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© 2003 Apple Computer, Inc. All rights reserved.  Service SourcePowerBook G4 (17-inch) 17 March 2003

8 - PowerBook G4 (17-inch) Take Apart Memory Door and Memory Cards Memory Door and Memory Cards Tools This procedure requires the following tools:•

98 - PowerBook G4 (17-inch) Take Apart Bottom Case AssemblyProcedureWhen all preliminary steps are performed, the bottom case is the part that remains

© 2003 Apple Computer, Inc. All rights reserved. Service SourceTroubleshootingPowerBook G4 (17-inch)

PowerBook G4 (17-inch) Troubleshooting - 1 General InformationGeneral InformationWire and Flex CablesWith the very thin enclosure design and dispersed

2 - PowerBook G4 (17-inch) Troubleshooting General InformationFan (right) cable (to logic board) Power/control for right fanHard drive flex cable (to l

PowerBook G4 (17-inch) Troubleshooting - 3 General InformationPotential flex cable and connector issues.ZIF connector locking BarThe locking bar holds

4 - PowerBook G4 (17-inch) Troubleshooting General InformationThe cable is not secured straight.Make sure that the alignment mark, if present, or meta

PowerBook G4 (17-inch) Troubleshooting - 5 General InformationCables nicked or crimpedFor cables in the bottom case assembly routed along the front le

6 - PowerBook G4 (17-inch) Troubleshooting General InformationHardware Troubleshooting Tools and TipsApple Hardware Test 2.0.1 (AHT)Starting with the

PowerBook G4 (17-inch) Troubleshooting - 7 General Information Apple Service Diagnostic Main screenApple Service Diagnostic Select test tab

8 - PowerBook G4 (17-inch) Troubleshooting General InformationApple Service Diagnostic Hardware info tab Apple Service Diagnostic Test log tab Resetti

PowerBook G4 (17-inch) Take Apart - 9 Memory Door and Memory Cards Procedure Warning: If the computer has been recently operating, allow it to cool

PowerBook G4 (17-inch) Troubleshooting - 9 General InformationPower-on pads on logic boardWith the top case removed, the power-on button is disconnect

10 - PowerBook G4 (17-inch) Troubleshooting General InformationPMU NMI and PMU Reset pads on logic boardIn addition to the power-on button pads on the

PowerBook G4 (17-inch) Troubleshooting - 11 General InformationSoftware Troubleshooting Tips and ToolsMac OS X onlyStarting with the PowerBook G4 (17-

12 - PowerBook G4 (17-inch) Troubleshooting General InformationTo start up into Safe Mode (to Safe Boot), do this:1. Be sure the computer is shut down

PowerBook G4 (17-inch) Troubleshooting - 13 Hardware Symptom ChartsHardware Symptom ChartsHow to Use the Symptom ChartsThe Symptom Charts included in

14 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsPower Adapter NoteThe system was designed to use the Apple 65-Watt Portable Power A

PowerBook G4 (17-inch) Troubleshooting - 15 Hardware Symptom ChartsStartupThe computer will not power on (no fan movement, hard drive spin up and disp

16 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsMemory error message “The built-in memory test has detected an error” appears on th

PowerBook G4 (17-inch) Troubleshooting - 17 Hardware Symptom ChartsBlue screen appears (a spinning disc cursor may also be visible),Prohibitory Sign a

18 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsFlashing question mark appears on the screenNote: This system will only boot the Ma

10 - PowerBook G4 (17-inch) Take Apart Memory Door and Memory Cards Note: If only one memory card is installed, it’s factory installed in the top m

PowerBook G4 (17-inch) Troubleshooting - 19 Hardware Symptom ChartsSystem shuts down intermittentlyImportant: This issue can be a result of not using

20 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsApplication Quits, Kernel panic or other booting problems1. If a specific applicatio

PowerBook G4 (17-inch) Troubleshooting - 21 Hardware Symptom ChartsComputer beeps twice at startup1. Two beeps means that EDO memory is installed in t

22 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsAirPort Extreme CardAirPort Extreme Card not recognized1. In Mac OS X, use Software

PowerBook G4 (17-inch) Troubleshooting - 23 Hardware Symptom ChartsBatteryBattery will not eject1. Flip over the unit and slide both battery latches t

24 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts4. Try known-good battery. If it charges, replace the battery. If doesn’t charge, c

PowerBook G4 (17-inch) Troubleshooting - 25 Hardware Symptom ChartsDisplay Display latch not workingNote: When the display is being closed, hooks in t

26 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts5. If the number of subpixel anomalies is acceptable, explain to the customer that

PowerBook G4 (17-inch) Troubleshooting - 27 Hardware Symptom ChartsKeyboardNo response from any key on keyboard1. Remove any connected peripherals and

28 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts2. Check the keyboard backlight cable connection to the top case flex cable and the

PowerBook G4 (17-inch) Take Apart - 11 Memory Door and Memory Cards6. Align the notch in the board with the tab in the slot and insert the replacem

PowerBook G4 (17-inch) Troubleshooting - 29 Hardware Symptom ChartsModemNo modem dial tone1. Check that the correct modem is selected in the Network P

30 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsOptical DriveThe optical drive does not accept CD or DVD disc (mechanical failure)1

PowerBook G4 (17-inch) Troubleshooting - 31 Hardware Symptom ChartsPC CardPC Card will not insert into the PC Card slot1. Make sure the PC Card eject

32 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsPortsA USB port is not recognizing devices1. Completely shut down, then press the p

PowerBook G4 (17-inch) Troubleshooting - 33 Hardware Symptom Charts3. Make sure the cables are firmly attached.4. Try a different cable.5. If self powe

34 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts7. Reset PRAM (Press the power button, then hold down the Option-Command-P-R keys u

PowerBook G4 (17-inch) Troubleshooting - 35 Hardware Symptom ChartsTrackpadThe cursor does not move when you are using trackpad1. Verify that no USB d

36 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom ChartsVideoNo display, or dim display, but computer appears to operate correctly1. Remove

PowerBook G4 (17-inch) Troubleshooting - 37 Hardware Symptom ChartsMisc. SymptomsThe Date and Time settings reset all the timeNote: Resetting the powe

38 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts8. Shut down system.9. Replace sound board.10. Replace logic board.

12 - PowerBook G4 (17-inch) Take Apart Memory Door and Memory Cards8. To reinstall the memory door, hold it at a low angle to the battery bay and sl

© 2003 Apple Computer, Inc. All rights reserved. Service SourceViewsPowerBook G4 (17-inch)

PowerBook G4 (17-inch) Exploded View - 1 Keyboard 922-5776Clutch Spring End Cap Kit (Left & Right) 076-1029Top Case Assembly 922-5778Ambient Li

PowerBook G4 (17-inch) Take Apart - 13 Memory Door and Memory Cards9. Install the memory door screws. Note: Before securing, check that the door e

14 - PowerBook G4 (17-inch) Take Apart Top Case Top Case Tools This procedure requires the following tools:• #0 Phillips screwdriver (magnetized) •

PowerBook G4 (17-inch) Take Apart - 15 Top Case Preliminary Steps Before you begin, remove the following:• Battery• Memory door • Lower memory card

16 - PowerBook G4 (17-inch) Take Apart Top Case5. Locate the top case flex cable and ZIF connector.6. Very carefully disconnect and remove the cable

PowerBook G4 (17-inch) Take Apart - 17 Top Case7. Open the display and place the computer on its side.8. Remove four side screws from both sides.

© 2003 Apple Computer, Inc. All rights reserved.  Service SourceTake Apart PowerBook G4 (17-inch)

18 - PowerBook G4 (17-inch) Take Apart Top Case9. Turn the computer over.10. Pull up on the top case along the sides and front until it releases. No

PowerBook G4 (17-inch) Take Apart - 19 Top Case Replacement Procedure Note: If replacing the top case, remove the keyboard and transfer it to the

20 - PowerBook G4 (17-inch) Take Apart Top Case3. Check perimeter wiring, where shown, to verify that it will not be caught or pinched by the top ca

PowerBook G4 (17-inch) Take Apart - 21 Top Case5. Verify that cables for Bluetooth, AirPort Extreme, inverter and power cable from the DC-in board

22 - PowerBook G4 (17-inch) Take Apart Top Case7. Verify that the sleep LED wires route over the notch in the frame (secure with Kapton tape) and al

PowerBook G4 (17-inch) Take Apart - 23 Top Case9. Check that the perimeter metal tabs are not bent. Note: Do not bend the tabs; the metal quickly

24 - PowerBook G4 (17-inch) Take Apart Top Case12. The cable should point straight up.13. Open the display to 90-degrees and tilt the computer back

PowerBook G4 (17-inch) Take Apart - 25 Top Case Note: For the following procedures, you will want to keep the top case close to the bottom case so

26 - PowerBook G4 (17-inch) Take Apart Top Case18. Note: If the tabs along the sides of the top case catch on the bottom case, use a narrow tool an

PowerBook G4 (17-inch) Take Apart - 27 Top Case Important: The top case should lay flat along the sides and top, if not, make sure that cables and

PowerBook G4 (17-inch) Take Apart - 1 General Information Overview Some key features that distinguish this computer from earlier PowerBook models

28 - PowerBook G4 (17-inch) Take Apart Top Case20. Carefully close the display, without forcing. If it does not close easily, reinstall the top case

PowerBook G4 (17-inch) Take Apart - 29 Top Case23. Carefully pull the locking bar of the ZIF connector out slightly. Slide the flex cable over the l

30 - PowerBook G4 (17-inch) Take Apart Top Case25. To check this, insert the flat-blade side of a black stick between the display and top case then p

PowerBook G4 (17-inch) Take Apart - 31 Top Case27. Install the other “shoulder” screw in the end screw hole.28. Install the remaining side screws.2

32 - PowerBook G4 (17-inch) Take Apart Keyboard Keyboard Tools This procedure requires the following tools:• #0 Phillips screwdriver• Torx T8 screwd

PowerBook G4 (17-inch) Take Apart - 33 KeyboardProcedure1. Turn the top case over, locate the keyboard flex cable and remove the Kapton tape holding

34 - PowerBook G4 (17-inch) Take Apart Keyboard4. Remove remaining adhesive, if any, from the top case and screw heads.5. Remove the fourteen identica

PowerBook G4 (17-inch) Take Apart - 35 Keyboard7. Continue until the keyboard can be grasped, then carefully lift it up and guide out its flex cable (s

36 - PowerBook G4 (17-inch) Take Apart Keyboard8. Carefully rub off any adhesive residue left in the keyboard well and on the fiber optics.

PowerBook G4 (17-inch) Take Apart - 37 KeyboardReplacement Procedure1. To install the keyboard or replacement keyboard, insert its flex cable through t

2 - PowerBook G4 (17-inch) Take Apart Important Notes • Memory from previous PowerBook models is not compatible with this computer. Do not use older

38 - PowerBook G4 (17-inch) Take Apart Keyboard5. If replacing the existing keyboard, such as during a top case replacement, secure the end of the key

PowerBook G4 (17-inch) Take Apart - 39 Keyboard7. Fold the cable flat and secure it’s adhesive by firmly holding the left side (to prevent cable movemen

40 - PowerBook G4 (17-inch) Take Apart Keyboard9. Verify that the cable is still fully inserted, straight and secure in the connector.10. Turn over th

PowerBook G4 (17-inch) Take Apart - 41 Hard DriveHard DriveToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• #1 Phi

42 - PowerBook G4 (17-inch) Take Apart Hard DriveProcedure1. Use the tabs on the connectors to disconnect and remove the sound board flex cable.Note: R

PowerBook G4 (17-inch) Take Apart - 43 Hard Drive5. Transfer brackets, side screws, rubber shockpads and the flex cable to the replacement hard drive.6

44 - PowerBook G4 (17-inch) Take Apart Sound BoardSound BoardToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• Blac

PowerBook G4 (17-inch) Take Apart - 45 Sound BoardProcedure1. Disconnect the speaker wires connector and sleep LED connector.2. Remove the two screws.

46 - PowerBook G4 (17-inch) Take Apart Sound BoardReplacement Note: To prevent damage to the sleep LED wires during top case reassembly, verify that t

PowerBook G4 (17-inch) Take Apart - 47 SuperDriveSuperDriveToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• #1 Phi

PowerBook G4 (17-inch) Take Apart - 3 Serial Number Location The serial number is located in the battery bay.

48 - PowerBook G4 (17-inch) Take Apart SuperDriveProcedure1. Grasp the SuperDrive flex cable connector, where shown, and rock from side to side while p

PowerBook G4 (17-inch) Take Apart - 49 SuperDrive4. Transfer the flex cable, brackets and screws to the replacement SuperDrive.5. Install the replaceme

50 - PowerBook G4 (17-inch) Take Apart Backup Battery BoardBackup Battery BoardToolsThis procedure requires the following tools:• Torx T8 screwdriver

PowerBook G4 (17-inch) Take Apart - 51 Backup Battery BoardProcedure1. Release the two ZIF connectors and remove the flex cable.2. Remove the three scr

52 - PowerBook G4 (17-inch) Take Apart ModemModemToolsThis procedure requires the following tools:• 4 mm socket wrench• Needlenose pliers (helpful to

PowerBook G4 (17-inch) Take Apart - 53 ModemProcedure1. Disconnect the modem flex cable.2. Remove the three hex nuts.3. Lift the modem up slightly and

54 - PowerBook G4 (17-inch) Take Apart PC Card Cage and AirPort Extreme AssemblyPC Card Cage and AirPort Extreme AssemblyToolsThis procedure requires

PowerBook G4 (17-inch) Take Apart - 55 PC Card Cage and AirPort Extreme AssemblyProcedure1. Turn the computer over and remove the rubber gasket on the

56 - PowerBook G4 (17-inch) Take Apart PC Card Cage and AirPort Extreme Assembly3. Pull out the coupling (joining the AirPort Extreme jumper and anten

PowerBook G4 (17-inch) Take Apart - 57 PC Card Cage and AirPort Extreme Assembly5. Important: The cross piece at the front end of the PC card cage is

4 - PowerBook G4 (17-inch) Take Apart Zero Insertion Force Connectors Zero insertion force (ZIF) connectors are used in several locations in the com

58 - PowerBook G4 (17-inch) Take Apart PC Card Cage and AirPort Extreme AssemblyNote: Wiggling the card from side to side slightly may help to release

PowerBook G4 (17-inch) Take Apart - 59 PC Card Cage and AirPort Extreme AssemblyReplacement Note: Ensure that the pin on the PC card cage eject button

60 - PowerBook G4 (17-inch) Take Apart BluetoothBluetoothToolsThis procedure requires the following tools:• Torx T6 screwdriver (magnetized)• Black st

PowerBook G4 (17-inch) Take Apart - 61 BluetoothProcedure1. Release the two ZIF connectors and move the flex cable aside.2. Disconnect the Bluetooth an

62 - PowerBook G4 (17-inch) Take Apart Bluetooth3. Remove the screw and Bluetooth board.4. Install the replacement Bluetooth board, and reassemble the

PowerBook G4 (17-inch) Take Apart - 63 SpeakersSpeakersToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• Black stic

64 - PowerBook G4 (17-inch) Take Apart SpeakersProcedureNote: Lift up any Kapton tape as necessary and reserve for replacement.1. Pull wires out of ro

PowerBook G4 (17-inch) Take Apart - 65 Speakers3. Lift out speakers.4. Deroute the speaker wires along logic board.Replacement Note: Verify proper rou

66 - PowerBook G4 (17-inch) Take Apart DC-In BoardDC-In BoardToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• Blac

PowerBook G4 (17-inch) Take Apart - 67 DC-In BoardProcedure1. Disconnect the RJ-11 connector to the modem.2. Disconnect the power cable on the DC-in b

PowerBook G4 (17-inch) Take Apart - 5 To connect a flex cable Make sure the locking bar is released, then slide the end of the flex cable all the wa

68 - PowerBook G4 (17-inch) Take Apart DC-In BoardReplacement Note: Make sure that the replacement DC-in board includes the RJ-11 port and ambient lig

PowerBook G4 (17-inch) Take Apart - 69 DC-In Board5. Install the replacement DC-in board, and reassemble the computer.Note: Insert a black stick into

70 - PowerBook G4 (17-inch) Take Apart Logic BoardLogic BoardToolsThis procedure requires the following tools:• Torx T8 screwdriver (magnetized)• X-Ac

PowerBook G4 (17-inch) Take Apart - 71 Logic BoardPreliminary StepsBefore you begin run the computer until warm (if possible) to help soften the therm

72 - PowerBook G4 (17-inch) Take Apart Logic Board2. Turn the computer over. Disconnect the cables shown.3. Remove the twelve screws.

PowerBook G4 (17-inch) Take Apart - 73 Logic Board4. Lift the logic board from the left side and pivot along the port side. Note: The thermal material

74 - PowerBook G4 (17-inch) Take Apart Logic BoardReplacement ProcedureWarning: Flexing of the logic board can break solder joints to chips. To preven

PowerBook G4 (17-inch) Take Apart - 75 Logic Board2. On the back side of the logic board, remove the existing rectangular thermal pad covering two chi

76 - PowerBook G4 (17-inch) Take Apart Logic Board4. Use a black stick to remove all the original thermal material on the heatsink at the locations sh

PowerBook G4 (17-inch) Take Apart - 77 Logic BoardNote: Avoid unnecessary contact with thermal gel or either side of thermal pads as dirt and body oil

6 - PowerBook G4 (17-inch) Take Apart Battery Battery Tools This procedure requires the following tools:• Soft cloth Part LocationPreliminary Steps

78 - PowerBook G4 (17-inch) Take Apart Logic BoardCenter that side over the mating surface (raised surface) and evenly apply it, without air pockets,

PowerBook G4 (17-inch) Take Apart - 79 Logic Board7. Apply approximately 0.3 to 0.5 cubic centimeter (cc) of T630 thermal gel (922-5929) to the center

80 - PowerBook G4 (17-inch) Take Apart Logic Board8. If the logic board was removed to facilitate another procedure and will be reinstalled, also remo

PowerBook G4 (17-inch) Take Apart - 81 Logic Board9. To replace the logic board, guide the port side into the port openings on the bottom case. Align

82 - PowerBook G4 (17-inch) Take Apart Display Panel AssemblyDisplay Panel AssemblyToolsThis procedure requires the following tools:• Torx T6 screwdri

PowerBook G4 (17-inch) Take Apart - 83 Display Panel AssemblyProcedureNote: During these procedures, remove and reserve any Kapton tape for replacemen

84 - PowerBook G4 (17-inch) Take Apart Display Panel Assembly3. Carefully disconnect the Bluetooth cable connector. Important: During the following pr

PowerBook G4 (17-inch) Take Apart - 85 Display Panel Assembly5. Move the display to a 90-degree angle and remove the two screws for the end caps of th

86 - PowerBook G4 (17-inch) Take Apart Display Panel Assembly7. Lift off the display panel and clutch barrel assembly.8. Remove the clutch spring end

PowerBook G4 (17-inch) Take Apart - 87 Display Panel Assembly9. Remove the two screws and torsion bar on each side.

PowerBook G4 (17-inch) Take Apart - 7 Battery Procedure Warning: If the computer has been recently operating, allow it to cool down before performi

88 - PowerBook G4 (17-inch) Take Apart Display Panel AssemblyReplacement Procedure1. To reinstall the display panel assembly, replace the end caps ont

PowerBook G4 (17-inch) Take Apart - 89 Display Panel Assembly3. On the clutch, push the limit stop feet all the way back, on both sides.4. Lower the d

90 - PowerBook G4 (17-inch) Take Apart Display Panel Assembly6. Install and tighten the screws for the clutch cleats, on both sides.7. Hold the displa

PowerBook G4 (17-inch) Take Apart - 91 Display Panel Assembly8. To install the pop-up torsion bars, insert the bar so that the notch is behind the pop

92 - PowerBook G4 (17-inch) Take Apart Display Panel Assembly10. Replace the wire bracket screws on both sides.11. The left speaker has channels for B

PowerBook G4 (17-inch) Take Apart - 93 Display Panel Assembly13. Verify that the LVDS cable’s metal bead fits into the metal channel (rounded side up

94 - PowerBook G4 (17-inch) Take Apart Display Panel Assembly15. Reassemble and test the computer.16. Testing the computer should include the display

PowerBook G4 (17-inch) Take Apart - 95 Heatsink and Fan AssemblyHeatsink and Fan AssemblyToolsThis procedure requires the following tools:• Torx T8 sc

96 - PowerBook G4 (17-inch) Take Apart Heatsink and Fan AssemblyProcedureNote: The Heatsink and fans are one assembly part.1. Remove the screws and li

PowerBook G4 (17-inch) Take Apart - 97 Bottom Case AssemblyBottom Case AssemblyPart LocationPreliminary StepsBefore you begin, remove the following:•