Vibrator Trouble Shooting - LG D405 Service Manual

3.13 Vibrator Trouble Shooting

Vibrator signal's path is PM8226 -> VB100
DC Motor controlled by PM8226 PMIC_VIB_N voltage level.
Yes
Yes
Yes
LGE Internal Use Only
Start
Disconnect and re-connect
Lower FPCB Connector (CN9400)
Motor vibrate well?
No
Change Motor.
Vibrate is normal?
No
Check Lower FPCB.TP1 to
TP2/TP3 to TP4
Short test. Is it OK?
No
Rework component
TP1(L105), TP3(L106)
Works well?
No
Replace Lower FPCB
End
Yes
- 99 - Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
Replace Lower FPCB
Only for training and service purposes