Re: HP-41 card reader repair Message #3 Posted by Daniel Diggelmann on 22 Aug 2006, 6:57 a.m., in response to message #2 by Klaus
Hi Klaus,
Many thanks for the hint. I'll check the signals with the scope. I also have the schematics. I have tested the unit further in the last 12h and it didn't fail again. Actually the failures slowly got less and less. It seems that the capacitors haven't been charged for a long time and it looks they have comme back to life with usage. I'll still check the signals and maybe I can preventively change some capacitors.
Regards, Daniel
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