Apple PowerBook G4 03-07 Service Manual



Service Source

PowerBook G4

Updated 8 July 2003



Service Source

Take Apart

PowerBook G4



PowerBook G4

Keyboard

Replacement Instructions

Be sure to follow the instructions in this sheet carefully. Failure to follow these instructions could result in damage to your equipment and may void your warranty.

Note:

Written and video instructions covering customer-installable parts are available at

http://www.info.apple.com/installparts/.

Warning: Sharp edges can exist inside your computer and on any parts being removed or installed. Use caution to avoid injury.

Tools Required

The only tool required for this procedure is a jeweler’s ﬂat-blade screwdriver.

Removing the Keyboard

1. Place your computer on a clean, ﬂat surface.

2. Shut down your computer. Disconnect the power cord and any other cables connected to the computer.

Warning: Always turn off your computer before opening its case to avoid damaging its internal components.

3. Close the computer and turn it over. Slide the battery compartment latch to the right to remove the battery

Removing the battery will prevent you from accidentally turning on the computer.

Warning: The internal components of your PowerBook may be hot. If you have been using your PowerBook, wait 30 minutes after shutting down your computer to let the internal components cool down before continuing.

4. Turn over the computer and raise the display so you can access the keyboard.

(Figure 1B)

.

(Figure 1A)

5. Make sure that the keyboard locking screw is not in the locked position Your new PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.

(Figure 2)

.

6. Release the keyboard by pulling down on the keyboard release tabs located to the left of the F1 and F9 keys toward the display to release the tabs that hold the bottom of the keyboard in place.

(Figure 3)

, then lift the top portion of the keyboard up and

7. Flip over the keyboard and lay it on the palm rests and trackpad

8. Touch the computer’s inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown

Important:

touching the computer’s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer.

9. Disconnect the keyboard connector cable from the logic board location of the logic board connection. Remove the keyboard.

To avoid electrostatic discharge damage, always ground yourself by

(Figure 5)

.

(Figure 4)

(Figure 6)

.

, and note

Installing the Replacement Keyboard

1. Lay the replacement keyboard in the correct orientation over the opening, then ﬂip it forward and lay it face down on the palm rests and trackpad to expose its connector cable

(Figure 7)

2. Connect the keyboard connector cable to the logic board.

3. Flip the keyboard back on top of the opening and insert the tabs at the bottom of the keyboard into the openings in the case

.

(Figure 8)

.

4. Pull down on the keyboard release tabs located to the left of the F1 and F9 keys

(Figure 3)

5. Release the tabs to secure the keyboard in place.

6. Turn over the PowerBook and replace the battery

7. Reconnect the power cord and any other cables that were connected and restart your computer.

Warning: Never turn on your computer unless all of its internal, external, and case parts are securely installed. Operating the computer when its case is open or missing parts can damage your computer or cause injury.

and then press down on the top of the keyboard.

(Figure 9)

.

PowerBook G4 Keyboard -

2

Figure 1

Figure 2

A

B

Figure 3

PowerBook G4 Keyboard -

3

Figure 4

Figure 5

PowerBook G4 Keyboard -

4

Figure 6

Figure 7

PowerBook G4 Keyboard -

5

Figure 8

Figure 9

PowerBook G4 Keyboard -

6



PowerBook G4

Memory

Replacement Instructions

Be sure to follow the instructions in this sheet carefully. Failure to follow these instructions could result in damage to your equipment and may void your warranty.

If you are adding memory rather than replacing it, skip the section “Removing Memory Cards.”

Note:

Written and video instructions covering customer-installable parts are available at

http://www.info.apple.com/installparts/.

Warning: Sharp edges can exist inside your computer and on any parts being removed or installed. Use caution to avoid injury.

Tools Required

The only tool required for this procedure is a jeweler’s ﬂat-blade screwdriver.

Memory (RAM)

Your computer comes with two memory slots, one above the other. From the factory, your PowerBook comes with one memory card installed in the lower slot.

Note:

If desired, you can install additional memory in the upper memory slot or replace a memory card in either slot with one of greater memory capacity, up to a maximum of a 512

megabyte (MB) memory

Warning: Memory cards come in various speciﬁcations. Only install memory cards that are approved for your PowerBook.

card installed in each slot.

Opening the Computer

1. Place your computer on a clean, ﬂat surface.

2. Shut down your computer. Disconnect the power cord and any other cables connected

to the computer.

Warning: Always turn off your computer before opening its case to avoid damaging its internal components.

3. Close the computer and turn it over. Slide the battery compartment latch

to the right to remove the battery

Removing the battery will prevent you from accidentally turning on the computer.

Warning: The internal components of your PowerBook may be hot. If you have been using your PowerBook, wait 30 minutes after shutting down your computer to let the internal components cool down before continuing.

4. Turn over the computer and raise the display so you can access the keyboard.

5. Make sure that the keyboard locking screw is not in the locked position

Your new PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.

6. Release the keyboard by pulling down on the keyboard release tabs located to the left

of the F1 and F9 keys toward the display to release the tabs that hold the bottom of the keyboard in place.

7. Flip over the keyboard and lay it on the palm rests and trackpad

(Figure 3)

(Figure 1B)

, then lift the top portion of the keyboard up and

.

(Figure 4)

(Figure 1A)

(Figure 2)

.

Perform Electrostatic Discharge

1. Touch the computer’s inside framework (a dull gray conductive composite material) to

discharge any static electricity, as shown

(Figure 5)

.

Important:

touching the computer’s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer.

To avoid electrostatic discharge damage, always ground yourself by

PowerBook G4 Memory -

2

Removing Memory Cards

Warning: When removing or installing a memory card, do not touch its gold connectors. Handle the card only by the edges.

1. To remove a memory card, locate the brackets that secure the card on both sides.

Carefully spread the brackets apart until the card releases on each side The card can then be pulled up and out.

Note:

If there is a memory card in the upper memory slot

removed before removing a card in the lower slot

(Figure 6A)

(Figure 6B)

.

(Figure 6)

, it must be

Installing Memory Cards

Warning: When removing or installing a memory card, do not touch its gold connectors. Handle the card only by the edges.

.

1. To install a memory card, hold the card at a 30-degree angle

notch in the card with the small tab in the memory slot. Then push the card into the slot

(Figure 7)

Note:

You may feel some resistance. If you are having trouble inserting the card, try

pushing one side at a time.

2. Gently push the card down until the brackets snap onto both sides of the memory card

to lock it into place

.

(Figure 8)

.

(Figure 7A)

. Line up the

Closing the Computer

1. Verify that the keyboard connector cable is securely attached to the logic board

(Figure 9)

2. Flip the keyboard back on top of the opening and insert the tabs at the bottom of the

keyboard into the openings in the case

3. Pull down on the keyboard release tabs located to the left of the F1 and F9 keys

(Figure 3)

4. Release the tabs to secure the keyboard in place.

5. Turn over the PowerBook and replace the battery

.

(Figure 10)

and then press down on the top of the keyboard.

.

(Figure 11)

.

6. Reconnect the power cord and any other cables that were connected and restart your

computer.

Warning: Never turn on your computer unless all of its internal, external, and case parts are securely installed. Operating the computer when its case is open or missing parts can damage your computer or cause injury.

PowerBook G4 Memory -

3