HP G72-b61NR HP G72 Notebook PC - Maintenance and Service Guide - Page 71
Power button board, Remove the power button board
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Power button board Description Power button board Spare part number 616495-001 Before removing the power button board: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see Battery on page 42). 5. Remove the following components: a. Hard drive (see Hard drive on page 43) b. Optical drive (see Optical drive on page 46) c. Keyboard (see Keyboard on page 54) d. Top cover (see Top cover on page 57) Remove the power button board: 1. Turn the top cover upside down with the rear edge toward you. 2. Remove the Phillips PM2.0×3.0 screw (1) that secures the power button board to the top cover. 3. Lift up and remove the power button board (2). Reverse this procedure to install the power button board. ENWW Component replacement procedures 61