[AUUG-Talk]: Re: [BUGA] Replacing/repairing Apple Powerbook power supply?

Brett Lymn blymn at baesystems.com.au
Mon Jan 16 12:53:48 EST 2006

On Mon, Jan 16, 2006 at 10:33:37AM +1030, Greg 'groggy' Lehey wrote:
> I then plugged it in and... it worked!  Restarted the machine,
> recovered file systems, and worked normally.  For about 20 minutes.
> Then it failed again.  It was also quite warm when I found it, an
> unknown time later.

mmm that sounds like a cracked solder joint.  They can do this, work
fine when the unit is cold but as things warm up the joint goes open
circuit making the unit misbehave.

> So I'd guess that there's something wrong with the power supply.  It
> doesn't look too good, either: there seems to be something inside the
> case that has melted, maybe electrolyte from a capacitor.  See
> http://www.lemis.com/grog/Photos-20060116.html for a photo.

looks yummy.  on the bright side if you can get the unit open then the
fault should be fairly easy to spot.

Brett Lymn

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