HP Forum Archive 20

[ Return to Index | Top of Index ]

HP 25 programming issue Message #1 Posted by Fouad M. Kaadou on 4 Dec 2011, 3:07 p.m. Hello, I have an HP-25 that has a programming problem. When I first received the calculator it did not have this issue. The issue: when I go to PRGM mode any step I enter reults in a 'GTO 00' command. If I press any of the shift keys the display will show that it is in shift mode but when I click on another key it just puts GTO 00. Any ideas? - Fouad

Re: HP 25 programming issue Message #2 Posted by Ignazio Cara (Italy) on 5 Dec 2011, 2:29 a.m., in response to message #1 by Fouad M. Kaadou Hi, you have a 25 with a bad RAM chip. The only source of spare parts is another 25 with other issue. HTH. Ignazio

Re: HP 25 programming issue Message #3 Posted by Fouad M. Kaadou on 5 Dec 2011, 10:15 a.m., in response to message #2 by Ignazio Cara (Italy) Tkanks Ignazio. Do you know which is the RAM chip so I can make the transplant? -Fouad

Re: HP 25 programming issue Message #4 Posted by Ignazio Cara (Italy) on 5 Dec 2011, 12:03 p.m., in response to message #3 by Fouad M. Kaadou It's marked 1820-1564. Ignazio

Re: HP 25 programming issue Message #5 Posted by Fouad M. Kaadou on 5 Dec 2011, 12:26 p.m., in response to message #4 by Ignazio Cara (Italy) Thanks . I just hope the other one is working. -Fouad

[ Return to Index | Top of Index ]

Go back to the main exhibit hall