HP Forum Archive 20

[ Return to Index | Top of Index ]

An HP-97 sacrificed to the altar of the knowledge. Message #1 Posted by Ignazio Cara (Italy) on 17 Feb 2012, 2:08 p.m. 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. Message #2 Posted by Paolo Reda on 21 Feb 2012, 3:58 a.m., in response to message #1 by Ignazio Cara (Italy) 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. Message #3 Posted by Luiz C. Vieira (Brazil) on 21 Feb 2012, 4:32 a.m., in response to message #1 by Ignazio Cara (Italy) 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. Message #4 Posted by aurelio on 21 Feb 2012, 6:21 a.m., in response to message #3 by Luiz C. Vieira (Brazil) Ignazio, that was not a sacrifice, it was an heroical "geste"!

[ Return to Index | Top of Index ]

Go back to the main exhibit hall