pin 5 and connector ground. The monitor seems to be working ok without them.

Connecting everything results in a much sharper picture.

Thank you all very much. This monitor still has a great picture.