What do you do with the values read from CAL/EXEC function. is there a way to enter/change them?
I am asking as I have a 2465 as well that just had 04 10 which is describes by Tektronix as just out of cal (guessing old data or checksum fails. ER1400 can hold data for 10+ years) but TBH the cost of calibration if you dont have the very specialised TMG is not worth it for a scope this age (my opinion as you can by newer versions for 3-500GBP) or go crazy old skool and aim for 4xx series IF BW is the issue.
I am for fun experimenting with reading the data out of the ER1400 (potentially replacing is if it is bad - I got like 10 spare ones). I am not too fuzzed about accuracy as I have digital never scope as well if needed).
Just curious to understand the logic behind what is stored in ER1400, checksums, etc and if it can be trigged into thinking it is calibrated and don't fail on selfcheck.
Cheers.
Mr Lurpak's Electronics Rescue