From: Johannes Wolf (mp2100_at_mail-gw.estec.esa.nl)
Date: Thu Mar 27 2003 - 23:51:42 PST
Laurent,
thanks for the report.
It seems my first guess was not that far from the truth.
The Technicians might simply have forgotten to resolder the wires.
They are humans too, but of course that should not happen...
Cheers
Johannes
> -----Original Message-----
> [mailto:newtontalk-bounce_at_newtontalk.net]On Behalf Of Laurent Daudelin
> Sent: Thursday, March 27, 2003 7:40 AM
> Subject: Re: [NTLK] Battery packs not recognized anymore
> 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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