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5.9 Vibrator trouble
Check Points
-Connectors combination
TP2
TP3
TP4
TP1
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
- 80 -
MOTOR CIRCUIT
VIB+
VIB-
R302 100K
C303 1u
2
IN_A
1
IN_B
4
OUT_Y
VCC
5
U301 TC7SZ86FU
GND
3
3V0_VMOT
OUT300
2200pC307
L301
100nH
R301
100K
3V0_VMOTVBAT
U300 R1114D301D-TR-F
CE
6
2
GND1
5
GND2
4
NC
VDD
13
VOUT
3V0_VMOT
R306
130K
R305 0
130K
R308
1u
R303 0
C300
R309 100KC314
R304
0
0.01u
R307 0
OUT301
C316 2200p
100nH
L300
1u
C313
1
IN_B
4
OUT_Y
VCC
5
VO+
5
VO-
8
1
_SHUTDOWN
U304 TC7SZ86FU
GND
3
2
IN_A
TPA6205A1DRBRU302
BYPASS
2
GND
7
3
IN+
4
IN-
9
PGND
6
VDDVIB_PWR_EN
VIB_PWR_EN
LIN_PWM_FRQ
LIN_INVERT
LIN_PWM_MAG
TP4
TP3
TP1
TP2