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HP-25 - what could be wrong, simple question
06-04-2019, 10:56 PM
Post: #3
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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RE: HP-25 - what could be wrong, simple question - albertofenini - 06-04-2019 10:56 PM



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