HP 34C turning on but Error 0, zeros, frozen
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07-12-2018, 06:48 AM
(This post was last modified: 07-12-2018 06:50 AM by goncal.)
Post: #5
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RE: HP 34C turning on but Error 0, zeros, frozen
(07-11-2018 04:27 PM)jebem Wrote: From the published pictures, I see signs of battery leakage on the battery contacts, including the two PCB pins where the external charger is connected. Thank you very much for the insight. I cleaned the contacts and they were fine. I should have reported that with the custom power supply connected through crocodile clips and a full set of zeros on the screen I tried gradually lowering voltage down from 2.4V. Around 2.2V the 'low battery' dot on the left of the screen would gradually light up, then as the voltage decreased it would go out and the whole display (still filled with zeros) would dim. Further on that the zeros would turn into little flashing lights. I tried this a few times with the same results unfortunately. I fear I might have damaged the unit a few years ago when I tried to power it on with a faulty battery pack and the AC adaptor connected. Nothing happened and I just put it back thinking one day I would look for a new set of batteries. |
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Messages In This Thread |
HP 34C turning on but Error 0, zeros, frozen - goncal - 07-11-2018, 09:20 AM
RE: HP 34C turning on but Error 0, zeros, frozen - PANAMATIK - 07-11-2018, 03:29 PM
RE: HP 34C turning on but Error 0, zeros, frozen - goncal - 07-11-2018, 03:30 PM
RE: HP 34C turning on but Error 0, zeros, frozen - jebem - 07-11-2018, 04:27 PM
RE: HP 34C turning on but Error 0, zeros, frozen - goncal - 07-12-2018 06:48 AM
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