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Chapter 3 Machine Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. To disassemble the computer, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge Small Philips screw driver Philips screwdriver Plastic flat head screw driver Tweezers NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components. When you remove the stripe cover, please be careful not to scrape the cover. Chapter 3 45 General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3. Remove the battery pack. NOTE: The screws used to secure bottom case and upper case are more than one type. Please group same type of screw together as you disassemble the system for service purpose. The image below is for your reference. Please pay attention to the explanation below. IO Bezel Battery The screws that secure heatsink cover, MIni PCI cover and HDD cover are with the covers. There is no need to worry about mix them up. However, please notice that you have to group the screws on the following locations together. There are twenty screws holding the bottom case to upper case but some screws are inside the system. You may have to remove the HDD, the heatsink cover to see these screws. Mini PCI cover here also called RAM/Wireless cover. Screw Type Location Quantity M2.5*6 Bottom case and IO bezel 14 (Part number: 86.T23V7.010) (hightlight with yellow circle) 46 Chapter 3 Screw Type Location Quantity M2.5*6 Remove the IO bezel then 2 (Part number: 86.T23V7.010) you will see. M2.5*6 Remove the heatsink cover 1 (Part number: 86.T23V7.010) then you will see. M2.5*6 Remove the HDD cover then 1 (Part number: 86.T23V7.010) you will see. M2.5*3 Detach the HDD module 1 (Part number: 86.T25V7.012) then you will see. M2.5*3 Remove the battery then you 1