PowerBook G3 Pismo Logic Board Replacement

Turn the keyboard locking screw so that it is parallel to the space bar.

Pull the keyboard release tabs toward you and lift up on the keyboard until it pops free.

Lift the keyboard out by pulling it up and away from you. Rest the keyboard, face down, on top of the track pad.

Pull the keyboard ribbon straight up from the logic board. Place the keyboard aside.

Your laptop should look approximately like this.

Remove the two silver Phillips #1 screws that attach the heat shield to the internal metal framework.

Lift the heat shield up and pull it toward you.

Your laptop should look approximately like this.

Firmly grasp the plastic tab attached to the Airport card and pull up and then to the right.

Disconnect the antenna cable from the Airport card.

Pull the battery cable directly up from the logic board.

Remove the battery from its holder by pulling up and to the left.

Your laptop should look approximately like this.

Remove the long silver Phillips #1 screw from the heat sink.

Remove the two T8 Torx screws that attach the heat sink to the processor.

Lift the heat sink up from the left side and pull it out.

Grasp the plastic tab on the processor's right side and pull it directly up.

Your laptop should look approximately like this.

Remove the black Torx screw from the right side of the modem.

Remove the small black plastic rectangle with four holes.

Use the tips of your fingers, a spudger, or a flat non-metal tool to get under the modem's edge and pry it up from its socket.

Disconnect the cable from the right side of the modem.

Grasp the orange cable at the left end of the hard drive and disconnect it from the logic board.

Grasp the plastic tab and pull the hard drive up and to the left, making sure that the metal bracket doesn't catch on the black plastic casing.

Your laptop should look approximately like this.

Push the display back so that it lies flat.

Slip your index finger or a nylon tool under the clutch cover near the power button and pull gently upward until you feel it come free.

Repeat the previous step on the left side.

Lift the clutch cover up and off, rotating it toward yourself.

Grasp the orange display data cable and disconnect it from the logic board.

Remove the single black Torx screw that fastens the display cable to the plastic casing.

Grasp the thin display inverter board at its left end; lift up and rotate toward yourself.

Disconnect the white inverter cable from the right end of the board

Disconnect the inverter plug, pulling directly up from the logic board.

Turn the laptop around so that its back faces you.

Open the port door located at the back of the laptop.

Remove the four black Torx screws.

Returning to the front, pull the black Airport antenna up from its recessed housing.

Your laptop should look approximately like this.

Disconnect the wide orange cable that connects the airport card slot to the logic board.

Remove the three long silver and one short black Torx screws from the beige plastic casing.

Slide the thin plastic shield away from you, out from under the black casing.

Disconnect the newly revealed thin orange ribbon from the logic board.

Remove the two long silver Torx screws.

Turn the laptop over.

Remove the five short Torx screws from the bottom casing.

Remove the two long Torx screws in the front left and front right corners; make sure to put these back in the proper place when reassembling.

Turn the laptop back over.

Remove three short black Torx screws from the metal frame.

Remove the small Torx screw to the far left that fastens the logic board to the casing.

Grasp the upper plastic casing where it locks into the internal frame and pull back. When the plastic tab has cleared the slot that the casing locks into, pull up enough to keep it from locking back into place.

The PC card eject button on the laptop's left side prevents the upper casing from lifting up. In order to bypass the button, push it in far enough so that you can pull the upper casing's left side out and up beyond the button.

Lift the left side of the case partly up so that you can access and disconnect the audio in/out cables from the sound card in the upper right of the case.

Remove the upper casing. Note that there are two tabs on the laptop's front that often cause the upper case to stick.

Your laptop should look approximately like this.

Remove the two long silver Torx screws from the power card in the center of the laptop

Grasp the power card near the black shield and lift up.

Gently clasp the left side of the metal shield between your thumb and forefinger and carefully pull up and toward the front of the laptop.

Remove the single short black Torx screw anchoring the metal framework to the lower casing.

Use needle-nose pliers or a five millimeter nut driver to remove the small metal nut from the bolt.

Turn the laptop so that its back is facing you.

Lift up on the left side of the metal framework and remove the single black Torx screw.

Grasp the EMI Filter by its black end and rotate it toward the front of the laptop. Pull the filter up and beyond the screw bracket.

Remove the metal framework.

Your laptop should look approximately like this.

Lift the sound card out by pulling up on both the right and left sides.

Turn the laptop around so that the front faces you.

Move the metal yoke to the left.

Gently lift the front edge of the logic board and pull it toward you.