Lenovo Yoga Book YB1-X91L Hardware Maintenance Manual page 42

Lenovo YOGA BOOK with Windows® Hardware Maintenance Manual
Figure 5. Removal steps of speaker (continued)
Use a screwdriver to remove the black screws from the left and right speaker
boxes, then remove the speaker boxes.
38
Step Screw (quantity)
M1.4*2.5 (4)
1
Color Torque
Black 0.7N