This procedure requires the following tools:

  • 0 Phillips screwdriver
  • Black stick (or other nonconductive nylon or plastic flat-blade tool)

Part Location

Preliminary Steps

Before you begin, remove the following:

  • Battery
  • Top case


Note: There are two different keyboards and top cases used with this computer, depending upon the configuration, either backlit or non-backlit.

Important: Verify that the correct replacement keyboard is ordered, and/or top case if replacing. The keyboards are not interchangeable, and damage could result.

The top case for the backlit keyboard has the fiber optics and connector (right side). The keyboard for the backlit top case has icons on the F8 to F10 keys for the backlighting feature.

The top case for the non-backlit keyboard does not have the fiber optics and connector. The keyboard for the non-backlit top case does not have icons on the F8 to F10 keys.

1. Turn the top case over and carefully remove the black insulator film. If new film was not provided with the replacement part, reserve the film for reinstallation.

Important: If the computer has the fiber optics for the optional backlit keyboard, do not remove the black insulator around the optics and cables.

Important: If the computer has the fiber optics for the optional backlit keyboard, do not remove the black insulator around the optics and cables.

2. Gently pull up on the keyboard flex cable to release the adhesive at its base.

3. Remove the thirteen screws.

Note: The non-backlit top case shown.

4. Use the pointed end of a black stick and push through the screw hole at the top left side until the keyboard begins to separate from the top case. Work your way along through successive screw holes until a black stick can be inserted under the keyboard from the top.

Important: To avoid damaging the screw boss threads, do not use a metal tool.

5. Carefully lift up the keyboard and guide out its flex cable (shown below). Important: Be careful not to strain or tear the keyboard flex cable.

6. If adhesive residue is left by the keyboard in the keyboard bay, and on the fiber optics (if present), carefully rub it off.

Replacement Procedure

  1. To install the keyboard or replacement keyboard, insert its flex cable through the slot in the top case and rest the bottom of the keyboard evenly along the bottom edge of the keyboard bay.
  2. Remove any protective cover from adhesive strips on the keyboard. While keeping the bottom of the keyboard flush against the bottom of the keyboard bay, rotate the keyboard into place so that the screw bosses fit into the boss holes.

3. Use a black stick to guide the sides of the keyboard into the keyboard well.

4. Install the keyboard screws in the order shown.

5. Install new or reinstall the insulator film. Remove any protective cover from the adhesive and fit the small round hole in the film over the raised screw boss (one on each side) to start the alignment. Avoid wrinkles or bulges.

On the power button side, run your finger along the film where it folds over the edge of the keyboard bay, to help secure the adhesive and prevent light leakage.

Important: The film must be installed and in the same location to protect against contact and electrical shorting in certain areas and to allow contact with the EMI spring on the logic board.

6. To secure the keyboard flex cable, remove any protective cover on the adhesive at the base of the cable. Pull the cable up straight and then forward to lay it flat across the the keyboard bay. Run your finger along the base of the flex cable to secure the adhesive.

  1. Reassemble the computer.
  2. Testing the computer should include powering on, checking the keyboard and trackpad function.

If the computer has the optional keyboard backlight feature, operate the computer in a darkened room to check for keyboard backlight function, and light leakage around the perimeter of the keyboard, speaker grill openings and side ports.

Was this article helpful?

0 0

Post a comment