The Museum of HP Calculators

HP Forum Archive 05

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The Old Smack The HP 41C Trick
Message #1 Posted by Jim L on 9 Feb 2001, 5:26 p.m.

I've often noticed that when I find a new 41C and first install the batteries and turn it on that nothing happens.

If I then smack it firmly but not too aggressively into the palm of my hand, it will very often spring to life. Is this a common experience? Is it understood or is it just strange luck?

      
Re: The Old Smack The HP 41C Trick
Message #2 Posted by Andrés C. Rodríguez (Argentina) on 11 Feb 2001, 9:42 a.m.,
in response to message #1 by Jim L

Pressing and/or gently twisting the case may improve the contact between internal connectors. Do it carefully!

      
Re: The Old Smack The HP 41C Trick
Message #3 Posted by Frank Knight on 11 Feb 2001, 7:36 p.m.,
in response to message #1 by Jim L

Tighten the screws, do not strip.

      
Re: The Old Smack The HP 41C Trick
Message #4 Posted by Steve Kersey on 3 Mar 2001, 6:30 p.m.,
in response to message #1 by Jim L

More 41's die from breakage of the internal screw posts than any other cause. I suggest you find a different technique for starting yout 41.

            
Re: The Old Smack The HP 41C Trick
Message #5 Posted by db on 3 Mar 2001, 7:37 p.m.,
in response to message #4 by Steve Kersey

yes jim, at least give it a chance and type in (alpha)look; if you don't turn on i'm gonna have to smack you (alpha).


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