Post by Hic quondam locutus sumPost by b***@gmail.comI have an HP-35S, and it is great. The only problem, which I didn't figure out until it was too late to return the machine, is that it uses up a set of batteries in about three days. Apparently, something is draining the batteries even when the machine is turned off.
Any thoughts or ideas? I really don't want to just buy another one.
--RJB
If you're referring to the Kinpo manufactured HP-35S which was introduced in
2007, then I have no idea without a schematic. I think you'd get more answers if
you posted your question to the HP Museum forums : http://www.hpmuseum.org/
I found the following :
https://www.embedded.com/design/mcus-processors-and-socs/4007500/1/Tear-Down-Scientific-calculator-boils-design-down-to-two-ICs
. Maybe it would be of some help to you. You probably have a bad voltage
regulator or some supporting circuitry like a diode or capacitor that is
malfunctioning, but, I'm not all familiar with the HP-35S's internals, I
wouldn't know for sure.
Hic quondam locutus sum
--------------------------------------------------------------------------------
Send e-mails to "NOhp48 Sat Palephnaught Adot Morg"
( Remove the capitalized letters spelling "NOSPAM" )