Re: [NTLK] Battery packs not recognized anymore

From: Laurent Daudelin (laurent.daudelin_at_verizon.net)
Date: Wed Mar 26 2003 - 22:40:20 PST


on Mon, 24 Mar 2003 17:33:58 +0100, "Johannes Wolf" at
mp2100_at_mail-gw.estec.esa.nl wrote:
>
> I do not know how this is realised in the Newt hardwarewise, but in fact
> there is a connection from one of the pads to the battery that is used to
> determine whether there is an alkaline in or not.
> The pure presence of a thermistor between the two contacts is important for
> the temperature reading, but not for recognising the battery type.
>
> But from my experience most of the problems have a rather simple cause.
> This might be bad contact in this case.
> The springs may have lost tension or one of them might be broken.
> But you can check this easily by opening your Newt and then openeing the
> battery compartment.
> If the Newt is open you already can see the two wires connected to the
> contact springs.

For those that might be interested in the resolution of my problem, I did
open my Newton and right there, I saw what was the problem: both the red and
black wires that connect the 2 springs to the motherboard were unsoldered
from the motherboard! I soldered them back and everything was working again.
That means that since I switched to that unit, I was not recharging my
battery packs and after I did the rotation of my 3 battery packs, I realized
that the Newton was not charging anymore.

What I can't explain is how those 2 wires were disconnected from the
motherboard. This unit was serviced by Apple and I put it on the shelf as my
backup unit until I broke the screen on the MP2100 I was using. I've never
opened it so I can't explain this, except that sometimes, technicians will
screw up...

-Laurent.

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Laurent Daudelin   AIM/iChat: LaurentDaudelin    <http://nemesys.dyndns.org>
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