Acer 4740Z Laptop User Manual


 
Chapter 3 55
Removing the Mainboard
1. Perform the “Removing the Bluetooth Module” procedure on page 54.
2. Disconnect the USB board cable from its mainboard connector.
3. Remove the screw (D) securing the mainboard.
IMPORTANT: A circuit board that is >10 cm² has been highlighted with the yellow square as above
image shows. Follow local regulations for disposing this type of circuit board.
The CMOS battery has been highlighted with a yellow circle in the previous image. Detach the RTC battery
and follow the local regulations for disposing it.
4. Carefully pull the mainboard out of the base enclosure, then flip it over.
Type Quantity Color Torque Part Number
M2.5 x L6 4 Black 1.6 kgf-cm 86.00E33.736