[NTLK] 2000 not switching on

[Michael Sheflin]

And there's no backup battery; my mistake.  Could oxidation on the logic
board cause a short?  If it were a capacitor/degradation issue, I would
expect a wonkier result.  My 120 briefly started displaying random blocks
on the screen but then reverted after several days unpowered (which I'd
guess is the beginnings of a capacitor failure).  But not turning on at all
randomly seems like it might be a short.  And your mention of the heat
(/humidity?) might support that.

You could try opening just the case (
https://www.ifixit.com/Teardown/Apple+Tablet+Teardown/2153) to see if
there's any very obvious oxidation on the logic board itself.

I mean... just because it's costless...  Have you tried blowing in the PC
card slots/maybe wiping very gently with a qtip?  Have you looked in those
slots for oxidation?

Believe it or not, "Scrubbing Bubbles" is pretty good at eating corrosion
off of logic boards.

Good luck,
Michael


On Tue, Sep 7, 2021, 2:09 PM Rob Moody <robmoody at fundamental-learning.com>
wrote:

> Hi Michael,
> Thanks for the tips. I have tried “pulling down” on the power switch while
> pressing the Reset button…still nothing.
> I have tried all combinations of power switch, reset button, battery tray
> and power pack…to no avail! In a previous ownership of a 2000 this had
> always worked….but this replacement unit seems totally dead!
>
> Sent from my iPhone
>
> > On 7 Sep 2021, at 18:05, Michael Sheflin <sheflinm at gmail.com> wrote:
> >
> > Oxidation may not be your issue,  fatal.  I've, unfortunately, had
> > oxidation at the battery terminals in my working 2100 for years at this
> > point.  I have not tried to clean it, though I might reconsider.
> >
> > I'm not endorsing the following; I kind of doubt this will resolve
> things,
> > but see:  https://discussions.apple.com/thread/122311. .  Have you tried
> > screwing with the reset button?  And have you tried screwing with the
> > backup battery?  If there isn't one, have you tried putting one in?
> >
> > Try the power button while holding rest, also.   (But don't delete your
> > files when prompted.)
> >
> > Best,
> > Michael
> >
> >> On Tue, Sep 7, 2021, 11:18 AM Rob Moody <
> robmoody at fundamental-learning.com>
> >> wrote:
> >>
> >> Hi there Newtonians, Newt Crew….
> >> Well, I’ve made sure that there were no PC Cards inserted (easy, as I
> >> don’t have any!) , left the 2000 off power for a couple of days…nothing
> >> from power supply or AA tray…I even opened up the back plate carefully
> to
> >> see if I could get into the battery “chamber”….and using a torch I could
> >> see some oxidation…so I carefully brushed vinegar around the terminals
> and
> >> left it to dry (bit of a heat wave here at the moment!)….but still no
> >> boot!  I didn’t want to go any further into the 2000’s innards for fear
> of
> >> breaking something….
> >> Any help appreciated!
> >>
> >> Sent from my iPhone
> >>
> >>> On 5 Sep 2021, at 06:18, Grant Hutchinson <
> newtontalkmessages at gmail.com>
> >> wrote:
> >>>
> >>> 
> >>>> On Aug 31, 2021, at 5:36 AM, Rob Moody <
> >> robmoody at fundamental-learning.com> wrote:
> >>>>
> >>>> Also sent an email to Frank via his site (as he was so helpful to me
> >>>> many years ago) but haven’t heard back…is he okay and doing well?
> >>>
> >>> Hey Rob ... it’s great to see you on the list again. Sorry that you’re
> >> having issues with your new MP2000. As far as we know, Frank is still
> >> around and well ... just not active on the list every day.
> >>>
> >>> I’m sure we’ll get you fixed up.
> >>>
> >>> g.
> >>>
> >>> ----------------------------------------------------------------------
> >>>
> >>> Grant Hutchinson
> >>> NewtonTalk List Dad & Interweb Custodian
> >>>
> >>>
> >>> ----------------------------------------------------------------------
> >>>
> >>> http://newtontalk.net
> >>> http://twitter.com/newtontalk
> >>
> >> ----------------------------------------------------------------------
> >>
> >> http://newtontalk.net
> >> http://twitter.com/newtontalk
> > ----------------------------------------------------------------------
> >
> > http://newtontalk.net
> > http://twitter.com/newtontalk
>
> ----------------------------------------------------------------------
>
> http://newtontalk.net
> http://twitter.com/newtontalk