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HP-80 with bugs ... ?
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02-13-2024, 07:56 AM
(This post was last modified: 02-13-2024 07:57 AM by teenix.)
Post: #4
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RE: HP-80 with bugs ... ?
Sorry, I forgot to add the image.
Attached. I can't find download for the circuit that Tony Duell did for the HP-80 on hpcc.org, the link appears to be broken for some time. I don't have a circuit board overlay as I don't have a HP-80 to create one. You could probably try briefly either shorting the 2.2uF capacitor or use a test lead from the base of the left transistor in the circuit diagram to the test point ground on the circuit board to initiate a reset. cheers Tony |
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| Messages In This Thread |
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HP-80 with bugs ... ? - ThomasF - 02-12-2024, 06:30 PM
RE: HP-80 with bugs ... ? - teenix - 02-12-2024, 10:21 PM
RE: HP-80 with bugs ... ? - ThomasF - 02-13-2024, 06:19 AM
RE: HP-80 with bugs ... ? - teenix - 02-13-2024 07:56 AM
RE: HP-80 with bugs ... ? - ThomasF - 02-13-2024, 08:41 AM
RE: HP-80 with bugs ... ? - ThomasF - 02-13-2024, 02:35 PM
RE: HP-80 with bugs ... ? - teenix - 02-13-2024, 09:53 PM
RE: HP-80 with bugs ... ? - AndiGer - 02-13-2024, 09:30 AM
RE: HP-80 with bugs ... ? - ThomasF - 02-13-2024, 10:21 AM
RE: HP-80 with bugs ... ? - teenix - 02-13-2024, 09:47 AM
RE: HP-80 with bugs ... ? - Thomas Klemm - 02-13-2024, 10:54 PM
RE: HP-80 with bugs ... ? - ThomasF - 02-14-2024, 06:25 AM
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