Acer Aspire 1642 Disassembly GuideContentsIntroduction ................................................................................................................................................ 3What you will need ................................................................................................................................. 3Removing/Replacing the CD Tray................................................................................................................ 4Step 1 – Remove the Battery .................................................................................................................. 4Step 2 – Remove top cover ..................................................................................................................... 4Step 3 – Removing the Keyboard ............................................................................................................ 5Step 4 – Remove the CD/DVD tray retaining screw ................................................................................ 6Step 5 – Sliding out the CD/DVD tray ...................................................................................................... 6Step 6 – Removing CD/DVD tray support ................................................................................................ 7Step 7 -Taking the CD/DVD tray apart..................................................................................................... 8Cleaning the Cooling Fan .......................................................................................................................... 10Step 1 – Undo 2 screws, and remove a third ........................................................................................ 10Step 2 – Remove Cover ......................................................................................................................... 10Step 3 –Remove fan cover screws ........................................................................................................ 10Step 4 – Time to Clean .......................................................................................................................... 11Accessing the Wireless Module ................................................................................................................ 12Step 1 – Undo Cover Screws ................................................................................................................. 12Step 2 – Remove Cover ......................................................................................................................... 12Step 3 – The Wireless Module .............................................................................................................. 13Changing The RAM.................................................................................................................................... 14Step 1 – Undo Cover Screws ................................................................................................................. 14Step 2 – Remove Cover ......................................................................................................................... 14Step 3 – Under the Cover ...................................................................................................................... 15