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4.9 Speaker Trouble
4.8 Speaker Trouble
TEST POINT
TP3
TP1
CIRCUIT
TP3
TP
C230
1u
AU_MOUTL
C231
1u
AU_MOUTR
C232
1u
RCV_EAR_P
C233
1u
RCV_EAR_N
I2C_SDA1
I2C_SCL1
C250
DNI
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 4.9.1
Figure 4.8.1
VHP VBAT
C225
4.7u
C214
2.2u
C4
E3
IN3-
OUT+
C3
E4
IN3+
OUT-
TP2
A3
B1
IN1+
HPL
B3
M200
IN1-
A1
TPA2055D3
HPR
A4
IN2+
B4
D1
IN2-
CP
B2
E1
SDA
CN
C2
SCL
TP2
C249
C210
C221
C217
DNI
1u
2.2u
1u
4. TROUBLE SHOOTING
TP2
TP1
TP1
FB207
600
BLM15AB601SN1
FB208
600
BLM15AB601SN1
FB202 1800
HP_LOUT
FB201
1800
HP_ROUT
BLM15BD182SN1D
C226
C227
C215
39p
39p
1u
KROW5_GPIO8
AB2
KEY_ROW4
KROW4_GPIO9
AC3
KROW3_GPIO10
KEY_ROW3
AD6
KROW2_GPIO11
KEY_ROW2
AD2
KROW1_GPIO12
KEY_ROW1
AE3
KROW0_GPIO13
KEY_ROW0
AM4
UTXD1
UART_TXD
AJ7
URXD1
UART_RXD
T32
URTS1_B_GPIO25
V30
UCTS1_B_GPIO24
AN3
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4. TROUBLE SHOOTING
TP4
CN201
2
1
SUSY0024807
C208
C207
D208
D209
3.3n
3.3n
DNI
DNI
VIO
TP4
R123
R124
2.2K
2.2K
I2C_SDA1
I2C_SCL1
LGE Internal Use Only
TP4
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