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HP 550 Notebook PC
Maintenance and Service Guide
© Copyright 2008 Hewlett-Packard
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 of Intel Corporation
in the United States and other countries.
Microsoft, Windows, and Windows Vista are
U.S. registered trademarks of Microsoft
Corporation. SD Logo is a trademark of its
proprietor.
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.
Second Edition: December 2008
First Edition: August 2008
Document Part Number: 488361–002
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).
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Safety warning notice
Table of contents
1 Product description
2 External component identification
Top components ................................................................................................................................... 6
TouchPad ............................................................................................................................ 6
Buttons, lights, and speaker ................................................................................................ 7
Keys ..................................................................................................................................... 8
Front components ................................................................................................................................ 9
Right-side components ....................................................................................................................... 10
Left-side components ......................................................................................................................... 11
Bottom components ........................................................................................................................... 12
Wireless antennae (select models only) ............................................................................................. 13
3 Illustrated parts catalog
Serial number location ........................................................................................................................ 14
Computer major components ............................................................................................................. 15
Plastics Kit .......................................................................................................................................... 21
Cable Kit ............................................................................................................................................. 22
Mass storage devices ......................................................................................................................... 23
Miscellaneous parts ............................................................................................................................ 24
Sequential part number listing ............................................................................................................ 25
4 Removal and replacement procedures
Preliminary replacement requirements ............................................................................................... 31
Tools required .................................................................................................................... 31
Service considerations ....................................................................................................... 31
Plastic parts ....................................................................................................... 31
Cables and connectors ..................................................................................... 32
Drive handling ................................................................................................... 32
Grounding guidelines ......................................................................................................... 33
Electrostatic discharge damage ........................................................................ 33
Packaging and transporting guidelines ............................................. 34
Workstation guidelines ..................................................................... 34
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