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RST
GREEN_LED
LCDVIB_EN
LED_EN
D(8)_FO
D(9)_FO
D(10)_FO
D(11)_FO
D(12)_FO
D(13)_FO
D(14)_FO
D(15)_FO
MSPK+
MSPK-
RED_LED
EL_PWR
R201
12
AOUTAP
R202
0
SPK1N
26
D(1)
27
D(0)
28
CP_WEN
29
YMU_EN
VCCD
30
A(0)
31
CP_OEN
32
R470
0
CLK13M_YMU
MELODY_LED
YMU_IRQ
C415
100PF
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SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams
VBAT
18
18
19 19
20
20
21 21
22
22
23 23
24
24
25 25
26
26
27 27
28
28
29 29
30
30
31 31
32
32
33 33
34
34
R221
CN200
0
C207
C205
100PF
330NF
(Picture 1)
25 24 23 22 21 20
19
18
17
D1
D0
SPVDD
/WR
U401
/CS
A0
/RD
HPOUT-R
HPOUT-L/MONO
IOVDD
1
2
3
4
5
6
7
8
9
RST
C410
C411
10UF
1NF
6.3V
(Picture 2)
4-9
VCCD
R200
33
17
17
16 16
15
15
14
14
13
D(0)_FO
13
D(1)_FO
12
12
11
D(2)_FO
11
10
D(3)_FO
10
9
D(4)_FO
9
8
D(5)_FO
8
D(6)_FO
7
7
6
D(7)_FO
6
5
A(2)_FO
5
4
CP_WEN_FO
4
3
EL_EN
3
CLCD_EN_FO
2
2
1
GLCD_EN_FO
1
C206
C200
NC
33NF
16
15
R403
150K
14
EQ3
13
EQ2
C401
12
270PF
C403
EQ1
22NF
11
R407
R434
33K
10
NC
C408
100NF
VCCD
C412
100NF
VBAT
R404
33K
C402
100NF
C404
4.7UF
6.3V
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