HP ProBook 4440s, Руководство по техническому обслуживанию и ремонту

Страница: 63 / 174

Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 95 screws and screw locks, in 15 different sizes, that must be removed,
replaced, or loosened when servicing the computer. Make special note of each screw and screw lock
size and location during removal and replacement.
Battery
Description Spare part number
9-cell, 93 WHr, 2.8 Ah Li-ion battery 633809-001
6-cell, 47 WHr, 2.2 Ah Li-ion battery 633805-001
Before disassembling the computer, 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.
Remove the battery:
1. Position the computer upside-down on a flat surface.
2. Slide the battery release latches (1) to release the battery.
NOTE: You can slide the battery release latches simultaneously or one at a time.
Component replacement procedures 55