Re: HP-67 stuck card reader motor Message #2 Posted by Tony Duell on 27 Feb 2005, 8:12 a.m., in response to message #1 by Allan
Either you've got a short somewhere on the card reader PCB, or your sense amplifier chip (the one on the card reader PCB) has failed. I think you can take that chip from a 67, 97 or 82104 (HP41 card reader). The one in the HP65 is slightly different, but should work, I think.
|