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SGH-P400 Flow Chart of Troubleshooting
3-
8
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EAR_SPK_P
JACK_IN
EAR_MIC_P
EAR_SPK_N
EAR_MIC_N
C401
120PF
C413
1NF
MAIN_MI C
NC
C405
100NF
C408
R404
82K
120K
R403
C4019
1NF
150PF
C419
R421
56K
4.7NF
C421
C412
6.3V
4.7UF
100NF
C402
ZD403
R405
C416
33UF
33K
NC
C418
C403
22NF
R417
NC
R416
NC
R402
12
R401
12
ZD405
R400
100K
C410
NC
3.3K
R408
VBAT
10K
R407
R409
R411
680
NC
C415
56K
ZD402
ZD401
VCCA
220PF
C407
Q400
2
3
1
C400
VCCA
100NF
C420
8PF
C414
100NF
C404
4.7UF
1K
R419
6.3V
10K
R420
R410
18K
R418
3
/IRQ
/RD
31
/RST
4
28
/WR
2.2K
17
SPOUT
1
SPOUT
2
18
15
SPVDD
SPVSS
16
7
VDD
9
VREF
VSS
8
/CS
29
EQ2
EQ3
14
HPOUT-L/MONO
10
11
HPOUT-R
IOVDD
32
LE
D
2
19
MT
R
5
NC
PLLC
6
D1
25
D2
D3
24 23
D4
D5
22
D6
21
D7
20
EQ1
12
13
U401
30
A0
1
CLKI
D0
27
26
IN2
8
5
NC1
7
NC2
NO1
2
NO2
10
1
V+
U400
3
COM1
9
COM2
6
GND
IN1
4
3
4
5
6
VCCD
CN401
1
2
VCCD
0
56K
R415
10K
R414
R412
2.2K
R413
33PF
C411
1UF
C417
C4020
1UF
C409
150PF
C4018
1NF
VCCD
SPK1P
SPK1N
YMU_SPK1N
YMU_SPK1P
YMU_LED
CP_WEN
JACK_IN
AOUTBP
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_SWITCH
D(2)
YMU_SPK1P
CLK13M_YMU
YMU_SPK1N
YMU_IR Q
RST
D(5)
D(6)
D(7)