We are looking at buying a Mazak AJV-20/405 I believe a 1988 year model. I went and looked at it and the owner of it knows nothing about it. It was left in the building he had purchased. It has been powered down for over a year now and it seems to have lost all of its positional data. Does anyone know how one of go about teaching the positions? This machine is older then anything I have ever ran or worked on before so its a little out of my wheelhouse. Any information or manuals of any kind would be appreciated.