7 Mar
2003
7 Mar
'03
11:10 p.m.
Jos,
You have a bad Data Storage IC. Depending on which version board is in your 41 it may
have from 1 to 4 DS ICs but they are custom built ICs made by HP specificly for the HP 41
so you'll never find one. Time to find another 41 for parts. There are plenty of htem
out there that have broken displays, bad power supply ICs and/or corroded battery
terminals.
Joe
At 12:20 PM 3/10/03 +0100, you wrote:
My (unexpanded) HP41c developed a strange problem...
It still knows how to do the maths, but any value stored inside a register
gets lost : i.e. 1234 STO 12, RCL 12 yields 0.000....
Any pointers ( also pointers to a more suitable group ? )
Jos Dreesen