hp 520.pdf

HP 520 Notebook PC

Maintenance and Service Guide

Development Company, L.P.

Bluetooth is a trademark owned by its

proprietor and used by Hewlett-Packard

Company under license. Intel, Core, and

Celeron are trademarks or registered

trademarks of Intel Corporation or its

subsidiaries in the United States and other

countries. Java is a U.S. trademark of Sun

Microsystems, Inc. Microsoft, Windows, and

Windows Vista are either trademarks or

registered trademarks of Microsoft

Corporation in the United States and/or other

countries.

The information contained herein is subject to

change without notice. The only warranties

for HP products and services are set forth in

the express warranty statements

accompanying such products and services.

Nothing herein should be construed as

constituting an additional warranty. HP shall

not be liable for technical or editorial errors

or omissions contained herein.

First Edition: April 2007

Document Part Number: 446950-001

Safety warning notice

WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not

place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a

hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft

surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact

the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC

adapter comply with the user-accessible surface temperature limits defined by the International Standard

for Safety of Information Technology Equipment (IEC 60950).

iii

iv Safety warning notice

Table of contents

1 Product description

2 External component identification

Front components ..................................................................................................................... 5

Top components ...................................................................................................................... 6

Buttons and lights ...................................................................................................... 6

Keys ........................................................................................................................ 7

Pointing devices ........................................................................................................ 8

Right-side components .............................................................................................................. 9

Left-side components ................................................................................................................. 9

Bottom components ................................................................................................................ 10

3 Illustrated parts catalog

Serial number location ............................................................................................................ 11

Computer major components ................................................................................................... 12

Display assembly components ................................................................................................. 16

Plastics/Hardware Kit ............................................................................................................. 17

Mass storage devices ............................................................................................................. 18

Miscellaneous parts ................................................................................................................ 19

Sequential part number listing .................................................................................................. 20

4 Removal and replacement procedures

Preliminary replacement requirements ....................................................................................... 25

Tools required ......................................................................................................... 25

Service considerations ............................................................................................. 25

Plastic parts ............................................................................................. 25

Cables and connectors ............................................................................. 25

Drive handling ......................................................................................... 26

Grounding guidelines .............................................................................................. 26

Electrostatic discharge damage .................................................................. 26

Packaging and transporting guidelines ........................................ 27

Workstation guidelines .............................................................. 27

Equipment guidelines ................................................................. 28

Unknown user password .......................................................................................... 29

Component replacement procedures ........................................................................................ 30

Serial number ......................................................................................................... 30

Battery ................................................................................................................... 31

Hard drive ............................................................................................................. 32

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