hello,
i have a cosmetically perfect HP 41C tall key - fullnut from the early '80 or late '70 (not in mind the SN today),
but it is very hard to power on it, it use to works sometimes after inserting betteries, when working all functions are correct thus the card reader does not seems to be recognized (as far as i remember can't see it in cat 1,2,3), but when i power off it is very hard to power on again unless i wait a long time (hours,days... since i did not use it often)
(not a battery problem or card reader conflict,tested with and without on others HP41C/CX)
HP41C tall key does not work better without card reader,
as it is in perfect condition with no corrosion inside or any crack there should be a solution,
does any one know what components must be replaced or the reason of the problem?
note: when opened all contacts are perfect plastic not broken not a simple connection problem,condensators seems okay but not tested...
regards,
damien