HP ProBook 6465b Notebook PC - Maintenance and Service Guide

Lid switch
Description Spare part number
Lid switch board (includes cable) 642765-001
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 42).
5. Remove the following components:
a. Remove the bottom door (see
Bottom door on page 49).
b. Hard drive (see
Hard drive on page 54)
c. Optical drive (see
Optical drive on page 50)
d. WLAN module (see
WLAN module on page 60)
e. WWAN module (see
WWAN module on page 58)
f. Fan (see
Fan on page 64)
g. Heat sink (see
Heat sink on page 65)
h. Modem module (see
Modem module on page 63)
i. Keyboard (see
Keyboard on page 68)
j. Bottom cover (see
Bottom cover from top cover on page 71)
Remove the lid switch:
1. Position the computer right-side up, with the front toward you.
78 Chapter 4 Removal and replacement procedures