Denford Software & Machines

This is my first post here. I have just bought my first CNC machine, it is a 1990 Triac. The machine has seen little usage and seems to be running well. I am thinking of converting it to Mach3 eventually, but i have a lot to learn about mach and break out boards before i dive into this. I would really like to learn to use the machine as it is, but the machine was bought without the main monitor. The previous owner had removed it because it was broken. The small monitor in the machine cabinet is working, but it has some overlap issues which makes text really hard to read. Is there an easy solution to this, like moving jumpers etc. or is the monitor or display card toast?

Have you tried adjusting the pots on KME MB12 board?

I think if you power the maxhine up & then press the X button it jumps to a setup screen full of X's which may make it easier to adjust.

Thanks for the idea, i spent quite a while adjusting the potentiometers and eventually was able to get the main screen looking ok. However, when i use different functions, such as loading a program, the overlap is still an issue.
I tried with the screen full of Xes, but i was never able to get a good screen image even though i systematically adjusted the three potentiometers.