Posts: 441
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Joined: Apr 2008
As everything since the Voyager line has been simply exchanged for a new unit when returned for service. If the unit was more than a year old, that exchange was done at about distributor cost for a new unit so HP still made money on the "repair". They did this for five years after the date of manufacture of the unit in question, they have since shortened that to three years.
FWIW, The last HP calculator that was actually "repaired" was the 41 series. Beginning in the early nineties, older fullnuts with battery leaks, display problems or other serious issues just got a halfnut top slapped on the old bottom. When the halfnut service parts ran out, all HP factory calculator service ended in about 1996.