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Martin Trautmann

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Since: Feb 05, 2004
Posts: 155



(Msg. 1) Posted: Thu Nov 29, 2007 7:39 am
Post subject: iBook G4 logic repair program
Imported from groups: comp>sys>mac>portables, others (more info?)
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 >> Stay informed about: iBook G4 logic repair program 
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Florian Zschocke2

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Since: Mar 29, 2004
Posts: 199



(Msg. 2) Posted: Thu Nov 29, 2007 11:42 am
Post subject: Re: iBook G4 logic repair program [Login to view extended thread Info.]
Archived from groups: comp>sys>mac>portables (more info?)
Martin Trautmann schrieb:

>
> Of course Apple denies everything. I doubt that there will be any
> success!?
>
> What's your guess? Will there be any free replacement, as there was for
> G3?
>
No. I guess that they don't have the number of logicBoards they would
need. The fault of the motherboards in these IBooks is located in the PCB,
so that you can't repair these boards. All these problems with the IBooks
are caused by the combination of a weak bottom case and bottom mounted
logicboard. The on the G3s there was the GPU located on the G4s there is a
power-management IC. Apple did know this design flaw since the IBook G3
and changed nothing over years. For me that is the real shame.
The only hint I can give all IBook owners that have a still working IBook
- never grab it with one hand. Take it only on the frame with both hands.
If you take it with one hand you will press against the logicboard and the
board will become bad soon.

Florian

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Martin Trautmann

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Since: Feb 05, 2004
Posts: 155



(Msg. 3) Posted: Thu Nov 29, 2007 12:41 pm
Post subject: Re: iBook G4 logic repair program [Login to view extended thread Info.]
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Tom Harrington

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Since: Aug 19, 2003
Posts: 940



(Msg. 4) Posted: Thu Nov 29, 2007 12:41 pm
Post subject: Re: iBook G4 logic repair program [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
In article ,
Martin Trautmann wrote:

> On 29 Nov 2007 15:56:38 GMT, Florian Zschocke wrote:
> > No. I guess that they don't have the number of logicBoards they would
> > need. The fault of the motherboards in these IBooks is located in the PCB,
> > so that you can't repair these boards. All these problems with the IBooks
> > are caused by the combination of a weak bottom case and bottom mounted
> > logicboard. The on the G3s there was the GPU located on the G4s there is a
> > power-management IC.
>
> Hi Florian,
>
> do you have any recommendation, which IC or which location this would be
> to look for?

I'm guessing he's referring to the problem described here:
<http://blogs.business2.com/apple/2007/05/danes_find_desi.html>.

A detailed report on the investigation can be found in a PDF linked from
here:
<http://www.forbrug.dk/presse/nyheder/pressekit/ibookg4/lab-report/>.

--
Tom "Tom" Harrington
Independent Mac OS X developer since 2002
http://www.atomicbird.com/
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