The Museum of HP Calculators

HP Forum Archive 20

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HP-55 odd behavior revisted
Message #1 Posted by Martin Pinckney on 13 June 2011, 10:09 p.m.

Thanks to everyone who contributed responses to my original post. The consensus seemed to be a bad ROM. Special thanks to Michael de Estrada, who furnished a "donor" HP-55 at modest cost. Swapped out the logic board, now all is well!

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