Hi Tercio!
I do not believe the 1740/50/60 non letter series had calibration software, this was done manually through on board adjustments.
The 1740A/50A/60A did have calibration software and it used completely different hardware from the non letters.
If you are indeed in need of the calibration software for the 17xxA's, we sadly no longer have it as we sold our video division to Telestream.
You can reach them at the following email: videosupport@telestream.net