Motorola Moto Z Play Troubleshooting Manual page 97

Speaker Output Circuit
If the speaker output sound include handset voice call rx voice is not functioning,
- Check DC resistance of speaker part between speaker part contacts.
- Inspect physical placement of the L5780, L5781, M5790 and M5791 (See
schematic above)
- Check L5780 and L5781 DC resistance, it should be around 0.13 ohm.
- If there is no problem, check the smart boost IC circuit (See next page)
MOTOROLA CONFIDENTIAL
Speaker part contacts
M5790 and M5791
universal contact
Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE