PowerBook G4 Aluminum 17" 1.67 GHz (High-Res) Lower Case Replacement

Use your thumbs to push the two battery retaining tabs away from the battery.

The battery should pop up enough to rotate it toward yourself and lift it out of the lower case.

Remove the three 2.3 mm Phillips screws securing the memory cover to the lower case.

Lift the memory cover slightly and pull it toward yourself to remove it from the lower case.

Remove the following ten screws:

Two 14.7 mm shouldered Phillips.

Three 12.3 mm Phillips.

One 3.8 mm T8 Torx.

One 6.8 mm T8 Torx.

Three 1.3 mm Phillips.

Use your fingernails to separate the ZIF cable lock away from its socket. (Move the two brown bits down 1mm)

Use the tip of a spudger to slide the trackpad ribbon cable out of its socket.

Remove the four 3.4 mm Phillips screws from the PC card side of the PowerBook.

Remove the four 3.4 mm Phillips screws from the DVI connector side of the PowerBook.

Depress the display latch release button and open your display.

Starting near the display, lift the upper case straight up off the lower case, minding any cables that may get caught.

Disconnect the RJ-11 cable from the modem.

If necessary, remove the strip of tape covering the speaker cables.

Use your fingernails or the tip of a spudger to separate the ZIF cable lock from its socket.

Pull the DC-in ribbon cable straight away from its socket.

Peel the DC-in cable off the adhesive securing it to the lower case.

If necessary, use the tip of a spudger to remove the small piece of foam tape from the side of the left speaker.

De-route the AirPort antenna cables from the channel in the left speaker.

Remove the single 6.9 mm T8 Torx screw securing the left speaker to the lower case.

Lift the left speaker from its rear edge and maneuver it out of the lower case, minding the cables sitting in the channel near the front edge of the left speaker.

Remove the single 6.9 mm T8 Torx screw securing the speaker cable ground loop to the lower case.

Peel back the piece of foil tape covering the modem cable to free the speaker cable held underneath.

Pull the speaker cable straight up to disconnect it from the sound card.

Use the flat end of a spudger to pry the hard drive ribbon cable connector up off the logic board.

Use the flat end of a spudger to pry the sound card cable connector up off the logic board.

Use the flat end of a spudger to pry the optical drive cable connector up off the logic board.

Use your fingernails or the tip of a spudger to separate the ZIF cable lock from its socket.

Pull the PRAM battery & USB board cable out of its socket.

Use a spudger to de-route the display data cable from the channel in the right speaker.

Use the tip of a spudger to pry the power button LED window off the right speaker.

Remove the single T8 6.9 mm Torx screw securing the right speaker to the lower case.

Lift the right speaker out of the lower case.

De-route the speaker cable from the clips along the front edge of the logic board.

Close your PowerBook, minding any cables that may interfere, and flip it over.

Disconnect the power cable connector by pulling it straight away from its socket on the logic board.

Disconnect the battery cable connector straight away from its socket on the logic board.

Use the flat end of a spudger to pry the AirPort/Bluetooth cable connector up off the logic board.

Use the flat end of a spudger to pry the modem cable connector up off the logic board.

Use the flat end of a spudger to pry the PC card cage cable connector up off the logic board.

Disconnect both of the following connectors from the logic board:

Left fan cable.

Inverter cable.

Remove the following four screws securing the optical drive to the lower case:

Three 6.8 mm T8 Torx.

One 3.8 mm T8 Torx.

Lift the optical drive out of the lower case, minding any cables that may get caught.

If necessary, remove the piece of tape securing the display data cable to the logic board.

Pull the display data cable away from its socket to disconnect it from the logic board.

Disconnect the right fan by pulling its connector away from the socket on the logic board.

Remove the following 12 screws:

Three black 5.7 mm T8 Torx.

Three 7 mm T8 Torx with spring washers.

Three 6.8 mm T8 Torx.

Three 3.8 mm T8 Torx.

If necessary, use a spudger to pry up the left edge of the logic board to separate the solidified thermal paste from the heat sink.

Lift the logic board from its left edge and rotate it toward the right side of the lower case.

Rotate the logic board until it is nearly vertical, and wiggle it around until it releases from the lower case.

Use the flat end of a spudger to pry the modem cable connector up off the modem.

Use a 4 mm nut driver to remove the two nuts securing the modem to the PC card cage.

Lift the modem straight up off the studs on the PC card cage.

Use the tip of a spudger to peel back the small strip of copper tape off the edge of the PC card cage near the side of the lower case.

Remove the four Phillips screws securing the PC card cage to the lower case.

Lift the PC card cage by its center piece and maneuver it out of the lower case.

Use the tip of a spudger to press the metal pressure connector down through the hole in the AirPort/Bluetooth board and lift it out from the lower case.

Use the flat end of a spudger to pry the AirPort/Bluetooth board off the adhesive securing it to the lower case.

If necessary, remove the piece of tape and EMI foam covering the AirPort/Bluetooth antennas.

Use the flat end of a spudger to pry both antenna connectors off the AirPort/Bluetooth board.

Remove four T6 Torx screws from the left display hinge.

Remove four T6 Torx screws from the right display hinge.

While supporting the display with one hand, remove the last two T6 Torx screws from the display hinges.

Lift the display straight up from the lower case, minding any cables that may get caught.

Remove the two T8 Torx screws securing the DC-in board to the lower case.

Pull the DC-in board away from the left side of the lower case and set it aside.

Remove seven Torx T8 screws from the heat sink and fan assembly.

Lift the heat sink and fan assembly out of the lower case.

Lift the heat sink and fan assembly out of the lower case.

Remove the following four screws:

Three 11.1 mm T8 Torx.

One 3.9 mm T8 Torx.

Lift the hard drive out of the lower case.

Remove the two T8 Torx screws securing the sound card to the lower case.

Use the flat end of a spudger to pry the USB sockets away from the left edge of the lower case.

Lift the sound card slightly out of the lower case, minding the fragile lower portion holding the microphone connector.

Pull the sound card ribbon cable straight away from its socket on the sound card.

Use your fingernails to pull the microphone connector straight away from its socket on the sound card.

Remove the two T8 Torx screws securing the PRAM battery & USB board to the lower case.

Pull the board away from the side of the lower case to separate the USB socket from the bezel on the lower case.

Lift the PRAM battery & USB board out of the lower case.

Remove the two 8.5 mm T8 Torx screws securing the battery connector to the lower case.

Pull the battery connector out of its opening in the lower case.

Lower case remains.