Battery, AC adapter, secondary battery Plug-in module, hard disk drive * *Only if removing the top case, motherboard, or bottom case. Power button panel Keyboard If removing only display assembly or hinge covers Heatsink (with fan) CPU module CMOS battery Display assembly Hinge covers Rear antenna PCA (wireless only) PCMCIA socket Top case Display interface PCA Power supply PCA (OB 6000 only) Volume PCA Mini-PCI panel Vent panel (Omnibook 6000 only) Sound/IR panel Docking doors PCMCIA doors Speaker assembly (OB 6100 only) Motherboard or bottom case Front antenna PCA (wireless only) Mini-PCI card #2 (OB 6100 only) Figure 2-1. Disassembly Flow HP Omnibook 6000/6100 Removal and Replacement 2-3