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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
CIRCUIT
AUDIO AMP
EUSY0360201
C651
1u
2.2u
C658
C650
1u
C653
0.1u
VBAT
C659
27p
C656
2.2u
1u
C646
B3
SCL
SDA
B2
VDDA
B1
B4
VDDLS
VO_LDO
D2
VSSCP
C4
C3
BYPASS
CIN
D3
D4
CIP
GND
A2
E4
GND_CP
A1
I2CVDD
LIN
C1
E3
LOUT
A4
MONO+
A3
MONO-
E1
MONO_IN-
D1
RIN
C2
E2
ROUT
LM49150TLX
U603
1u
C647
2V93_VEXT
C644
1u
1u
C652
1u
1u
C643
C648
27p
C660
C649
1u
C655
2.2u
C645
0.1u
C657
0.1u
C654
2.2u
SPK_P
SPK_N
HP_ROUT
HP_LOUT
SPK_RCV_P
SPK_RCV_N
EXT_SPK_L
I2C_SCL
I2C_SDA
EXT_SPK_R
MM_L
FM_L
FM_R
MM_R
RCV_N
RCV_P
27p
C642
1V8_MM_AUDIO
0.1u
C640
R608
100K
C641
27p
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
1
V+
DG2735DN-T1-E3
U601
MM_HP_L
HSO_3.5_R
HSO_3.5_L
HP_ROUT
MM_HP_R
EAR_PATH_SEL
EAR_PATH_SEL
HP_LOUT
TP
6
TP7
TP8
TP
9
TP4
TP5