Acer AN515-51 Service Manual page 237

Remove the three (3) screws securing the mainboard to the upper case.
2.
Slide the mainboard to release the I/O connectors from their slots and then remove the
3.
mainboard from the upper case.
Service and Maintenance
Figure 5-148. Removing the Screws
Figure 5-149. Removing the Mainboard
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