HP LJ476UT User Manual - Page 86

Lid switch, Remove the lid switch

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Lid switch Description Lid switch for use in 4530s models Lid switch for use in 4730s models Spare part number 646289-001 646290-001 Before removing the lid switch, 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 47). 5. Remove the following components: a. Bottom door (see Bottom door on page 49). b. Optical drive (see Optical drive on page 50) c. Keyboard (see Keyboard on page 63) d. Top cover (see Top cover on page 65) Remove the lid switch: 1. Position the computer upright with the front toward you. 2. Lift the system board connector latch(1), and then disconnect the cable (2). 3. Remove the tape (3) that secures the board to the computer. 78 Chapter 4 Removal and replacement procedures

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Lid switch
Description
Spare part number
Lid switch for use in 4530s models
646289-001
Lid switch for use in 4730s models
646290-001
Before removing the lid switch, 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
47
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
49
).
b.
Optical drive (see
Optical drive
on page
50
)
c.
Keyboard (see
Keyboard
on page
63
)
d.
Top cover (see
Top cover
on page
65
)
Remove the lid switch:
1.
Position the computer upright with the front toward you.
2.
Lift the system board connector latch
(1)
, and then disconnect the cable
(2)
.
3.
Remove the tape
(3)
that secures the board to the computer.
78
Chapter 4
Removal and replacement procedures