41C Memory Module 82106A Check / Test



#8

Hi again fellows,

I´d like to check / test an HP-82106A Memory Module for failure. Does exist a program, embedded function or standard procedure available and useful? I suspect a malfunctioning behavior, unfortunately. Many thanks!

BTW, the Card Reader / Writer was successfully repaired and it works great after almost 26 years of inactivity. HP quality is amazing! The gummy wheel was replaced by a medical silicone tubing: it fits and works perfect! "Gracias" a lot Karl-Ludwig Butte.

Albert


#9

If I am not mistaken, the service module can test the memory module. You will need either the real module (not common), or have an image of it loaded in some ROM emulation device.

The memory module loads itself in upper memory and becomes data memory by default, you can resize if you want to. I do not remember how many registers you should have (each module adds 64 registers), but if you find out, you can always write an RPN program put various numbers in it and see that they are recalled properly. Unfortunately, it is not easy to test with arbitrary bit patterns this way.

#10

Hi,

If you're handy with a solder iron, I'll gladly send you the internal circuit of the 82106A module so you can replace the defective one.

Let me know if you're interested.

Best regards.

Diego.


#11

Hi Diego,

Nice! I've got some skills regarding electronics. I accept your proposal, it sounds a challenge. Thanks in advance!

Albert


#12

Hi,

Please mail me with your shipping address.

Regrettably I will take several weeks to send it because I'm not at home, but'll have it for sure :-)

Best

Diego.


#13

I sent you an e-mail; I'm ready to start. Thanks again,

Albert


#14

Fine, you've got mail too.

Cheers


Possibly Related Threads…
Thread Author Replies Views Last Post
  Reasonable price for a 41C, Quad Mem, Time, Navigation and Card reader module? Eelco Rouw 10 4,915 12-12-2013, 01:52 AM
Last Post: Eelco Rouw
  HP-42S ESD self-test Yriarte 2 1,618 10-24-2013, 09:08 AM
Last Post: Yriarte
  Prime Version Check Thomas Chrapkiewicz 1 1,167 10-21-2013, 10:12 AM
Last Post: Han
  So I took a test with my Prime today ... kris223 12 3,665 09-25-2013, 07:19 PM
Last Post: kris223
  Concern about Voyager keyboard test Matt Agajanian 2 1,480 08-30-2013, 07:56 PM
Last Post: Matt Agajanian
  Voyager Self Test Mike (Stgt) 5 2,049 05-16-2013, 03:28 PM
Last Post: Mike (Stgt)
  HP 41 Advantage module test RyanM 6 2,195 02-27-2013, 02:30 AM
Last Post: Angel Martin
  HP-41C Custom Survey Module Identificaiton Help Dan Grelinger 0 964 01-27-2013, 01:51 PM
Last Post: Dan Grelinger
  Physics Test Howard Owen 37 8,889 01-24-2013, 03:33 AM
Last Post: Csaba Tizedes (Hungary)
  How to check / repair a HP 82106A module for HP41C calculator ? Eduardo Mingo 13 4,526 01-07-2013, 11:05 AM
Last Post: Diego Diaz

Forum Jump: