Vibrator Trouble - LG KS360 Service Manual

5. Trouble shooting

5.9 Vibrator trouble

Check Points
-Connectors combination
VBAT
C300
1u
VIB_PWR_EN
R303 0
LIN_INVERT
R305 0
LIN_PWM_FRQ
R307
LIN_PWM_MAG
TP3
LGE Internal Use Only
MOTOR CIRCUIT
3V0_VMOT
TP4
U300 R1114D301D-TR-F
1 3
VDD VOUT
4 2
NC GND1
6 5
CE GND2
3V0_VMOT
U301 TC7SZ86FU
1 5
IN_B VCC VIB_PWR_EN
2
IN_A
R306
3 4
GND OUT_Y
130K
U304 TC7SZ86FU
1 5
IN_B VCC
2
0
IN_A
R308
3 4
GND OUT_Y
130K
TP4
C307 2200p
R302 100K
TP3
U302 TPA6205A1DRBR
R304
1 6
_SHUTDOWN VDD
0
2 8
BYPASS VO-
3 5
IN+ VO+
4 7
IN- GND
9
PGND
C314 R309 100K
0.01u
C316 2200p
TP1 TP2
Copyright © 2008 LG Electronics. Inc. All right reserved.
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3V0_VMOT
C313
1u
TP1
L300
VIB-
100nH
OUT300
OUT301
VIB+
TP2
L301
100nH
Only for training and service purposes