LG GX500 - Vibrator Trouble

- 87 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 87/143 LGE Property
4.8 Vibrator trouble
Check Points
-Vibrator soldering
-IC is working correct
Figure 4-19. LINEAR MOTOR DRIVER Circuit
Figure 4-20. Vibrator Driver
Check the driver IC(U204) of
sub boarad
100nL204
100nL203
K0
65
122R
TP206
U204
9
54
63
72
81
EN
V1
SIN VSS
TYPE VCC
OCT V2
DN
GP
VB201
2
1
VA201VA202
R220
10K
2V8_VVIB
1u
C250C251
3.9n
R223
10K
LIN_MOTOR_EN
Rev.B
CLOSE TO CONN
1%
EUSY0200803
LINEAR MOTOR DRIVER