I wouldn't be surprised to find that some manuals
were
only ever available on fiche. Surely most diags were only
available in source form on fiche?
I think I found at least one case where there was more information in the
fiche manaul than the paper one. It was something like one of the VT5x
terminal technical manuials, the fiche version included a commented
source listing of the state machine firmware, the paper version didn't.
-tony