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Compaq Presario CQ40 Notebook PC
Maintenance and Service Guide

© Copyright 2008 Hewlett-Packard Development Company, L.P. Athlon, Sempron, and Turion are trademarks of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Intel and Core are trademarks of Intel Corporation in the U.S. 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 anadditional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. First Edition: August 2008 Document Part Number: 468153-001

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 ahard, 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 definedby 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 Lights ................................................................................................................................... 7 Buttons and speakers .......................................................................................................... 8 Keys................................................................................................................................... 10 Display ............................................................................................................................... 11 Wireless antennae (select models only) ............................................................................ 12 Front components.............................................................................................................................. 13 Left-side components ......................................................................................................................... 14 Rear component................................................................................................................................. 15 Right-side components ....................................................................................................................... 15 Bottom components ........................................................................................................................... 16 3 Illustrated parts catalog Serial number location........................................................................................................................ 17 Computer major components ............................................................................................................. 18 Display assembly components ........................................................................................................... 24 Plastics Kit...