Vibrator - LG U970 Service Manual

4. TROUBLE SHOOTING

4.22 Vibrator

MSM6280(U200) GPIO 28 Go to 2.7V . Then MOTOR_PWR- is arrived at ground pass the motor
and Vibrator is operating same time. Otherwise MOTOR_PWR- is open state.
Start
Operate the Vibrator
MOTOR_EN is
2.7V ?
YES
MOTOR_PWR- is
connected
ground ?
YES
Change vibrator
NO
Change the MAIN board or
Check the KEY FPCB
NO
Change the Q701 or Check
the LCD FPCB
MOTOR_PWR-
MOTOR_EN
- 124 -
3
rev.1.2
Q701
2
PMST3904
1
rev.1.1