Apple PowerBook G4 (Titanium 400 and 500MHz) 02 Service Manual
Take Apart
PowerBook G4 (Titanium)- 400, 500 MHz
AppleCare
Updated : 04-06-2002
TITLE
PowerBook G4: AirPort Card Not Recognized
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
AirPort Card not recognized.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Use Software Update control panel or see the Apple Software Updates web page to make
sure the latest version of AirPort software is installed.
1.
Boot using Mac OS All extensions setting.2.
Reseat AirPort Card.3.
Remove and reinstall the AirPort software.4.
Replace with known-good AirPort Card.5.
Replace logic board.6.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Battery Will Not Eject
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
Releasing the battery latch does not eject the battery.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Flip over the unit and release the battery latch by sliding the latch towards the PC Card
button.
1.
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.
2.
Verify proper latch operation, by exercixing the latch. If it does not move smoothly or
evenly, replace rib chassis assembly.
3.
If the latch does exercise correctly, verify that the customer is not installing the battery
with excessive force.
4.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Hard Drive Will Not Initialize
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
Hard drive will not initialize
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Boot from PowerBook G4 Software Install CD and see if the hard drive mounts on the
desktop.
1.
Launch Drive Setup and update hard drive driver.2.
If no hard drive is found in Drive Setup, verify the hard drive cable connections.3.
Replace hard drive cable.4.
Replace hard drive.
Important: If the computer is under warranty and data recovery is required, refer to
Article 31077: Hard Drive Data Recovery & Warranty Implications, for important
information.
5.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: No Modem Dial Tone
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
No modem dial tone.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Verify known-good analog (not digital) telephone line.1.
Verify known-good RJ11 telephone cable.2.
Verify RJ11 cable is not plugged into Ethernet port.3.
Inspect RJ11 connector and modem port for pin damage.4.
Verify RJ11 telephone cable is firmly installed in the modem port.5.
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.
6.
Verify RJ11 modem cable is plugged into modem correctly.7.
Replace modem.8.
Document Information
Product Area: PowerBook G4
TITLE
PowerBook G4: DVD Disc Icon Does Not Show Up On Desktop, Or A
Dialog Box Appears To Initialize Disc
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
DVD disc icon does not show up on desktop, or a dialog box appears to initialize disc.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Use Software Update control panel to update firmware.1.
Try cleaning the disc. If it is dirty or scratched, it may not mount.2.
Try a different disc.3.
Select "Mac OS All" in the Extensions Manager control panel and restart.4.
Replace optical drive cable.5.
Replace optical drive.6.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: PC Card Will Not Insert
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
PC Card will not insert into the PC Card slot.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Make sure the PC Card eject button is in, before attempting to insert a PC Card.
1.
Make sure the PC Card is right side up (cards are keyed and cannot be inserted upside
down).
2.
Verify the PC Card is not warped or damaged in any way; if so replace the card.3.
Try a different PC Card.4.
Carefully raise the PC Card slot cover and check for a foreign object inside the slot.5.
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).
6.
If the slot cover is preventing the card from being inserted, replace the top case.7.
TITLE
PowerBook G4: No Sound And Sound Control Panel Indicates An
External Device Is Plugged In
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
No sound heard and the Speakers section of the Sound control panel indicates that an exteranal
device is plugged in (to the headphone jack or USB ports).
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
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.
1.
If not, and if nothing is plugged in, try plugging in headphones or external speakers.
Restart the computer. Remove the device.
2.
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).
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).
3.
Replace logic board.4.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: No Display, Or Dim Display, But Computer Appears
To Operate Correctly
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
No display, or dim display, but computer appears to operate correctly.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Remove any connected peripherals.1.
Try known-good power outlet, power adapter and power cord.2.
Press the F2 key (with the fn key pressed and not pressed) to increase the screen brightness
settings.
3.
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.
4.
Verify inverter cable and LVDS cable connections are seated properly and that the cables
are not damaged (refer display assembly replacement instructions).
5.
Replace inverter board.6.
Replace display assembly.7.
Replace logic board.8.
TITLE
PowerBook G4: No Video On External Device Connected Via S-Video
Port
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
Computer appears to work, but no video on external device connected to the TV out port
(S-video out port).
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
The device must be connected to the S-video port while the PowerBook is sleeping or off
for the device to be recognized.
1.
If running Mac OS X, verify that this issue is also in Mac OS 9.2.
Verify monitor that is used in testing is known-good and is supported by this computer.3.
Try different cable(s).4.
Replace logic board.5.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: No Video On External Device Connected To External
Monitor Port
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
No video on an external device connected to the External monitor port.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
In the Resolution control strip, see if the device is being recognized. If so select resolution.1.
If running Mac OS X, verify that this issue is also in Mac OS 9.2.
Verify monitor that is used in testing is known-good and is supported by this computer.3.
Try another VGA monitor cable.4.
Restart the computer and text again.5.
Replace logic board.6.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Latch Not Working
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
The latching mechanism that holds the display closed is not working.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
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.
Verify hook operation by exercising the latch mechanism.1.
If the hook does not operate properly, replace the display assembly.2.
If the latch or latch button does not operate properly, replace the top case assembly.3.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Date And Time Resets All The Time
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
The Date and Time settings reset all the time.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Note: Resetting the power manager or PRAM resets the date and time.
Verify that the reset button is not stuck.1.
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.■
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.■
2.
If not the backup battery, replace PMU Card.3.
Note: For main and backup battery part numbers, refer to article 11751: Macintosh Family:
Batteries and Part Numbers.
TITLE
PowerBook G4: -3278 Error
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
AirPort Card installed and received a -3278 error.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Use Software Update control panel or see the Apple Software Updates web page to make
sure the latest version of AirPort software is installed.
1.
Boot using Mac OS All extensions setting.2.
Reseat AirPort Card.3.
Remove and reinstall the AirPort software.4.
Replace with known-good AirPort Card.5.
Replace logic board.6.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Microphone Not Working
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
The microphone is not working.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
Check the Sound control panel and verify that the selection for input is the built-in
microphone.
1.
Check the signal level and level meter and adjust the gain.2.
Remove Sound Preferences from the Preferences folder and restart.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.
If no sound as well as microphone is not working, verify cable connections.5.
Replace top case.6.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
TITLE
PowerBook G4: Beeps Are Heard at Startup (one to four beeps)
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
The computer automatically performs a power-on self test when it is turned on after being fully
shut down (not a restart). This article explains what to do if one to four beeps are heard.
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
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.
One beep: 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.
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.■
❍
Two beeps: EDO memory is installed in the RAM expansion slot. The PowerBook does not
accept EDO memory.
Replace RAM card/s with known-good and compatible RAM and restart.
If symptom repeats, replace logic board.
■
❍
Three beeps: No RAM banks passed memory testing.
If a RAM card is installed in the upper expansion slot (if not, skip to next step), remove it1.
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.
■
■
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.
■
2.
Four beeps: Bad checksum for the remainder of the boot ROM. The ROM (which is located
on the logic board) is bad.
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
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
Support Site Index | Export Compliance
Contact Us | Privacy Notice
Copyright © 2001 Apple Computer, Inc. All rights reserved.
1-800-MY-APPLE
TITLE
PowerBook G4: Dialog Box "Built-in Memory Test Has Detected an
Error" Comes Up On Startup
Writer:
Created:
Modified:
Huckabone, Michael
2001-7-20
2001-8-17
TOPIC
During startup boot sequence and before reaching Finder, the following dialog box appears: "The
built-in memory test has detected an error."
DISCUSSION
*RESTRICTED: Apple Specialists/Apple-Authorized Self-Servicing Providers *
Internal Use Only
Troubleshooting Procedure
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.
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.
■
■
1.
If a RAM card is NOT installed in the upper expansion slot, replace RAM in lower RAM
slot with known-good SDRAM SO-DIMM RAM card and restart. Refer to
Customer-Installable-Parts Memory Replacement instructions.
If symptom repeats, replace logic board.
■
2.
Document Information
Product Area: PowerBook G4
Category: PowerBook G4 Hardware
Sub Category: Troubleshooting
Keywords: kpbook kssts hts
Contributor:
Process Owner:
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 instr uctions 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.
1B073-0599 Rev. B PowerBook G4 (Titanium) - 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 B073-0599 Rev. BPowerBook G4 (Titanium) - 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.
3B073-0599 Rev. B PowerBook G4 (Titanium) - 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 B073-0599 Rev. BPowerBook G4 (Titanium) - 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 battery 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.
5B073-0599 Rev. B PowerBook G4 (Titanium) - Keyboard
Figure 9
Figure 10
®
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 instr uctions 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 (Titanium) - 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 (Titanium) - 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 (Titanium) - 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 (Titanium) - Memory
Figure 7
Figure 8
A
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