External Monitor Cosmec Conquest

Afternoon all hopefully some one will point me in the right direction for this. I have an older holzher cosmec conquest cnc router. It has an osai 10/110 controller. I have just ordered and received new soft keys as some of my buttons are not easy to use( have to push them in the right spot multiple times before they work. Wel when i have this apart to install the soft keys i would like to hook up to an external monitor as the current screen is dirty between the layers and is hard to see being it is mounted in the cabinet at an angle and reflection from shop lights.

I saw 2 of these machines up at a machinery max auction a couple months back and they both had external monitors hooked up.

It seem i looked up the controller and say a picture of the back it looks like a couple standard 15 pin vga plugs into the back. I am not 100% sure this will work and do not want to wreck or fry anything. I talk to one tech guy at osai and he said not it cant be done. My shop forman talked to another tech at osai and he seemed like he could figure how how to do it but was not open to sharing more info on how to get it done.

I hope some one has some thoughts Please let me know

Thanks all