iBook G4 14" 1.42 GHz Top Shield 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 (shown in yellow) 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 (shown in orange) 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.

Loosen the four silver Phillips screws that secure the RAM shield.

Remove the RAM shield from the computer.

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

Close the display and flip the computer over.

Remove the three hex screws using a T8 Torx screwdriver.

Use a spudger or small flathead screwdriver 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 two Phillips screws on either side of the battery contacts.

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

There is a slot on the wall of the battery compartment that locks the lower case in place. 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. There are two tabs on the port side of the computer, one near the front corner and one near the sound-out port.

There are three tabs over the optical drive that must be released before the lower case can come off. Slide the spudger into the lower case above the optical drive and run it toward the back of the computer until you hear three distinct clicks.

Turn the computer so that the back is facing you and 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 10 screws from the bottom shield:

• Six 3 mm Phillips
• Three 7.5 mm Phillips
• One 14 mm Phillips

Lift the bottom shield off.

Remove the single Phillips screw securing the DC-In board.

Angle the DC-In board out of its compartment.

Lift the DC-In cable from the adhesive attaching it to the logic board.

Disconnect the DC-In cable from the logic board.

Remove the following 11 screws from the bottom of the computer:

• Three 3 mm Phillips around the battery compartment.
• Three 4.5 mm Phillips along the optical drive bezel. (a magnetic screwdriver may help to lift these screws out)
• One 12 mm Phillips in the lower right corner.
• Four 14.5 mm Phillips.

Turn over the computer and open it.

Remove the 3 Phillips screws from the edges of the keyboard area.

Lift the upper case and use a spudger or your finger to disconnect the trackpad connector hidden beneath the white plastic tab.

Lift the upper case enough to disconnect the blue and white power cable from the logic board. Using your fingernails, carefully pry the connector from its socket.

Carefully disconnect the multicolored speaker cable from the logic board in the same fashion.

Remove the following 16 screws:

• Thirteen 3 mm Phillips.
• One 3 mm Phillips.
• Two 4 mm Phillips.

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