Service Manual

Replacing the I/O board

NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow

the steps in Before working inside your computer. After working inside your computer, follow the instructions in After

working inside your computer. For more safety best practices, see the Regulatory Compliance home page at

www.dell.com/regulatory_compliance.

Topics:

• Procedure

• Post-requisites

Procedure

1. Place the I/O board on the palm-rest assembly.

2. Align the screw hole on the I/O board with the screw hole on the palm-rest assembly.

3. Replace the two screws (M2x3.5) that secure the I/O board to the palm-rest assembly.

4. Connect the power and volume-buttons board-cable and coin-cell battery-cable to the I/O board.

5. Connect the I/O-board cable to the I/O board.

6. Adhere the tape that secures the power and volume-buttons board-cable to the palm-rest assembly.

7. Adhere the tape that secures the I/O-board cable to the I/O board.

Post-requisites

1. Replace the wireless card.

2. Replace the battery.

3. Replace the base cover.

Replacing the I/O board 49