Dc Motor Trouble Shooting - LG -P715 Service Manual

4.20 DC Motor Trouble Shooting

Vibrator is worked as below
Vibrator is not working well
TP1 is same voltage as VBAT?
Measurement
VBAT
VIB_DRV_N
LGE Internal Use Only
START
Yes
Voltage is almost 3V
between TP1 & TP2
Yes
Change the motor,
working well?
Yes
END
No
Change the Main board
No
Change the PMIC
No
Change the Main board
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4. TROUBLE SHOOTING
Only for training and service purposes