HP 28S - how to open - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: HP 28S - how to open (/thread-8727.html) |
HP 28S - how to open - beerlim - 07-24-2017 10:20 AM I have a 28S and the 2nd bottom row on both sides of the calculator are not working. How would I go about opening the calculator? I can not find it on youtube either. Thanks RE: HP 28S - how to open - Philippe - 07-24-2017 09:03 PM Hi, A french book "Voyage au centre de la HP 28c/s" written by Lalande and Courbis explain the procedure. This great book can be downloaded here : http://www.courbis.fr/Voyage-au-centre-de-la-HP28-c-s,17.html It's free but you can make a donation. Have fun, Philippe RE: HP 28S - how to open - Jlouis - 07-25-2017 02:31 AM (07-24-2017 10:20 AM)beerlim Wrote: I have a 28S and the 2nd bottom row on both sides of the calculator are not working. Try this here Good luck RE: HP 28S - how to open - beerlim - 07-25-2017 11:48 AM (07-25-2017 02:31 AM)Jlouis Wrote:(07-24-2017 10:20 AM)beerlim Wrote: I have a 28S and the 2nd bottom row on both sides of the calculator are not working. Well I went ahead and started to document it. http://www.teawea.com/how-to-open-a-hp-28s-calculator/ RE: HP 28S - how to open - Jlouis - 07-25-2017 05:24 PM (07-25-2017 11:48 AM)beerlim Wrote:(07-25-2017 02:31 AM)Jlouis Wrote: Try this here Fantastic job! Really thanks for This! Opening a clamshell HP calculator - done in 2011 - striegel - 07-25-2017 07:24 PM This has been covered in the past with very detailed photos. http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv020.cgi?read=185329 RE: HP 28S - how to open - beerlim - 07-29-2017 10:24 AM (07-25-2017 07:24 PM)striegel Wrote: This has been covered in the past with very detailed photos. How do I get the images to work? They do not show up for me, that is why I started to document my own. http://www.teawea.com/how-to-open-a-hp-28s-calculator/ To go a step further: My goal would be create a new case. RE: HP 28S - how to open - Didier Lachieze - 07-29-2017 10:41 AM You should be able to see the images here. RE: HP 28S - how to open - beerlim - 08-31-2017 04:01 AM I finished documenting the opening of the HP28S. Same URL as before Then I cleaned the contacts and put it back together just to see if it worked. I could not believe it, it really worked. So my next step will be to create a new case to transfer everything from the old "destroyed" one to the new. Will see how that goes. RE: HP 28S - how to open - beerlim - 11-28-2017 11:11 AM Well the next step is planed by creating a new case for the HP-28 We are half way there https://www.teawea.com/category/tech-games/hp-28s/ RE: HP 28S - how to open - SlideRule - 11-29-2017 04:34 PM (11-28-2017 11:11 AM)beerlim Wrote: … the next step is planed by creating a new case for the HP-28… Just a suggestion, but wouldn't the Door-in-Back version of the battery compartment {as deployed on the final HP-19BII model} have enhanced longevity/utility over the Door-on-Side version? BEST! SlideRule RE: HP 28S - how to open - pier4r - 11-29-2017 07:45 PM (11-28-2017 11:11 AM)beerlim Wrote: Well the next step is planed by creating a new case for the HP-28 Have you considered the wiki4hp as well? When I can I'll add your site as link (see my sign) |