HP35 problem with a calculator, maybe due to a faulty charger
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03-20-2021, 02:32 PM
(This post was last modified: 03-20-2021 02:33 PM by aurelio.)
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RE: HP35 problem with a calculator, maybe due to a faulty charger
(03-20-2021 02:11 PM)Maximilian Hohmann Wrote: Hello1 Thank-you Max, actually I fed it with different battery pack aleady tested (I mean they work with other calculators) and the result is the same. I read on the forum that "this machine will work just fine without a battery pack installed. The power supply for the classic series machines delivers a filtered and regulated voltage to the electronics and a separate voltage to charge the battery pack". well, feeding the calculator without the battery pack inside using different already tested wall charger the behaviour I get is the same (erratic). I'm scared that the wrong initial voltage (17V circa) in place of the 4,5 could have damaged the circuit, far away still to understand what, specifically |
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