Apple PowerBook G4 (Gigabit Ethernet 550 667 MHz) 02-06 Service Manual
Take Apart
PowerBook G4 (Gigabit Ethernet)- 550, 667 MHz
AppleCare
Updated : 04-06-2002
K
Service Source
Troubleshooting
PowerBook G4 (Gigabit Ethernet)
© 2001 Apple Computer, Inc. All rights reserved.
Troubleshooting Symptom Charts/How to Use the Symptom Charts - 1
Symptom Charts
How to Use the Symptom Charts
The Symptom Charts included in this chapter will help you
diagnose specific symptoms related to the product.
The steps to solve a symptom are listed sequentially. You might not
need to perform every step before the symptom is solved. Start
with the first step, and then test for the symptom. If the symptom
persists, replace any modules you removed, go to the next step,
and test again. Continue down the list until the symptom is solved.
AirPort Card
AirPort Card not
recognized
1 Use Software Update control panel or see the Apple Software
Updates web page to make sure the latest version of AirPort
software is installed.
2 Boot using Mac OS All extensions setting.
3 Reseat AirPort Card.
4 Remove and reinstall the AirPort software.
5 Replace with known-good AirPort Card.
6 Replace logic board.
Battery
Battery will not eject 1 Flip over the unit and release the battery latch by sliding the
latch towards the PC Card button.
2 If the battery still will not eject, while holding the latch
towards the PC Card button, use a small plastic flat-blade
tool to pry the battery around the battery latch.
3 Verify proper latch operation, by exercising the latch. If it
does not move smoothly or evenly, replace rib chassis
assembly.
4 If the latch does exercise correctly, verify that the customer
is not installing the battery with excessive force.
DVD disc icon does not
show up on desktop,
or a dialog box
appears to initialize
disc
DVD-ROM Drive
1 Use Software Update control panel to update firmware.
2 Try cleaning the disc. If it is dirty or scratched, it may not
mount.
3 Try a different disc.
Troubleshooting Symptom Charts/Error Beeps - 2
4 Select “Mac OS All” in the Extensions Manager control panel
and restart.
5 Replace optical drive cable.
6 Replace optical drive.
Error Beeps
The computer automatically performs a power-on self test when
it is turned on after being fully shut down (not a restart). This
section describes what to do if beeps are heard during the startup.
Note:
The PowerBook G4 has two memory expansion slots and
accepts 1.5-inch (or shorter) PC-100 compliant, SO-DIMM
memory cards; there is no RAM on the logic board itself. Refer to
Customer-Installable-Parts Memory Replacement instructions
for removal and installation.
Computer beeps once
at startup
Computer beeps twice
at startup
Computer beeps three
times at startup
1 One beep means that no RAM is detected.
Note:
There is no RAM on the logic board itself, so the
computer will beep if no memory is installed in at least one of
the RAM slots.
2 Put the original RAM that came with the computer back in, or
put in known-good and compatible RAM and restart.
• If symptom does NOT repeat, replace RAM card/s.
• If symptom repeats, replace logic board.
1 Two beeps means that EDO memory is installed in the RAM
expansion slot. The PowerBook does not accept EDO memory.
2 Replace RAM card/s with known-good and compatible RAM
and restart.
• If symptom repeats, replace logic board.
1 Three beeps means that no RAM banks passed memory testing.
2 If a RAM card is installed in the upper expansion slot (if not,
skip to next step), remove it and restart.
• If symptom does NOT repeat, replace RAM card.
• If symptom repeats, replace RAM in lower RAM slot with
known-good and compatible RAM card and restart. If
symptom repeats, replace logic board.
3 If a RAM card is NOT installed in the upper expansion slot,
replace RAM in lower RAM slot with known-good and
compatible RAM card and restart.
• If symptom repeats, replace logic board.
Troubleshooting Symptom Charts/Hard Drive - 3
Computer beeps four
times at startup
Hard drive will not
initialize
1 Four beeps indicates a bad checksum for the remainder of the
boot ROM. The ROM (which is located on the logic board) is
bad.
2 Replace RAM card/s with known-good and compatible RAM
and restart.
• If symptom repeats, replace logic board.
Related articles:
58442: Power On Self-Test Beep Definition - Part 2
95132: PowerBook G4: Installing or Replacing Memory
Hard Drive
1 Boot from PowerBook G4 Software Install CD and see if the
hard drive mounts on the desktop.
2 Launch Drive Setup and update hard drive driver.
3 If no hard drive is found in Drive Setup, verify the hard
drive cable connections.
4 Replace hard drive cable.
5 Replace hard drive.
Important:
recovery is required, refer to Article 31077: Hard Drive Data
Recovery & Warranty Implications, for important
information.
If the computer is under warranty and data
The internal hard
drive does not spin
1 Disconnect any connected peripherals.
2 Try known-good power outlet.
3 Try known-good power adapter and power cord.
4 Boot from a Mac OS system CD.
5 Verify Drive Setup does not recognize the hard drive.
6 Verify cable connections.
Modem
No modem dial tone 1 Verify known-good analog (not digital) telephone line.
2 Verify known-good RJ11 telephone cable.
3 Verify RJ11 cable is not plugged into Ethernet port.
4 Inspect RJ11 connector and modem port for pin damage.
5 Verify RJ11 telephone cable is firmly installed in the modem
port.
6 If using Apple Remote Access, select Ignore Dial Tone in the
Modem control panel. If the modem connects with this settings
selected, try another phone line. If using a terminal or
communications program, enter atx1 to disable tone
detection. To reset the modem back to the factory settings,
enter atz.
Troubleshooting Symptom Charts/PC Card - 4
7 Verify RJ11 modem cable is plugged into modem correctly.
8 Replace modem.
PC Card
PC Card will not
insert into the PC
Card slot
1 Make sure the PC Card eject button is in, before attempting to
insert a PC Card.
2 Make sure the PC Card is right side up (cards are keyed and
cannot be inserted upside down).
3 Verify the PC Card is not warped or damaged in any way; if so
replace the card.
4 Try a different PC Card.
5 Carefully raise the PC Card slot cover and check for a foreign
object inside the slot.
6 Check to see if the AirPort Card antenna wire is protruding
up into the PC Card slot opening from below. If so, open the
computer to gain access to the AirPort Card location and
reposition the antenna cable so that it does not sag down into
the PC Card slot area (see AirPort Card Installation
Instructions).
7 If the slot cover is preventing the card from being inserted,
replace the top case.
8 Replace Card Cage, PCMCIA assembly.
Troubleshooting Symptom Charts/Sound - 5
Sound
No sound heard and the
Speakers section of
the Sound control
panel indicates that an
external device is
plugged in (to the
headphone jack or
USB ports)
1 If there is nothing plugged into the headphone jack or USB
ports, the picture in the Speakers section of the Sound
control panel should be of the internal speakers, as shown
here.
2 If not, and if nothing is plugged in, try plugging in headphones
or external speakers. Restart the computer. Remove the
device.
3 Reset PRAM (Press the power button, then hold down the
Option-Command-P-R keys until you hear the startup chime
at least one additional time after the initial startup chime).
4 Warning: Resetting the PRAM will permanently remove a
RAM disk, if present, and all of its contents. You will also
need to reset the date and time (using the Date & Time control
panel).
5 Replace logic board.
No display, or dim
display, but computer
appears to operate
correctly
Video
1 Remove any connected peripherals.
2 Try known-good power outlet, power adapter and power cord.
3 Press the F2 key (with the fn key pressed and not pressed) to
increase the screen brightness settings.
4 Reboot the computer—hold down the Control and Command
keys and press the Power button to restart the computer. Or,
press and hold the Power button for 5 to 10 seconds to shut
down the computer, then press the Power button to restart.
5 Verify inverter cable and LVDS cable connections are seated
properly and that the cables are not damaged (refer display
assembly replacement instructions).
6 Replace inverter board.
7 Replace display assembly.
8 Replace logic board.
Troubleshooting Symptom Charts/Misc. Symptoms - 6
Computer appears to
work, but no video on
external device
connected to the TV out
port (S-video out
port)
No video on an
external device
connected to the
External monitor port
1 The device must be connected to the S-video port while the
PowerBook is sleeping or off for the device to be recognized.
2 If running Mac OS X, verify that this issue is also in Mac OS
9.
3 Verify monitor that is used in testing is known-good and is
supported by this computer.
4 Try different cable(s).
5 Replace logic board.
1 In the Resolution control strip, see if the device is being
recognized. If so select resolution.
2 If running Mac OS X, verify that this issue is also in Mac OS
9.
3 Verify monitor that is used in testing is known-good and is
supported by this computer.
4 Try another VGA monitor cable.
5 Restart the computer and text again.
6 Replace logic board.
Misc. Symptoms
Latch not working
The Date and Time
settings reset all the
time
Note:
When the display is being closed, a hook in the top of the
display housing should be magnetically pulled down to the latch.
When the latch button is pushed, the hook should release and
retract into the display housing.
1 Verify hook operation by exercising the latch mechanism.
2 If the hook does not operate properly, replace the display
assembly.
3 If the latch or latch button does not operate properly, replace
the top case assembly.
Note:
Resetting the power manager or PRAM resets the date and
time.
1 Verify that the reset button is not stuck.
2 Do a backup battery test:
• Set the date and time.
• Perform a Shut Down from the Apple menu or Special
menu.
• Remove the main battery and disconnect the power adapter
for 10 minutes.
• Connect the power adapter, insert the battery, and power
on the computer.
• If the date and time were lost the backup battery may be
dead or discharged.
Troubleshooting Symptom Charts/Misc. Symptoms - 7
• Remove the main battery from the unit and leave the
PowerBook plugged in for at least 5 hours.
Note:
If a discharged main battery is installed in the
computer, recharging the backup battery may take up to 48
hours to completely charge. It is okay to use it while it is
charging.
• If the date and time still reset, replace the backup battery.
3 If not the backup battery, replace PMU Card.
Note:
For main and backup battery part numbers, refer to article
11751: Macintosh Family: Batteries and Part Numbers.
AirPort Card installed
and received a -3278
error
The microphone is not
working
1 Use Software Update control panel or see the Apple Software
Updates web page to make sure the latest version of AirPort
software is installed.
2 Boot using Mac OS All extensions setting.
3 Reseat AirPort Card.
4 Remove and reinstall the AirPort software.
5 Replace with known-good AirPort Card.
6 Replace logic board.
1 Check the Sound control panel and verify that the selection
for input is the built-in microphone.
2 Check the signal level and level meter and adjust the gain.
3 Remove Sound Preferences from the Preferences folder and
restart.
4 Reset PRAM (Press the power button, then hold down the
Option-Command-P-R keys until you hear the startup chime
at least one additional time after the initial startup chime).
5 If no sound as well as microphone is not working, verify
cable connections.
6 Replace top case.
During startup boot
sequence and before
reaching Finder, the
following dialog box
appears: “The builtin memory test has
detected an error”
1 If a RAM card is installed in the upper expansion slot (if not,
skip to next step), remove it and restart. Refer to Customer-
Installable-Parts Memory Replacement instructions.
• If symptom does NOT repeat, replace RAM card.
• If symptom repeats, replace RAM in lower RAM slot with
known-good SDRAM SO-DIMM RAM card and restart.
- If symptom repeats, replace logic board.
2 If a RAM card is NOT installed in the upper expansion slot,
replace RAM in lower RAM slot with known-good SDRAM SODIMM RAM card and restart. Refer to Customer-InstallableParts Memory Replacement instructions.
• If symptom repeats, replace logic board.
LCD anomalies Go to : Pixel anomalies
A certain number of pixel anomalies are inherent in liquid crystal display technology and vary by many factors, including type of
technology.
Many anomalies observed by customers are considered normal or are the result of lint or dust particles resting on the front of the
display. It is important to understand what type of anomaly a customer sees in order to determine whether further analysis is
necessary. In many cases all that may be necessary is a gentle cleaning of the display face using the provided cleaning cloth.
IMPORTANT : Providing a replacement display to satisfy a customer may not be effective because the
replacement display may have more or different types of visible anomalies than the original display,
and still be within specifications.
Knowledge Base Article 22194 can be indicated to customers as public explanation from Apple side.
Industry standards used by all manufacturers are specifying a certain number of minor defects, as generally accepted or
creating an acceptable situation. This means that the level of quality in the industry includes some level of pixel-defect.
The following sentences can be used with customers’ complains
Copied from SONY documentation (Sony VAIO web Support)
• High precision technology is used to manufacture these LCDs to maintain a high standard of operation. However in all LCD
panels there may be a small number of pixels that do not change color. This is a normal occurrence for all LCD displays from all
manufacturers and should not be noticeable or objectionable under normal operation.
• Sometimes the pixels are noticeable only during booting or on an all white or all black screen.
• The LCD screen is manufactured using high precision technology. However, there may be some tiny black spots and/or bright
spots (red, blue or green in colour) that constantly appear on the LCD screen. These spots occur normally in the manufacturing
process and do not effect the recorded picture in any way. Effective number of pixels is 99.99% or more.
Copied from COMPAQ documentation (Compaq FAQ on Compaq’s web Support)
• Note that if you have the smallest number of dead pixels, your replacement display panel may have more, use your judgement
before deciding that you have a defective panel.
Copied from DELL documentation (Dell web : http://support.euro.dell.com/fr/fr/kb/document.asp?DN=FA1018431)
• The liquid crystal display (LCD) screens built into portable computers and flat-panel monitors are manufactured using rigid
quality control standards. These manufacturing standards ensure that the LCD screen is clear and viewable.
• During the manufacturing process, it is not uncommon for one or more pixels to be fixed in an unchanging state. The visible
result is a fixed pixel that appears as an extremely tiny discolored spot, either a dark spot or a bright spot.
Copied from TOSHIBA documentation (Toshiba web Support)
• Due to current manufacturing methods and the high number of transistors in the TFT Color LCD, a few nonconforming pixels
may be visible. There are over a million transistors in a typical TFT screen. When any one of those transistors is not lighting as
designed, the pixel is called nonconforming. Nonconforming pixels typically appear as tiny colored dots (red, blue, green, etc.)
or as black dots in contrast to the projected background color of the LCD module.
• Quality inspections, performed by the LCD module manufacturers, include limits for nonconforming pixels. Nonconforming pixel
limits (10 to 18 pixels) are set solely by the LCD module manufacturers and not by specific computer manufacturers. These
limits are defined by the manufacturing processes and are specific to screen characteristics which include :
* physical size of module.
* display type (SVGA, XGA, VGA).
* screen resolutions available.
• LCD Module manufacturers continually strive to upgrade processes used in manufacturing as well as the Quality Specifications
which include the limits on nonconforming pixels allowed for LCD modules for use in portable computer displays.
(End
Pixel anomalies
When speaking with Apple Technical Support, it may be necessary to use a pocket microscope, jeweler's loupe, or other
magnifying device to properly identify and count each subpixel anomaly.
Displaying all white, red, green, and blue screens makes locating and viewing pixel anomalies easier.
A subpixel that is always on should be referred to as a bright subpixel anomaly. A subpixel that is always off should be referred
to as a dark subpixel anomaly.
When necessary, portable and display products may be dispatched for evaluation by the Apple Repair Center.
Go to : LCD anomalies
(End
Replacement Instructions
Follow the instructions in this sheet carefully. Failure to follow these instr uctions could damage your equipment and void its
warranty.
Note : Written and video instructions covering customer-installable parts are available at http://www.info.apple.com/installparts/.
War ning : During this procedure, keep small parts away from children.
Tools Required
The only tool required for this procedure is a jeweler’s flat-blade screwdriver (if keyboard is locked).
Removing the Installed Keyboard
War ning : Always shut down your computer before opening it to avoid damaging its internal components or
causing injury. After you shut down the computer, the internal components can be ver y hot. L et the computer
cool down before continuing.
1. Place your computer on a clean, flat surface.
2. Shut down your computer and wait thirty minutes before continuing.
3. Disconnect the power cord and any other cables connected to the computer.
4. Close the computer and turn it over.
5. Slide the battery latch (Figure 1A) to the right to remove the batter y (Figure 1B).
Removing the battery will prevent you from accidentally tur ning on the computer.
War ning : Removing the battery before shutting down your computer may result in data loss.
6. Turn over the computer.
7. Raise the display so you can access the keyboard.
8. Make sure the keyboard locking screw, located in the small plastic tab to the left of the Num L ock key (Figure 2), is not in
the locked position. Your PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.
1B073-0635 Rev. A PowerBook G4 (Gigabit Ethernet) - Keyboard
English
English
Keyboard
AppleCare
Figure 1
A
B
To unlock the keyboard, turn the screw 1/2 turn.
9. Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys) (Figure 3),
then lift the top portion of the keyboard up slightly, and toward the display.
10. Flip the keyboard over and lay it on the palm rests and trackpad (Figure 4).
2 B073-0635 Rev. APowerBook G4 (Gigabit Ethernet) - Keyboard
Figure 2
Figure 3
Figure 4
®
11. Touch the computer’s inside framework (a dull gray conductive composite material) to discharge any static electricity, as
shown (Figure 5).
Important : To avoid electrostatic discharge damage, always ground yourself by 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.
12. Locate the keyboard cable connector (Figure 6).
13. Pull up on the connector, from side to side if needed, to disconnect it from the computer.
14. Set the keyboard aside.
3B073-0635 Rev. A PowerBook G4 (Gigabit Ethernet) - Keyboard
Figure 5
Figure 6
Installing the Replacement Keyboard
1. Lay the replacement keyboard in the correct orientation over the keyboard opening, then flip it toward you and lay it face
down on the palm rests and trackpad to expose its connector cable (Figure 7).
2. Firmly insert the keyboard cable connector into its connector on the computer.
3. Flip the keyboard back toward the keyboard opening in the case.
4. Hold the keyboard at an angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the
slots below the edge of the opening (Figure 8).
Important : Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening.
5. Lay the keyboard flat into the keyboard opening.
4 B073-0635 Rev. APowerBook G4 (Gigabit Ethernet) - Keyboard
Figure 7
Figure 8
6. Pull down on the keyboard release tabs and then press down on the top portion of the keyboard (Figure 9).
7. Release the tabs to secure the keyboard in place.
8. Close the display and turn the PowerBook over.
9. Replace the battery into the batter y compartment (Figure 10).
Important : Make sure that the battery locks securely into place and that the batter y latch is slid all the way into the locked
position.
10. Reconnect the power cord and any other cables that were connected, and restart your computer.
War ning : Never turn on your computer unless all of its inter nal and exter nal parts are in place and it is
closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.
5B073-0635 Rev. A PowerBook G4 (Gigabit Ethernet) - Keyboard
Figure 9
Figure 10
®
Apple Computer, Inc.
© 2001 Apple Computer, Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple.
The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial pur-
poses without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws.
Every effort has been made to ensure that the information in this document is accurate. Apple is not responsible for printing or clerical er rors.
Apple Computer, Inc.
1 Infinite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
http://www.apple.com
Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
6 B073-0635 Rev. APowerBook G4 (Gigabit Ethernet) - Keyboard
Replacement Instructions
Follow the instructions in this sheet carefully. Failure to follow these instr uctions could damage your equipment and void its
warranty.
Note : Written and video instructions covering customer-installable parts are available at http://www.info.apple.com/installparts/.
War ning : During this procedure, keep small parts away from children.
Tools Required
The only tool required for this procedure is a jeweler’s flat-blade screwdriver (if keyboard is locked).
Opening the Computer
War ning : Always shut down your computer before opening it to avoid damaging its internal components or
causing injury. After you shut down the computer, the internal components can be ver y hot. L et the computer
cool down before continuing.
1. Place your computer on a clean, flat surface.
2. Shut down your computer and wait thirty minutes before continuing.
3. Disconnect the power cord and any other cables connected to the computer.
4. Close the computer and turn it over.
5. Slide the battery latch (Figure 1A) to the right to remove the batter y (Figure 1B).
Removing the battery will prevent you from accidentally tur ning on the computer.
War ning : Removing the battery before shutting down your computer may result in data loss.
6. Turn over the computer.
7. Raise the display so you can access the keyboard.
8. Make sure the keyboard locking screw, located in the small plastic tab to the left of the Num L ock key (Figure 2), is not in
the locked position. Your PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.
1PowerBook G4 (Gigabit Ethernet) - Memory
English
English
Memory
AppleCare
Figure 1
A
B
To unlock the keyboard, turn the screw 1/2 turn.
9. Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys) (Figure 3),
then lift the top portion of the keyboard up slightly, and toward the display.
10. Flip the keyboard over and lay it on the palm rests and trackpad (Figure 4).
2 PowerBook G4 (Gigabit Ethernet) - Memory
Figure 2
Figure 3
Figure 4
®
11. Touch the computer’s inside framework (a dull gray conductive composite material) to discharge any static electricity, as
shown (Figure 5).
Important : To avoid electrostatic discharge damage, always ground yourself by 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.
Removing the Installed Memory Card
1. To remove a memory card, locate the brackets that secure the card on both sides (Figure 6). Carefully spread the brackets
apart until the card releases on each side. Pull the card up and out.
Note : If there is a memor y card in the upper memory slot (Figure 6A), it must be removed before removing a card in the
lower slot (Figure 6B).
3PowerBook G4 (Gigabit Ethernet) - Memory
Figure 5
Figure 6
B
A
Installing the Replacement Memory Card
War ning : When handling a memory card, do not touch its gold connectors. Handle the card only by the edges.
1. To install the memory card, line up the notch in the card with the small tab in the memor y slot. Hold the card at a 30-degree
angle (Figure 7A), and then push the card into the slot until it is firmly seated.
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 two brackets on either side of the card lock into place (Figure 8).
4 PowerBook G4 (Gigabit Ethernet) - Memory
Figure 7
Figure 8
A
Closing the Computer
1. Flip the keyboard back toward the keyboard opening in the case.
2. Hold the keyboard at an angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the
slots below the edge of the opening (Figure 9).
Important : Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening.
3. Lay the keyboard flat into the keyboard opening.
4. Pull down on the keyboard release tabs and then press down on the top portion of the keyboard (Figure 10).
5. Release the tabs to secure the keyboard in place.
6. Close the display and turn the PowerBook over.
5PowerBook G4 (Gigabit Ethernet) - Memory
Figure 9
Figure 10
®
7. Replace the battery into the batter y compartment (Figure 11).
Important : Make sure that the battery locks securely into place and that the batter y latch is slid all the way into the locked
position.
8. Reconnect the power cord and any other cables that were connected, and restart your computer.
War ning : Never turn on your computer unless all of its inter nal and exter nal parts are in place and it is
closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.
Apple Computer, Inc.
© 2001 Apple Computer, Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple.
The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial pur-
poses without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws.
Every effort has been made to ensure that the information in this document is accurate. Apple is not responsible for printing or clerical er rors.
Apple Computer, Inc.
1 Infinite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
http://www.apple.com
Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
6 PowerBook G4 (Gigabit Ethernet) - Memory
Figure 11
Replacement Instructions
Follow the instructions in this sheet carefully. Failure to follow these instr uctions could damage your equipment and void its
warranty.
Note : Written and video instructions covering customer-installable parts are available at http://www.info.apple.com/installparts/.
War ning : During this procedure, keep small parts away from children.
Tools Required
• Jeweler’s flat-blade screwdriver (if keyboard is locked)
• 5 mm wrench, 5 mm socket wrench, or needle nose pliers
Opening the Computer
War ning : Always shut down your computer before opening it to avoid damaging its internal components or
causing injury. After you shut down the computer, the internal components can be ver y hot. L et the computer
cool down before continuing.
1. Place your computer on a clean, flat surface.
2. Shut down your computer and wait thirty minutes before continuing.
3. Disconnect the power cord and any other cables connected to the computer.
4. Close the computer and turn it over.
5. Slide the battery latch (Figure 1A) to the right to remove the batter y (Figure 1B).
Removing the battery will prevent you from accidentally tur ning on the computer.
War ning : Removing the battery before shutting down your computer may result in data loss.
6. Turn over the computer.
7. Raise the display so you can access the keyboard.
8. Make sure the keyboard locking screw, located in the small plastic tab to the left of the Num L ock key (Figure 2), is not in
the locked position. Your PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.
1B073-0634 Rev. A PowerBook G4 (Gigabit Ethernet) - Modem
English
English
Modem
AppleCare
Figure 1
A
B
To unlock the keyboard, turn the screw 1/2 turn.
9. Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys) (Figure 3),
then lift the top portion of the keyboard up slightly, and toward the display.
10. Flip the keyboard over and lay it on the palm rests and trackpad (Figure 4).
2 B073-0634 Rev. APowerBook G4 (Gigabit Ethernet) - Modem
Figure 2
Figure 3
Figure 4
®
11. Touch the computer’s inside framework (a dull gray conductive composite material) to discharge any static electricity, as
shown (Figure 5).
Important : To avoid electrostatic discharge damage, always ground yourself by 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.
Removing the Installed Modem
War ning : You must remove and install the modem carefully to avoid damaging delicate parts, including the
modem connector and connector cable.
1. Locate the modem and remove the 5 mm hexnut screw (Figure 6).
2. Pull up on the right, front corner of the modem to disconnect it from the logic board (Figure 7).
3B073-0634 Rev. A PowerBook G4 (Gigabit Ethernet) - Modem
Figure 5
Figure 6
Figure 7
3. Pull the modem up and to the right slightly to reveal the modem connector cable attached to the left end of the modem
(Figure 8).
4. Carefully disconnect the modem cable connector (Figure 9) and remove the modem from the computer.
Installing the Replacement Modem
1. Connect the modem cable connector to the modem (Figure 10).
Note : The connector plugs into the socket located on the top of the modem’s circuit board. The connector and socket are
keyed to fit with the keys up (Figure 10A) .
4 B073-0634 Rev. APowerBook G4 (Gigabit Ethernet) - Modem
Figure 8
Figure 9
Figure 10
A
2. Carefully guide the cable into the space under the edge of the keyboard opening and lay the modem into the modem opening (Figure 11).
3. Line up the hexnut screw hole, in the left front corner of the modem, with the hole in the logic board. The modem should
lie flat.
Note : Visually verify that the modem connector cable is still attached.
4. Press down on the front edge of the modem, slightly left of center, to firmly connect it to the logic board (Figure 12).
Note : You may need to maneuver the modem around slightly until you feel the connectors match up.
5. Install the hexnut screw (Figure 13).
Note : It may be helpful to use a finger tip to hold the top of the screw straight and steady while turning the screw.
5B073-0634 Rev. A PowerBook G4 (Gigabit Ethernet) - Modem
Figure 12
Figure 13
Figure 11
Closing the Computer
1. Flip the keyboard back toward the keyboard opening in the case.
2. Hold the keyboard at an angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the
slots below the edge of the opening (Figure 14).
Important : Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening.
3. Lay the keyboard flat into the keyboard opening.
4. Pull down on the keyboard release tabs and then press down on the top portion of the keyboard (Figure 15).
5. Release the tabs to secure the keyboard in place.
6. Close the display and turn the PowerBook over.
6 B073-0634 Rev. APowerBook G4 (Gigabit Ethernet) - Modem
Figure 15
Figure 14
®
7. Replace the battery into the batter y compartment (Figure 16).
Important : Make sure that the battery locks securely into place and that the batter y latch is slid all the way into the locked
position.
8. Reconnect the power cord and any other cables that were connected, and restart your computer.
War ning : Never turn on your computer unless all of its inter nal and exter nal parts are in place and it is
closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.
Replacing International Modems
After you have replaced a modem in Europe or Asia, open the software utility Modem Countr y Selector and verif y that the
modem is set to the correct countr y. Modem Country Selector is located in the Apple Extras folder on your hard drive or can
be downloaded as part of the Apple Modem Updater software bundle at http://asu.info.apple.com.
Apple Computer, Inc.
© 2001 Apple Computer, Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple.
The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial pur-
poses without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws.
Every effort has been made to ensure that the information in this document is accurate. Apple is not responsible for printing or clerical er rors.
Apple Computer, Inc.
1 Infinite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
http://www.apple.com
Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
7B073-0634 Rev. A PowerBook G4 (Gigabit Ethernet) - Modem
Figure 16
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