HP 41CV repair required



#4

Hi
Can anyone help please?
After 29 years of use my HP41CV seems to be broken?!
A few weeks ago, the display went erratic but that resolved itself after I opened the casing slightly to look inside (and then thought better of it and closed it).
Now, when I press 'ON' the calculator just beeps once and the display is blank.
Is there a simple solution to this that I am missing?
If not, then does anyone provide a repair service?
Thanks
Geoff


#5

Hello Geoff,

try this simple procedure.
With the calculator switched off press: [BACKSPACE]+[ON]
If it doesn't work at 1st try a few more times.

#6

Removes the batteries and leave 12 hours. Did you use some module? Synthetic programming? Old batteries?


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP9810A and HP9862A - ROM required? Thomas Falk 0 530 12-07-2013, 09:49 PM
Last Post: Thomas Falk
  HP 41CV Repairs William Mabotja 3 681 11-20-2013, 04:45 PM
Last Post: Mike Powell
  "Packing" syndrome of my HP-41CV PGILLET 12 1,489 11-03-2013, 02:46 PM
Last Post: Hans Holzach
  OT: My brain is failing me again. Help with numerical / mechanical problem required. Harald 4 750 07-01-2013, 10:31 AM
Last Post: Harald
  HP-41CV - A Walk Down Memory Lane Tom Lewis 9 1,128 03-18-2013, 11:14 PM
Last Post: BShoring
  HP-65 logic board repair - help required Alberto Fenini 1 498 02-17-2013, 06:39 PM
Last Post: John Robinson
  Help with geometry problem required Harald 39 3,460 01-22-2013, 10:21 AM
Last Post: Walter B
  [WP 34S] New GCC - Testing required Marcus von Cube, Germany 3 639 01-07-2013, 01:59 PM
Last Post: Marcus von Cube, Germany
  HP-41CV power problem Don Davis 2 555 10-11-2012, 09:13 PM
Last Post: Don Davis
  HP-41CV layout vs Voyager's, 35s Ben Huntsman 17 1,866 09-17-2012, 05:30 PM
Last Post: Luiz C. Vieira (Brazil)

Forum Jump: