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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
82/140
CIRCUIT
4.9 Speaker Trouble
TEST POINT
Figure 4.9.1
4. TROUBLE SHOOTING
TP4
TP2
TP1
TP3
TP2
TP1
TP3
TP4
C249
DNI
CN201
SUSY0024807
2
1
D209
DNI
TPA2055D3
M200
3
D
1
C
2
E
2
A
C2
B2
B4
A4
B3
E1
A3
D1
A1
C3
B1
E4
E3
C4
4
D
2
D
D
D
V
P
H
D
D
V
P
S
IN3-
OUT+
OUT-
HPL
IN3+
HPR
CP
IN1+
CN
IN1-
IN2+
IN2-
SDA
SCL
S
AI
B
D
D
V
P
C
S
S
V
P
C
D
N
G
FB208
BLM15AB601SN1
600
FB202 1800
3.3n
C207
C210
2.2u
C226
39p
39p
C227
1u
C217
1u
C215
1u
C221
1800
BLM15BD182SN1D
FB201
DNI
D208
C208
3.3n
1u
C233
1u
C232
DNI
C250
4.7u
C225
2.2u
C214
VHP VBAT
1u
C230
1u
C231
FB207
BLM15AB601SN1
600
HP_ROUT
HP_LOUT
AU_MOUTL
AU_MOUTR
I2C_SDA1
I2C_SCL1
RCV_EAR_P
RCV_EAR_N
TP
VIO
2.2K
R124
2.2K
R123
AN3
V30
T32
AJ7
AM4
AE3
AD2
AD6
AC3
AB2
KROW5_GPIO8
KROW4_GPIO9
KROW3_GPIO10
KROW2_GPIO11
KROW1_GPIO12
KROW0_GPIO13
UTXD1
URXD1
URTS1_B_GPIO25
UCTS1_B_GPIO24
UART_TXD
UART_RXD
KEY_ROW0
KEY_ROW2
I2C_SDA1
I2C_SCL1
KEY_ROW1
KEY_ROW4
KEY_ROW3
TP2
TP1
TP4
4.8 Speaker Trouble
Figure 4.8.1
Содержание LG-A155
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