PowerBook G4 Titanium Mercury Display Replacement

Featured Guide

Featured Guide

This guide has been found to be exceptionally cool by the iFixit staff.

  • Author: iRobot
  • Difficulty: Moderate

Change out the entire display assembly, including the hinges and casing. This installation is MUCH easier than replacing just the LCD panel.

Sections

Edit Step 1 Keyboard  ¶ 

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Edit Step 1 Keyboard  ¶ 

  • Remove the battery.

  • Turn the keyboard locking screw so that it is parallel to the space bar.

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

Edit Step 2  ¶ 

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Edit Step 2  ¶ 

  • Rest the keyboard face down on the trackpad area.

  • Disconnect the keyboard connector from the logic board.

Edit Step 3  ¶ 

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Edit Step 3  ¶ 

  • Your laptop should look approximately like this.

Edit Step 4 RAM  ¶ 

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Edit Step 4 RAM  ¶ 

  • Release the tabs on each side of the RAM chip at the same time. These tabs lock the chip in place and releasing them will cause the chip to "pop" up.

  • Pull the RAM chip out.

  • Repeat this process if a second RAM chip is installed.

Edit Step 5 Lower Case  ¶ 

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Edit Step 5 Lower Case  ¶ 

  • Turn the G4 over.

  • Remove the eight Phillips screws from the lower case.

Edit Step 6  ¶ 

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Edit Step 6  ¶ 

  • Using your thumbs, slide the lower case away from you.

  • The lower case may stick in the front on a tab just above the center of the DVD drive. Be careful as you work the case off, or you may break the thin strip of plastic just above the drive.

  • Lift the lower case off.

Edit Step 7  ¶ 

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Edit Step 7  ¶ 

  • Your laptop should look approximately like this.

Edit Step 8 Airport Card  ¶ 

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Edit Step 8 Airport Card  ¶ 

  • Skip this step if your computer does not have an Airport card.

  • Firmly grasp the plastic tab attached to the Airport card and pull up and to the left.

  • Disconnect the antenna cable from the left side of the Airport card.

Edit Step 9 Hard Drive  ¶ 

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Edit Step 9 Hard Drive  ¶ 

  • Disconnect the hard drive ribbon from the logic board using a spudger or the tip of your finger.

Edit Step 10  ¶ 

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Edit Step 10  ¶ 

  • To free the hard drive, remove the two T8 Torx screws from the right wall of the battery housing.

Edit Step 11  ¶ 

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Edit Step 11  ¶ 

  • Remove the hard drive by gently grasping the orange ribbon cable and lifting the left edge up and out of the computer.

  • There are four rubber bumpers that fit over the hard drive screws. Ensure that these bumpers come out when you remove the hard drive.

Edit Step 12  ¶ 

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Edit Step 12  ¶ 

  • Your laptop should look approximately like this.

Edit Step 13 DVD Drive  ¶ 

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Edit Step 13 DVD Drive  ¶ 

  • Before continuing, place a soft cloth on your work surface to rest the computer on. Turn the G4 over, making sure the DVD drive doesn't fall out.

  • Carefully peel the adhesive strip away from the DVD drive. The plastic dust shield covering the DVD drive is easily damaged. Try to start at the four corners and work toward the center.

Edit Step 14  ¶ 

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Edit Step 14  ¶ 

  • Bend the silver metal EMI clip so that it is vertical. This part may fall out after removing the DVD drive.

  • The EMI clip is not essential for reassembling the computer. If the clip falls out, don't worry about putting it back in.

Edit Step 15  ¶ 

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Edit Step 15  ¶ 

  • Turn the G4 over.

  • Disconnect both orange ribbon cables from the logic board using a spudger or the tip of your finger.

Edit Step 16  ¶ 

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Edit Step 16  ¶ 

  • Remove the DVD drive by lifting the right edge up and out of the computer.

  • If you have a CD or any other object jammed in your optical drive, we have an optical drive repair guide.

Edit Step 17 Modem  ¶ 

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Edit Step 17 Modem  ¶ 

  • Turn the G4 over.

  • Using a 5 mm nut driver or needle-nose pliers, remove the hex nut from the modem.

Edit Step 18  ¶ 

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Edit Step 18  ¶ 

  • Lift the modem out by pulling up and to the right.

  • The plastic shielding on the modem may catch on the computer's case. Rocking the modem from side to side will help free the modem.

Edit Step 19  ¶ 

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Edit Step 19  ¶ 

  • Disconnect the connector cable from the modem.

Edit Step 20 PMU  ¶ 

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Edit Step 20 PMU  ¶ 

  • Turn the G4 over.

  • Peel the orange tape away from the three connectors on the PMU board. Leave this tape in place so you can reuse it when reassembling the G4.

  • Disconnect the two orange cables and one multicolored cable from the PMU.

Edit Step 21  ¶ 

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Edit Step 21  ¶ 

  • Lift up on the silver metal clip to free the PMU from the casing.

  • Remove the PMU rotating it clockwise and pulling up.

Edit Step 22  ¶ 

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Edit Step 22  ¶ 

  • Your laptop should look approximately like this.

Edit Step 23 Logic Board  ¶ 

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Edit Step 23 Logic Board  ¶ 

  • Turn the G4 over and rest it on a soft cloth.

  • Disconnect the multicolored fan connector and battery connector from the logic board.

  • Disconnect the orange PC card cage connector from the logic board.

Edit Step 24  ¶ 

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Edit Step 24  ¶ 

  • Remove the single T8 Torx screw located next to the PC Card cage.

Edit Step 25  ¶ 

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Edit Step 25  ¶ 

  • Turn the G4 over.

  • Remove the two T8 Torx screws from the middle of the logic board.

Edit Step 26  ¶ 

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Edit Step 26  ¶ 

  • Disconnect the four indicated connectors from the logic board, removing tape as necessary.

Edit Step 27  ¶ 

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Edit Step 27  ¶ 

  • Carefully lift the logic board up and pull it away from you. The logic board may catch on the back panel ports liner. If this occurs, use a spudger or non-metal tool to free the logic board.

  • This step requires some force, but if the logic board will not come up, make sure you have removed all screws and connectors necessary.

  • Remove the logic board from the computer.

Edit Step 28  ¶ 

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Edit Step 28  ¶ 

  • Your laptop should look approximately like this.

Edit Step 29 PC Card Cage  ¶ 

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Edit Step 29 PC Card Cage  ¶ 

  • Remove the two T8 Torx screws that secure the PC Card cage.

Edit Step 30  ¶ 

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Edit Step 30  ¶ 

  • Remove the PC Card cage by pulling it to the right and twisting slightly toward you.

Edit Step 31 Display  ¶ 

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Edit Step 31 Display  ¶ 

  • Performing the following steps incorrectly can easily damage the display and render it inoperable. The multicolor display data cable is especially fragile.

  • Position the display at a 45 degree angle and rest the computer on a cloth with the back panel ports facing up. Remove the two T8 Torx screws from each clutch cover.

Edit Step 32  ¶ 

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Edit Step 32  ¶ 

  • Close the display and pull off both clutch covers. You can use a non-metal flathead screwdriver if the clutch covers do not come off easily.

Edit Step 33  ¶ 

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Edit Step 33  ¶ 

  • Open the display to a 90 degree angle. Rest the trackpad face down on the work surface and allow the display to hang over the edge. If possible, adjust your chair or work surface height so the display will rest on your legs and the upper case will lie flat on the work surface. If you cannot make this adjustment, you can remove the display with the screen closed. We recommend removing the display with the screen open in order to avoid changing the position of the hinges once the display has been removed.

Edit Step 34  ¶ 

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Edit Step 34  ¶ 

  • Remove the four Phillips screws which fasten the display to the upper case.

  • The screw closest to the display data cable has a tapered head.

Edit Step 35  ¶ 

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Edit Step 35  ¶ 

  • Lift up the metal brackets on either side of the upper case.

  • Disconnect the inverter cable and carefully thread it through the slot in the upper case.

Edit Step 36  ¶ 

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Edit Step 36  ¶ 

  • Carefully thread the display and backlight cables individually through the slot in the upper case. Be very careful with the display cable and it is easily damaged.

  • Remove the display assembly.

Edit Step 37  ¶ 

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Edit Step 37  ¶ 

  • Your laptop should look approximately like this.

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

For more information, check out the PowerBook G4 Titanium Mercury device page.

Required Tools

5mm Nut Driver

$9.95 · 9 In stock

Phillips #00 Screwdriver

$5.95 · 50+ In stock

TR8 Torx Security Screwdriver

$4.95 · 50+ In stock

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