Likely cause of the display problems



#4

Doug --

You mentioned that your unit is likely an "older" one with pressed-together connections. I also have two older 34C's, one of which exhibited the same symptoms.

I'd believe that the cause is poor contacts. The cure would be disassembly and cleaning. Others have done it, but I have only taken the backs off. After all, I developed the dental floss trick...


#5

Thanks, Karl. I've kept handy a printout of your posting with the procedure, from back in October. I'm hoping a little *careful* cleaning will take care of the symptoms. I'll pass on the results after I have time this weekend to "play with those darned calculators", as my wife would say. Regards, Doug

#6

Success! It's working now after gingerly cleaning and reseating things, so apparently it was just a loose connection. I just hope it lasts...


Possibly Related Threads...
Thread Author Replies Views Last Post
  Can the display for a HP32Sii be replaced with the display from another model? Bruce Larrabee 8 744 10-10-2012, 10:05 PM
Last Post: Luiz C. Vieira (Brazil)
  HP-41C/LCD Display Problems Kevin Kitts 12 784 11-26-2010, 12:53 PM
Last Post: Randy
  10BII Display Problems? JT 1 208 02-22-2010, 02:10 PM
Last Post: Vieira, Luiz C. (Brazil)
  16 segment Led display would mimic a HP-41 display? Giuseppe Marullo 3 413 11-12-2009, 08:08 PM
Last Post: db (martinez, ca.)
  HP-35 display problems Robin F. 5 380 08-18-2005, 07:49 AM
Last Post: Tony Duell
  Display problems with the HP-38C Palmer O. Hanson, Jr. 1 185 02-12-2004, 01:23 PM
Last Post: David Smith
  Classic series display problems Spice_Man 0 138 02-14-2003, 02:40 PM
Last Post: Spice_Man
  HP-34C display problems Don Davis 4 323 01-11-2003, 05:06 PM
Last Post: Don Davis
  hp-11c - display problems Surfguy 3 251 12-21-2002, 06:22 PM
Last Post: Vieira, Luiz C. (Brazil)
  HP25 - Display problems ? Ingo 0 159 05-23-2002, 12:35 PM
Last Post: Ingo

Forum Jump: