iBook G3 14" Logic Board Replacement

Use a coin to rotate the battery locking screw 90 degrees clockwise.

Lift the battery out of the computer.

Pull the keyboard release tabs (highlighted in red) toward you and lift up on the keyboard until it pops free.

If the keyboard does not come free, use a small flathead screwdriver to turn the keyboard locking screw 180 degrees in either direction and try again.

Flip the keyboard over, away from the screen, and rest it face-down on the trackpad area.

Push the wire clasp toward the AirPort card and pull it up to free it from the RAM shield.

Grasp the clear plastic tab on the AirPort card and pull toward the right.

Hold the AirPort card in one hand and use your other hand to remove the antenna cable.

Remove the two Phillips screws that secure the RAM shield.

Grasp the metal bracket on top of the RAM shield and pull upward to remove the shield.

Pull the keyboard cable up from the logic board, holding the cable as close to the connector as possible.

Use a pin to remove the three rubber feet from the lower case.

Remove the three newly-revealed Phillips screws.

Use a spudger or small flathead screwdriver to pry up the three metal rings that housed the rubber bumpers.

Remove the three hex screws using a T8 Torx screwdriver.

Remove the two Phillips screws on either side of the battery contacts.

Push the thin rims of the lower case surrounding the battery compartment in, bending them past the tabs, and then lift up to free that corner of the lower case.

Use a small flathead screwdriver to pry out the slot's lower rim and pull up on the lower case to free the slot from the tabs holding it.

Run a spudger along the seam between the lower case and upper case on the front of the computer to free the tabs locking the lower case.

Pull up on the lower case and continue to use the spudger as necessary until you hear three distinct clicks.

Continue to run the spudger around the front, right corner.

Once the front and sides of the lower case are free, turn the computer so that the back is facing you.

Pull the lower case up and toward you until the back tabs pop free.

Remove the small greasy springs with white plastic caps from either side of the battery contacts.

Remove the following 9 screws on the bottom of the computer:

Three 3 mm Phillips around the battery compartment.

Three 5 mm Phillips on the left and bottom edges.

Three 14.5 mm Phillips on the top and right edges (you may have to peel back the foil tape to reveal the screw near the security lock slot).

Turn over the computer and open it.

Pry up the magnet covering a Phillips screw near the middle of the computer.

Remove the following 3 screws on the edges of the keyboard area:

Two 6 mm Phillips underneath the keyboard area.

One 9 mm Phillips above the keyboard area.

With your fingernails, grasp the locking bar on either side and pull up a small amount (about 1/16" or 2 mm).

After disengaging the locking bar, slide the cable out of the connector.

Loosen the trackpad connector by pulling the top piece up slightly, freeing the trackpad ribbon.

Slide the orange trackpad ribbon out of the connector.

Use a straightened paperclip to open the optical drive tray, and pull it out about halfway.

Lift the upper case from the left side and use your other hand to pull out the right side in order to clear the power receptacle.

Lift the upper case enough to disconnect the blue and white power cable from the logic board.

Using your fingernails or a dental pick, carefully pry the connector from its socket.

Lift the upper case off completely and disconnect the red and black speaker cable from the logic board.

Remove the following 10 screws:

One 5 mm Phillips at the upper, right corner of the battery compartment.

Nine 6 mm Phillips scattered around the shield.

Lift the bottom shield off.

Remove the single Phillips screw on the left side of the fan.

Lift the fan out of its housing and disconnect it from the logic board.

Remove the following 16 screws:

Five 3 mm Phillips (these have smaller heads than the others).

Three 5 mm Phillips.

Eight 6 mm Phillips.

Lift the top shield up from the right side, minding the upper left corner, which may catch on the metal framework.

Remove the single strip of tape running across the modem.

Remove the single Phillips screw securing the display data cable to the metal framework.

Move the display data cable in order to access and remove a single Phillips screw from the front left corner of the modem.

Remove the single Phillips screw remaining at the upper, right corner of the modem.

Lift the modem from the logic board on the right side, being careful not to strain the display data cable.

Disconnect the modem cable from the upper, left corner of the modem.

Slide the modem out of the computer, being careful to avoid catching the black plastic shielding on the surrounding cables.

Remove the single Phillips screw to the right of the hard drive connector.

At the front edge of the hard drive, lift up on the transparent orange tape to disconnect the ribbon cable from the main board.

Peel back the black tape to free the microphone cable from the hard drive.

Lift the hard drive out of the computer and turn the hard drive over. Use the transparent orange loop to disconnect the hard drive ribbon cable from the hard drive.

Remove the single Phillips from the white plastic finger of the IO Bezel.

Slide the IO Bezel away from the computer and off.

Disconnect the microphone cable from the front, left corner of the logic board.

Peel back the black tape and free the microphone cable from the hard drive.

Use the black plastic handle to disconnect the display data cable from the logic board.

Remove the two Phillips screws securing the display data cable to the metal framework.

Deroute the display data and microphone cables, removing tape as necessary.

Peel back the yellow tape securing the inverter cable to the metal framework.

Disconnect the inverter cable from the logic board.

Carefully deroute the inverter cable from beneath the optical drive.

Deroute the AirPort antenna cable from beneath the optical drive.

Remove the single Phillips screw on the outer edge of either hinge (two screws total).

Tilt the display back to get over two small nubbins, and then slide it directly from the case and away.

Remove the following 9 screws:

Two 3 mm Phillips from the edge of the logic board, near the battery

Two 4 mm large head Phillips on the port side, from either corner.

One 6 mm Phillips near the sleep light.

Two 7.5 mm Phillips securing the battery connector to the metal framework.

Two 5 mm Phillips from the logic board. These screws may not be present on some models.

Disconnect the sleep light from the logic board.

Disconnect the DC cable from the logic board.

Remove the three Phillips securing the heat sink to the metal framework.

Remove the rear plastic grill.

Lift the heat sink out of the computer.

Remove the single Phillips screw that secures the logic board to the metal framework and remove the metal shielding.

Peel back the foil tape securing the logic board to the RJ-11 jack.

Disconnect the reset button from the logic board. (this part is not present on later models)

Lift the metal framework up and off the logic board.