Motorola Moto X Force Troubleshooting Manual page 36

Loudspeaker
• Verify the impedance of the loudspeaker module is ~8 ohms.
• Lack of mechanical contact should also be checked between the PCB spring contacts and the
loudspeaker module (check for bent/broken/missing pins on PCB spring contacts).
• Make sure L4680 and L4681 are not skewed or damaged.
• Check C4680, C4681, C4682, C4683, C4684, VR4680, and VR4681 for any placement issues.
Moto X Force/DROID Turbo 2
MOTOROLA CONFIDENTIAL
BASEBAND TROUBLESHOOTING GUIDES