LG GW620 - Vibrators

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Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
4.18 VIBRATORS
4. 18.1 LINEAR MOTOR
Linear Motor signal’s path are MSM7200A Æ LCD_FPCB -> LCD Module
U11 uses the PWM pulse.
Start
Work well?
TP3 (C24) is 3V?
TP4 (U11) is high?
TP5 is working?
End
Check an U11 SMT
status by X-ray,
Exchange it
YES
No
NO
YES
Reboot
Check SW
Output of U11 OK?
(TP1, TP2)
Check the Flash
FPCB
YES
No
TP4
TP5
TP2 (L18)
TP1 (L42)
TP3
(C14)