Dell Inspiron 3420 Specifications (SWF/PDF) - Page 31
Power Button Board
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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 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13). 3 Follow the instructions from step 3 to step 8 in "Removing the Palm-Rest Assembly" on page 25. 4 Turn the palm-rest assembly over. 5 Slide and remove the power-button board cable through the slot on the palm-rest assembly. 6 Remove the screw that secures the power button board to the palm rest. 7 Push and release the tabs that secure the power button board to the palm rest. 8 Lift the power button board along with its cable away from the palm rest. Power Button Board 31
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