HP-41CV: Strange "Power Management"

[JurgenRo]

(05-06-2023 08:33 PM)TallKey Wrote:  

(05-06-2023 05:59 PM)JurgenRo Wrote:  I own a HP-41CV that otherwise works flawlessly, except for one quirk : If the calculator is switched off for more than 12 hours (experiment under memory lost condition), it can no longer be switched on. After removing and reinserting the batteries, everything works fine again. Any ideas anyone?

Thanks in advance
Juergen

First thought is the 41 is detecting low battery and will remain off.

Is the calculator speed modded (time to complete CAT 3 is)?
Are you the original owner?
NO modules, same failure?

-Test for 1.3v or above per cell. Can't recall the min operable number, about 1.3v ought to give you good results.

Calc is not modded, fresh batteries, no modules, MEMORY LOST condition ...