HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 61

Display lid switch module, Disconnect the display lid switch module cable

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Display lid switch module NOTE: The display lid switch module is included in the Cable Kit, spare part number Cable Kit, spare part number 456594-001. Before removing the display lid switch module, 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 38). 5. Remove the keyboard (see Keyboard on page 49). 6. Remove the switch cover (see Switch cover on page 46). Remove the display lid switch module: 1. Disconnect the display lid switch module cable (1) from the system board. 2. Remove the display lid switch module (2) from the clip built into the top cover. 3. Remove the display lid switch module cable from the clips (3) built into the top cover. Reverse this procedure to install the display lid switch module. Component replacement procedures 53

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Display lid switch module
NOTE:
The display lid switch module is included in the Cable Kit, spare part number Cable Kit, spare
part number 456594-001.
Before removing the display lid switch module, 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
38
).
5.
Remove the keyboard (see
Keyboard
on page
49
).
6.
Remove the switch cover (see
Switch cover
on page
46
).
Remove the display lid switch module:
1.
Disconnect the display lid switch module cable
(1)
from the system board.
2.
Remove the display lid switch module
(2)
from the clip built into the top cover.
3.
Remove the display lid switch module cable from the clips
(3)
built into the top cover.
Reverse this procedure to install the display lid switch module.
Component replacement procedures
53