Preparing The Computer For Disassembly - HP Compaq NX4820 Maintenance And Service Manual

5.3 Preparing the Computer for
Disassembly
Before you begin any removal or installation procedures:
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 cord.
12-cell, 8.8-AHr
6-cell, 4.4-AHr
6-cell, 4.0-AHr
4. Remove the battery pack by following these steps:
a. Turn the computer upside down with the front panel
Maintenance and Service Guide
Battery Pack Spare Part Number Information
toward you.
Removal and Replacement Procedures
367760-001
and
396603-001
367759-001
and
398832-001
398065-001
and
396602-001
5–5