The Museum of HP Calculators

HP Forum Archive 14

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HP 15C complex mode
Message #1 Posted by John Gerlach on 24 May 2004, 11:04 a.m.

My 15c is in complex mode and I don't recall how to get it back to regular mode. Can someone help?

      
Execute CF 8 (Clear Flag 8) [No text]
Message #2 Posted by Valentin Albillo on 24 May 2004, 11:07 a.m.,
in response to message #1 by John Gerlach

Best regards from V.

            
Re: Execute CF 8 (Clear Flag 8) [No text]
Message #3 Posted by John on 24 May 2004, 11:20 a.m.,
in response to message #2 by Valentin Albillo

It did not remove it. Not sure if I understand the instructions. Thanks for your help.

                  
Re: Execute CF 8 (Clear Flag 8) [No text]
Message #4 Posted by Valentin Albillo on 24 May 2004, 12:00 p.m.,
in response to message #3 by John

It can't fail ! :-O

With the calculator turned on, you must press exactly these keys: 

     [g]   (the blue key)

     [5]   (the 5 key, which has CF printed in blue)

     [8]   (the 8 key)

The complex mode annunciator "C" in the display should disappear and your HP-15C will be out of complex mode. Else there's some keyboard or hardware problem.

Best regards from V.

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