HP Forum Archive 14

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HP 41C Message #1 Posted by guenter Sass on 17 Jan 2004, 4:06 a.m. The dislay of my HP41-C calculator schows in numeric mode just like that: 000000@@@@@@@, in alpha-mode just like @@@@@@000000. After two days a set os new batteries is empty, instead of the calculator is off. can anybosy help?

Re: HP 41C Message #2 Posted by Jon on 17 Jan 2004, 4:24 a.m., in response to message #1 by guenter Sass I have had a similar problem with two 41C "fullnut". It was the connection of the display with the circuit board. A faulty soldered connector caused the problem. I hope it can help Best Regards Jon

Re: HP 41C Message #3 Posted by Karl Schneider on 17 Jan 2004, 5:43 p.m., in response to message #2 by Jon Guenter -- Jon's diagnosis seems reasonable. I have a fullnut 41CX and a recently-acquired fullnut 41C. The CX had similar symptoms, and was fixed by repairing faulty solder connections and cleaning off some contamination. My 41C has similar symptoms, and I expect that I will order the same service for it.

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