Pin 2 on the monitor output jack gives a B&W composite. Wire it to an RCA cable where Pin 2 goes to tip and pin 13 goes to the ring (GND).
Also, Pin 1 is audio out, wire it the same way.At least you can test video and/or audio output and function on it, so the next guy isn't a sucker.
I'm guessing from the solder in the background that this is in your ability!
Thanks for that! I had looked and looked couldn't find a way to test video. It's already gone though, so hopefully the buyer sees this!