34C LED Problem



#5

My 34C displays a small "dot" on the upper Left Hand Side of the display, something like:

' 00000000 (where the single quote indicates the "dot")

Is this normal?

The dot is quite bright (about half normal LED brightness). It is made up of 4 pixels, the same size in total as the decimal point indicator.

I never noticed this before - think it is new. Any ideas?

Many thanks!


Edited: 2 Nov 2008, 8:38 p.m.


#6

According to p. 271 of the manual, the "raised decimal" is a low-battery indicator for 1-25 minutes of power remaining. I recommend a replacement battery if you are still using the original batteries from the 80's.


#7

Many thanks!

It's my first set of Alkaline AA's so I guess I've used them nearly to exhaustion in a matter of weeks - many thanks again :)

PS. It's my first HP LED... after 41CV, 12C, 48GX.

Edited: 2 Nov 2008, 10:25 p.m.


#8

Hi Ed,

Quote:
It's my first set of Alkaline AA's so I guess I've used them nearly to exhaustion in a matter of weeks

Bear in mind that the total expected run time on a single charge (or set of batteries) for most HP LED calc's is measured in hours (4 to 6 at most). I use flatnose rechargable AA's in my 34C with good results, which I recharge externally. If the raised portion of the battery contacts in your 34C are broken off (a common problem), then you can use normal dimension batteries (with the button on the positive end).


Best regards, Hal


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-34C Draining battery quickly Bill Crowell 2 814 09-08-2013, 08:30 AM
Last Post: aj04062
  HP-34C Curiosity Matt Agajanian 7 1,619 08-23-2013, 06:02 PM
Last Post: Stephan Matthys
  HP-34C Emulator BShoring 8 1,607 03-30-2013, 05:04 PM
Last Post: BShoring
  Safe charging LED HP calcs Anoop Sahal 6 1,361 03-29-2013, 09:08 AM
Last Post: Anoop Sahal
  Looking for PRNG for HP-34C Dave Boyd 3 1,018 09-22-2012, 07:10 PM
Last Post: Mike T.
  A longstanding HP-34C mystery Matt Agajanian 11 2,075 05-03-2012, 02:29 AM
Last Post: Alexander Oestert
  HP 34C display problem james summers 11 2,368 04-05-2012, 06:07 PM
Last Post: james summers
  The smallest ever LED RPN calculator Michael de Estrada 11 1,974 02-16-2012, 10:24 PM
Last Post: Bill Wiese
  HP 34C and 67 for Android Vincent Weber 16 2,627 01-24-2012, 11:38 AM
Last Post: Alexander Oestert
  Unusual non-HP RPN (red led display) to restore... Cristian Arezzini 11 1,757 10-24-2011, 02:58 PM
Last Post: Martin Pinckney

Forum Jump: