That does look like a V and H to me as well.
If you use a meter you can find the ground pins very easily.
And I would assume it may be setup quite similar to other monitors in order to make it a bit universal. (without further information to go on)
So I would guess that Red, Green, Blue and a Ground would start from the pin to the right hand side in your first pic. Then the composite sync line would go to one of the remaining pins.
The RED, GREEN and BLUE pins should lead over towards those three transistors to the left of the connector if looking at your first pic.
There should be two ground pins to choose from. (you should only need to use one)
And then it looks like there's a choice of two pins to connect the composite sync to.
And two pins would be for separate H and V sync.
One pin may just be a KEY pin and actually doesn't go to anything.
This all just kinda guessing without being able to put my hands on it personally to look at the trace side of the pcb.