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SGH-S342i Flow Chart of Troubleshooting
2-
17
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VIBRATION
EMI FILTER
IRDA
KEY
BACK LIGHT LED
LCD CONNECTOR
R518
82
C501
100NF
12
1
1
2
2
3 3
4
4
5 5
SEND
KEY-XBS
5P
O
IN
T
-V
O
LU
M
E
VOL500
C507
10UF
6.3V
KEY-XBS
PWR
12
A
O
T
-0
60
3P
-B
0
1-
A
L
E
D
51
4
KEY-XBS
UP
12
5
IN
6
IN
OUT
7
8
OUT
9
OUT
OUT
10
F502
NFA21SL307X1A45L
1
GG
2
IN
3
IN
4
ZD506
A
V
L
C
5
S
0
2
1
0
0
33PF
C509
VCCD_1.8
IW
S
-1
64
-W
X
W
F
LE
D
5
10
VBAT
C508
33PF
LE
D
5
09
A
O
T
-0
6
03
P
-B
0
1-
A
AVLC 5S 02 100
ZD516
V
50
1
V
C
0
40
2
05
X
1
50
R
LE
D
5
01
A
O
T
-0
6
03
P
-B
0
1-
A
150
R517
33PF
C502
C519
470PF
IN
4
5
IN
6
IN
OUT
7
8
OUT
9
OUT
OUT
10
F504
NFA21SL307X1A45L
1
GG
2
IN
3
AVLC 5S 02 100
ZD518
CLEAR
KEY-XBS
12
0
KEY-XBS
12
A
O
T
-0
60
3P
-B
0
1-
A
L
E
D
51
3
12
150
R519
LE
D
5
06
A
O
T
-0
6
03
P
-B
0
1-
A
KEY-XBS
SHARP
12
VCCD
A
O
T
-0
60
3P
-B
0
1-
A
L
E
D
51
6
KEY-XBS
5
LE
D
5
07
A
O
T
-0
6
03
P
-B
0
1-
A
200
R516
150
R515
C510
33PF
8
OUT
9
OUT
OUT
10
F503
NFA21SL307X1A45L
1
GG
2
IN
3
IN
4
5
IN
6
IN
OUT
7
12
4
KEY-XBS
12
A
V
LC
5
S
0
2
1
00
ZD501
STO
KEY-XBS
C506
470nF
R525
L
E
D
51
5
47K
2
KEY-XBS
3
12
A
O
T
-0
60
3P
-B
0
1-
A
DOWN
KEY-XBS
1
KEY-XBS
9
12
33PF
C511
KEY-XBS
LEFT
12
82
R514
100
R513
R512
200
150
R511
150
R509
100
R510
12
VCC_CAM
VBAT
2
KEY-XBS
VCCD
ZD510
ZD504
R529
150
R528
390
330
R527
150
150
R526
6
KEY-XBS
12
R520
VBAT
9
OUT
OUT
10
33PF
C512
1
GG
2
IN
3
4
IN
5
IN
6
IN
7
OUT
OUT
8
4.7UF
C504
F500
NFA21SL307X1A45L
ZD505
AVLC 5S 02 100
ZD517
150PF
C517
C505
100NF
150PF
C515
MENU
KEY-XBS
12
I
KEY-XBS
12
ZD503
C514
33PF
ZD502
8
OUT
9
OUT
OUT
10
F505
NFA21SL307X1A45L
1
GG
2
IN
3
IN
4
5
IN
6
IN
OUT
7
6.3V
10UF
C518
A
O
T
-0
6
03
P
-B
0
1-
A
LE
D
5
08
8
KEY-XBS
12
A
O
T
-0
6
03
P
-B
0
1-
A
LE
D
5
02
150PF
ZD509
C516
68
R504
LE
D
5
04
A
O
T
-0
6
03
P
-B
0
1-
A
C503
33PF
ZD508
KEY-XBS
1
12
ZD507
4
IN
IN
5
IN
6
7
OUT
OUT
8
OUT
9
10
OUT
NFA21SL307X1A45L
F506
G
12
G
3
IN
330NF
AVLC 5S 02 100
ZD519
BYP
CTL
GND
VIN
VOUT
C500
LE
D
5
03
MIC5219-3.3BM5
U702
A
O
T
-0
6
03
P
-B
0
1-
A
LE
D
5
12
VCCD_1.8
A
O
T
-0
6
03
P
-B
0
1-
A
68
VBAT
R503
C513
33PF
5
IN
6
IN
OUT
7
8
OUT
9
OUT
OUT
10
F501
NFA21SL307X1A45L
1
GG
2
IN
3
IN
4
CAM
4P
O
IN
T
-V
O
LU
M
E
1 1
2
2
3
3
4 4
6
VCC
LED500
HSDL-3209
7
GND
IOVCC
5
LEDA
1
RXD
2
4
SD
3
TXD
LE
D
5
11
A
O
T
-0
6
03
P
-B
0
1-
A
50
50
6
6
7
78
8
9
9
43
44
44
45
45
46
46
47
47
48 48
49
49
5
5
36
37
37
38
38
39
39
4
4
40
40
41
41
42 42
43
29
29
3
3
30
30
31
31
32
32
33
33
34
34
35
35
36
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
14
15
15
16
16
17
17
18
18
19
19
2
2
20
20
CN500
1
1
10
10
11
11
12
12
13
13
14
ZD500
AVLC 5S 02 100
14-5602-050-001-829
2
A
O
T
-0
6
03
P
-B
0
1-
A
LE
D
5
05
KEY-XBS
7
12
KEY-XBS
RIGHT
1
KEY-XBS
*
12
YMU_VIB_EN
KEY_BACKLIGHT
LCDVIB_EN
FLASH_RST
BL_LED_EN
CAM_SDA
CAM_SCL
MCLK
PCLK
KEY_COL(4)
KEY_ROW(1)
KEY_ROW(2)
LCD_D(9)_FO
LCD_D(15)_FO
LCD_D(1)_FO
LCD_D(11)_FO
LCD_D(5)
LCD_D(3)
LCD_D(7)
LCD_D(13)
LCD_D(5)_FO
LCD_D(3)_FO
LCD_D(13)_FO
LCD_D(7)_FO
LCD_CS
LCD_WEN
LCD_RS_FO
LCD_CS_FO
LCD_WEN_FO
LCD_RS
CAM_FLASH
CAM_FLASH_FO
IRDA_RX
CAM_Y(5)
CAM_Y(4)
CAM_Y(7)
CAM_Y(6)
CAM_Y(1)
CAM_Y(0)
CAM_Y(3)
CAM_Y(2)
Y(5)
Y(7)
Y(6)
Y(4)
Y(1)
Y(3)
Y(2)
Y(0)
LCD_D(9)
LCD_D(15)
LCD_D(1)
LCD_D(11)
LCD_D(12)
LCD_D(4)
LCD_D(2)
LCD_D(14)
LCD_D(6)_FO
LCD_D(14)_FO
LCD_D(12)_FO
LCD_D(10)_FO
LCD_D(10)
LCD_D(8)_FO
LCD_D(0)_FO
LCD_D(2)_FO
LCD_D(4)_FO
LCD_D(8)
KEY_ROW(3)
KEY_ROW(0)
KEY_COL(3)
KEY_COL(1)
DIMMING_EN
LCD_D(3)_FO
HZREF
VTREF
CAM_RESET
LCD_D(0)
LCD_D(6)
LCD_D(10)_FO
LCD_D(8)_FO
LCD_D(0)_FO
LCD_D(2)_FO
LCD_D(4)_FO
CAM_FLASH_FO
LCD_RS_FO
CAM_Y(3)
SPK1P
CAM_Y(6)
CAM_Y(4)
CAM_Y(2)
CAM_Y(0)
LCD_D(15)_FO
LCD_D(11)_FO
LCD_D(9)_FO
LCD_D(1)_FO
LCD_D(13)_FO
LCDVIB_EN
SPK1N
LCD_WEN_FO
LCD_CS_FO
CAM_Y(5)
CAM_Y(7)
LCD_D(6)_FO
LCD_D(14)_FO
LCD_D(12)_FO
CAM_Y(1)
KEY_COL(0:4)
KEY_COL(2)
KEY_COL(0)
KEY_ROW(0:4)
KEY_ROW(4)
PWR_ON
IRDA_TX
IRDA_EN
LCD_D(5)_FO
LCD_D(7)_FO