27 Sep
2011
27 Sep
'11
12:04 p.m.
--- On Mon, 9/26/11, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
Ah, OK... That makes snese I guess.
I am pretty sure (withouyg seeing the article) that this can work in any
'fullnut' HP41 (since the keyboard/display [1], etc are the same for all
3 models), but not in a halfnut. Very few hardware hacks work in a halfnut..
[1] OK, according to the service manual some earlier machines had a
different display driver module, which need a different value of
capacitor on the logic board to make the auto-power-off happen after the
right amount of time.
I am suprised it needs a 41CV (only).
The author set out to repair his CV. Anyway, it doesnt' totally solve the problem.
The most
common problems on
the 41 series are basically mechancial (cracked plastic
posts that hold
the case togethter, damaged flexiprint from battery
leakage, etc), and
can you say 'fabrication'. can often be fixed. But not all electronci
problems are on
the logic
PCB. I've had the LCD display 'glass' fail (leakage of the
LCD material
it's become my understanding very recently (due to knowledge I've
obtained long ago) that this isn't as much of a problem as it seems. As
long as you're adventurous.
Uh, since you have so many 41s, would you consider parting with 1 or
2? I doubt you're looking for anything I have, so all I can offer is money.
I may well be able to find something. Are tese machines that rare?
-tony