LG GD510 - Vibrator Trouble

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 75/113 LGE Property
5.8 Vibrator trouble
Check Points
-Vibrator soldering
-IC is working correct
Check the driver
IC(U303)
PWM Signal
Check the vibrator
contact
TP1
TP2
TP3
TP4
TP
TP
TP3
TP4
TC7SZ86FUU301
43
2
51
IN_B VCC
IN_A
GND OUT_Y
100K
R301
3V0_VMOT
R304 100K
2.2nC309
C311
1u
VBAT
U302RP104K301D
5
3 2
4 1
VOUTVDD
GNDCE_NC
D
N
GP
TPA6205A1ZQVRU303
B2C1
A1B1
B3C2
A3C3
IN- VDD
IN+ VO+
_SHUTDOWN VO-
BYPASS GND
3V0_VMOT
1u
C336
C337
1u
10n
C338
R311 120K
R312 120K
U306 TC7SZ86FU
43
2
51
IN_B VCC
IN_A
GND OUT_Y
3V0_VMOT
C343 2.2n
R314 100K
VIB_EN
VIB_EN
LIN_PWM_MAG
LIN_PWM_FRQ
LIN_INVERT
VIB+
VIB-
Vibrator
TP1 TP2
TP3
TP4