HP OmniBook 900 Service Manual (EN)

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Notice In a continuing effort to improve the quality of our products, technical and environmental information in this document is subject to change without notice. This manual and any examples contained herein are provided “as is” and are subject to change without notice. Hewlett-Packard Company makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard Co. shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing, performance, or use of this manual or the examples herein.

Consumer transactions in Australia and the United Kingdom: The above disclaimers and limitations shall not apply to Consumer transactions in Australia and the United Kingdom and shall not affect the statutory rights of Consumers. © Copyright Hewlett-Packard Company 1999. All rights reserved. Reproduction, adaptation, or translation of this manual is prohibited without prior written permission of Hewlett-Packard Company, except as allowed under the copyright laws. The programs that control this product are copyrighted and all rights are reserved. Reproduction, adaptation, or translation of those programs without prior written permission of Hewlett-Packard Co. is also prohibited.

Portions of the programs that control this product may also be copyrighted by Microsoft Corporation, SystemSoft Corp., Crystal Semiconductor Corporation, Phoenix Technologies, Ltd., ATI Technologies Inc., and NeoMagic, Inc. See the individual programs for additional copyright notices. Microsoft, MS, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft Corporation. Pentium and the Intel Inside logo are U.S. registered trademarks and MMX is a U.S. trademark of Intel Corporation. TrackPoint is a U.S. registered trademark of International Business Machines. All certifications may not be completed at product introduction. Check with your HP reseller for certification status.

This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final delivery to the buyer. Hewlett-Packard Company Mobile Computing Division 19310 Pruneridge Ave. Cupertino, CA 95014, U.S.A. Edition History Edition 1........................ January 1999 Edition 2.................... December 1999 ii HP OmniBook 900

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Contents 1. Product Information ..................................................................................................1-1 Features and Operation................................................................................................................. 1-3 Turning the OmniBook On and Off....................................................................................... 1-4 Checking the Status of the OmniBook................................................................................... 1-5 Using Fn Hot Keys.................................................................................................................

1-6 Resetting the OmniBook........................................................................................................ 1-6 System Resources .................................................................................................................. 1-7 Specifications................................................................................................................................ 1-9 Internal Design............................................................................................................................ 1-13 2.

Removal and Replacement ........................................................................................2-1 Removing the Battery (User-Replaceable) ................................................................................... 2-3 Removing a RAM Board (User-Replaceable).............................................................................. 2-5 Removing the Hard Disk Drive (User-Replaceable) .................................................................... 2-6 Replacing Small Parts (User-Replaceable)...................................................................................

2-9 Removing the LCD Module (HP Authorized Service Providers Only)...................................... 2-10 Removing the Keyboard (HP Authorized Service Providers Only) ........................................... 2-12 Removing the CPU Module (HP Authorized Service Providers Only)...................................... 2-14 Removing the Display Assembly (HP Authorized Service Providers Only).............................. 2-16 Removing the Top Case (HP Authorized Service Providers Only)............................................ 2-18 Removing the Motherboard or Bottom Case (HP Authorized Service Providers Only)............

2-20 Removing the BIOS IC (HP Authorized Service Providers Only)............................................. 2-24 Removing Other Components (HP Authorized Service Providers Only)................................... 2-26 3. Troubleshooting and Diagnostics..............................................................................3-1 Troubleshooting............................................................................................................................ 3-2 Troubleshooting the Problem.................................................................................................

3-2 Verifying the Repair .............................................................................................................. 3-3 Suggestions for Troubleshooting........................................................................................... 3-4 Diagnostic Tools......................................................................................................................... 3-12 OmniBook Diagnostic Program........................................................................................... 3-12 Power-On Self-Test .............................................................................................................

3-18 Sycard PCCtest 450 CardBus Card (Optional).................................................................... 3-21 Desktop Management Interface (DMI)................................................................................ 3-22 BIOS Setup Utility............................................................................................................... 3-24 4. Replaceable Parts .......................................................................................................4-1 5.

Reference Information...............................................................................................5-1 Password Removal Policy ............................................................................................................ 5-1 Hewlett-Packard Display Quality Statement ................................................................................ 5-2 Obsolete Parts............................................................................................................................... 5-5 HP OmniBook 900 iii

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Figures Figure 1-1. OmniBook - Front View....................................................................................................1-3 Figure 1-2. OmniBook - Side View .....................................................................................................1-3 Figure 1-3. OmniBook - Rear View.....................................................................................................1-3 Figure 1-4. Replaceable Module Diagram .........................................................................................1-13 Figure 2-1.

Removing the Battery........................................................................................................2-3 Figure 2-2. Installing a Battery Panel...................................................................................................2-4 Figure 2-3. Removing a RAM Board...................................................................................................2-6 Figure 2-4. Removing the Hard Disk Drive .........................................................................................2-7 Figure 2-5. Installing a Hard Drive in the Cover..................................................................................2-7 Figure 2-6.

Removing the LCD Module ............................................................................................2-11 Figure 2-7. Removing the Keyboard ..................................................................................................2-13 Figure 2-8. Removing the CPU Module.............................................................................................2-15 Figure 2-9. Removing the Display Assembly.....................................................................................2-17 Figure 2-10. Removing the Top Case.................................................................................................2-19 Figure 2-11.

Removing the Motherboard...........................................................................................2-21 Figure 2-12. Installing PCMCIA Doors.............................................................................................2-23 Figure 2-13. Example of Serial Number Label ..................................................................................2-24 Figure 2-14. Removing the BIOS IC..................................................................................................2-25 Figure 3-1. Basic Troubleshooting Steps .............................................................................................3-2 Figure 3-2.

OmniBook Diagnostic Screens — Basic and Advanced.................................................3-12 Figure 3-3. Serial and Parallel Loopback Connectors........................................................................3-14 Figure 4-1. Exploded View ..................................................................................................................4-2 Figure 4-2. Display Components..........................................................................................................4-6 Tables Table 1-1. OmniBook 900 Models.......................................................................................................1-1 Table 1-2.

Product Comparisons..........................................................................................................1-2 Table 1-3. Activating Power Modes.....................................................................................................1-4 Table 1-4. Main Status Lights (Motherboard)......................................................................................1-5 Table 1-5. Keyboard Status Lights (Motherboard)...............................................................................1-5 Table 1-6. Fn Hot Keys ........................................................................................................................1-6 Table 1-7.

System Interrupts ................................................................................................................1-7 Table 1-8. System Memory ..................................................................................................................1-7 Table 1-9. System Input/Output Addresses (100-3FF).........................................................................1-8 Table 1-10. DMA Channels .................................................................................................................1-8 Table 1-11. OmniBook 900 Specifications ..........................................................................................1-9 Table 1-12.

OmniBook 900 Accessories............................................................................................1-11 Table 1-13. Functional Structure........................................................................................................1-14 Table 2-1. Removal Cross-Reference...................................................................................................2-1 Table 2-2. Required Equipment ...........................................................................................................2-2 Table 2-3. Recommended Screw Torques............................................................................................2-2 Table 2-4.

RAM Board Replacement Part Numbers............................................................................2-5 Table 2-5. Hard Disk Drive Replacement Part Numbers.....................................................................2-6 Table 2-6. Replacing Small Parts (User-Replaceable).........................................................................2-9 Table 2-7. Display Component Compatibility....................................................................................2-10 Table 2-8. Removing Display Components .......................................................................................2-27 Table 3-1.

Scope of Diagnostic Tools..................................................................................................3-4 Table 3-2. Troubleshooting Suggestions..............................................................................................3-5 Table 3-3. OmniBook Diagnostic Error Codes..................................................................................3-14 iv HP OmniBook 900

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