PowerBook 3400 M3553 Display Replacement

Close the screen and turn the PowerBook over, orienting the computer upside down, using the label to guide you.

Hold the button on the front left side and slide the battery out.

With a Torx T8 screwdriver, remove the three Torx 24mm screws along the center of the back panel.

Turn the computer over and open the display. You should see that the keyboard is loose.

Slightly lift the front of the keyboard up, and slide the keyboard towards yourself.

Carefully lift the top half of the keyboard and pull it towards yourself.

Loosen the ribbon cables connecting the keyboard to the computer by using a plastic opening tool to lift the tabs on either side of the cable port.

Gently remove the ribbons from its tabs.

Gently wiggle the RAM card to loosen the connection until it pulls free.

Disconnect the wires from the port.

Remove the 7mm screw connecting the speaker panel to the computer.

To detach the speaker panel's ribbon cable, use a plastic opening tool to lift the tabs on both sides of the cable port.

Once loose, pull the ribbon cable free.

Lift the lighting/audio panel from it's bottom corners and pull the panel towards yourself.

Remove the panels on either side by gently but firmly pulling up on them with both hands.

Gently pull up on the ribbon cable connection that connects the screen to the logic board.

Remove the two T8 13 mm long torx screws on either side of the display, located under the side panels.

Gently pull the display free of the computer.