HP-25 - what could be wrong, simple question
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06-04-2019, 10:56 PM
Post: #3
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RE: HP-25 - what could be wrong, simple question
HI Bernard
First of all thanks for your reply So this behavior doesn’t necessarily mean that the Ram is defective ? It could also be the ACT chip ? Since we were able to do math operations we assumed that the ACT was working How can we check if the pin 11 is connected with the RAM ? Could it be a bad trace or you mean is disconnected inside the ACT CHIP ? This kind of unit could it be restored with a lot of yours ? Thanks again!! Edoardo & Alberto |
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Messages In This Thread |
HP-25 - what could be wrong, simple question - albertofenini - 06-04-2019, 08:47 PM
RE: HP-25 - what could be wrong, simple question - PANAMATIK - 06-04-2019, 10:27 PM
RE: HP-25 - what could be wrong, simple question - albertofenini - 06-04-2019 10:56 PM
RE: HP-25 - what could be wrong, simple question - PANAMATIK - 06-05-2019, 12:48 PM
RE: HP-25 - what could be wrong, simple question - albertofenini - 06-07-2019, 10:56 AM
RE: HP-25 - what could be wrong, simple question - albertofenini - 06-07-2019, 09:45 PM
RE: HP-25 - what could be wrong, simple question - teenix - 09-23-2019, 01:08 AM
RE: HP-25 - what could be wrong, simple question - albertofenini - 09-22-2019, 05:39 PM
RE: HP-25 - what could be wrong, simple question - albertofenini - 10-13-2019, 07:05 PM
RE: HP-25 - what could be wrong, simple question - AndiGer - 10-13-2019, 07:25 PM
RE: HP-25 - what could be wrong, simple question - albertofenini - 10-13-2019, 07:51 PM
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