I bought a vintage Canon monitor off a friend which I'd like to interface with and use as a cool retro monitor.
The problem is that I can't find anything useful about this monitor after days of searching on Google and my friend can't help me with it.

The monitor is a Canon v9521 which I suspect is a monochrome unit because of the low power that is needed.
It also only has one cable coming out of it, a standard DB-9 male cable, with no evidence of a connector for power (it's probably powered from the DB-9).
This monitor is for a Canon v3101a or v3102 electric typewriter(?).

I need to know the pinout of the DB-9 cable so that I can power up the monitor and hook it up. I also need to know the protocol that this uses so that I can actually program an Arduino to interface with it.