LG LG-P350 - Q Coin Motor

4. TROUBLE SHOOTING
- 138 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

ͽ͸ͶͺΟΥΖΣΟΒΝΆΤΖ΀ΟΝΪ

4.17 Q coin Motor
Q coin Motor is worked as below :
touch touch-window Î Vibration feedback
U601 : Used the PWM pulse
Measurement
VREG_MOTOR_3.3V(TP1)
MOTOR_P(TP2) / MOTOR_N(TP3)
LIN_PWM_FREQ(TP4)
TP1, TP2 is OK?
Yes
No
TP3 is 3.3V?
TP4 is working?
START
Check SW
Change the
Q coin Motor
Yes
No
Reboot
Check an U602 SMT status by X-ray, Exchange it
Work well?
Yes
No
END
Measurement
VREG_MOTOR_3.3V(TP1)
MOTOR_P(TP2) / MOTOR_N(TP3)
LIN_PWM_FREQ(TP4)