Acer Aspire 4820T Service Guide - Page 55

External Module Disassembly Process IMPORTANT:The outside housing and color may vary from the mass produced model. External Modules Disassembly Flowchart The flowchart below gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the main board, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Turn off system and peripherals power Disconnect power and signal cables from system Remove Battery Remove Dummy Card Remove Lower Covers Screw List Step ODD Module ODD Bracket WLAN Module HDD Carrier Remove HDD . Screw M2.5*4L M2.0*3L M2.0*3L M3.0*4L Remove DIMM Remove WLAN Board Quantity 1 2 1 2 Part No. 86.PSR07.001 86.PSR07.003 86.PSR07.003 86.N1407.007 Chapter 3 45