HP-71B dead!
#1

I have a dead HP-71B
it did work until I pulled out a ROM when the machine was switched on (accidently)
Can I rectify this?
Thanks

#2

Hi,

did you try to reset (pull out batteries and shorten contacts) the machine? Are there some more cards in it ? Did you try to remove them ?

Best regards

Andreas

#3

Yes, Andreas, I removed alll cards (including HP-IL) so it is completely empty.

Using batteries or using the Power supply unit has no effect and the system will not start (nothing on the LCD).

I will try and short the battery contacts tonight but I'm not sure if this will make any difference!

I did not know removing a ROM whilst the machine was powered on would make any difference!!!!

Can you (or anybody) tell me if this is a well known issue?

Thanks

James

#4

James,

The bad news: The owner manuals for the HP-71 do contain a warning not to install or remove any module while the unit is on.

The good news (quoting from a manual): "If the computer is on while a module is being installed or removed, it might reset itself, causing all stored information to be lost." There is no warning that any real damage will be done.

I hope it eventually works for you.

Tom

#5

Guys

Andreas was correct here - shorting the battery connectors made the system come alive again when I applied power!!!

GREATTTTTTTTTT!!!!!!!!!!!!!

Without this I would have probably thrown the unit away!

thanks Andreas/Tom for all your help!

James

#6

> Without this I would have probably thrown the unit away!

Feel free to use the money you would have spent on a replacement to order a set of MoHPC CD-ROMs.

;^)

#7

Great to hear, James.

Enjoy the 71B. For BASIC programming, especially if trig functions are required, it is the best!

Tom

#8

Well it was such a naughty machine, you really should throw it away. Use my trashcan, please.



Possibly Related Threads…
Thread Author Replies Views Last Post
  Previously dead WP 34S is resurrected! JayV 2 1,260 04-18-2013, 12:41 AM
Last Post: Walter B
  Does anyone want dead 82001 battery packs? Michae Altmann 6 1,944 03-15-2013, 07:32 PM
Last Post: Harald
  Dead 50g after 3 months Chris Smith 13 3,131 03-13-2013, 12:28 PM
Last Post: chris smith
  More or less dead HP-67 Bernd Ulmann (Germany) 7 2,255 02-09-2013, 12:53 PM
Last Post: Ignazio Cara (Italy)
  HP-29c keyboard dead 2nd row problem Xavier A. (Brazil) 6 2,203 07-17-2012, 07:09 AM
Last Post: Xavier A. (Brazil)
  WP 34S and 'dead' HP20B Rob Willett 17 4,253 10-20-2011, 06:49 PM
Last Post: Egan Ford
  hp-12c from HP.com arrives with dead batteries Masaki Adachi 4 1,697 09-30-2011, 05:25 PM
Last Post: Masaki Adachi
  The calculator is dead - viva la HP 15C Limited Edition Joerg Woerner 38 9,107 09-04-2011, 08:44 AM
Last Post: hpnut
  offtopic: is HPCALC.ORG dead? x34 2 1,241 03-15-2011, 06:44 PM
Last Post: DeboT
  30b Dead 5 Key Norman Dziedzic 10 2,539 02-03-2011, 03:36 PM
Last Post: Norman Dziedzic

Forum Jump: