HP35 problem with a calculator, maybe due to a faulty charger
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03-21-2021, 10:19 AM
Post: #12
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RE: HP35 problem with a calculator, maybe due to a faulty charger
(03-21-2021 08:20 AM)teenix Wrote: It does look cleanThank you Tony, CPU boards swapping was the first thing that came to my mind, but I also thought about the risk, however minimal, of being then with two 35 opened and, even worse, both not working... Thanks for the advice, I measured the voltage and read, with my 8.5 V multimeter, where it should be from scheme 8.2, but I do not know the accuracy of my instrument and the tolerance allowed. I measured on test points what I could measure with the multimeter i.e. Vss = 6.49 (expected value 6 V) and Vgg = -12.94 (expected value -12 V), what do you think of these results? |
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