HP 15 Notebook PC - Maintenance and Service Guide

Reverse this procedure to reassemble and install the hard drive.
Power button board
Description Spare part number
Power button board (includes cable) 776780-001
Before removing the power button board, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 28), and then remove the following components:
a. Optical drive (see Optical drive on page 33).
b. Service door (see Service door on page 29).
c. WLAN module (see WLAN module on page 31).
d. Memory module (see Memory module on page 30).
e. Keyboard (see Keyboard on page 38).
f. Top cover (see Top cover on page 40).
Remove the power button board:
1. Turn the top cover upside down, with the front toward you.
2. Remove the Phillips M2.5×2.5 screw (1) that secures the power button board to the top cover.
Component replacement procedures 47