Acer Aspire S5-391 Service Manual page 143

Detach the adhesive securing the mylar to the screw hole.
4.
Disconnect the audio board cable connector and remove the cable from the guides on the
5.
lower case.
5-39
Figure 5-53. Detaching the Mylar Adhesive
Figure 5-54. Disconnecting the Audio Board Cable
Service and Maintenance