Monitor Questions pt. I

As I'm taking apart the bar top I'm trying hard to study the way it was put together.
What goes where in terms of wiring etc. As noted this will be the 1st time I've ever done anything like this from scratch.

I noticed on the monitor chassis two switches.
They read :

POSI-H-NEGA & POSI-V-NEGA

I can figure out that one is for HORIZONTAL orientation, the other VERTICAL.
For my needs the monitor would need a vertical orientation. So I would assume the "V" switch would be "POSI" and the "H" switch "NEGA."

I just have to figure out which is the top and which is the bottom, but I think the top has the suction cup from the fly back.