Re: [Thinkpad] TP240 won't take AC power in

Bruce and the rest of the TPML...I traced the problem. One of the 2
chicklet shaped capacitors on the motherboard near the power switch seemed
to have been jolted loose by the impact and came completely off. I spent
the night soldering it back in....well, I need to pick up a solder sucker,
it seems. I put in too much solder and it made quite a mess. Bottom line
is...It should still work with the battery in, but as for the AC...well,
either I solder the chicklet capacitor back in, or I spend around $80 on a
new motherboard (Definitely not my choice). I wish I uploaded those
parts pics before I disassembled the machine. Oh well, let's see if the
Rat Shack and my pair of bare hands would bring this sucker back to life.

Jesus. IBM really went miserly on them solder. It's literally
paper-thin.

On Tue, 16 Mar 2004, Bruce Markowitz wrote:

> I have seen that problem in the 600 series, the cure has been to replace the
> system board. Sorry I can't be of more help.
> ----- Original Message -----
> From: "Kev" <co273@bfn.org>
> To: "Cottrell, Eric" <ecottrell@doble.com>
> Cc: "ThinkPad Mailing List" <thinkpad@stderr.org>
> Sent: Tuesday, March 16, 2004 1:51 PM
> Subject: RE: [Thinkpad] TP240 won't take AC power in
>
>
> > Hmm...How do I diagnose that? Wiggle it around and see if I get
> > intermittent power? I wonder if there is a more comprehensive way of
> > tracing it.
> >
> > On Tue, 16 Mar 2004, Cottrell, Eric wrote:
> >
> > > Hello,
> > >
> > > I would suspect a soldered connection on the coaxial power plug came
> > > loose.
> > > I would look inside at the coaxial power plug area.
> > >
> > > 73 Eric
> > >
> > > -----Original Message-----
> > > From: Kev [mailto:co273@bfn.org]
> > > Sent: Tuesday, March 16, 2004 11:30 AM
> > > To: ThinkPad Mailing List
> > > Subject: [Thinkpad] TP240 won't take AC power in
> > >
> > >
> > > Hi guys. Some black gentleman on the subway knocked my 300MHz Thinkpad
> > > 240 onto the floor this morning. He apologized profusely and ran off to
> > > the next car. The machine was in a nylon protector pouch and it is on
> > > suspend.
> > >
> > > I powered it back up immediately and everything seemed functional.
> > > However, when I plugged it back up at work, I discovered to my dismay
> > > that
> > > the machine would not take power from the AC adapter anymore. Won't
> > > charge the battery, won't take power from the mains...would only work
> > > with
> > > the battery. So, the good question is...is it time for a new
> > > motherboard,
> > > or is there something else I should try first? Any user experience in
> > > this matter? Try a disassembly/multimeter trace first?
> > >
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Received on Wed Mar 17 01:57:30 2004