7

Power Button Board

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as a connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery, see "Removing the Battery" on page 13, before working inside the computer.

Removing the Power Button Board

1Follow the instructions in "Before You Begin" on page 9.

2Remove the battery. See "Removing the Battery" on page 13.

3Follow the instructions from step 3 to step 8 in "Removing the Palm-Rest Assembly" on page 25.

4Turn the palm-rest assembly over.

5Slide and remove the power-button board cable through the slot on the palm-rest assembly.

6Remove the screw that secures the power button board to the palm rest.

7Push and release the tabs that secure the power button board to the palm rest.

8Lift the power button board along with its cable away from the palm rest.

Power Button Board

31

Page 31
Image 31
Dell M4040/14-N4050 owner manual Removing the Power Button Board