Acer Aspire S3-391 Service Manual page 129

5. Place the left speaker in its slot in the upper case.
Figure 3-125. Left Speaker
6. Secure the left speaker to the upper case using two screws.
Figure 3-126. Left Speaker Screws
Table 3-126. Screws
Step
Left Speaker Module Reassembly
Machine Maintenance
Screw
M1.4 x L3
Quantity Screw Type
2
3-75