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HP-67 Reads cards but does not write
02-14-2024, 09:42 PM (This post was last modified: 02-14-2024 09:49 PM by teenix.)
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teenix Offline
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RE: HP-67 Reads cards but does not write
Maybe try changing the 47uF tantalum power supply cap anyway. It has a known issue with card reads.

HP stated that some sense amps run at marginal specifications and can cause read errors, (probably more so now that they have aged) so anything that improves the conditions that the sense chip operates in will help. The caps on the sense board may also need attention.

cheers

Tony
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RE: HP-67 Reads cards but does not write - teenix - 02-14-2024 09:42 PM



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