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iv HP OmniBook 900
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