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strange HP25 behaviour
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05-20-2014, 06:33 AM
Post: #2
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RE: strange HP25 behaviour
Hi Ignacio,
my name is... Ignazio, and I've one HP-25C with the same strange behaviour. The calculator is arrived yesterday with a bad ACT that I've replaced with a good unit, the CMOS RAM work well, program and memory registers ok but when I push the ENTER key I see only '0,0000000000'. This evening I'll swap the ROM 1818-0154 with a proved good unit, the only thing that I can try to change. Let me know if you discover anything about your unit. Ignazio ______________________________________ RPN...What else! |
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| Messages In This Thread |
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strange HP25 behaviour - isanchez - 05-19-2014, 11:07 AM
RE: strange HP25 behaviour - ignazio - 05-20-2014 06:33 AM
RE: strange HP25 behaviour - isanchez - 05-20-2014, 07:04 AM
RE: strange HP25 behaviour - isanchez - 05-20-2014, 08:49 AM
RE: strange HP25 behaviour - walter b - 05-20-2014, 10:48 AM
RE: strange HP25 behaviour - ignazio - 05-20-2014, 10:12 AM
RE: strange HP25 behaviour - isanchez - 05-20-2014, 10:51 AM
RE: strange HP25 behaviour - ignazio - 05-20-2014, 01:40 PM
RE: strange HP25 behaviour - ignazio - 05-20-2014, 06:39 PM
RE: strange HP25 behaviour - isanchez - 05-21-2014, 08:38 AM
RE: strange HP25 behaviour - PANAMATIK - 02-11-2015, 07:32 PM
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