HP 540 HP 540 Notebook PC and HP 541 Notebook PC - Maintenance and Service Gui - Page 57

Switch cover and keyboard, Two Torx T8M2.5×3.0 broad-head screws

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Switch cover and keyboard Description Switch cover (includes button board and cable) Keyboards for use in the following countries or regions: Brazil 499999-201 Taiwan Japan 499999-291 Thailand Korea 499999-AD1 The United States Latin America 499999-161 spare part numbers 500001-001 499999-AB1 499999-281 499999-001 Before removing the switch cover and keyboard, 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 37). Remove the switch cover and keyboard: 1. Remove the following screws: (1) Two slotted Torx ST8M2.5×7.0 screws (2) Two Torx T8M2.5×3.0 broad-head screws Component replacement procedures 47

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Switch cover and keyboard
Description
spare part numbers
Switch cover (includes button board and cable)
500001-001
Keyboards for use in the following countries or regions:
Brazil
499999-201
Taiwan
499999-AB1
Japan
499999-291
Thailand
499999-281
Korea
499999-AD1
The United States
499999-001
Latin America
499999–161
Before removing the switch cover and keyboard, 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
37
).
Remove the switch cover and keyboard:
1.
Remove the following screws:
(1)
Two slotted Torx ST8M2.5×7.0 screws
(2)
Two Torx T8M2.5×3.0 broad-head screws
Component replacement procedures
47