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HP41C s/n 1932A00199
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10-20-2020, 11:51 PM
(This post was last modified: 10-20-2020 11:52 PM by Diego Diaz.)
Post: #2
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RE: HP41C s/n 1932A00199
Hi,
This is caused by the different display boards. Early units used a timer for the auto-OFF feature with a different capacitor (C2) value than those in the latter units. You have to replace that capacitor in the CPU board, from 470pF to 10nF and you'll get the standard auto-OFF delay. Hope this helps. Best from Canary Islands. Diego. "Do not suppose, check it twice." |
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HP41C s/n 1932A00199 - Jose Gonzalez Divasson - 10-20-2020, 11:03 PM
RE: HP41C s/n 1932A00199 - Diego Diaz - 10-20-2020 11:51 PM
RE: HP41C s/n 1932A00199 - Jose Gonzalez Divasson - 10-21-2020, 06:37 AM
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