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SGH-S342i Flow Chart of Troubleshooting
VBAT
U400
1
V+
C400
2 NO1
AOUTAN
100NF
39
R401
3
COM1
SPK1N
4 IN1
5 NC1
YMU_SPK1N
GG
11
12 13
R407
10K,1%
MICINP
R406
75K
MICOUTP
C416
390PF
R410
10K,1%
MICINN
R414
75K
MICOUTN
C419
VCCA
390PF
AUXINP
R420
R421
C427
39K,1%
10K,1%
AUXOUTP
C421
470PF
R425
C422
1UF
10K,1%
AUXINN
R427
39K,1%
AUXOUTN
C423
470PF
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10
R400
39
NO2
AOUTAP
COM2 9
SPK1P
8
IN2
AUDIO_OUT_SEL
7
NC2
YMU_SPK1P
GND 6
GG
14
MAX4684ETB
C405
R411
1UF
0
C408
10PF
C406
33PF
C413
R412
1UF
0
C414
10PF
R418
R417
2.2K,1%
2.2K,1%
R419
220
C420
33UF
6.3V
R424
2.2K,1%
R405
2.2K,1%
1UF
AOUTBP
C411
10UF
10V
AOUTBN
10UF
C412
10V
JACK_IN
EAR_SWITCH
C434
C433
NC
NC
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25 24 23 22 21 20
33
G
26
D(1)
D1
27
D(0)
D0
28
CP_WEN
/WR
29
YMU_CS
/CS
VCCD_1.8
30
A(0)
A0
31
CP_OEN
/RD
32
IOVDD
34
C415
G
10UF
1
2
6.3V
C418
100NF
MAIN1
CLK13M_YMU
ICEBERG-FPCB
C409
220PF
YMU_IRQ
RST
L400
BLM10B750SBPT
C425
L401
33PF
BLM10B750SBPT
R440
39
C426
NC
R441
39
AUDIO
2-16
19
18
17
36
G
16
SPVSS
15
SPVDD
R402
R403
14
150K
43K
EQ3
13
C401
U401
EQ2
220PF
12
EQ1
C403
R404
11
22NF
18K
HPOUT-R
10
HPOUT-L/MONO
35
G
3
4
5
6
7
8
9
C410
100NF
VCCD
R413
3.3K
C435
C417
100NF
1NF
VCCD_1.8
R423
R422
180K
100K
EAR_MIC_P
EAR_MIC_N
EAR_SPK_P
EAR_SPK_N
JACK_IN
EAR_SWITCH
C428
C429
180PF
22NF
C430
C431
NC
NC
ZD401
VC040205X150R
ZD400
ESDA6V1-5P6
VBAT
C404
C402
10UF
100NF
6.3V
CN400
1674787-1
1
1
22
3
3
44
5
5
6 6
7
7
88
9
9
10 10
G
GG
G
11 12
13 14
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