Acer Aspire 4540 Series - Removing the RTC Battery; Replacing the USB Board

108 Chapter 3
Removing the RTC Battery
IMPORTANT: Follow local regulations for disposal of all batteries.
The RTC Battery is soldered to the Mainboard. To replace the battery, solder the new battery to the
connections shown.
Replacing the USB Board
1. Insert the USB Board into the casing, ensuring that the USB Port is accessible through the case.
2. Run the cable along the casing and insert it into the FFC connector.