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+--- Thread: An HP-97 sacrificed to the altar of the knowledge. (/thread-211876.html)
An HP-97 sacrificed to the altar of the knowledge. - Ignazio Cara (Italy) - 02-17-2012
I hope this won't be a sacrilege for most of you, but it's my opinion that this could be a reliable method for bad-component finder, for HP-97 (all IC), HP-67 (ACT, some ROM and CRC controller), Woodstock component (ACT) and HP-41 (82104A Card reader).
Do you agree with me?
All the comments will be welcome.
Logic PCA (left)
Logic PCA (right)
Printer PCA
Keyboard PCA
Card reader PCA
Edited: 19 Feb 2012, 7:01 a.m.
Re: An HP-97 sacrificed to the altar of the knowledge. - Paolo Reda - 02-21-2012
Very nice done. Great step to understanding how to repair our loved 97.
Paolo
Re: An HP-97 sacrificed to the altar of the knowledge. - Luiz C. Vieira (Brazil) - 02-21-2012
I have done that with an HP41CV board with faulty RAM IC's. I used to test ROM, RAM chips and other components with it. I decided to keep the main IC in place, but I am willing to place a socket there, too.
Nicely done, indeed.
Cheers.
Luiz (Brazil)
Re: An HP-97 sacrificed to the altar of the knowledge. - aurelio - 02-21-2012
Ignazio, that was not a sacrifice, it was an heroical "geste"!