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HP-97 weird behaviour
05-02-2016, 09:43 PM
Post: #6
RE: HP-97 weird behaviour
(05-02-2016 08:31 PM)Massimo Gnerucci Wrote:  Bernhard, you've officialy become The Replacer.

Smile

To replace the complete HP-97 ROM chip set, only one ROM replacement chip would be necessary, which contains the complete 6k firmware. You don't have to bother with asking which ROM is defective, just one chip replaces them all and it could even contain RAM and replaces defective RAM chips. Of course an ACT for HP-97 would do the same and would be the better solution, but this needs a new concept including exact timing for card reader and printer, it is much more difficult than a new RAM/ROM chip.

Bernhard

That's one small step for a man - one giant leap for mankind.
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Messages In This Thread
HP-97 weird behaviour - AndiGer - 05-02-2016, 06:32 PM
RE: HP-97 weird behaviour - AndiGer - 05-02-2016, 07:35 PM
RE: HP-97 weird behaviour - PANAMATIK - 05-02-2016, 07:55 PM
RE: HP-97 weird behaviour - PANAMATIK - 05-02-2016 09:43 PM



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