HP ProBook 4525s HP ProBook 4525s Notebook PC - Maintenance and Service Guide - Page 61

Power button board

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7. Remove the optical drive bracket (2). Reverse this procedure to reassemble and install an optical drive. Power button board Description Switch cover with power button board For use in computers with 15.6-in displays Spare part number 598674-001 Before removing the power button board, follow these steps: 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 unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 45). 5. Remove the switch cover and keyboard (see Switch cover and keyboard on page 46). Component replacement procedures 53

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7.
Remove the optical drive bracket
(2)
.
Reverse this procedure to reassemble and install an optical drive.
Power button board
Description
Spare part number
Switch cover with power button board
For use in computers with 15.6-in displays
598674-001
Before removing the power button board, follow these steps:
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 unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
45
).
5.
Remove the switch cover and keyboard (see
Switch cover and keyboard
on page
46
).
Component replacement procedures
53