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iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement

Introduction

The motherboard includes all ports except the DC-In board.

What you need

  1. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Battery: step 1, image 1 of 1

    • Use a coin to rotate the battery locking screw 90 degrees clockwise.

    Edit

  2. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 2, image 1 of 1

    • Lift the battery out of the computer.

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  3. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Keyboard: step 3, image 1 of 1

    • Pull the keyboard release tabs toward you and lift up on the keyboard until it pops free.

    • If the keyboard does not come free, use a small flathead screwdriver to turn the keyboard locking screw 180 degrees in either direction and try again. The locking screw is in between the F5 and F6 keys and is a clear piece of plastic.

    • Flip the keyboard over, away from the screen, and rest it face-down on the trackpad area.

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  4. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 4, image 1 of 1

    • If the computer has an AirPort card installed, follow the next three steps to remove it.

    • Push the wire clasp away from the AirPort card and toward the display, then rotate up to free it from the RAM shield.

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  5. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 5, image 1 of 1

    • Grasp the clear plastic tab on the AirPort card and pull toward the display.

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  6. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 6, image 1 of 1

    • Hold the AirPort card in one hand and use your other hand to remove the antenna cable.

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  7. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 7, image 1 of 1

    • Remove the four silver Phillips screws that secure the RAM shield.

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  8. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 8, image 1 of 1

    • Grasp the metal bracket on top of the RAM shield and pull upward to remove the shield.

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  9. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 9, image 1 of 1

    • Pull the keyboard cable up from the logic board, holding the cable as close to the connector as possible.

    • Make sure that you reconnect the keyboard cable before replacing the RAM shield.

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  10. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Lower Case: step 10, image 1 of 1

    • Use a pin (or anything you like) to remove the three rubber feet from the lower case.

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  11. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 11, image 1 of 1

    • Remove the three newly-revealed Phillips screws.

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  12. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 12, image 1 of 1

    • Use a spudger or small flathead screwdriver to pry up the three metal rings that housed the rubber bumpers.

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  13. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 13, image 1 of 1

    • Remove the three hex screws using a T8 Torx screwdriver (or Allen screws using an Allen key if these are used).

    • The shorter screw is in the center of the computer.

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  14. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 14, image 1 of 1

    • Remove the two Phillips screws on either side of the battery contacts.

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  15. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 15, image 1 of 1

    • Breathe deeply. Trying times are ahead, but we promise the lower case does come off.

    • Push the thin rims of the lower case surrounding the battery compartment in, bending them past the tabs, and then lift up to free that corner of the lower case.

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  16. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 16, image 1 of 1

    • There is a slot on the wall of the battery compartment that locks the lower case in place. Use a small flathead screwdriver to pry out the slot's lower rim and pull up on the lower case to free the slot from the tabs holding it.

    • Be careful not to break this clip!

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  17. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 17, image 1 of 1

    • Run a spudger along the seam between the lower case and upper case on the front of the computer to free the tabs locking the lower case. Pull up on the lower case and continue to use the spudger as necessary until you hear three distinct clicks.

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  18. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 18, image 1 of 1

    • Continue to run the spudger around the front, right corner. There are two tabs on the port side of the computer, one near the front corner and one near the sound-out port.

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  19. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 19, image 1 of 1

    • There are three tabs over the optical drive that must be released before the lower case can come off. Slide the spudger into the lower case above the optical drive and run it toward the back of the computer until you hear three distinct clicks.

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  21. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 20, image 1 of 1

    • Once the front and sides of the lower case are free, turn the computer so that the back is facing you and pull the lower case up and toward you until the back tabs pop free (it may be helpful to jiggle the case up and down).

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  22. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 21, image 1 of 1

    • Remove the small greasy springs with white plastic caps from either side of the battery contacts.

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  23. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Bottom Shield: step 22, image 1 of 1

    • Remove the following 10 screws from the bottom shield:

    • Six 3 mm Phillips

    • Three 7.5 mm Phillips

    • One 14 mm Phillips

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  24. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 23, image 1 of 1

    • Lift the bottom shield off.

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  25. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, DC-In Board: step 24, image 1 of 1

    • Remove the single Phillips screw securing the DC-In board.

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  26. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 25, image 1 of 1

    • Disconnect the DC-In cable from the logic board.

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  27. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 26, image 1 of 1

    • Deroute the cable from around the optical drive, removing tape as necessary, and angle the DC-In board out of its compartment.

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  28. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Upper Case: step 27, image 1 of 1

    • Remove the following 11 screws from the bottom of the computer:

    • Three 3 mm Phillips around the battery compartment. (Some models may only have two screws.)

    • Three 4.5 mm Phillips along the optical drive bezel. (a magnetic screwdriver may help to lift these screws out)

    • One 11 mm Phillips in the lower right corner. (if present)

    • Four 14.5 mm Phillips.

    Edit

  29. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 28, image 1 of 1

    • We recommend placing the computer on a soft cloth from this point on to prevent damaging the logic board.

    • Turn over the computer and open it.

    • Remove the 2 Phillips screws (3mm) from the edges of the keyboard area.

    • Remove the 4 mm Phillips screw from the lower left corner.

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  30. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 29, image 1 of 1

    • Before you can yank the upper case off, you must disconnect the trackpad connector, the blue and white power cable, and speaker cable as described in the next steps. Be especially careful with these cables; never pull directly on the cables, but use a spudger to pry up the connector directly.

    • Lift the upper case and use a spudger or your finger to disconnect the trackpad connector hidden beneath the white plastic tab. Due to model variatons your trackpad connector may be different than the one pictured.

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  31. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 30, image 1 of 1

    • Carefully lift the upper case about half of an inch and move it so that you can access the power and speaker cables.

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  32. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 31, image 1 of 1

    • The connectors at the ends of the cables are attached very firmly to the sockets on the logic board. Pulling directly on the cable will either separate the cable from its connector or the socket from the logic board.

    • Lift the upper case enough to disconnect the blue and white power cable from the logic board. Using your fingernails or a dental pick, carefully pry the connector from its socket. Make sure you're pulling only on the connector and not on the socket.

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  33. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 32, image 1 of 1

    • Carefully disconnect the multicolored speaker cable from the logic board. As before, make sure you're pulling only on the connector and not on the socket.

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  34. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Top Shield: step 33, image 1 of 1

    • The screw circled in orange may not be present in some models.

    • Remove the following 16 screws:

    • Thirteen 3 mm Phillips.

    • One 3 mm Phillips. (actual screw not present in image)

    • Two 4 mm Phillips.

    • Be sure to fit the screw near the left hinge through the loop in the display data cable, securing the cable to the upper case.

    • Missing in this photo is the Bluetooth antenna present in some iBooks. It is located at the upper right corner of the battery compartment, just above the 4mm screw. You can see the bracket for the antenna in the photo. It is the two I-shaped holes just above the 4mm screw that must be removed in this step. To remove the antenna, slide it toward the LCD, and tilt it vertically back towards yourself.

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  35. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 34, image 1 of 1

    • Lift the top shield up from the right side, minding the upper left corner, which may catch on the metal framework.

    • If your iBook has Bluetooth, as discussed in the previous step, you will need to slide the antenna through the lower I-shaped hole in the shield before completely removing the shield.

    Edit

  36. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Modem: step 35, image 1 of 1

    • Due to variations between iBook G4 models, your modem may look slightly different from the picture. All of the following steps apply to either model.

    • Remove the two Phillips screws at the corners of the modem.

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  37. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 36, image 1 of 1

    • Lift the modem and modem shield from the bottom.

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  38. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 37, image 1 of 1

    • Disconnect the RJ-11 cable from the top of the modem.

    • When replacing the modem, first make sure that both the microphone and display data cables are routed beneath where the modem lies.

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  39. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Heat Sink: step 38, image 1 of 1

    • Turn the computer over and disconnect the fan cable from the logic board.

    • If present, remove the 4 Phillips screws securing the fan to the metal framework (one screw is hidden by the hand in the image) and lift the fan out of the computer. If no screws are present, continue on.

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  40. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 39, image 1 of 1

    • Turn the computer over and remove the two Phillips screws from the white plastic fingers of the hinge grill.

    • The longer screw goes on the left (Laptop's right) side.

    Edit

  41. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 40, image 1 of 1

    • Due to variations between iBook G4 models, your heatsink may have either 5 or 6 screws. We've noted all possible positions for screws in the step below. If there's no screw to remove, then skip to the next screw. Be sure that you remove all necessary screws before attempting to remove the heat sink.

    • Remove the following 6 screws and 3 nuts from the heat sink:

    • One 2 mm Phillips extending from a finger on the left edge of the heatsink and adjacent the firewire port (not present on some models)

    • Three 3 mm Phillips from around the fan (some models may only have 2 screws).

    • One 3.5 mm Phillips on the left side of the heat sink (not present on some models).

    • One 4.5 mm Phillips at the top right corner of the heat sink.

    • One 6 mm Phillips at the lower left corner of the heat sink.

    • One 4 mm nut from the right side of the heat sink.

    • Two 4 mm screw nuts with attached springs from either side of the heat sink.

    Edit

  42. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 41, image 1 of 1

    • It may be necessary to soften the thermal paste between the logic board and heat sink. You can soften the thermal compound using a hairdryer. Move the hairdryer back and forth over the ribbed metal section of the heat sink for one minute. At this point, the heat sink should come free easily.

    • Use a spudger to pry the heat sink up on the left side, near the hard drive.

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  43. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 42, image 1 of 1

    • Grasp the heat sink in one hand and lift up the hinge grill in the other hand so that you can remove the heat sink from the computer.

    • If you need to mount the heat sink back into the laptop, we have a thermal paste guide that makes replacing the thermal compound easy.

    Edit

  44. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement, Logic Board: step 43, image 1 of 1

    • Remove the two Phillips screws securing the white plastic fingers of the I/O bezel to the metal framework.

    • The longer screw goes into the longer finger, closer to the display.

    Edit

  45. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 44, image 1 of 1

    • Lift up the left side of the computer and slide the I/O bezel away.

    Edit

  46. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 45, image 1 of 1

    • Wedge a spudger between the RJ-11 board and the metal framework and slide the board to the left, off of the logic board.

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  47. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 46, image 1 of 1

    • The cable you're about to remove is very fragile - do not pull directly on the wires. Instead, try to pry up the connector directly, using a spudger or a small flathead screwdriver if necessary.

    • Disconnect the microphone cable at the front of the computer, between the left side of the hard drive and the metal framework.

    Edit

  48. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 47, image 1 of 1

    • Use the black plastic loop to disconnect the display data cable from the logic board.

    Edit

  49. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 48, image 1 of 1

    • There are two different styles of optical drive ribbon. If the cable extending from the optical drive is white, skip this step. If the cable is orange, then complete this step and skip the next two steps.

    • Disconnect the orange optical drive ribbon from the logic board.

    Edit

  50. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 49, image 1 of 1

    • This is a diagram of the ribbon clamp connector you will disconnect in the next step.

    • 1) With your fingernails, grasp the locking bar on either side and pull up a small amount (about 1/16" or 2 mm).

    • 2) After disengaging the locking bar, slide the cable out of the connector.

    Edit

  51. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 50, image 1 of 1

    • Release the optical drive ribbon clamp as described above. Slide the optical drive ribbon out of its connector.

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  52. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 51, image 1 of 1

    • Tilt the computer up and disconnect the orange hard drive ribbon cable from the logic board.

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  53. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 52, image 1 of 1

    • Remove the four Phillips screws securing the hard drive to the metal framework.

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  54. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 53, image 1 of 1

    • Lift the hard drive up, carefully guiding the cable through the slot in the lower case.

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  55. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 54, image 1 of 1

    • Remove the single Phillips screw securing the logic board to the metal framework.

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  56. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 55, image 1 of 1

    • Close the display and flip the computer over.

    • The 3.5 mm Phillips screw indicated below with an orange circle may be absent in some models.

    • Remove the following 8 screws:

    • Four 4 mm Phillips.

    • One 3.5 mm Phillips near the sleep light connector (may not be in your specific model).

    • One 3 mm Phillips with a large head in the lower left corner.

    • One wide 4 mm Phillips.

    • One 3 mm Phillips.

    Edit

  57. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 56, image 1 of 1

    • Disconnect the inverter and sleep light cables from the logic board.

    • When replacing the logic board, make sure that the inverter cable is not pinned under the logic board.

    Edit

  58. iBook G4 14" 933 MHz-1.33 GHz Logic Board Replacement: step 57, image 1 of 1

    • Lift the logic board far enough to access and disconnect the battery connector.

    • Be sure to connect the battery connector before seating the logic board in the metal framework.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order.

19 other people completed this guide.

Attached Documents

Author

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iRobot

Member since: 09/24/09

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2 Comments

First of all, outstanding! I couldn't have done it otherwise. I especially liked the photography. I am a pro in that field and I know the good stuff when I see it.

I just have a few small suggestions.

1) You might want to warn about grounding for rank amateurs like me.

2) The screw sheets were fantastic but it might help to add the step/s involved. Also I found double sided foam tape was great for keeping the screws in place.

3) When removing the back cover I used kitchen matches camphored at one end as shims as I went along so I would not lose ground as I continued around the bottom cover. I also found a fifth of Jack Daniel's helped to steady my hands and give me patience.

4) The whole thermal compound thing was confusing. I looked up the suggested procedure and didn't know what to do about "the blue pads". I posted a question and got conflicting answers. It would be great if this could get resolved once and for all.

5) You might want to talk about installing the RAM when replacing the logic board

Thanks!

Mark Wright - Reply

step 27: I am not able to recognize which tool shell I use to take off red and yellow screws.

I have your toolkit 54 Bit Driver.

su40 - Reply

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