HP41CX automatic shutdown



#2

I have a problem with the automatic shutdown. The machine automatically turns off after 1 minute of inactivity. The manual says it should be 10 minutes.

If I execute ON function the machine does not turn off any more until the next press of the "on" button (ie, switching it off). This is normal.

Any ideas about the cause and the solution? Is it possible to give the machine an instruction about this inactivity switch off time, or the default value of 10 minutes cannot be changed.

Thanks,


#3

Just a hint: the timeout is controlled from the display drivers (chips), since most of the rest of the calculator is "sleeping" between operations, while the display circuitry keeps showing the last value in the LCD.


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP Prime: the drama of the Apps button, shutdown, formatting, nothing solves Davi Ribeiro de Oliveira 0 251 11-17-2013, 07:23 AM
Last Post: Davi Ribeiro de Oliveira
  HP Prime: the drama of the Apps button, shutdown, formatting, nothing solves Davi Ribeiro de Oliveira 1 307 11-16-2013, 11:26 PM
Last Post: Michael de Estrada
  [Prime] Shutdown timer bug? Cristian Arezzini 2 362 11-16-2013, 10:34 AM
Last Post: Cristian Arezzini
  Shutdown with the Apps key and more than 10 variables in a program. Davi Ribeiro de Oliveira 10 960 11-05-2013, 01:26 PM
Last Post: Han
  HP41CX: Strange serial #... Stephan Matthys 1 281 09-13-2013, 01:38 PM
Last Post: Stephan Matthys
  [HP-Prime CAS] Automatic Simplification (Direct Answer) CompSystems 6 512 07-26-2013, 07:20 PM
Last Post: Gilles Carpentier
  wp34s, another shutdown situation Andrew Nikitin 10 809 06-19-2013, 01:52 AM
Last Post: Paul Dale
  Using PIL-BOX & ILPer to Transfer Programmes from PC to HP41CX? Michael Lopez 5 494 06-25-2012, 09:31 AM
Last Post: Michael Lopez
  Science Project with HP41CX and Arduino? Fouad M. Kaadou 9 672 01-04-2012, 04:04 AM
Last Post: yves
  Strange HP41CX Problem - HELP! Fouad M. Kaadou 2 307 11-20-2011, 05:12 AM
Last Post: Fouad M. Kaadou

Forum Jump: