Re: HP-71B Card Reader Problem Message #2 Posted by Geoff Quickfall on 26 Aug 2008, 11:32 a.m., in response to message #1 by Jeff Davis
The card reader seems to be problematic. Do you have a cleaner card. If not cut a strip identical in width to a magnetic card out of heavy construction paper or fold some standard paper the correct width.
Apply some alchol to it and run it through. If this does not corret the problem, remove the reader and clean the connections on the reader and calculator (make sure you are grounded when doing the connector cleaning).
After that there is not much you can do. The screws do not give you access to the card reader head or any other user servicable parts.
I have a reader that reads 100% but requires MANY pulls to record, up to 20 passes for one card! Also make sure the batteries are new!
Cheers, Geoff
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