Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 60

External Module Disassembly Process 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 mainboard, you must first remove the keyboard, then disassemble the inside assembly frame in that order. TURN OFF POWER AND PERIPHERALS Ax4 Bx1 LOWER COVER UNPLUG POWER CABLES Ex1 OPTICAL DISK DRIVE MODULE Cx2 WLAN BOARD DIMM MODULES HARD DISK DRIVE MODULE Fx1 OPTICAL LOCKER BRACKET OPTICAL DISK DRIVE HDD MODULE HARD DISK DRIVE RUBBER ENCLOSURE Dx2 HARD DISK DRIVE BRACKET HARD DISK DRIVE Screw List A B C D E F Screw M2 x L4 M2 x L18 M2 x L3 M3 x L4 M2.5 x L6 M2 x L2.5 Part No. 86.9A552.4R0 86.00G64.720 86.9A552.3R0 86.9A524.4R0 86.00E33.736 86.00F22.722 50 Chapter 3