How to fix the powersource's connector
of a Powerbook G3 (Kanga), by soldering.
As usual I'm not responsible of what you do to your
computer by following my advices.
The PB wasn't charging the battery anymore. Neither with
the original charger or with another one. The owner had to
fight with the connector to get some juice from it.
As usual, first you turn off the beast, then you unplug
the powersource, the battery and the optical drives (a CD
Turn the PB face down to unscrew 3 torxes 8.
You can notice the lack of battery (down left) and the lack
of cd player (upper left). At far left, my ultimate device
to gather screws. It is meant to make ice, the Apple way
Once you've unscrewed the torxes, the keyboard is no
longer secured. You can now lift lightly from front
You have to be carefull not to rip appart the flat connector
Under the trackpad, a big space ,
witch must be the biggest defect at Apple since it lasted
from the Powerbook 190 up to the Powerbook G3. I'll talk
about that in another article (only
in french now).
You have to pull lightly the keyboard toward you...
... to disengage the wedge
just under the speakers.
Lift lightly the connectors wedges
(from 1 to 2 mm) and then unplug the flat connectors
You can unplug the memory card, fastened by its connector
on the motherboard .
We unplug the speakers "dock", just after disengaging the
flat connector .
It is hold in place by a connector
that you'll have to lift lightly (use a mini lever, a small
screwdriver or a toothpick, etc.). Don't forget the screw
(still a torx 8)
All the screws are different (color, threat, lenght)
-> you'll hardly make a mistake here.
We swing the "dock" toward us and we can now unplug the
backup battery connector.
To take off the screen, you'll have to disengage the two
lateral panels. You open the screen widely .
Use your fingers or a mini lever. Unclip both covers by
pulling up .
Once you have removed the right cover, you can see the
screws that hold the screen's right hinge in place.
On the left side, we now start to gain access to the
power supply connector .
you can see that the middle connector is loose. Some other
parts are bouncing around, too .
This one is not right too. This panel holds both of the
ejection switch for PCMCIA cards .
It should be soldered here .
To allow us to work with comfort, we will need to remove
the handrest. It is clipped 6 times .
After unclipping, we flip it gently on the powerbook. We
now unplug the flat connector .
Pay attention to the ferrite. It tends to wander around. You
can now see clearly that the trackpad's button is broken
See my previous comment about it.
3 torx screws
to undo and you can now free the hard drive. Pay attention
to the flat connector, again. Flip it gently toward you.
We now unplug the connector .
After the video connector
has been unplugged, unscrew both screws
from the left hinge. Don't forget to hold the screen.
Two more torx 8 remain
to the right.
Here are the two items that hold the hinges .
They are very different -> no worries, you won't switch
them by mistake when putting everything back in place. You
can now lift the screen and put it in a secure place.
If you want to remove the whole motherboard, unscrew
everything here .
It gives you access to those hidden screws
(nothing to do with trackpad's problem ;-)).
I choose to simply make some room. Unplug the power
supply board, by lifting up. At its end, you'll have to
unplug the battery connector by taking it off from its
The power supply board was connected here .
Now, you can undo the two screws
that holds the G3 heatsink.
Yet another flat connector to unplug .
The plastic parts to lift (1 or 2 mm) .
You'll have to withdrew the flat connector from this guide
You can now lift the ethernet (or modem) card. Pay
attention to do it toward the inside, since it is under the
edge of the powerbook .
The connector, from the ethernet card side
and from the motherboard card side .
and a metallic piece .
It can be removed, but only if you really want to ask
yourself where it belongs when rebuilding the computer.
There's one on both hinges support.
The area is clear, we can now solder back. The 4 pins
go in the 4 holes .
have to be in front of the pushing buttons .
The part with the pins is plugged on the motherboard. I just
leave it there, and use it as a support.
The beast has found back its place.
The 4 weldings ,
used to eject the PCMCIA cards.
And the 3 weldings
that hold in place the power connector.
As usual, to reassemble, just do the same but in backward
If you wish to thank or forsten me...