Motorola Moto X Force Troubleshooting Manual page 35

Earpiece Speaker (Handset Mode DOWNLINK)
Located near J4600, Main PCB
• Check that the impedance of the earpiece speaker is near 32 ohms, and that the spring contacts are
not bent.
• Check that the earpiece flex is seated properly in the rear housing with no debris on it. You should
also be able to see slight imprints in the gold pads where the speaker spring contacts were touching
the flex; these imprints should be centered - if they are on the edge of the pad, there may be an
alignment issue.
• Check that the J4600 B2B flex connector on the PCB is seated properly with no damage to any pins
on the PCB-side or Flex-side.
• Check C4691, C4692, VR4690 and VR4691 for any placement issues.
MOTOROLA CONFIDENTIAL
On Audio Flex (PADS ONLY)
BASEBAND TROUBLESHOOTING GUIDES
Moto X Force/DROID Turbo 2