HP42 Malfunction



#6

would anyone have any ideas concerning a work mates HP42 which is playing up.

a brief history of his troubles follows;

HP42 batteries went flat causing it to crash. new batteries were inserted, without causing the loss of program memory.
The calculator now inserts a series of zeros (about 6 or 7) before any other number which has been typed usually leaving only enough space for a single digit.
He hasn't tried any of the self testing procedures (he will when he finds his manual) nor has he tried the resetting procedures yet (but he will)

any thoughts or ideas would be welcomed.

regards Paul W


#7

Hello,

the first thing to do is a reset (ON+C).
No fear, it works non-destructive.

Regards,

Raymond


#8

yes that worked Raymond thankyou for your help.

i no longer have a hp42 but i used to and i found them one of the best machines (almost better then the hp41 series)

regards Paul


#9

Why is a hp42 better than a hp41 ?


#10

42S
+ mostly compatible with 41C
+ both registers and named variables A..Z
+ buil-in applications
+ more memory
+ more speed
+ less weight & size
+ IR print
- no I/O
- no expansion ports
- cumbersome ALPHA


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-97 Printer Malfunction Dan Lewis 17 952 11-25-2013, 10:18 AM
Last Post: Thomas Chrapkiewicz
  magnetic strip malfunction aurelio 7 468 01-14-2013, 12:25 AM
Last Post: aurelio
  HP 35 Keyboard Malfunction aj04062 1 183 08-07-2011, 11:53 PM
Last Post: John Robinson
  HP-41 + card reader = "Malfunction" ? BobVA 12 666 06-05-2011, 04:35 PM
Last Post: BobVA
  HP-29c malfunction symptoms Xavier A. (Brazil) 5 263 02-17-2009, 06:41 AM
Last Post: Xavier A. (Brazil)
  hp42 Minehunt NACHO 2 197 01-13-2009, 06:17 PM
Last Post: Nacho
  Malfunction of LCD segments on 41 display Jean-Michel 1 162 02-22-2007, 07:36 PM
Last Post: Eric Smith
  HP 49G Display malfunction Juan Viera (Uruguay) 2 205 12-13-2006, 08:30 AM
Last Post: Randy
  HP 17BII malfunction: cannot select RPN mode Rafael del Río 4 276 03-03-2006, 02:42 PM
Last Post: Paul Brogger
  HP42 Listings to HP48 via IR? Marx Pio 2 172 02-16-2006, 03:03 PM
Last Post: Pio

Forum Jump: