Acer ASPIRE 5742 Service Manual page 97

6. While holding the lower cover with one hand, separate the mainboard from the lower cover and place it onto
the protective cover.
CAUTION: Do not remove the mainboard completely. The mainboard is still connected to the lower cover.
7. Locate the DC-In cable and disconnect it from the main board connector.
8. Remove the mainboard from the chassis and place it on a clean, flat surface as shown. Locate the Bluetooth
cable connection on the mainboard.
Chapter 3 87