Fe: [rescue] Power and Imac

velociraptor velociraptor at gmail.com
Wed Apr 27 16:52:29 CDT 2005

On 4/26/05, Arno Kletzander <Arno_1983 at gmx.de> wrote:
> "Atom" wrote:
> > I just saved 2 macs from being tossed. One is a g3-600mhz iMac and
> > the other one is a g4 powermac.
> >
> > The G3-600 seems to have an issue with the CRT. When I power it up
> > the screen slowly fades out until it's black and gone. The rest seems
> > to work just fine.
> >
> > The G4-400 Gigabit? desktop somehow starts to smell really bad after
> > plugging in the power. It wont power up and will smell like burnt
> > circuity. I "blame" the smell coming from the powersupply so anybody
> > know where to get a "cheap" powersupply for those. Or if I can
> > convert an ATX PSU besides the fact that ATX would not have +28v?

Nice scores, both.  There are some docs on converting ATX
PSUs to be used in Macs.  You can google and see what you
find.  I can check my bookmarks archive to see if I still have
links.  Checking at lowendmac.com might be a start, as well.

> Perhaps you could use what you find at:
>    http://www.whoopis.com/computer_repair/
> I just found this resource of Apple User and Service Manuals a few days
> after I saved an IMac DV (slot-in drive) which seems to have a bad PSU as
> well. It just sits there and emits a barely audible high-pitched noise, but
> won't turn on.
> The service manual is mostly a boardswapper guide, but at least it tells
> how to rip that awful (er - I meant awesome, of course!) case apart.
> even a picture on where you can measure the 5v Trickle / Standby voltage.

If you don't find what you need at that site, hit me up in private
email. I may have what you need, as I have a rather extensive
Mac service manual archive.


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