The corner of a laptop computer case
The Acer 4420 is from the Extensa line of laptop computers that are available from Acer. When you need to replace any of the internal components the casing will need to be removed. Removing the casing will also allow you to see how the components have been installed in the laptop.
Instructions
1. Place the laptop face down on a table or desk and remove the battery. Unplug the power cord from the laptop if it is still attached.
2. Locate the screws that are used to secure the casing. Screws are also used to secure various component covers to the laptop case.
3. Remove all of the screws for the individual component covers. Pull off all of the component covers from the back of the laptop and set them aside.
4. Locate the remaining screws that are used to secure the casing of the laptop and remove them with the screwdriver. There will be about 12 screws remaining in the casing.
5. Lift up on the back casing enclosure to separate it from the body of the laptop.
6. Remove and replace any components that you can access now that the casing has been removed.
Tags: component covers, used secure, Acer 4420, casing will, screws that, screws that used, secure casing