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SGH-S400i Flow Chart of Troubleshooting
2-
22
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C122
C154
VCCD_1.8
C117
59 59
6
6
60 60
7
7
8
8
9
9
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
43 43
44 44
45 45
46 46
47 47
48 48
49 49
5
5
50 50
36
36
37
37
38
38
39
39
4
4
40
40
41 41
42 42
29 29
3
3
30
30
31
31
32
32
33
33
34
34
35
35
22
22
23
23
24
24
25 25
26 26
27 27
28 28
14
14
15
15
16
16
17
17
18
18
19
19
2
2
20
20
21
21
1
1
10
10
11
11
12
12
13
13
SLC103
VCCD_2.8
C115
C118
C114
C123
C116
VBAT
BBCAM_D(1)
BBCAM_D(3)
BBCAM_D(5)
BBCAM_D(7)
HSYNC
SVC_EN
CAM_RST
CAM_SCL
AMP_SHDN
AMP_IN-
AOUTAN
BLCD_D(0)
BLCD_D(2)
BLCD_D(4)
BLCD_D(6)
BLCD_D(8)
BLCD_D(10)
BLCD_D(12)
BLCD_D(14)
BMLCD_CS
KEY_ROW(0)
KEY_COL(0)
RESET
KEY_COL(2)
KEY_COL(4)
VIB_EN
PWR_ON
PCLK
BL_ADS
SPK_PHONE
AOUTAP
BLCD_D(15)
BLCD_WEN
BLCD_D(7)
BLCD_D(9)
BLCD_D(11)
BLCD_D(13)
KEY_ROW(1)
KEY_COL(1)
KEY_COL(3)
BACKLIGHT_EN
MCLK
BBCAM_D(0)
BBCAM_D(2)
BBCAM_D(4)
BBCAM_D(6)
VCAM_EN
VSYNC
CAM_SDA
BLCD_D(3)
FLASH_EN
BLCD_D(1)
BLCD_D(5)
R127
IN2
5 NC1
7
NC2
2 NO1
10
NO2
1 V+
COM2 9
11
G
G
12 13
G
G
14
GND 6
4 IN1
8
U110
COM1
3
C144
VBAT
C139
R135
R126
C140
C156
AOUTAN
AMP_SHDN
SPK1P
SPK1N
AOUTAP
SPK_PHONE_OUTP
SPK_PHONE_OUTN