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SGH-P408 Flow Chart of Troubleshooting
3-
8
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EAR_MIC_P
EAR_SPK_
N
EAR_MIC_
N
EAR_SPK_P
JACK_IN
AUDIO
MAIN_MIC
NC
C405
100NF
C408
R404
82K
120K
R403
C4019
1NF
150PF
C419
R421
56K
4.7NF
C421
C412
6.3V
4.7UF
100NF
C402
ZD40
3
R405
C416
33UF
33K
R402
12
100K
R401
12
ZD405
R400
VBAT
C410
NC
3.3K
R408
10K
R407
R409
R411
680
NC
C415
56K
ZD40
2
ZD40
1
C407
C401
120PF
220PF
C413
1NF
C420
8PF
C414
100NF
6.3V
C404
4.7UF
R420
1K
R419
18K
R418
10K
2.2K
R410
VREF
VSS
8
/CS
29
3
/IRQ
/RD
31
/RST
4
28
/WR
MT
R
5
NC
PLLC
6
17
SPOUT
1
SPOUT
2
18
15
SPVD
D
SPVSS
16
7
VD
D
9
EQ1
12
13
EQ2
EQ3
14
HPOUT-L/MON
O
10
11
HPOUT-R
IOVDD
32
LED
2
19
CLKI
D0
27
26
D1
25
D2
D3
24 23
D4
D5
22
D6
21
D7
20
1
V+
U401
30
A0
1
COM2
6
GND
IN1
4
IN2
8
5
NC1
7
NC2
NO1
2
NO2
10
VCCD
U400
3
COM1
9
CN401
1
2
3
4
5
6
VCCD
C403
22NF
NC
C418
NC
R417
NC
R416
0
56K
R415
10K
R414
R412
2.2K
R413
33PF
C411
1UF
C417
C4020
1UF
C409
150PF
C4018
1NF
VCCD
VCCA
Q400
2
3
1
C400
VCCA
SPK1P
SPK1N
YMU_SPK1
N
YMU_SPK1P
YMU_LED
CP_WEN
100NF
JACK_IN
AOUTB
P
YMU_VIB_EN
AOUTAP
AOUTAN
AUDIO_AMP_EN
AOUTBN
D(4)
D(3)
D(1)
D(0)
CP_OEN
A(0)
YMU_EN
AUXOUT
AUXIN
MICOUT
MICIN
EAR_SWITC
H
D(2)
YMU_SPK1P
CLK13M_YMU
YMU_SPK1N
YMU_IRQ
RST
D(5)
D(6)
D(7)