Acer Aspire 1670 Service Manual page 66

Removing the Main Board Support Bracket
1. Remove four screws that secure the main board support bracket.
2. Then remove the main board support bracket from the main board
Disassemble the Main Board
1. Remove night screws that secure the main board.
2. Remove two screws on the rear that secure the VGA connector.
3. Press the lower case outward a little bit and remove the main board from the lower case.
Disassemble the system fan
1. Remove the Secondary fan cable from the main board.
2. Remove the main fan cable from the main board.
3. Remove four screws that secure the main and secondary fan cover.
4. Remove the secondary fan cover.
5. Remove the main fan cover.
Chapter 3 60