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SGH-S400i Flow Chart of Troubleshooting
2-
18
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R354
C379
R352
R358
C372
IN2
8
5
NC1
7
NC2
NO1
2
NO2
10
1
V+
3
COM1
9
COM2
11
G
G
12
13
G
G
14
6
GND
IN1
4
U309
R353
MIC300
VCCD_2.9V
C366
C371
R359
VR301
C365
VR302
R355
C376
C396
C369
MIC_BIAS
MIC+
MIC+
MIC_SEL
MAIN_MIC_M
MIC-
MIC+
MAIN_MIC_P
MAIN_MIC_P
MIC-
MAIN_MIC_M
MICOUTP
MICINP
MICINN
MICOUTN