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HP48G Series Keyboard Hardware
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HP48G Series Keyboard Hardware
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HP48G Series Keyboard Hardware
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07-03-2023, 04:16 PM
Post: #1
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HP48G Series Keyboard Hardware
Regarding the HP48 keyboard:
We know that the connections to the main PCB are via a plastic sheet with conductive paths. These conductive paths have different resistances as the traverse up to the connector pads (and zebra strip) that connects these lines to the address lines of the microprocessor. Is the resistance of these conductive paths of any consequence? If one was to construct a replacement keyboard, is it necessary to emulate this resistance? Thank you in advance for your input/experience. TomC |
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HP48G Series Keyboard Hardware - TomC - 07-03-2023 04:16 PM
RE: HP48G Series Keyboard Hardware - Diego Diaz - 07-03-2023, 10:42 PM
RE: HP48G Series Keyboard Hardware - TomC - 07-04-2023, 10:27 AM
RE: HP48G Series Keyboard Hardware - franz.b - 07-05-2023, 11:27 AM
RE: HP48G Series Keyboard Hardware - Steve Simpkin - 07-05-2023, 12:25 PM
RE: HP48G Series Keyboard Hardware - TomC - 07-05-2023, 04:35 PM
RE: HP48G Series Keyboard Hardware - Steve Simpkin - 07-05-2023, 05:10 PM
RE: HP48G Series Keyboard Hardware - ijabbott - 07-05-2023, 08:20 PM
RE: HP48G Series Keyboard Hardware - BruceH - 07-07-2023, 08:27 PM
RE: HP48G Series Keyboard Hardware - TomC - 07-08-2023, 11:57 AM
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