Vibrator - LG KB770 Service Manual

4. TROUBLE SHOOTING

4.21 Vibrator

Vibrator is operate when DC motor driver(audio amp) is enabled.
Start
Operate the Vibrator
NO
VREG_VIB_3.0V(C701)
check battery
is above 2.5V?
YES
NO
Change the PMIC/Main
MOTOR_EN (R703) is
board
above 1.8V?
YES
Change vibrator
C801
R703
[ MAIN Bottom (near Vibrator connector) ]
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