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b Maintenance and Service Guide Compaq 800 and Compaq Presario 3000 Series Mobile PC Document Part Number: 307503-001 November 2002 This guide is a troubleshooting reference used for maintaining and servicing the notebook. It provides comprehensive information on identifying notebook features, components, and spare parts, troubleshooting notebook problems, and performing notebook disassembly procedures. © 2002 Compaq Information Technologies Group, L.P. Compaq, the Compaq logo, and Presario are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and/or other countries. Intel, Pentium, and SpeedStep are trademarks of the Intel Corporation in the U.S. and/or other countries. All other product names mentioned herein may be trademarks of their respective companies. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided "as is" without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty. Maintenance and Service Guide First Edition November 2002 Document Part Number: 307503-001 Contents 1 Product Description 1.1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­2 1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­4 1.3 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . . 1­6 1.4 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . 1­7 1.5 Notebook External Components . . . . . . . . . . . . . . . . 1­8 1.6 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­18 2 Troubleshooting 2.1 Computer Setup and Diagnostics Utilities . . . . . . . . . 2­1 Selecting Computer Setup or Compaq Diagnostics . 2­1 Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2­3 Selecting from the Security Menu . . . . . . . . . . . . . . . 2­4 Selecting from the Advanced Menu . . . . . . . . . . . . . 2­5 2.2 Using Compaq Diagnostics . . . . . . . . . . . . . . . . . . . . 2­7 Obtaining, Saving, or Printing Configuration Information. . . . . . . . . . . . . . . . . . . . . 2­7 Obtaining, Saving, or Printing Diagnostic Test Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2­8 2.3 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . 2­10 3 Illustrated Parts Catalog 3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3­1 3.2 Notebook System Major Components . . . . . . . . . . . . 3­2 3.3 Miscellaneous Plastics/Hardware Kit Components . . 3­8 3.4 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3­10 Maintenance and Service Guide iii Contents 4 Removal and Replacement Prelimi