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4. TROUBLE SHOOTING
- 97 -
LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
U201
EUSY0250501
NCS2200SQ2T2G
2
3
1
4
5
VCC
VIN-
OUT
VIN+
GND
R215
0
Q200
EQFP0000101
2SJ347
2
3
1
G
D
S
C230
0.1u
VDD_IO_1V8
R219
1Mohms
R222
390K
FB205
1800
0.1u
C207
R217
1K
10n
C221
00
2
DZ
EDTY0010101
ESD9B5_0ST5G
R200
1M
C203
27p
10n
C220
R202
100K
VDD_IO_1V8
R209
DNI
C223
22n
VHS_MIC
s
mh
o
K5.
1
31
2
R
R208
DNI
L200
100n
22n
C226
C200
1n
VA200
SEVY0003601
R214
2.2Kohms
1800
FB202
2.2uF
C218
C225
DNI
R204
10
1800
FB200
100
R220
1800
FB203
VA202
SEVY0003601
100K
R221
VA201
J200
KJA-PH-3-0176
EAG62831701
6
1
4
4D
5
M5-MIC
M4-DETECT
M4-L
M1-R
M6-GND
EDTY0010101
ZD201
HS_MIC_P
HS_GND
HS_GND
HS_MIC_N
HS_JACK_DET
HS_OUT_R
HS_HOOK_DET
HS_OUT_L
FM_ANT
CIRCUIT
TP1
1u
C208
01
2
C
u1.
0
1800
FB206
1800
FB207
u1.
0
90
2
C
02
21
2
R
11
2
R
02
IC200
3
B
A4
C3
C2
2
B
D1
D3
4
D
C1
A1
D2
1
B
D5
A2
A5
A3
B5
4
B
C5
4
C
D
N
G
OUT+
D
D
V
P
H
CPVDD
CPVSS
CN
HPL
OUT-
S
AI
B
IN2-
HPR
IN1+
D
D
V
S
IN3-
IN2+
A
D
S
IN1-
IN3+
CP
L
C
S
C206
1u
C219
2.2u
C222
2.2u
C224
0.1u
C212
2.2u
VDD_IO_1V8
C213
2.2u
C211
2.2u
C216
47p
C217
47p
0
R216
1800
FB204
I2C_SDA
I2C_SCL
HS_GND
HS_L
HS_R
HS_OUT_R
SPK_P
HS_OUT_L
SPK_N
TEST RES added
TP
TP4
TP5
TP6
TP3
TP7
TP8
TP9
TP10
TP11
TP1
TP13