LG GT350 - Vibrator Trouble

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Only for training and service purposes
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4. TROUBLE SHOOTING
LG Electronics 75/115 LGE Property
4.8 Vibrator trouble
Check Points
-Vibrator soldering
-IC is working correct
Chec
k
PWM Signal
TP1
TP2
TP3
TP4
TP1
R513
TP4
VA502
TP3
VA503
TP2
R501
DMJBRN1036CM
SJMY0008510
VB501
2
1
0
R501
0R502
SM100
EUSY0200803
U502
9
54
63
72
81
EN V1
SIN VSS
TYPE VCC
OCT V2
D
NGP
10K
R510
0
R511
1u
C504
3.9n
C505
240K
R512
10K
R513
VA502VA503
R531 0
V
IB_PWM
VIB_EN
2V9_VAUX
LINEAR MOTOR DRIVER
EUSY0200803
(1%)
CLOSE TO CONN
Rev.B
TP2
TP1
TP3
TP4