Sorry for English, but its quite hard to find others in Europe talking about the big boys
I have a Luma LF 83 S 79 with a Schneider chassis "TV-4.2-85236/E".
Can't really find any information regarding this tv online but it has a Videocolor tube "A80AEJ13X04".
I would love to get into the service menu on this but I don't have the original remote and everything I have tried seems hopeless.
Pretty good picture if I may say so https://imgur.com/gallery/luma-lf-83-s-79-Gn4wjja
